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Author SHA1 Message Date
huanghuoguoguo 2b03095d4e refactor(tools): unify tool-detail normalization in ToolManager
Drop the PluginToolLoader.get_tool() override that returned a raw
ComponentManifest, so every loader's get_tool() now returns a uniform
resource_tool.LLMTool (PluginToolLoader.get_tools() already did this
conversion). This removes the only source of tool-shape heterogeneity.

- ToolManager.get_tool_schema(): drop the ComponentManifest-vs-LLMTool branch
- ToolManager.get_tool_detail(): new host-level shape {name, description,
  human_desc, parameters}
- handler.py GET_TOOL_DETAIL: call tool_mgr.get_tool_detail(); delete the
  handler-local _build_tool_detail + _i18n_to_dict/_i18n_to_text adapters and
  the litellm TODO
- ToolLookupResult is now just LLMTool

The dropped label/spec fields were not consumed by any runner (local-agent
build_llm_tool and external harnesses use only name/description/parameters).
2026-06-22 13:39:45 +08:00
huanghuoguoguo c7d4885bfc refactor(plugin): split agent-runner action handlers out of handler.py
Extract the AgentRunner Protocol v1 host-side surface from the giant
RuntimeConnectionHandler.__init__ into sibling modules using a registration-
function pattern (behavior-preserving; @h.action == @self.action):

- agent_run_support.py: shared constants + authorization/scope/projection helpers
- agent_pull_actions.py: register(h) for history/event pull APIs
- agent_runner_actions.py: register(h) for run/runtime/stats/claim lifecycle
- agent_state_actions.py: register(h) for steering/state APIs

__init__ now calls the three register(self) functions. handler.py keeps the
pre-existing plugin/llm/vector/knowledge handlers, get_prompt/call_tool/
get_tool_detail (coupled to retained helpers), shared helpers, and outbound
methods; it re-imports _validate_agent_run_session so external imports keep
working. handler.py: 4066 -> 1871 lines.

test_state_api_auth.py: repoint get_session_registry patch targets to
agent_run_support (the lookup moved modules). 385 agent unit tests pass; ruff clean.
2026-06-22 13:08:34 +08:00
huanghuoguoguo 4b34d4cffd test(qa): sandbox-skill-authoring OPERATE passes on nsjail + docker (#2271 fixed)
- nsjail: full create→exec→register→activate→exec-from-activated-path chain
  returns exit 0; activated mount runs scripts/use.py (reads data/input.json)
  and writes activated_writeback.txt through to the host skill store.
- docker: same chain now passes after langbot-plugin-sdk#87 (recreate sandbox
  container when extra_mounts change). Corrected #2271 root cause from
  'docker masks nested bind mount' to container-reuse: extra_mounts was not in
  the box session compatibility check, so docker reused a running container and
  could not append the activated skill's bind mount.
- Exit criterion 3 (real end-to-end skill use) now DONE; all 5 criteria met.
- Documents the nsjail stale-docker-artifact environment gotcha.
2026-06-22 11:24:03 +08:00
huanghuoguoguo 96f5b5e365 test(qa): correct acp parity verdict — passes on clean runtime, no public-url
Prior matrix recorded acp as blocked needing langbot-assets-gateway-public-url
(PROBEDONE 0 0 / timeout). That was an environment artifact: a duplicate
LangBot-master/ backend contending on box ws-control-port 5410 plus a wedged
plugin runtime (host emit_event / list_agent_runners timing out). On a clean
single-instance runtime acp discovers skills via the SDK SSH reverse tunnel
with no public-url: PROBEDONE 1 17 (8-24s), parity with claude-code (1 15).
2026-06-22 09:08:29 +08:00
huanghuoguoguo 73be17b02c test(qa): record claude-code-agent skill discovery PASS + acp transport finding
- claude-code-agent (new pipeline, remote-ssh->101): langbot_list_assets returns
  skills=1 tools=15 in 24s -> all-tool 'skills' asset class is discoverable
  end-to-end by an external harness on the unmodified branch
- document the runner transport difference: claude-code uses a stdio bridge
  (works on remote-ssh out of the box), acp uses an HTTP proxy (needs
  langbot-assets-gateway-public-url on remote-ssh). This is a runner-plugin
  detail, not a host all-tool-branch issue
2026-06-22 08:16:35 +08:00
huanghuoguoguo e5a5188442 test(qa): skill all-tool acceptance matrix + mcp-gateway discovery case
- references/skill-all-tool-acceptance.md: acceptance matrix for the skill
  all-tool model (runner x lifecycle x backend), case status, exit criteria,
  and the #2271 known issue (pre-existing box nested-mount, not this branch)
- cases/skill-discovery-via-mcp-gateway.yaml: schema-valid case proving an
  external harness discovers skills via langbot_list_assets (the new 'skills'
  asset class); marked blocked-env until remote claude-code is responsive
2026-06-21 23:46:22 +08:00
huanghuoguoguo 190028d5ab feat(skill): unify skill activation as authorized tools
Expose skill tools (activate/register_skill/native exec) like native tools
instead of gating them behind the skill_authoring capability:
- toolmgr.get_all_tools drops include_skill_authoring; SkillToolLoader
  self-gates on sandbox + skill_mgr
- preproc drops the include_skill_authoring branch; pipeline-bound skills
  and the skills resource gate on skill_mgr presence

Persist activated skills into host.activated_skills conversation state so
they survive across runs (host writes at activate; last-write-wins); drop
the dead restore_activated_skills helper.

Prefill ToolResource.parameters host-side (tool_mgr.get_tool_schema) so
runners build LLM tools without per-tool get_tool_detail round-trips.

Align agent-runner-pluginization design docs to the all-tool model.
2026-06-21 09:27:05 +08:00
huanghuoguoguo cede35b31b feat(agent-runner): add plugin runner host integration 2026-06-20 20:12:02 +08:00
206 changed files with 29311 additions and 10429 deletions
-9
View File
@@ -52,15 +52,6 @@ RUN apt-get update \
&& echo "deb [arch=$(dpkg --print-architecture) signed-by=/etc/apt/keyrings/docker.asc] https://download.docker.com/linux/debian $(. /etc/os-release && echo \"$VERSION_CODENAME\") stable" > /etc/apt/sources.list.d/docker.list \
&& apt-get update \
&& apt-get install -y --no-install-recommends docker-ce-cli \
# Install Node.js LTS so the sandbox (nsjail/Docker box) can run npx-based
# stdio MCP servers. node/npx land in /usr/bin, which is on the nsjail
# read-only mount whitelist (_READONLY_SYSTEM_MOUNTS), so they are bound
# into the sandbox chroot automatically. Without node, any npx-launched
# MCP server exits with return_code=127 (command not found).
&& curl -fsSL https://deb.nodesource.com/setup_22.x -o /tmp/nodesource_setup.sh \
&& bash /tmp/nodesource_setup.sh \
&& apt-get install -y --no-install-recommends nodejs \
&& rm -f /tmp/nodesource_setup.sh \
&& python -m pip install --no-cache-dir uv \
&& uv sync \
&& apt-get purge -y --auto-remove curl gnupg \
+1 -7
View File
@@ -55,12 +55,6 @@ LangBot is an **open-source, production-grade platform** for building AI-powered
---
## 😎 Stay Updated
Click the Star and Watch buttons in the top-right corner of the repository to get the latest updates.
![star gif](https://langbot.app/star.gif)
## Quick Start
### ☁️ LangBot Cloud (Recommended)
@@ -80,7 +74,7 @@ uvx langbot
```bash
git clone https://github.com/langbot-app/LangBot
cd LangBot/docker
docker compose --profile all up -d
docker compose up -d
```
### One-Click Cloud Deploy
+1 -7
View File
@@ -55,12 +55,6 @@ LangBot 是一个**开源的生产级平台**,用于构建 AI 驱动的即时
---
## 😎 保持更新
点击[仓库首页](https://github.com/langbot-app/LangBot)右上角 Star 和 Watch 按钮,获取最新动态。
![star gif](https://langbot.app/star.gif)
## 快速开始
### ☁️ LangBot Cloud(推荐)
@@ -80,7 +74,7 @@ uvx langbot
```bash
git clone https://github.com/langbot-app/LangBot
cd LangBot/docker
docker compose --profile all up -d
docker compose up -d
```
### 一键云部署
+1 -7
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@@ -54,12 +54,6 @@ LangBot es una **plataforma de código abierto y grado de producción** para con
---
## 😎 Manténgase Actualizado
Haga clic en los botones Star y Watch en la esquina superior derecha del repositorio para obtener las últimas actualizaciones.
![star gif](https://langbot.app/star.gif)
## Inicio Rápido
### ☁️ LangBot Cloud (Recomendado)
@@ -79,7 +73,7 @@ uvx langbot
```bash
git clone https://github.com/langbot-app/LangBot
cd LangBot/docker
docker compose --profile all up -d
docker compose up -d
```
### Despliegue en la Nube con un Clic
+1 -7
View File
@@ -54,12 +54,6 @@ LangBot est une **plateforme open-source de niveau production** pour créer des
---
## 😎 Restez à Jour
Cliquez sur les boutons Star et Watch dans le coin supérieur droit du dépôt pour obtenir les dernières mises à jour.
![star gif](https://langbot.app/star.gif)
## Démarrage Rapide
### ☁️ LangBot Cloud (Recommandé)
@@ -79,7 +73,7 @@ uvx langbot
```bash
git clone https://github.com/langbot-app/LangBot
cd LangBot/docker
docker compose --profile all up -d
docker compose up -d
```
### Déploiement Cloud en un Clic
+1 -7
View File
@@ -54,12 +54,6 @@ LangBot は、AI搭載のインスタントメッセージングボットを構
---
## 😎 最新情報を入手
リポジトリの右上にある Star と Watch ボタンをクリックして、最新の更新を取得してください。
![star gif](https://langbot.app/star.gif)
## クイックスタート
### ☁️ LangBot Cloud(推奨)
@@ -79,7 +73,7 @@ uvx langbot
```bash
git clone https://github.com/langbot-app/LangBot
cd LangBot/docker
docker compose --profile all up -d
docker compose up -d
```
### ワンクリッククラウドデプロイ
+1 -7
View File
@@ -54,12 +54,6 @@ LangBot은 AI 기반 인스턴트 메시징 봇을 구축하기 위한 **오픈
---
## 😎 최신 정보 받기
리포지토리 오른쪽 상단의 Star 및 Watch 버튼을 클릭하여 최신 업데이트를 받으세요.
![star gif](https://langbot.app/star.gif)
## 빠른 시작
### ☁️ LangBot Cloud (추천)
@@ -79,7 +73,7 @@ uvx langbot
```bash
git clone https://github.com/langbot-app/LangBot
cd LangBot/docker
docker compose --profile all up -d
docker compose up -d
```
### 원클릭 클라우드 배포
+1 -7
View File
@@ -54,12 +54,6 @@ LangBot — это **платформа с открытым исходным к
---
## 😎 Оставайтесь в курсе
Нажмите кнопки Star и Watch в правом верхнем углу репозитория, чтобы получать последние обновления.
![star gif](https://langbot.app/star.gif)
## Быстрый старт
### ☁️ LangBot Cloud (Рекомендуется)
@@ -79,7 +73,7 @@ uvx langbot
```bash
git clone https://github.com/langbot-app/LangBot
cd LangBot/docker
docker compose --profile all up -d
docker compose up -d
```
### Облачное развертывание одним кликом
+1 -7
View File
@@ -56,12 +56,6 @@ LangBot 是一個**開源的生產級平台**,用於建構 AI 驅動的即時
---
## 😎 保持更新
點擊倉庫右上角 Star 和 Watch 按鈕,獲取最新動態。
![star gif](https://langbot.app/star.gif)
## 快速開始
### ☁️ LangBot Cloud(推薦)
@@ -81,7 +75,7 @@ uvx langbot
```bash
git clone https://github.com/langbot-app/LangBot
cd LangBot/docker
docker compose --profile all up -d
docker compose up -d
```
### 一鍵雲端部署
+1 -7
View File
@@ -54,12 +54,6 @@ LangBot là một **nền tảng mã nguồn mở, cấp sản xuất** để x
---
## 😎 Cập nhật Mới nhất
Nhấp vào các nút Star và Watch ở góc trên bên phải của kho lưu trữ để nhận các bản cập nhật mới nhất.
![star gif](https://langbot.app/star.gif)
## Bắt đầu nhanh
### ☁️ LangBot Cloud (Khuyên dùng)
@@ -79,7 +73,7 @@ uvx langbot
```bash
git clone https://github.com/langbot-app/LangBot
cd LangBot/docker
docker compose --profile all up -d
docker compose up -d
```
### Triển khai đám mây một cú nhấp
-575
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@@ -1,575 +0,0 @@
# HTTP Bot Adapter — Design Document
> Status: **Implemented** · Branch: `feat/http-bot-adapter` · Author: LangBot core
>
> A first-class, **standalone** message-platform adapter (`http_bot`) that lets
> any external system (e.g. LangBot Space ticketing, an internal back-office, a
> CRM, a custom web app) talk to a LangBot pipeline over plain HTTP — **inbound**
> by POSTing messages in, **outbound** by receiving replies on a callback URL —
> with full support for the pipeline's native N→1 aggregation and 1→M
> multi-reply semantics, and **without** holding a long-lived WebSocket
> connection.
>
> **Shipped in this branch:**
> - `src/langbot/pkg/platform/sources/http_bot.yaml` — adapter manifest (auto-discovered)
> - `src/langbot/pkg/platform/sources/http_bot.py` — `HttpBotAdapter`
> - `src/langbot/pkg/platform/sources/http_bot_signing.py` — HMAC helpers
> - `src/langbot/pkg/platform/sources/http_bot.svg` — icon
> - `docs/platforms/http-bot.md` — integration guide
> - `docs/http-bot-openapi.json` — machine-readable contract
> - `examples/http-bot/` — Python + TypeScript reference clients
>
> **Final decisions (resolving the original open questions):**
> 1. Callback URL is **config-only** — never accepted per-message (SSRF closed).
> 2. **Session reset is provided** — `POST /bots/<uuid>/reset` keyed by `session_id`.
> 3. Reference **clients are provided** — `examples/http-bot/client.py` + `client.ts`.
> 4. **Sync convenience mode is included** — `POST /bots/<uuid>/sync` (opt-in, lossy).
---
## 1. Background & Motivation
### 1.1 The concrete need
LangBot Space wants to use a LangBot pipeline as the brain for **ticket
handling**. The integration is **server-to-server**: Space's backend pushes a
user's ticket messages into LangBot and renders LangBot's replies back into the
ticket thread.
This interaction is **not** request/response shaped:
- **N → 1**: a user may fire several messages in a row ("the app crashed" …
"when I click export" … "here's a screenshot"). The pipeline's
**message aggregation** feature should debounce and merge these into one turn.
- **1 → N**: a single turn may yield **multiple** outbound messages — a tool/
function call narrating progress, a plugin emitting several cards, a streamed
answer split into chunks.
### 1.2 Why the existing options don't fit
LangBot today exposes exactly one externally-reachable way to drive a pipeline
that is **not** tied to a specific IM vendor: the **WebSocket** path
(`/api/v1/pipelines/<uuid>/ws/connect` for dashboard debug, and
`/api/v1/embed/<bot_uuid>/ws/connect` for the embeddable web widget).
For a server-to-server integration the WebSocket path has real friction:
| Problem | Detail |
|---|---|
| Long-lived connection | Caller must maintain a socket, heartbeats, and reconnect logic for what is fundamentally a fire-and-collect workload. |
| Session identity | Inbound messages are keyed by the transient `connection_id` (`websocket_{connection_id}`); the caller **cannot supply a stable, business-meaningful session id** (e.g. a ticket number). Multi-ticket isolation is not expressible. |
| Auth mismatch | The debug socket is gated by the **dashboard JWT** (must not be handed to an external service); the embed socket is gated by **Cloudflare Turnstile** (a *browser* human-check that a backend cannot satisfy). Neither is a server-to-server credential. |
| In-memory, single-process state | Session history lives in process memory and is lost on restart. |
> **Key realisation.** The N→1 / 1→M behaviour the caller wants is **not**
> provided by WebSocket — it is provided by the **pipeline** (aggregation +
> the adapter being free to call `reply_message` any number of times). It is
> therefore **transport-independent**. We can deliver the exact same semantics
> over a far lighter HTTP transport.
### 1.3 Why a *new, standalone* adapter (not a refactor of an existing one)
The brief is explicit: **do not reuse / fork an existing vendor adapter.** The
vendor adapters (`lark`, `wecom`, `qqofficial`, `slack`, …) carry vendor-specific
signature schemes, payload shapes, and message-segment mappings. Bending one of
them into a "generic" mode would couple a public integration surface to one
vendor's quirks and make the developer experience worse for everyone.
Instead we ship `http_bot` as a clean, independent adapter whose **entire
contract is LangBot's own** — documented, versioned, and designed front-to-back
around *integrator* developer experience.
---
## 2. Goals & Non-Goals
### Goals
- **G1** A standalone `http_bot` adapter, selectable like any other platform
adapter in the dashboard, with its own config schema and docs.
- **G2** **Inbound**: external systems POST messages to a stable LangBot URL,
carrying a **caller-defined `session_id`** that maps 1:1 to a LangBot session.
- **G3** **Outbound**: LangBot delivers each reply by POSTing to a
caller-configured **callback URL**; one turn may produce **many** callbacks.
- **G4** Preserve pipeline-native **N→1 aggregation** and **1→M multi-reply**.
- **G5** Server-to-server **auth**: shared-secret HMAC request signing both
directions (no JWT, no Turnstile, no long-lived socket).
- **G6** **Great DX**: copy-pasteable curl, a tiny reference client, an OpenAPI
fragment, idempotency, clear error envelope, and a local echo-server recipe.
### Non-Goals
- Not replacing or deprecating the WebSocket / embed widget path (that remains
the right tool for *browser*, real-time, streaming chat UIs).
- Not a synchronous "one request → one response" RPC (explicitly rejected: it
cannot express 1→M; see §9 for the optional sync convenience mode).
- No built-in message **persistence/replay** in v1 (callbacks are at-least-once
best-effort; durability is the caller's responsibility — see §8).
- No multi-tenant API-key management UI in v1 (one secret per bot; see §11).
---
## 3. How LangBot routes a message (the parts we plug into)
Understanding the existing flow is what makes this adapter cheap. A message
flows through these stages (verified against current `master`):
```
INBOUND OUTBOUND
external POST ─┐ ┌─ reply_message()
▼ │ reply_message_chunk()
POST /bots/<bot_uuid> (unified webhook router, AuthType.NONE)
│ webhooks.py → adapter.handle_unified_webhook(bot_uuid, path, request)
▼ │
HttpBotAdapter.handle_unified_webhook │ (called 0..N times
• verify HMAC signature │ per turn by the
• parse {session_id, message[]} │ pipeline / plugins)
• build FriendMessage / GroupMessage │
• fire registered listener ───────────────┐ │
│ │ │
▼ ▼ │
botmgr.on_friend_message / on_group_message │
• (optional) webhook_pusher fan-out │
• msg_aggregator.add_message(...) ── N→1 debounce ──►│
│ │
▼ │
query_pool → pipeline.run() ─── invokes adapter ─────┘
reply methods 1..M times
```
Two framework facts we rely on:
1. **N→1 aggregation is free.** `botmgr` hands every inbound event to
`self.ap.msg_aggregator.add_message(...)`, which debounces per
`session_id` and merges consecutive messages into one pipeline turn
(`pkg/pipeline/aggregator.py`). The adapter does nothing special.
2. **1→M is free.** The pipeline (and any plugin in the chain) calls
`adapter.reply_message()` / `reply_message_chunk()` **as many times as it
wants** per turn. The adapter's only job is to deliver each call outward.
For `http_bot` that means: **one outbound callback POST per call.**
3. **A unified inbound route already exists.** `WebhookRouterGroup`
(`pkg/api/http/controller/groups/webhooks.py`) maps
`POST /bots/<bot_uuid>[/<path>]` (auth `NONE`) to
`adapter.handle_unified_webhook(bot_uuid, path, request)`. `http_bot`
implements that method and is reachable **without registering any new
route** — it does its own signature verification, exactly like the vendor
webhook adapters do.
> Net new code is essentially: one `http_bot.py` adapter, one `http_bot.yaml`
> schema, signing helpers, and docs. No router, aggregator, or pipeline changes.
---
## 4. Architecture Overview
```
┌────────────────────┐ (1) inbound: POST signed message
│ External system │ ──────────────────────────────────────────────► ┌──────────────────────┐
│ (LangBot Space, │ POST /bots/<bot_uuid> │ LangBot │
│ CRM, web app …) │ X-LB-Signature, X-LB-Timestamp │ │
│ │ { session_id, message:[...] } │ HttpBotAdapter │
│ - callback server │ ◄────────────────────────────────────────────── │ (platform/sources) │
│ (receives │ (4) outbound: POST signed reply(s) │ │
│ replies) │ POST <callback_url> │ pipeline + aggregator│
└────────────────────┘ X-LB-Signature, X-LB-Timestamp └──────────────────────┘
{ session_id, sequence, is_final,
message:[...] } (sent 1..M times)
```
- The adapter is **stateless across requests** at the HTTP layer; session
continuity is carried by `session_id` and resolved by LangBot's normal
session manager.
- **Inbound** and **outbound** are **independent HTTP exchanges**. LangBot does
not answer the inbound POST with the pipeline result; it `202 Accepts` it and
later POSTs the reply(s) to the callback URL. This is what makes 1→M natural.
---
## 5. Configuration Schema (`http_bot.yaml`)
Follows the existing `MessagePlatformAdapter` manifest convention (cf.
`slack.yaml`). Fields:
| field | type | required | purpose |
|---|---|---|---|
| `inbound_secret` | string (secret) | yes | HMAC key the **caller** uses to sign inbound POSTs; LangBot verifies. |
| `callback_url` | string (url) | no* | Where LangBot POSTs replies. *Optional if the caller supplies `callback_url` per-message (see §6.1); a static default lives here. |
| `outbound_secret` | string (secret) | no | HMAC key LangBot uses to sign outbound callbacks; caller verifies. Defaults to `inbound_secret` if empty. |
| `default_session_type` | enum `person`/`group` | no | Default when a message omits `session_type`. Default `person`. |
| `signature_required` | bool | no | If `false`, skip inbound signature check (dev only; logs a warning). Default `true`. |
| `callback_timeout` | int (seconds) | no | Per-callback HTTP timeout. Default `15`. |
| `callback_max_retries` | int | no | Retries on 5xx/timeout with backoff. Default `3`. |
| `webhook_url` | webhook-url (display) | — | Read-only field rendering the inbound URL `…/bots/<bot_uuid>` for copy-paste, like other webhook adapters. |
Manifest sketch (i18n labels elided for brevity):
```yaml
apiVersion: v1
kind: MessagePlatformAdapter
metadata:
name: http_bot
label: { en_US: "HTTP Bot", zh_Hans: "HTTP 通用接入" }
description:
en_US: "Integrate any backend over plain HTTP. Push messages in, receive replies on a callback URL. Server-to-server, no long-lived connection."
zh_Hans: "通过 HTTP 接入任意后端系统。推入消息、在回调地址接收回复。面向服务间集成,无需长连接。"
icon: http_bot.svg
spec:
categories: [popular, global]
help_links:
zh: https://docs.langbot.app/zh/platforms/http-bot
en: https://docs.langbot.app/en/platforms/http-bot
config:
- { name: inbound_secret, type: string, required: true, default: "" }
- { name: callback_url, type: string, required: false, default: "" }
- { name: outbound_secret, type: string, required: false, default: "" }
- { name: default_session_type, type: select, required: false, default: "person",
options: [person, group] }
- { name: signature_required, type: boolean, required: false, default: true }
- { name: callback_timeout, type: integer, required: false, default: 15 }
- { name: callback_max_retries, type: integer, required: false, default: 3 }
- { name: webhook_url, type: webhook-url, required: false, default: "" }
execution:
python:
path: ./http_bot.py
attr: HttpBotAdapter
```
---
## 6. The HTTP Contract (this is the DX surface)
### 6.1 Inbound — push a message into LangBot
```
POST /bots/{bot_uuid}
Content-Type: application/json
X-LB-Timestamp: 1718000000
X-LB-Signature: sha256=<hex hmac>
X-LB-Idempotency-Key: <uuid> # optional, dedup window
```
Body:
```jsonc
{
"session_id": "ticket-10293", // REQUIRED. Caller-defined. Maps 1:1 to a LangBot session.
"session_type": "person", // optional, "person" | "group"; default from config
"sender": { // optional metadata, surfaced to pipeline/plugins
"id": "user-5567",
"name": "Alice"
},
"message": [ // REQUIRED. A LangBot MessageChain (list of segments).
{ "type": "Plain", "text": "Export keeps failing on the dashboard." },
{ "type": "Image", "url": "https://.../screenshot.png" }
]
}
```
Response (LangBot does **not** block on the pipeline):
```jsonc
// 202 Accepted
{
"code": 0,
"msg": "accepted",
"data": {
"session_id": "ticket-10293",
"accepted_message_id": "in_01H....", // server-assigned id for this inbound message
"aggregating": true // true if buffered by the aggregator
}
}
```
**N→1 in practice.** Fire three POSTs with the same `session_id` inside the
aggregation window → the pipeline runs **once** with the three messages merged.
No special flag needed; this is the aggregator's default behaviour when enabled
on the pipeline.
### 6.2 Outbound — LangBot delivers replies to your callback
For each `reply_message` / `reply_message_chunk` the pipeline emits, LangBot
POSTs to `callback_url`:
```
POST {callback_url}
Content-Type: application/json
X-LB-Timestamp: 1718000001
X-LB-Signature: sha256=<hex hmac over body>
```
Body:
```jsonc
{
"session_id": "ticket-10293", // echoes the inbound session
"reply_to": "in_01H....", // the inbound message id this answers
"sequence": 1, // 1-based ordinal within this turn (for 1→M ordering)
"is_final": false, // false for intermediate/streamed parts
"stream": false, // true when this is a streamed chunk
"message": [
{ "type": "Plain", "text": "Looking into it — checking your export logs…" }
],
"timestamp": "2026-06-22T09:00:01Z"
}
```
**1→M in practice.** A turn that fires a function call then a final answer
produces e.g.:
```
POST callback → { sequence: 1, is_final: false, message: ["Checking logs…"] }
POST callback → { sequence: 2, is_final: false, message: ["Found 2 failed exports."] }
POST callback → { sequence: 3, is_final: true, message: ["Fixed. Try again now."] }
```
The caller stitches by `session_id` + `sequence`, and knows the turn is complete
when `is_final: true` arrives.
Your callback endpoint should return `200` quickly. A non-2xx triggers retry
with backoff (`callback_max_retries`).
### 6.3 Error envelope (inbound)
Consistent, machine-readable; never leak internals:
```jsonc
{ "code": 40101, "msg": "invalid signature", "data": null }
```
| HTTP | code | meaning |
|---|---|---|
| 202 | 0 | accepted |
| 400 | 40001 | malformed body / missing `session_id` or `message` |
| 401 | 40101 | bad/expired signature |
| 403 | 40301 | bot disabled |
| 404 | 40401 | bot_uuid not found / not an `http_bot` adapter |
| 409 | 40901 | duplicate idempotency key (already accepted) |
| 413 | 41301 | message too large |
| 500 | 50001 | internal error |
---
## 7. Signing scheme (both directions)
Symmetric, dependency-free HMAC-SHA256 — trivial to implement in any language.
```
signing_string = "{timestamp}.{raw_request_body}"
signature = "sha256=" + hex(HMAC_SHA256(secret, signing_string))
```
Verification rules:
- Reject if `|now - timestamp| > 300s` (replay window).
- Constant-time compare (`hmac.compare_digest`).
- Inbound verified with `inbound_secret`; outbound signed with
`outbound_secret` (falls back to `inbound_secret`).
- `signature_required: false` bypasses verification **and logs a warning**
intended only for local development behind a trusted network.
Reference (Python, ~6 lines):
```python
import hmac, hashlib, time
def sign(secret: str, body: bytes, ts: int | None = None) -> tuple[str, str]:
ts = ts or int(time.time())
mac = hmac.new(secret.encode(), f"{ts}.".encode() + body, hashlib.sha256)
return str(ts), "sha256=" + mac.hexdigest()
```
---
## 8. Delivery semantics & reliability
- **Inbound**: `202 Accepted` means *queued*, not *processed*. Use
`X-LB-Idempotency-Key` to make client retries safe (dedup window, e.g. 10 min).
- **Outbound**: **at-least-once**, best-effort. Retries on timeout/5xx with
exponential backoff up to `callback_max_retries`. Callbacks for one
`session_id` are delivered **in `sequence` order** (serialised per session);
across sessions they may interleave.
- **No persistence in v1**: if LangBot restarts mid-turn, in-flight callbacks
may be lost. Durable replay is deferred (see §13). Callers needing exactly-once
should dedup on `(session_id, reply_to, sequence)`.
- **Backpressure**: the adapter must not block the pipeline on slow callbacks —
outbound POSTs run on a per-session ordered queue with the configured timeout.
---
## 9. Optional: synchronous convenience mode (v1.1, behind a flag)
Some simple callers genuinely want "POST a message, get the reply in the HTTP
response" and don't care about streaming/multi-part. We can offer an **opt-in**
sync endpoint that internally waits for `is_final` and **collapses** all 1→M
parts into one array:
```
POST /bots/{bot_uuid}/sync → 200 { session_id, message: [ ...all parts concatenated... ] }
```
Implemented by attaching a per-request future that resolves on the final reply,
with a hard timeout. This is a **convenience wrapper** over the same machinery,
explicitly documented as lossy for streaming/ordering. Not in v1 core.
---
## 10. Adapter implementation sketch (`platform/sources/http_bot.py`)
Implements `AbstractMessagePlatformAdapter`. Key methods:
```python
class HttpBotAdapter(AbstractMessagePlatformAdapter):
listeners: dict = pydantic.Field(default_factory=dict, exclude=True)
# --- inbound -------------------------------------------------------
async def handle_unified_webhook(self, bot_uuid, path, request):
body = await request.get_body()
if self.config.get("signature_required", True):
if not self._verify(request, body):
return jsonify({"code": 40101, "msg": "invalid signature"}), 401
data = json.loads(body)
session_id = data["session_id"] # caller-defined identity
session_type = data.get("session_type", self.config.get("default_session_type", "person"))
chain = MessageChain.model_validate(data["message"])
event = self._build_event(session_type, session_id, data.get("sender"), chain)
# remember where to send replies for this session
self._callback_for[session_id] = data.get("callback_url") or self.config.get("callback_url")
# fire the registered listener → botmgr → msg_aggregator (N→1) → pipeline
if type(event) in self.listeners:
asyncio.create_task(self.listeners[type(event)](event, self))
return jsonify({"code": 0, "msg": "accepted",
"data": {"session_id": session_id, "accepted_message_id": event.message_id}}), 202
# --- outbound (called 1..M times per turn by the pipeline) ---------
async def reply_message(self, message_source, message, quote_origin=False):
return await self._post_callback(message_source, message, is_final=True, stream=False)
async def reply_message_chunk(self, message_source, bot_message, message,
quote_origin=False, is_final=False):
return await self._post_callback(message_source, message, is_final=is_final, stream=True)
async def is_stream_output_supported(self) -> bool:
return True
def register_listener(self, event_type, func): self.listeners[event_type] = func
def unregister_listener(self, event_type, func): self.listeners.pop(event_type, None)
async def run_async(self): pass # nothing to poll; purely webhook-driven
async def kill(self): pass
```
`_post_callback` resolves the session's callback URL, assigns the next
`sequence`, signs the body, and enqueues an ordered, retrying POST.
Session→callback mapping is kept in a small in-memory dict keyed by
`session_id` (acceptable for v1; a turn's callback URL is captured at inbound
time so replies always have a destination even if config later changes).
---
## 11. Security considerations
- **Inbound route is `AuthType.NONE`** at the framework level (same as all
webhook adapters) — the adapter **must** enforce HMAC itself. Default
`signature_required: true`.
- **Timestamp window** (±300s) + idempotency key blunt replay.
- **SSRF on callback_url**: validate scheme (`https` in prod), and consider an
allow-list / block of private CIDRs since LangBot initiates the POST. Document
this; enforce in code where feasible.
- **Secret storage**: secrets live in the bot's `adapter_config` like every
other adapter credential; surfaced as `type: string`/secret in the dashboard.
- **One secret per bot** in v1. Per-caller key rotation / multiple keys is a
future enhancement (§13).
---
## 12. Developer Experience (explicit deliverables)
The whole point of a standalone adapter is that **integrating is pleasant**. v1
ships:
1. **`docs/platforms/http-bot.md`** — task-oriented integration guide:
create the bot → copy inbound URL → set secret → stand up a callback
endpoint → send first message → handle 1→M.
2. **Copy-paste curl** for the first message (with a working signing one-liner).
3. **Reference clients** (≤50 LOC each) in `examples/http-bot/`:
`client.py` (push + a Flask/Quart callback receiver) and `client.ts`.
4. **OpenAPI fragment** `docs/http-bot-openapi.json` describing inbound +
callback shapes, so integrators can codegen.
5. **Local echo recipe**: a one-command callback server that prints every
reply, so a developer sees N→1 and 1→M working in under five minutes.
6. **Postman/Hoppscotch collection** (nice-to-have).
DX acceptance check: *a developer who has never seen LangBot can, from the docs
alone, push a message and observe a multi-part reply on their callback within
10 minutes.*
### Quickstart (curl)
```bash
BOT=https://your-langbot/bots/2f1c....
SECRET=supersecret
BODY='{"session_id":"ticket-10293","message":[{"type":"Plain","text":"hello"}]}'
TS=$(date +%s)
SIG="sha256=$(printf '%s.%s' "$TS" "$BODY" | openssl dgst -sha256 -hmac "$SECRET" -r | cut -d' ' -f1)"
curl -sS -X POST "$BOT" \
-H "Content-Type: application/json" \
-H "X-LB-Timestamp: $TS" \
-H "X-LB-Signature: $SIG" \
-d "$BODY"
```
---
## 13. Future work
- **Durable outbound queue** (persist + replay across restarts; exactly-once).
- **Per-caller API keys** with rotation and scopes (multi-tenant Space usage).
- **Sync convenience endpoint** (§9) once core is stable.
- **Server-Sent Events outbound option** for callers that *do* want a stream but
not a full duplex socket — single GET, server pushes chunks.
- **Dashboard "test console"** for `http_bot` (send a message, watch callbacks)
mirroring the existing WebSocket debug panel.
---
## 14. Rollout / task breakdown
| # | Task | Touches |
|---|---|---|
| 1 | `http_bot.yaml` manifest + icon | `platform/sources/` |
| 2 | `HttpBotAdapter` (inbound verify, event build, outbound queue) | `platform/sources/http_bot.py` |
| 3 | Signing helper module (shared) | `platform/sources/` or `utils/` |
| 4 | i18n strings (en/zh/ja) | adapter yaml + web locale |
| 5 | Integration docs `docs/platforms/http-bot.md` | `docs/` |
| 6 | OpenAPI fragment + reference clients | `docs/`, `examples/http-bot/` |
| 7 | Tests: signature verify, N→1 aggregation, 1→M ordering, retry | `tests/` |
| 8 | (opt) SSRF guard for callback_url | adapter |
No changes required to: the unified webhook router, the aggregator, the query
pool, or the pipeline. That is the design's main payoff.
---
## 15. Resolved decisions
1. **Callback URL trust****config-only.** The inbound message may not carry a
`callback_url`; replies always go to the bot-config URL. Closes the SSRF
vector where a leaked inbound secret could redirect replies.
2. **Session lifecycle****`POST /bots/<uuid>/reset`** (body `{session_id,
session_type?}`) drops the matching session from the session manager; the
next message starts a fresh conversation. Implemented via sub-path routing in
`handle_unified_webhook`.
3. **Group semantics** — for `session_type: group`, `session_id` is the group/
launcher id; `sender.id` (and optional `sender.group_name`) identify the
member. A Space ticket maps to one `session_id`.
4. **Backpressure** — bounded per-session outbound queue (maxlen 1000); on
overflow the oldest reply is dropped and a warning logged, so a persistently
down callback can never exhaust memory.
### Still open / deferred (see §13)
- Durable outbound queue (persist + replay across restarts).
- Per-caller API keys with rotation/scopes for multi-tenant Space usage.
- SSE outbound option and a dashboard test console.
@@ -0,0 +1,149 @@
# Agent-owned Context 协议设计
本文档描述插件化 AgentRunner 场景下的上下文边界**设计理由**。结论先行:LangBot 不应成为最终 agentic context manager;它提供 context substrateAgentRunner 或其背后的 runtime 自己决定如何管理历史、压缩、召回和 KV cache。
> 涉及的数据结构(`AgentRunContext`、`ContextAccess`、`AgentRunAPIProxy` 等)唯一定义在 [PROTOCOL_V1.md](./PROTOCOL_V1.md)。本文只讲语义和约束,不重抄 schema。
## 1. 设计原则
### 1.1 Agent 拥有上下文策略
不同 runner 背后的 runtime 差异很大:
- 官方 local-agent 可能依赖 LangBot 的模型、工具、知识库和存储。
- Claude Code SDK / Codex 类 runtime 有自己的 session、transcript、tool loop 和上下文压缩。
- Pi Agent SDK 或外部 agent 平台可能只需要当前事件和一个外部 conversation key。
因此 LangBot 不应强行决定最终传给模型的历史窗口。Host 只提供:当前事件的完整结构化信息、稳定身份和会话引用、可授权读取的 history / event / state API、sandbox/workspace 文件能力、可投影给外部 harness 的 scoped context / SDK-owned MCP bridge / resource handles、payload hard cap 和权限 guardrail。
### 1.2 Host 不定义通用历史窗口
历史窗口策略不是 AgentRunner 协议或 Query entry adapter 的核心概念。Host 只提供 history pull API、cursor、hard cap 和权限边界;runner 自己决定是否读取、读取多少、如何截断和压缩。
正确的问题不是"LangBot 每轮裁几轮历史给 agent",而是:
- 这类 runner 是否自管 context
- 事件到来时 host 应 inline 哪些最小信息?
- agent 需要更多上下文时通过什么 API 拉取?
- host 如何保证安全、可审计和可分页?
### 1.3 Host 保存事实源,Agent 管理 working context
三类数据要分开:
- `EventLog`: Host 保存原始事件、工具调用、投递结果、错误和系统事件。
- `Transcript`: Host 从 EventLog 投影出的对话视图,用于 UI、审计和按需历史读取。
- `Working context`: Agent 本轮实际送进模型或 runtime 的上下文,由 AgentRunner 决定。
LangBot 不提供 host-side inline history window。简单 runner 如果需要历史窗口,应在 runner 内部通过 Host history API 拉取并裁剪。
## 2. Event 到来时传什么
默认 `AgentRunContext`PROTOCOL_V1 §5.2)应尽量小且稳定。默认规则:
- Host MUST NOT inline full history by default.
- Host SHOULD inline only current event / input and context handles.
- Runner owns working-context assembly.
- Runner MAY use Host history / event / state / storage API and sandbox/workspace file tools when authorized.
- Official runners MUST consume Host infrastructure through the same public API as third-party runners.
### 2.1 必须 inline 的内容
当前 event 的类型/id/时间/source;当前输入文本和结构化内容;附件/文件/图片的 metadata、path 或 URLactor / subject / conversation / thread / bot / workspacedelivery 能力;已授权资源列表;context cursors 和可用 API 能力;Agent/runner config。这些是 agent 决定下一步所需的最低信息。
### 2.2 默认不 inline 的内容
完整历史消息、大文件全文、大工具结果、全量知识库内容、平台原始 payload 大对象、每轮重新生成的大段 summary。这些会破坏跨进程序列化成本、泄露范围、KV cache 稳定性,也会迫使 host 替 agent 做 context 策略。
### 2.3 不提供 Host Inline History Window
`AgentRunContext` 不包含 `bootstrap` 字段。Host 不下发历史窗口,也不通过 Pipeline 配置决定窗口大小。runner 若需要类似 `recent_tail` 的策略,应在自己的 manifest/config schema 中声明参数,并在 runner 内部通过 history API 读取、裁剪和压缩。Host 只负责权限、分页、hard cap 和事实源。
## 3. ContextAccess 的作用
`ContextAccess`PROTOCOL_V1 §5.8)是 host 交给 agent 的上下文读取入口描述,告诉 agent:当前事件位于哪条 conversation / thread、若需要更多历史从哪个 cursor 开始拉、host inline 了什么没 inline 什么、当前 run 有哪些 context API 权限。
## 4. Agent 如何获取更多上下文
所有 API 都走 `AgentRunAPIProxy`PROTOCOL_V1 §8),由 host 用 `run_id` 校验。
外部 harness 不能直接访问 LangBot 资源。无论是 history、event、state、model、tool、knowledge base,还是 LangBot skills,都必须通过 SDK runtime 转发到 Host API,并由 Host 按 active `run_id`、runner identity、binding resource policy 和 caller plugin identity 校验。当前运行文件进入授权 sandbox/workspace 后,再由 runner 用 read/write/exec 类工具按需访问。harness 自己的 native tools 只属于 harness 执行环境,不能绕过 SDK runtime 访问 LangBot 内部资源。
### 4.1 History
```python
await api.history_page(conversation_id=ctx.context.conversation_id,
before_cursor=ctx.context.latest_cursor,
limit=50, direction="backward", include_attachments=False)
```
返回 `HistoryPage`schema 见 PROTOCOL_V1 §8)。
约束:`limit` 有 host hard cap;默认只能读当前 conversation / thread;跨会话读取需 binding policy / run authorization snapshot 授权;可返回 attachment ref,不默认返回大文件内容。
### 4.2 Search
```python
await api.history_search(query="用户之前提到的数据库连接信息",
filters={"conversation_id": ..., "event_types": ["message.received"]},
top_k=10)
```
Search 可先用数据库全文索引,后续接 embedding recall。它是 host 检索能力,不等于 agent 的长期记忆策略。
### 4.3 Event / State
- Event API`events.get` / `events.page`)用于读取非消息事件、工具事件、系统事件。Agent 不应把所有事件都当成 user/assistant message。
- State API`state.get` / `set`)是可选寄宿能力。自管 runtime 可以完全不用;依附 LangBot 的官方 runner 可以使用,例如 `external.session_id``summary.checkpoint`
### 4.4 大文件与工具协作
大文件、多模态输入和工具产物不要内联进 prompt 或 tool resultmessage/content 里只放小文本和必要摘要;当前事件附件由 Host staged 到授权 sandbox/workspace,并在 input attachment 中给出轻量 metadata/path。工具之间传递大结果时传 sandbox path 或 attachment ref,不传完整 blob。Host 只保证当前 run 授权范围,默认不允许插件直接读任意本地路径;临时文件由 sandbox 生命周期和清理机制管理。
### 4.5 External harness context projection
外部 harness 的总体边界以 [HOST_SDK_INFRASTRUCTURE.md](./HOST_SDK_INFRASTRUCTURE.md) §4.8 为准。本节只描述 context projection 的推荐形态。
Claude Code、Codex、Kimi Code 这类 runtime 通常已有自己的 session、工具 loop、MCP 加载、上下文压缩和工作目录。LangBot 不应把它们改造成"host prompt assembler",而应提供可审计的事件和资源投影。推荐 projection 形态:
- `agent-context.json`:结构化 JSON,包含 `run_id``event``actor``subject``input``delivery``resources``context``state``runtime`
- `LANGBOT_CONTEXT.md`:人类可读摘要。
- `resources`:只包含本次 run 授权后的资源句柄和能力摘要,不暴露 Host 内部私有对象、secret 或资源内容。
- `skills`LangBot skills 不是直接投影给 harness native tool loop 的文件能力,而是**一组被授权的 tool**。发现走 `list_skills`(或 `langbot_list_assets` 增加 skills 一类),激活/注册走 `activate` / `register_skill`,包内操作走 native exec/read/write,统一通过 `ctx.resources.tools``AgentRunAPIProxy` 或 SDK-owned MCP bridge 暴露。Host 不向 prompt 注入 skill 索引(无 progressive-disclosure 注入);harness 通过调用发现工具主动查询 skill 清单。`agent-context.json``skills` 字段仅作发现工具的数据来源与可选 `suggested_skill_prompt` 的输入。
- `MCP config`:只投影 per-run、scoped 的 SDK-owned bridge 或外部 MCP 连接配置;LangBot 资源访问必须回到 SDK runtime / Host API,不允许 harness 通过自带 MCP/native tool 直接读 Host 内部资源。
- `state pointers`:外部 session id、working directory、checkpoint 等小型 JSON 状态通过 Host state API 保存。
当前官方外部 harness 路径由 ACP / Claude Code / Codex 等 runner 插件承担(现状见 OFFICIAL_RUNNER_PLUGINS §7)。这类 projection 是"把 LangBot 事实源和授权资源句柄交给 harness",不是"把 LangBot 资源本体或内部权限交给 harness",也不是"由 LangBot 决定最终模型上下文"。
## 5. Runner 上下文边界
Host 只给当前事件、当前输入和 context handles。Runner 是否能拉取历史、事件、state 或 storage、是否能访问 sandbox/workspace 文件,以运行时 `ctx.context.available_apis` 和工具授权为准;runner 自己决定是否拉取历史、是否搜索、何时摘要、如何构造最终 prompt。
## 6. KV cache 友好的上下文管理
支持 Claude Code SDK、Codex、Pi Agent SDK 等 runtime 时,必须避免每轮由 LangBot 重组大块 prompt
- 稳定 session key`workspace/bot/binding/runner/conversation/thread`
- 每轮只传 delta:当前 event、attachment refs/path、少量 runtime metadata。
- 历史 append-only:不要每轮改写同一段 history 文本。
- Summary checkpoint 稳定:只有压缩发生时产生新 checkpoint。
- 大文件和工具结果写入 sandbox/workspace。
- Tool/context API schema 稳定,数据通过 API 拉取而非塞入 prompt。
- 对自管 runtime,优先让它复用自身 session/cache,而不是强制 LangBot 每轮重放 transcript。
- 模型窗口元信息应作为 resource/runtime metadata 暴露给 runner,由 runner 决定预算和压缩策略。
稳定 session key 的用途是隔离外部 runtime 的 resume/cache/state,不是改变 PROTOCOL_V1 §13 定义的 Agent 复用和 dispatch 边界。只有当某个外部 harness 的同一 native session 不支持并发 turn 时,runner 或 future runtime control plane 才应按 external session key 做 turn-level 串行化。
对长期运行的 external harness / daemon,推荐运行形态是 reader 与 writer 分离:一个 session reader 独占读取 stdout/SSE/native event stream,并把 native event 转成 `AgentRunResult` 或 task progress;用户输入只作为 turn write 进入该 session。当前一次性 CLI subprocess runner 可以继续在单次 `run(ctx)` 内同步收集 stdout,但后续改成长连接时不应让多个 request 同时读取同一 native stream。
## 7. Host guardrail
Agent 自管 context 不代表无限制访问。LangBot 仍必须控制:每次 run 的 active `run_id`、runner identity、当前 binding 的 resource policy、conversation / actor / subject scope、page size / sandbox file read size / API rate limit、跨会话读取权限、数据脱敏和敏感变量过滤、审计日志。Host 不负责"最佳上下文策略",但负责"不越权、不爆内存、不不可审计"。
外部 harness 的 native tools、shell、MCP 或 skill 机制不构成 LangBot 资源授权边界。只要访问的是 LangBot 持有的资源,就必须经 SDK runtime 转发并接受 Host 校验;完整边界见 HOST_SDK §4.8。
## 8. 官方 runner 与业务编排边界
官方 runner 插件可以把状态寄宿在 LangBot,但必须和第三方 runner 一样通过公开 Host API 消费。LangBot core 不内置官方 agent 的业务流程(prompt 组装、tool loop、RAG 编排、summary/compaction、"local-agent 专用"状态字段)。
官方 local-agent 应作为"依附 LangBot 基础设施的复杂 runner 参考实现"transcript/history 通过 `api.history_page()` / `api.history_search()` 读取,summary/checkpoint/外部 session id/用户偏好通过 `api.state_get()` / `api.state_set()` 或 storage 方法保存,图片/文件/工具大结果通过 sandbox/workspace read/write 工具访问,模型/工具/知识库通过 `api.invoke_llm()` / `api.call_tool()` / `api.retrieve_knowledge()` 调用。这样 LangBot 保持为通用 agent host,不变成内置 agent 框架。具体迁移要求见 [OFFICIAL_RUNNER_PLUGINS.md](./OFFICIAL_RUNNER_PLUGINS.md)。
@@ -0,0 +1,227 @@
# Agent Runner QA 指南
本文档是 agent-runner 插件化下一轮测试的唯一 QA 入口。它合并并取代旧的 Phase 1 验收矩阵与 2026-05-18 / 2026-05-29 两份本地 QA 报告。
目标不是保留完整历史流水账,而是指导测试 agent 用最小但高价值的路径判断当前分支是否仍然健康。
## 1. 测试边界
当前主线验证的是 AgentRunner Protocol v1
```text
event -> binding -> runner.run(ctx) -> result stream
```
本指南验证:
- Host 能通过当前 Query entry adapter 进入 event-first `run(event, binding)` 主链路。
- Runner 来自插件 registry,而不是旧内置 runner 分支。
- `local-agent` 能消费 Host 模型、工具、知识库、history、state、sandbox 文件等基础设施。
- 外部 harness runnerACP / Claude Code / Codex 等直接 runner 插件)能消费 event-first context,并把外部 session 指针写回 host-owned state。
- 错误、权限裁剪、无输出、timeout 等路径不会破坏主聊天流程。
本指南不验证:
- Runtime Control Plane v2。
- EventGateway / EventRouter 完整落地由外部 EBA 分支联调;本指南只验证本分支 Host 底座。
- 发布级 path isolation、secret filtering、MCP allowlist、资源配额和 workspace cleanup。
- 所有外部服务 runner 的真实凭据联调。
这些属于后续能力或发布门槛,分别见 [RUNTIME_CONTROL_PLANE_V2.md](./RUNTIME_CONTROL_PLANE_V2.md) 与 [SECURITY_HARDENING.md](./SECURITY_HARDENING.md)。
## 2. 状态定义
测试报告只使用以下状态:
| 状态 | 含义 |
| --- | --- |
| PASS | 按步骤执行,用户可见行为和日志证据都满足通过条件。 |
| FAIL | 环境可用,但行为不满足通过条件。 |
| BLOCKED | 凭据、CLI、外部服务、测试数据或本地配置缺失导致无法执行。必须写清阻塞原因。 |
| N/A | 当前 runner 或平台明确不支持该能力。必须引用 manifest、文档或配置说明。 |
不能使用“看起来正常”“大概通过”“基本没问题”等模糊状态。
## 3. 执行顺序
推荐按以下顺序执行,前一层失败时不要继续扩大测试面:
1. Host / SDK / runner 单测。
2. WebUI 登录与 Pipeline Debug Chat 基础 smoke。
3. `local-agent` 高价值场景。
4. 外部 code-agent harness smoke。
5. 权限和错误路径补充检查。
6. 汇总 PASS / FAIL / BLOCKED,并给出下一步建议。
用户可见流程必须通过 WebUI 或真实消息平台验证。API / curl 只能作为诊断证据,不能单独让 UI case PASS。
## 4. 必跑基线
### 4.1 单测基线
在 LangBot 仓库运行:
```bash
uv run --frozen pytest tests/unit_tests/agent
```
如果本次改动只触及默认配置或 API service,也至少补跑相关目标测试,例如:
```bash
uv run pytest tests/unit_tests/api/test_pipeline_service_defaults.py
```
通过条件:
- agent 单测全 PASS,或失败项已确认与本次 agent-runner 路径无关。
- 若失败来自 `context_builder``orchestrator``session_registry``resource_builder``plugin/handler.py` 的 run action 权限路径,不应进入 UI smoke。
### 4.2 环境基线
`langbot-skills` 做环境检查:
```bash
cd "$LANGBOT_SKILLS_REPO"
bin/lbs env doctor
bin/lbs case list
```
`LANGBOT_SKILLS_REPO` 指向当前工作区里的 `langbot-skills` 仓库。优先使用已有 case,而不是临时发明测试路径。
推荐首批 case
- `webui-login-state`
- `pipeline-debug-chat`
- `local-agent-basic-debug-chat`
- `local-agent-rag-debug-chat`(改动涉及 RAG / knowledge
- `local-agent-plugin-tool-call-debug-chat`(改动涉及 tool / resource policy
## 5. WebUI 主链路 Smoke
### 5.1 Runner registry
步骤:
1. 打开 WebUI Pipeline 配置页。
2. 查看 AI runner 下拉列表。
3. 选择 `plugin:langbot/local-agent/default`
4. 保存并刷新页面。
通过条件:
- runner 选项来自插件 registry。
- 保存后配置仍为 `ai.runner.id` + `ai.runner_config[id]`
- `runner_config` 表示 Agent/runner config,不表示插件实例状态。
- 不读取或回写旧 `ai.runner.runner` 字段。
- 不出现旧内置 runner stage 名(例如裸 `local-agent`)作为当前选中项或配置 surface。
- 插件没有循环重启或 metadata 加载失败。
### 5.2 主聊天路径
步骤:
1. 使用绑定 `plugin:langbot/local-agent/default` 的 Pipeline。
2. 在 Debug Chat 发送确定性普通文本。
3. 查看 WebUI 回复和后端日志。
通过条件:
- 用户可见回复正常。
- 后端日志显示走 `AgentRunOrchestrator` / `RUN_AGENT`
- 不走旧内置 local-agent 主执行分支。
- conversation transcript 写入用户消息和助手消息。
## 6. `local-agent` 高价值测试
只保留最能覆盖架构边界的场景。
| ID | 场景 | 操作 | 通过条件 |
| --- | --- | --- | --- |
| LA-01 | 绑定 prompt | 配置 system prompt 后发送文本。 | runner 使用 `ctx.config.prompt`,不读取 `ctx.adapter.extra["prompt"]`;回复体现绑定 prompt。 |
| LA-02 | history API | 连续两轮对话,第二轮引用第一轮 marker。 | runner 通过 Host history API 或自管上下文读取历史,不依赖 inline history window。 |
| LA-03 | 流式 / 非流式 | 分别用支持流式和关闭流式的路径发送文本。 | 流式 UI 不重复、不空白;非流式只输出最终消息。 |
| LA-04 | 工具调用 | 绑定测试工具,发送会触发工具的 prompt。 | `ctx.resources.tools` 只包含授权工具;工具调用 started/completed;最终回复包含工具结果。 |
| LA-05 | RAG | 绑定测试知识库,发送命中文档的 prompt。 | `ctx.resources.knowledge_bases` 包含所选知识库;runner 通过授权 API 检索;回复使用检索内容。 |
| LA-06 | 多模态 | 发送图片输入。 | `ctx.input.contents` 保留图片;支持视觉模型时正常处理,不支持时受控失败。 |
| LA-07 | fallback / 错误 | 模拟 primary 模型失败或 runner 抛错。 | fallback 或 `run.failed` 行为受控;后续请求不受影响。 |
| LA-08 | 无输出保护 | 测试 runner 完成但不产出消息。 | 不产生空白成功回复;按受控失败或明确缺陷处理。 |
| LA-09 | steering / 运行中追加消息 | 使用支持 steering 的 runner,第一条消息触发长 runrun 未结束时在同 conversation 追加第二条消息。 | 第二条消息被 active run claim,不启动并发 runrunner 通过 `steering_pull` 看到追加输入;EventLog 有 `queued` -> `steering.injected`,若未消费则有 `steering.dropped` 终态;后续普通消息仍可处理。 |
Rerank、remove-think、文件输入等场景只在本次改动直接涉及时补测,不作为每轮必跑项。
## 7. Code-agent Harness Smoke
这些测试用于验证 ACP、Claude Code、Codex 这类自管 runtime 能走同一条 Host 协议路径。若目标 harness 没有 CLI/daemon、登录态、代理配置或远端 workspace,标记 BLOCKED,不要伪造 PASS。
Smoke 前应优先保留一层轻量单测或 fixture 测试:session 创建/复用、消息发送、结果解析、`run_id` 注入和 LangBot MCP gateway 必须有稳定测试覆盖。WebUI smoke 证明真实链路可用,但不能替代转换层和错误映射测试。
### 7.1 外部 harness runner
步骤:
1. 确认目标 harness(例如 ACP daemon、Claude Code 或 Codex)在对应机器上可执行且已登录。
2. 绑定目标 runner,例如 `plugin:langbot/acp-agent-runner/default``plugin:langbot/claude-code-agent/default``plugin:langbot/codex-agent/default`
3. 配置 runner 必要字段,例如 remote target、workspace、provider、startup timeout、reuse session 等。
4. 在 Debug Chat 执行一次确定性真实 smoke。
5. 检查 LangBot MCP gateway、`run_id` 回填和 host-owned state。
通过条件:
- WebUI 可见回复包含预期 sentinel。
- 发送给 harness 的消息包含当前 LangBot `run_id` 和可访问资源摘要。
- Harness 通过 gateway 调用 `langbot_history_page``langbot_retrieve_knowledge``langbot_call_tool` 时必须携带正确 `run_id`;错误 run id 被拒绝。
- `external.session_id` 写入 host-owned state。
- 外部 harness 错误、timeout、empty output 都转成受控 `run.failed`
- resume 到同一 external session 时,全局锁边界符合 PROTOCOL_V1 §13。
### 7.2 API 型外部 runner
Dify、n8n、Coze、DashScope、Langflow、Tbox 等外部服务 runner 不作为每轮必跑项。只有在本次改动触及对应 runner 或凭据已经可用时执行 smoke。
通过条件:
- runner 可选,配置可保存。
- 请求成功,或外部服务错误被清晰返回。
- 外部服务凭据缺失时标记 BLOCKED,并记录缺失项。
## 8. 权限与隔离补充
以下优先用单测 / targeted fixture 覆盖,不要求每次通过 UI 人工构造恶意 runner。
| 场景 | 推荐证据 |
| --- | --- |
| 未授权模型调用被拒绝 | `plugin/handler.py` run action 权限测试或目标单测。 |
| 未授权工具调用被拒绝 | `ctx.resources.tools` 与 host action 拒绝日志。 |
| 未授权知识库检索被拒绝 | `ctx.resources.knowledge_bases` 与 host action 拒绝日志。 |
| run_id 结束后复用被拒绝 | session registry 注销测试。 |
| 插件身份不匹配被拒绝 | `caller_plugin_identity` mismatch 测试。 |
| 绑定插件身份的 run_id 省略 caller identity 被拒绝 | `_validate_run_authorization(..., caller_plugin_identity=None)` 返回错误。 |
| 未注册 Runtime 连接伪造插件身份被剥离 | SDK runtime forwarding 测试:请求自带 `caller_plugin_identity` 时,未注册连接转发前必须 `pop`,已注册连接必须覆盖为真实插件身份。 |
| storage/state scope 越权被拒绝 | state/storage proxy 单测。 |
| steering claim 异常不杀 consumer loop | controller 单测:无效 runner / registry 异常只让当前消息回到普通 session 槽位路径,消息消费循环继续。 |
| steering queue 未消费有终态 | session registry / orchestrator 单测:队列有上限;run unregister 时未 pull 项写 `steering.dropped` 审计。 |
如果这些单测失败,不能用 WebUI 正常回复替代。
## 9. 证据要求
每轮测试报告至少记录:
- LangBot commit、SDK commit、相关 runner 插件 commit。
- Pipeline UUID/name、runner id、关键 runner config 摘要。
- WebUI 截图或 Playwright 操作记录。
- 后端日志中对应 query id / run id 的关键行。
- `langbot-skills` case/report 路径。
- 外部 harness runner 的 context 文件、session id、working directory、CLI 错误摘要。
- FAIL/BLOCKED 的复现步骤和归属仓库建议。
报告结论必须回答:
- 是否建议继续进入下一阶段测试。
- 是否存在主聊天路径阻塞。
- 是否只是凭据 / 外部服务 / 本机 CLI 缺失导致 BLOCKED。
- 是否需要进入 [SECURITY_HARDENING.md](./SECURITY_HARDENING.md) 的发布级验收。
## 10. 历史高价值记录
历史高价值记录与当前 runner 验收状态见 [STATUS.md](./STATUS.md)。本指南只保留可重复执行的测试步骤和证据要求。
@@ -0,0 +1,92 @@
# Event Based Agent 接入设计
> 本文记录 EBA 如何接入当前 AgentRunner Protocol v1 / Host 底座。EventGateway、EventRouter、Event subscription/notification 由外部 EBA 分支实现并联调;本分支只保留 event-first 入口和 envelope/binding models。
>
> 数据结构唯一定义在 [PROTOCOL_V1.md](./PROTOCOL_V1.md)runner 可见)与 [HOST_SDK_INFRASTRUCTURE.md](./HOST_SDK_INFRASTRUCTURE.md)Host 内部模型);本文只讲 EBA 语义,不重抄 schema。
> 与当前 runner 外化分支、后续 Agent Platform / Runtime Control Plane 的边界见 [EXTENSION_SCOPE_MATRIX.md](./EXTENSION_SCOPE_MATRIX.md)。
本文描述 EBA 接入时,事件如何进入 LangBot、如何触发 AgentRunner,以及如何复用插件化 agent 基础设施。本分支不实现完整 EventBus / EventRouter / Platform API;这些能力正在外部 EBA 分支联调。这里的目标是把协议边界说清楚,避免当前消息入口继续绑死 Pipeline 和用户文本消息。
## 1. 设计目标
- 消息、撤回、入群、好友申请、定时任务、API 调用都能抽象为 host event。
- EventRouter 可以根据 event type、bot、workspace、conversation、actor、subject 解析 `AgentBinding`
- AgentRunner 通过同一套 orchestrator 被调用。
- 非消息事件不伪造成用户文本消息。
- 平台动作执行通过显式 capability / permission / result type 预留,不混入普通文本回复。
## 2. 事件不是消息
`message.received` 只是事件的一种。协议不应假设:一定有用户文本、一定有 conversation history、一定要返回一条聊天消息、actor 一定等于 sender、subject 一定等于当前消息。
| event_type | actor | subject | input |
| --- | --- | --- | --- |
| `message.received` | 发消息的人 | 当前消息 | 文本、图片、文件等 |
| `message.recalled` | 撤回操作者,未知时为系统 | 被撤回消息 | 通常为空 |
| `group.member_joined` | 新成员或邀请人 | 群/成员关系 | 通常为空 |
| `friend.request_received` | 申请人 | 好友申请 | 验证消息或申请理由 |
| `schedule.triggered` | 系统 | 定时任务 | 任务 payload |
| `api.invoked` | API caller | API request | request payload |
## 3. 稳定事件名
先保留的稳定事件名(作为插件协议的一部分保持稳定):
- `message.received`
- `message.recalled`
- `group.member_joined`
- `friend.request_received`
平台原始事件名只能进入 `ctx.event.source_event_type` / `raw_ref`,不能成为 `ctx.event.event_type` 的公共契约。
## 4. Event Envelope 与 Binding
- 入口事件用 `AgentEventEnvelope`HOST_SDK §4.1)承载;顶层字段使用 LangBot 稳定协议名,平台原始事件名和原始 payload 放 `metadata` / `raw_ref`
- 触发关系用 `AgentBinding`HOST_SDK §4.2)表达。EBA 阶段 binding 通过 `event_types``scope``filters` 决定哪些事件触发当前 bot / channel 绑定的 Agent。
EBA dispatch 基数、Agent 复用和 fan-out 边界以 PROTOCOL_V1 §13 为准;本节只说明外部 EBA 分支的 EventRouter 如何产出当前 v1 主线需要的 binding。
Binding scope 示例:workspace 全局、bot 级、platform channel 级、conversation / group / thread 级、user / actor 级。旧 Pipeline 可迁移为 `message.received` 的临时 binding source,但目标持久配置应是 Agent,不是 Pipeline。
Event Source 可包括:`platform_adapter`(飞书、QQ、微信、Telegram 等)、`webui``http_api``scheduler``system`。EventRouter 不应写死平台 adapter 的类名。
## 5. EventRouter 调用链
```text
Platform Adapter / WebUI / API
-> Event Gateway normalize payload
-> EventLog append raw event
-> EventRouter resolve one effective AgentBinding
-> AgentRunOrchestrator.run(event, binding)
-> AgentRunContextBuilder.build(event, binding)
-> PluginRuntimeConnector.run_agent()
-> AgentRunResult stream
-> DeliveryController render / platform action
```
约束:必须复用现有 orchestrator,不能为 EBA 单独实现另一套 plugin runner 调用协议;非消息事件不能绕过 resource authorizationdelivery 和 platform action 走统一权限模型;外部 harness runner 也通过同一套 envelope/binding/context/result 协议接入,不为 Claude Code / Codex / Kimi 单独发明队列协议。observer / fan-out / parallel arbitration 的额外语义仍按 PROTOCOL_V1 §13 处理。
## 6. 平台动作执行
EBA 后 `action.requested`PROTOCOL_V1 §7.3,当前仅 telemetry 不执行)将用于请求 host 执行平台动作:
```json
{ "type": "action.requested",
"data": { "action": "friend.request.accept",
"target": {"platform": "wechat", "request_id": "..."},
"payload": {"reason": "policy matched"} } }
```
Host 必须校验:binding / platform action policy 是否授权该 action、actor / bot / workspace 是否允许、是否需要人工审批,以及当前 run session / caller identity 是否匹配。EBA 还可能预留 `delivery.requested`(请求投递到某 surface)。
Delivery 方面,event 不一定回复到当前聊天窗口:消息事件通常带 reply target;系统事件可能没有默认 reply target,需要 runner 返回 `action.requested` 或由 binding 的 delivery policy 决定投递位置(`DeliveryContext` 见 PROTOCOL_V1 §5.7)。
## 7. 与 Context 协议的关系
EBA 事件进入 AgentRunner 时仍遵循 [AGENT_CONTEXT_PROTOCOL.md](./AGENT_CONTEXT_PROTOCOL.md)inline 当前事件、大 payload 用 raw/staged file ref、不默认 inline 完整 history、agent 按需通过 API 拉取、Host 保留 EventLog 和权限 guardrail。非消息事件可以被投影进 Transcript,但不能强制伪装为 user messageAgentRunner 根据 event type 自己决定是否纳入模型上下文。
## 8. EBA 分支联调内容
外部 EBA 分支负责联调 EventGateway 完整实现、EventRouter 与 BindingResolver 集成、`AgentBinding` 持久模型和 UI、`DeliveryContext` 完整实现、platform action permission model 和执行器、真实平台事件接入。
当前底座已完成:① 把当前 Pipeline 消息入口适配成 `message.received` event → ② 增加 `AgentBinding` 抽象,先由 current config 生成 → ③ context builder 改为从 event + binding 构造 → ④ 引入 EventLog / Transcript。外部 EBA 分支在此基础上联调:⑤ 非消息事件协议测试与真实事件来源 → ⑥ 真实 EventRouter、binding persistence / UI 和 platform action。
@@ -0,0 +1,51 @@
# AgentRunner 外化扩展边界矩阵
本文用于回答一个问题:本分支只做 AgentRunner 外化时,哪些能力已经作为扩展底座完成,哪些由外部 EBA / Agent Platform / Runtime Control Plane 分支接入,后续分支接入时应该走哪个扩展点。
结论:本分支不实现完整 Agent Platform,也不实现完整 EBA。EBA 完整事件网关与事件路由由外部 EBA 分支联调。本分支必须把 runner 外化的 Host / SDK 边界做干净,让外部分支只需要接入持久模型、事件路由或 runtime task,而不需要重写 `AgentRunner Protocol v1`
调度基数、Agent 复用、插件实例无状态、Pipeline adapter 和 fan-out 边界的单一事实源是 [PROTOCOL_V1.md](./PROTOCOL_V1.md) §13;本矩阵只说明后续能力应该接入哪个扩展点。
## 1. 分支边界
| 范围 | 本分支职责 | 不在本分支做 |
| --- | --- | --- |
| AgentRunner Protocol v1 | 定义 Host 调用 runner 的稳定合同:discovery、`AgentRunContext`、result stream、Host pull API、错误和权限边界。 | 不定义 Agent Platform 的产品数据库模型;不定义 runtime task queue。 |
| Host runner 外化底座 | 提供 `AgentEventEnvelope``AgentBinding` 运行投影、`run(event, binding)`、resource authorization、run-scoped session、EventLog / Transcript / State / sandbox 文件边界。 | 不实现 EventGateway、scheduler、integration provider、Agent 管控面 UI。 |
| 当前 Pipeline 入口 | 通过 `QueryEntryAdapter` 把旧 Query / Pipeline config 投影成 event + binding,作为迁移期入口。 | 不继续把 Pipeline 当作长期 agent 配置中心。 |
| 官方 runner 插件 | 作为协议消费者验证 local-agent / 外部 harness runner 能接入 Host 基础设施。 | 不让官方 runner 的内部实现反向决定 Host / SDK 协议形态。 |
## 2. 扩展矩阵
| 能力 | 当前分支状态 | 后续归属 | 后续接入方式 | 禁止事项 |
| --- | --- | --- | --- | --- |
| Product `Agent` | 已有运行期 `AgentConfig` / `AgentBinding` 投影;还没有正式持久化产品对象。 | Agent Platform / binding persistence UI。 | 持久 Agent 保存 runner id、runner config、resource/state/delivery policy;运行前投影为 `AgentBinding`。 | 不把持久 Agent schema 加进 SDK 协议;插件实例边界见 PROTOCOL_V1 §13。 |
| Bot / channel 绑定 Agent | 已有单次运行前的 `AgentBinding` 解析投影;目标调度语义见 PROTOCOL_V1 §13。 | EBA / Agent Platform。 | EventRouter 根据 bot、channel、workspace、conversation、event type 解析有效 `AgentBinding`。 | 不在本矩阵重定义 fan-out / observer 语义;需要时按 §3 新增设计。 |
| Agent session / run | 当前只有 `run_id` 和 active `AgentRunSessionRegistry`,用于权限校验和生命周期。 | Agent Platform / Runtime Control Plane。 | 如需要可新增持久 `AgentRun` / `AgentSession` / task 表,但执行仍回到 `run(event, binding)` 或 runtime-managed 等价入口。 | 不把持久 session 字段塞进 `AgentRunContext` 顶层;不要求所有 runner 长期持有 LangBot session。 |
| EventLog / Transcript / Sandbox files | 已完成 Host-owned store、history pull API 和 sandbox 文件边界;runner 不直接写 DB。 | 本分支持续维护底座;Agent Platform 可复用。 | 外部 EBA、scheduler、integration、runtime task 都写同一套 EventLog / Transcript;当前 run 文件通过 sandbox/workspace staging 共享。 | 不让 runner / sandbox 直接访问 Host DB;不把大 payload 内联进 prompt。 |
| Host-owned state / storage | 已有 state snapshot、`state.updated` 处理和 State APIstorage 作为授权能力保留。 | 本分支持续维护底座;Runtime / Platform 可复用。 | 外部 session id、working directory、checkpoint 等小 JSON 用 state;当前 run 大对象用 sandbox/workspace 文件。 | 不把跨轮次状态存在插件实例内;不绕过 run-scoped authorization。 |
| EventGateway / EventRouter | 本分支只提供 event-first envelope 和 `run(event, binding)` 入口。 | EBA 分支(联调中)。 | EventGateway 规范化平台/WebUI/API/scheduler 事件;EventRouter 解析一个 binding;调用现有 orchestrator。 | 不为 EBA 新增另一套 runner 调用协议;不把非消息事件伪装成 user message。 |
| Scheduler / Automation | 不实现。文档中只把 `scheduler` 作为 future event source。 | EBA / Agent Platform。 | 定时任务触发 `schedule.triggered` host event,复用 EventGateway -> EventRouter -> `run(event, binding)`。 | 不直接调用某个 runner 插件;不绕过 EventLog / authorization。 |
| Integration provider | 不实现。IM platform adapter 仍是当前平台接入系统。 | EBA / Agent Platform。 | OAuth/webhook/outbound provider 应先转成 canonical host event 或 platform action,再交给 AgentRunner。 | 不把 Linear/Slack/GitHub 等 provider 私有 payload 扩散到 runner 协议顶层。 |
| Platform action / delivery | `action.requested` 已预留但当前仅 telemetry,不执行。`DeliveryContext` 只作为上下文/策略投影。 | EBA / platform action executor。 | 后续 executor 校验 runner capability、binding policy、actor/bot/workspace 权限和审批后执行。 | 不让 runner 直接调用平台 adapter 私有 API;不把平台动作伪装成文本回复副作用。 |
| Runtime registry / worker / task queue | 不实现。当前官方外部 harness 通过 ACP、远端 daemon、本机 subprocess 或外部 HTTP API runner 调用目标运行环境,不在本分支维护通用 worker。 | Runtime Control Plane v2。 | 第一阶段先补 Host-owned `AgentRun` / `AgentRunEvent` / run control primitives;完整 runtime registry、heartbeat、task queue、daemon claim、progress/audit 是后续可选阶段。 | 不把 heartbeat/task/warm pool 放进 Protocol v1;不让管理插件拥有 runtime/task 事实源。 |
| Warm pool / reconcile / diagnose | 不实现。 | Runtime Control Plane v2 / deployment layer。 | 作为 task/runtime 的运维能力,围绕 Host-owned runtime/task/audit 表实现。 | 不把 runtime 运维语义写进普通 runner 协议;不把 pod/task 细节泄漏给普通 runner。 |
| Agent memory | 不实现通用长期记忆产品层;提供 history/state/storage 和 sandbox 文件基础能力。 | Agent Platform 或具体 runner/plugin。 | 平台 memory 可通过 Host storage/state 或独立产品表实现,runner 通过授权 API 拉取。 | 不在 Host core 内置通用 agentic memory 策略;不默认把 memory 全量 inline 到 context。 |
| External harness native session | ACP / Claude Code / Codex 等 runner 支持 external session id state handoff 和 LangBot resource projection。 | 官方 runner 后续增强;Runtime Control Plane v2 可接管执行。 | 外部 harness 调用继续走 `runner.run(ctx)`;如后续引入长连接/daemon 模式,按 external session key 串行 turnreader 独占 native stream。 | 不把具体 provider native wire 变成 LangBot 协议;全局锁边界见 PROTOCOL_V1 §13。 |
## 3. 后续分支接入规则
外部 EBA、Agent Platform 或 Runtime Control Plane 分支接入时,默认遵守以下规则:
- 新入口只生产或解析 Host 内部模型:`AgentEventEnvelope`、持久 Agent 投影出的 `AgentBinding`、以及必要的 delivery/resource/state policy。
- runner 调用仍走 `AgentRunOrchestrator.run(event, binding)`,除非 Runtime Control Plane 明确引入 runtime-managed 执行模式;即便如此,runner 可见合同仍应保持 Protocol v1。
- Host-owned facts 继续写入 EventLog / Transcript / State,当前 run 文件继续走 sandbox/workspace;产品层可以新增更高阶视图,但不能替代这些事实源。
- 新能力如果需要持久化,优先加 Host-owned 表或 service;不要把事实源藏在插件 storage 或 runner subprocess 内。
- 新 result type 可以按 Protocol v1 的演进规则增加;不能用入口 adapter 私有字段绕过 schema。
- 任何 fan-out、observer agent、parallel arbitration、platform action execution 都必须单独定义 delivery、state conflict、approval 和 audit 语义。
## 4. 与 Agent Platform 产品层的关系
这里的 Agent Platform 指面向 agent 产品层的实体拆分:`Agent` 描述可配置 agent`Session` / `SessionMessage` 描述会话事实,`Automation` 描述自动触发,`IntegrationBinding` 描述外部集成连接,`Memory` 描述长期记忆,`WarmTask` 描述预热/后台任务。这些拆分对 LangBot 后续产品层有参考价值,但不能直接搬进本分支。
LangBot 当前分支的对应目标是更底层的:把 IM/WebUI/API 等入口统一投影到 Host event,把 Agent / binding 配置统一投影到 runner binding,把 runner 能力统一收束到 Protocol v1。完整 Agent Platform 可以在这个底座之上构建,而不应反过来污染本分支的 runner 外化边界。
@@ -0,0 +1,263 @@
# LangBot Host 与 SDK 基础设施设计
本文档描述 LangBot 作为 agent host 的内部能力与分层架构,以及 Host 内部模型。
- SDK ↔ Host 的协议数据结构(`AgentRunContext``AgentRunnerManifest``AgentRunResult``AgentRunAPIProxy` 等)的**唯一定义在** [PROTOCOL_V1.md](./PROTOCOL_V1.md);本文只引用,不重抄。
- 测试执行入口和 smoke 记录见 [AGENT_RUNNER_QA_GUIDE.md](./AGENT_RUNNER_QA_GUIDE.md);安全发布门槛见 [SECURITY_HARDENING.md](./SECURITY_HARDENING.md)。
- 本文定义的 Host 内部模型(`AgentEventEnvelope``AgentBinding``AgentRunnerDescriptor`)不属于 SDK 协议字段。
## 1. 目标
LangBot 要转为 agent host,而不是内置 runner 容器:
- 接收 IM、WebUI、API 和外部 EBA 分支 EventRouter 产生的事件。
- 根据事件、bot、workspace、scope 解析应该调用的 Agent / agent binding。
- 发现、校验和调用插件提供的 AgentRunner。
- 为每次 run 提供受限资源、状态、存储、上下文引用和生命周期控制。
- 接收 AgentRunner 返回的事件流,投递到 IM、WebUI 或其他 output surface。
## 2. 非目标
- 不把 Pipeline 当作长期架构中心。
- 不要求所有 AgentRunner 依赖 LangBot 的上下文管理。
- 不要求官方 local-agent 的旧行为反向塑造 host 协议。
- 不在 host 中实现通用 agentic prompt assembler。
- 不强制 runner 使用 LangBot state / storage;只提供可选、受控的寄宿能力。
- 不实现 EventGateway / EventRouter:它们由外部 EBA 分支提供并联调。本分支只定义 host-side envelope/binding models 和 `run(event, binding)` 入口。
## 3. 分层架构
```text
IM / WebUI / API / EventRouter (external EBA branch)
|
v
Event Gateway (external EBA branch)
|
v
AgentBindingResolver
|
v
AgentRunOrchestrator
|-- AgentRunnerRegistry
|-- AgentResourceBuilder
|-- AgentContextBuilder
|-- AgentRunSessionRegistry
|-- PersistentStateStore / EventLogStore / TranscriptStore
|-- Sandbox / workspace file tools
v
Plugin Runtime / AgentRunner
|
v
AgentRunResult stream
|
v
Delivery / Renderer / Platform API
```
目标产品模型、单绑定调度、Agent 复用、插件实例无状态和 fan-out 边界以 [PROTOCOL_V1.md](./PROTOCOL_V1.md) §13 为准。本文只说明 Host 如何把当前入口投影为内部模型。当前 Pipeline 只应接入在 Query entry adapter 位置:它可以继续产生 `message.received` 并投影出临时 `AgentConfig` / `AgentBinding`,但不应再拥有 runner 选择、上下文裁剪和业务 agent 执行的核心语义。EventGateway / EventRouter 由外部 EBA 分支实现并联调。
## 4. LangBot 侧能力
### 4.1 Event Gateway / EventRouterExternal EBA Branch Integration Point
> EventGateway / EventRouter 由外部 EBA 分支实现并联调,不在本分支范围。本分支只保留 event-first 入口和 envelope/binding models。
Event Gateway 将把入口统一成 host eventIM 平台消息、WebUI debug chat、API 触发、后续非消息事件),输出稳定的 `AgentEventEnvelope`Host 内部模型):
```python
class AgentEventEnvelope(BaseModel):
event_id: str
event_type: str
event_time: int | None
source: str
bot_id: str | None
workspace_id: str | None
conversation_id: str | None
thread_id: str | None
actor: ActorRef | None
subject: SubjectRef | None
input: AgentInput # 见 PROTOCOL_V1 §5.6
delivery: DeliveryContext # 见 PROTOCOL_V1 §5.7
raw_ref: RawEventRef | None
metadata: dict[str, Any] = {}
```
`AgentEventEnvelope` 是 Host 内部入口模型;投影给 runner 的是 `ctx.event`PROTOCOL_V1 §5.4)。原始平台 payload 存为 raw event 或 staged file reference,不扩散到 runner 协议顶层。
**当前 adapter source**`QueryEntryAdapter.query_to_event(query)` 从 Query 生成 `AgentEventEnvelope`
### 4.2 AgentConfig 与 AgentBinding
`AgentConfig` 是迁移期的 Host 内部 Agent 配置投影(不暴露给 SDK)。当前 Query entry adapter 从 Pipeline config 投影出它;未来持久 Agent 也应先投影成这个运行期配置,再由 BindingResolver 结合事件和 scope 解析为 `AgentBinding`
```python
class AgentConfig(BaseModel):
agent_id: str | None = None
runner_id: str
runner_config: dict[str, Any] = {}
resource_policy: ResourcePolicy = ResourcePolicy()
state_policy: StatePolicy = StatePolicy()
delivery_policy: DeliveryPolicy = DeliveryPolicy()
event_types: list[str] = ["message.received"]
enabled: bool = True
metadata: dict[str, Any] = {}
```
`AgentBinding` 是"什么事件调用哪个 AgentRunner、带什么 Agent 配置"的 Host 内部运行投影(不暴露给 SDK)。它是 EventRouter / 当前 QueryEntryAdapter 在一次运行前解析出的有效绑定。
```python
class AgentBinding(BaseModel):
binding_id: str
enabled: bool
scope: BindingScope
event_types: list[str]
filters: list[EventFilter] = [] # EBA 阶段使用,见 EVENT_BASED_AGENT
runner_id: str
runner_config: dict[str, Any]
resource_policy: ResourcePolicy
state_policy: StatePolicy
delivery_policy: DeliveryPolicy
```
BindingResolver 的基数、fan-out 和冲突处理约束见 PROTOCOL_V1 §13;本节只定义 Host 内部投影形态。
**当前 adapter source**`QueryEntryAdapter.config_to_agent_config(query, runner_id)`
先把 current config 投影为迁移期 `AgentConfig`,再由
`AgentBindingResolver.resolve_one(event, [agent_config])` 解析出唯一
`AgentBinding`。Pipeline 当前只是迁移期 Agent config sourceAI runner config
→ runner_config、extension preference → resource_policy、output settings →
delivery_policy),但新设计不再把这些字段命名为 Pipeline 专属概念。
### 4.3 AgentRunnerRegistry
Registry 收集 runner descriptor(来自插件 runtime、开发期本地插件):
```python
class AgentRunnerDescriptor(BaseModel):
id: str
source: Literal["plugin"]
label: I18nObject
description: I18nObject | None = None
plugin_author: str
plugin_name: str
runner_name: str
capabilities: AgentRunnerCapabilities # 见 PROTOCOL_V1 §4.3
permissions: AgentRunnerPermissions # 见 PROTOCOL_V1 §4.4
config_schema: list[DynamicFormItemSchema]
plugin_version: str | None = None
raw_manifest: dict[str, Any] = {}
```
职责:调用 `plugin_connector.list_agent_runners()` 拉取 runner、校验 typed `AgentRunnerManifest`、输出 descriptor、缓存 discovery 结果并提供 `refresh()`。单个插件 manifest 失败只记 warning,不影响其它 runner。`plugin:author/name/runner` 是稳定 id 格式;插件实例边界见 PROTOCOL_V1 §13。
Host 内置 runner / adapter 不能作为 `AgentRunnerDescriptor.source` 绕过插件
runtime、`run_id``ctx.resources``AgentRunAPIProxy` 权限链。若需要
开发期调试 adapter,应放在 Host 内部测试入口,不进入可选 runner 列表。
刷新触发点:插件安装/卸载/升级/重启后;Pipeline metadata 请求时发现缓存为空;可选 TTL(优先保证正确性)。
### 4.4 AgentRunOrchestrator
Orchestrator 是唯一运行入口:
```text
run(event, binding)
-> resolve runner descriptor
-> build resources
-> build context
-> register run session
-> call plugin runtime
-> normalize result stream
-> update state
-> unregister run session
```
它负责:`run_id` 生成和生命周期、timeout/deadline/cancellation、插件异常隔离、result schema 校验和大小限制、`state.updated` 处理、delivery backpressure 和 telemetry。
典型 run 时序:
```text
QueryEntryAdapter / EventRouter
-> AgentRunOrchestrator.run(event, binding)
-> AgentRunnerRegistry.resolve(runner_id)
-> AgentResourceBuilder.freeze_snapshot(binding, event)
-> AgentRunSessionRegistry.register(run_id, runner_id, snapshot)
-> AgentContextBuilder.build(event, binding, snapshot)
-> PluginRuntimeConnector.run_agent(ctx)
-> AgentRunAPIProxy action
-> validate active run session + caller identity + snapshot
-> Host API / Store
<- AgentRunResult stream
-> apply state.updated to PersistentStateStore
-> write message.completed to Transcript
-> keep current-run files and large tool outputs in sandbox/workspace
-> render delivery or raise RunnerExecutionError
-> AgentRunSessionRegistry.unregister(run_id)
```
`run_from_query()` 保留为 Query entry adapter 入口,但内部转换成 event + binding 后走统一 `run()`。约束:`ChatMessageHandler` 不解析 `plugin:*`、不实例化 wrapper、不知道 runner 组件细节;`PipelineService` 从 registry 读取 metadata,不直接访问插件 runtime;跨请求持久化状态必须走授权 storage / 外部服务。
### 4.5 Resource Authorization
LangBot 在每次 run 前生成 `ctx.resources`PROTOCOL_V1 §6),来自 manifest permissions 与 binding policy 的交集:
1. `descriptor.permissions` 声明 runner 需要的 LangBot 资源访问上限。
2. binding / resource policy 允许的资源范围。
3. Agent/runner config 中选择的模型、知识库、文件等资源。
4. 当前 event / actor / bot / workspace 的实际权限。
5. `ctx.context.available_apis` 暴露的 pull API 能力。
这次裁剪结果必须冻结为 run-scoped authorization snapshot,并由
`AgentRunSessionRegistry``run_id` 保存。`ctx.resources` 是投影给 runner
看的同一份授权结果;运行期每个 proxy action 只依据该 snapshot 校验 active
run session、caller plugin identity、resource id、scope、payload size、rate
limit 和 deadline。Handler 不应重新执行授权裁剪,否则 build-time 与 runtime
授权逻辑会漂移。
SDK 侧本地校验只用于开发体验,host 侧 run authorization snapshot 才是安全边界。`spec.capabilities` 只帮助 Host 判断 runner 是否需要 tool / knowledge 等资源投影,不能替代 permissions 或 binding policy。skill 不由独立 capability 决定是否投影——它通过统一 tool 授权(`resource_policy.allowed_tool_names`)消费,`skill_authoring` 仅作为「一键授权这组 skill tool + sandbox」的便捷开关。
资源裁剪应通用,不写死 local-agent。selector 与资源的映射示例:`model-fallback-selector` → primary/fallback LLM、`llm-model-selector` → LLM、`rerank-model-selector` → rerank 模型、`knowledge-base-multi-selector` → 知识库;新增 selector 时在 resource builder 中统一扩展。
构造 `ctx.resources.tools` 时,Host 一次塞齐每个工具的完整 schema(`ToolResource.parameters`),runner 不需再逐个 `get_tool_detail` 拉取,减少 N 次往返。
执行/文件/skill/MCP 等能力的接入方向:先由 Host / sandbox 封装成普通 scoped tool,再通过 `ctx.resources.tools` 和 SDK runtime 转发进入 runnerrunner 不应识别或硬编码执行环境 provider。外部 harness 的 native tools 不能直接访问 LangBot 资源。skill 的整个生命周期都走统一 tool:发现走 `list_skills` / `langbot_list_assets`,激活/注册走 `activate` / `register_skill`,包内操作走 native exec/read/write——runner 不需要独立的 skill 渲染或门控。
### 4.6 State / Storage
LangBot 可提供 host-owned state 让 runner 寄宿状态(conversation / actor / subject / runner / binding / workspace state),但**不是强制**。Host 只需提供:授权开关、scope key、get/set/list/delete API(见 PROTOCOL_V1 §8)、持久化 backend、审计和清理策略。外部 agent runtime 可维护自己的 session 和 memory。进程内 state store 只能作为过渡实现,不能作为正式生产语义。
部分 host-owned state 由 Host 自身直接写:例如 `activate` tool 在 Host 侧执行时,把已激活 skill 写入 conversation scope 的 `host.activated_skills`。host 直接写与 runner `state.updated` 写到同一 key 时按 **last-write-wins** 合并,runner 可覆盖。
### 4.7 EventLog / Transcript / Sandbox Files(事实源)
- `EventLog`: durable append-only,保存原始事件、系统事件、工具调用、投递结果、错误。
- `Transcript`: 从 EventLog 投影出的对话视图,用于 UI、审计和按需历史读取。
- `Sandbox / workspace files`: 当前 run 的上传文件、平台附件、工具大结果和临时产物。Host 负责 staging 与授权边界,runner 通过 read/write/exec 类工具按需访问。
三类数据与 working context 的边界、读取约束见 [AGENT_CONTEXT_PROTOCOL.md](./AGENT_CONTEXT_PROTOCOL.md)。AgentRunner 可读取这些能力,但不被迫使用 LangBot 作为唯一记忆系统。
### 4.8 External harness resource projection
Claude Code、Codex、Kimi Code 等外部 harness runner 可能不直接调用 LangBot 的 model/tool loop,而是把 LangBot 事件和授权资源句柄投影到自己的 harness 执行。Host 侧仍保持统一边界:Host 负责构造 event-first context、资源授权、state/storage、EventLog/Transcript、sandbox/workspace 文件边界和审计;Host 或 binding policy 决定哪些 MCP bridge、skill-backed tool、sandbox path、history/state 句柄可投影给 runnerrunner plugin 把 scoped projection 转成目标 harness 可消费形式;所有 LangBot 资源访问必须经 SDK runtime / `AgentRunAPIProxy` / SDK-owned MCP bridge 转发并接受 Host 校验;外部 harness 负责自己的 native session、tool loop、压缩、权限模式和 resume,但不能用 native tools 绕过 Host 授权。
投影的具体形态(context 文件、resource handles、LangBot MCP gateway、state pointers)见 AGENT_CONTEXT_PROTOCOL §4.5;当前 code-agent harness runner 形态见 OFFICIAL_RUNNER_PLUGINS §7。发布级隔离要求见 SECURITY_HARDENING。
## 5. SDK 侧协议
SDK 组件入口如下;所有数据结构定义见 PROTOCOL_V1。
```python
class AgentRunner(BaseComponent):
__kind__ = "AgentRunner"
@classmethod
def get_config_schema(cls) -> list[dict]: ...
async def run(self, ctx: AgentRunContext) -> AsyncGenerator[AgentRunResult, None]: ...
# ctx: PROTOCOL_V1 §5.2 ; AgentRunResult: PROTOCOL_V1 §7
```
- Manifest / capabilities / effective accessPROTOCOL_V1 §4。Capabilities 来自组件 manifest 的 `spec.capabilities`,不是 SDK 基类 classmethod。
- `AgentRunContext`PROTOCOL_V1 §5.2。`messages` / `bootstrap` 不是协议字段。
- `AgentRunResult`PROTOCOL_V1 §7。
- `AgentRunAPIProxy`PROTOCOL_V1 §8,是 runner 访问 host 能力的唯一入口,所有请求带 `run_id`
@@ -0,0 +1,138 @@
# 官方 AgentRunner 插件迁移计划
本文档描述内置 `RequestRunner` 迁出 LangBot 后,官方 runner 插件如何组织、迁移和验收。它是 [HOST_SDK_INFRASTRUCTURE.md](./HOST_SDK_INFRASTRUCTURE.md) 和 [AGENT_CONTEXT_PROTOCOL.md](./AGENT_CONTEXT_PROTOCOL.md) 的下游落地计划,不是 LangBot 宿主协议的设计前提。QA 入口和 smoke 记录见 [AGENT_RUNNER_QA_GUIDE.md](./AGENT_RUNNER_QA_GUIDE.md)。
官方 `local-agent` 可以外移,也可以重写。设计重点不是保留旧内置 runner 的内部结构,而是验证一个依附 LangBot host 基础设施的官方 agent 能否完整工作。同时,LangBot host 协议必须服务 Claude Code SDK、Codex、Pi Agent SDK、外部 Agent 平台等自管 context/runtime 的 runner,不能被官方插件的实现细节绑死。
## 1. 仓库组织
官方 runner 插件与 LangBot 主仓库、SDK 仓库以不同节奏迭代:LangBot 主仓库只维护宿主协议和调度,SDK 仓库维护 AgentRunner 组件和 runtime 协议,官方 runner 插件承载业务 runner 的具体实现和第三方平台适配。
当前推荐"官方插件可独立发布,必要时共享 SDK helper"。开发期采用本地多目录布局:
```text
langbot-app/
langbot-local-agent/ # plugin:langbot/local-agent/default
manifest.yaml
components/agent_runner/default.{yaml,py}
langbot-agent-runner/ # 外部服务 runner 仓库
acp-agent-runner/ claude-code-agent/ codex-agent/ dify-agent/ n8n-agent/ ...
```
后续可聚合进 monorepo,也可继续独立发布——这个选择不影响协议设计。重复逻辑优先沉淀到 SDK 或明确的共享 helper 包,不要把宿主私有结构泄漏给插件。旧 `src/langbot/pkg/provider/runners/*` 只作为历史行为对齐基准;当前未发布分支不提供旧内置 runner 的运行时 fallback。
## 2. 插件命名和 runner id
| 旧 runner | 官方插件 | runner id |
| --- | --- | --- |
| `local-agent` | `langbot/local-agent` | `plugin:langbot/local-agent/default` |
| `dify-service-api` | `langbot/dify-agent` | `plugin:langbot/dify-agent/default` |
| `n8n-service-api` | `langbot/n8n-agent` | `plugin:langbot/n8n-agent/default` |
| `coze-api` | `langbot/coze-agent` | `plugin:langbot/coze-agent/default` |
| - | `langbot/acp-agent-runner` | `plugin:langbot/acp-agent-runner/default` |
| - | `langbot/claude-code-agent` | `plugin:langbot/claude-code-agent/default` |
| - | `langbot/codex-agent` | `plugin:langbot/codex-agent/default` |
| `dashscope-app-api` | `langbot/dashscope-agent` | `plugin:langbot/dashscope-agent/default` |
| `deerflow-api` | `langbot/deerflow-agent` | `plugin:langbot/deerflow-agent/default` |
| `langflow-api` | `langbot/langflow-agent` | `plugin:langbot/langflow-agent/default` |
| `tbox-app-api` | `langbot/tbox-agent` | `plugin:langbot/tbox-agent/default` |
| `weknora-api` | `langbot/weknora-agent` | `plugin:langbot/weknora-agent/default` |
每个插件可后续提供多个 runner,但迁移目标的默认 runner 统一叫 `default`
## 3. 迁移批次
- **Batch 1(打通协议)**`local-agent`(能力最完整基准)、`acp-agent-runner` / `claude-code-agent` / `codex-agent`(外部 code-agent harness 路径)、`dify-agent`(传统 service API runner)。
- **Batch 2(外部 workflow**`n8n-agent``langflow-agent`webhook/workflow 输入输出、timeout、外部 conversation id)。
- **Batch 3(平台 Agent API**`coze-agent``dashscope-agent``tbox-agent``deerflow-agent``weknora-agent`(平台特有响应格式、引用资料、文件/图片输入、外部 thread/session 状态)。
## 4. 每个官方插件的组件要求
每个插件至少包含一个 `AgentRunner` 组件,manifest 示例:
```yaml
apiVersion: langbot/v1
kind: AgentRunner
metadata:
name: default
label: { en_US: Dify Agent, zh_Hans: Dify Agent }
description:
en_US: Run a Dify application as a LangBot AgentRunner.
zh_Hans: 将 Dify 应用作为 LangBot AgentRunner 运行。
spec:
config: []
capabilities: # 字段语义见 PROTOCOL_V1 §4.3
streaming: true
execution:
python: { path: ./main.py, attr: DefaultAgentRunner }
```
## 5. local-agent 插件方向
`local-agent` 是官方插件中能力最完整的消费者,但不是宿主协议的设计中心。它需要证明:一个主要依附 LangBot host 能力的 agent runner 可以通过公开协议完成模型、工具、知识库、状态、history、sandbox 文件访问、上下文压缩和消息投递。
迁移或重写需覆盖旧内置 runner 的用户可见能力:model primary/fallback 选择、prompt、knowledge-bases、rerank-model、rerank-top-k、function calling、streaming、multimodal input、conversation history、monitoring metadata。
责任边界与 Host API 消费方式见 AGENT_CONTEXT_PROTOCOL §8。关键约束:
-`ctx.config` 读取静态绑定 `prompt`**不**读取 `ctx.adapter.extra["prompt"]`;不消费 Query entry adapter 生成的历史窗口。
- 通过 `AgentRunAPIProxy.history` 拉取 transcript,而不是依赖 host 每轮强塞历史窗口。
- `ctx.input.contents` 保留图片/文件等多模态内容;RAG 只替换/插入文本部分,不丢图片/文件。
- 不能绕过 `ctx.resources` 调用未授权模型、工具或知识库。
- manifest 声明功能能力、LangBot 资源 permissions 和配置表单;实际授权来自 manifest permissions 与 binding resource policy、runner config、`ctx.context.available_apis` 和 Host run session snapshot 的交集。
### 5.1 Native Execution / Skills 后续接入
本阶段不把 sandbox/skills 做成 AgentRunner 协议字段。后续 sandbox/skills 分支合并后,命令执行、文件操作、skill、MCP managed process 应先由 Host / sandbox 封装成 scoped tools,再通过 `ctx.resources.tools` 和 SDK runtime 转发暴露给 runner。这让 local-agent 只消费授权后的 Host 基础设施,而不是直接持有宿主机执行能力。
## 6. 外部 runner 插件要求
外部平台 runner 迁移遵循:旧配置字段尽量保持同名便于 migration 复制;输出统一转换为 `AgentRunResult`;外部 API timeout 从 runner config 读取;平台 conversation id 存 plugin storage 或 context runtime state,不依赖 LangBot 内置 conversation uuid 私有结构;流式按平台能力声明,没有流式就只发 `message.completed`
### 6.1 Code-agent harness runner
Claude Code、Codex、Kimi Code 这类 runner 不一定通过 LangBot 的模型/工具 loop 执行,可以依赖自己的 harness,但仍必须遵守统一 Host 边界。总体边界见 [HOST_SDK_INFRASTRUCTURE.md](./HOST_SDK_INFRASTRUCTURE.md) §4.8context projection 形态见 [AGENT_CONTEXT_PROTOCOL.md](./AGENT_CONTEXT_PROTOCOL.md) §4.5;发布级要求见 [SECURITY_HARDENING.md](./SECURITY_HARDENING.md)。
本文件只补充官方 runner 的实现要求:输入来自 `ctx.event` / `ctx.input`,不依赖 Pipeline 私有 `Query`;外部 session id / workspace / checkpoint 写入 Host state 或 plugin storage;插件实例边界见 PROTOCOL_V1 §13CLI / subprocess runner 必须处理 timeout、取消、空输出、非零退出和 stderr 映射。
实现结构应把 provider-native output 解析与 LangBot result stream 组装分开:Claude stream-json、Codex JSONL、Kimi / OpenCode 事件等只在 runner adapter 内解析,输出统一归一为 `AgentRunResult``message.completed` / `message.delta``state.updated``run.completed` / `run.failed`)。文件和工具大结果留在当前 run 的 sandbox/workspace,通过消息 metadata、attachment ref 或 path 指向。未知 native event 不应导致 run 崩溃;应记录诊断 metadata 或 warning。新增 harness 时优先补 native fixture -> `AgentRunResult` 的转换测试,再接 WebUI smoke。
并发约束应按外部 session 粒度表达,而不是按 Agent / runner id / 插件实例表达;Agent 复用和全局锁边界见 PROTOCOL_V1 §13。若 runner 使用 `external.session_id` / `thread_id` resume 到同一 native session,且该 harness 不支持并发 turnrunner 应按稳定 external session key 串行写入;一次性 subprocess runner 可以只在单次 `run(ctx)` 内处理,长连接/daemon runner 则应采用 reader 独占 native stream、turn writer 串行写入的结构。
### 6.2 LangBot MCP gateway
外部 harness 不能直接持有进程内的 `plugin_runtime_handler`,也不能用自己的 native tools 直接访问 LangBot 资源。外部 harness runner 应通过稳定 HTTP MCP gateway 或 SDK-owned bridge 把 harness 的工具请求转回 SDK runtime / Host API
- Gateway 由 runner 插件启动,暴露稳定的 `langbot_history_page``langbot_retrieve_knowledge``langbot_call_tool` 等最小工具面。
- Harness 每次调用必须携带当前 LangBot `run_id`Host 仍按 run session、caller identity 和授权快照校验。
- Gateway 只转发 LangBot 资产访问,不承担外部 harness 的文件、进程或 native tool 权限边界。
第一批工具保持很小:history page、knowledge retrieve、authorized tool call。新增工具必须先有 Host action 权限与 run-scoped authorization,再由 gateway 投影。
## 7. Code-agent harness runner 当前形态
外部 code-agent harness 由直接 runner 插件承接,例如 `acp-agent-runner``claude-code-agent``codex-agent`,每个 runner 负责把目标 harness 的 native session、workspace、MCP bridge 和输出事件转换为统一 `AgentRunResult`。本地 smoke 验收入口与记录见 [AGENT_RUNNER_QA_GUIDE.md](./AGENT_RUNNER_QA_GUIDE.md)。
当前形态:
- Runner ID 示例:`plugin:langbot/acp-agent-runner/default``plugin:langbot/claude-code-agent/default``plugin:langbot/codex-agent/default`
- Runner 可通过 ACP、远端 daemon、本机 subprocess 或外部 HTTP API 调用 harnessharness 的安装、登录态、workspace 和 provider-native 权限由该运行环境负责。
- Runner 会把当前 LangBot `run_id`、可访问资源摘要和 gateway 使用规则注入本次消息;harness 通过 gateway 回填 `run_id` 后访问 LangBot 资产。
- 外部 session id / workspace / checkpoint 写回 Host state 或 plugin storage,后续轮次可复用目标 harness 会话。
### 7.1 当前限制
这不是发布级安全边界实现;LangBot 只约束 LangBot 持有资产的访问,外部 harness 的文件、进程、workspace、provider-native MCP 和模型凭据由对应 runner 的运行环境承担。当前 `run_id` 可由系统提示词、ACP metadata 或 runner 自有 session metadata 传递给 harness 并由 gateway 校验。runtime 管控面方向见 [RUNTIME_CONTROL_PLANE_V2.md](./RUNTIME_CONTROL_PLANE_V2.md)。
## 8. 发布和安装策略
最终 LangBot 安装/升级时需保证官方 runner 插件可用,可选方案:首次启动检测缺失并提示安装;打包发行版预装;migration 前检查插件存在性。当前分支未发布,因此不把历史配置兼容或旧内置 runner fallback 写入运行时协议面。建议顺序:开发阶段用本地路径插件 → 发布前支持 marketplace 安装 → 若发布升级需要迁移历史配置,再在 release gate 中实现一次性 migration 并要求官方插件已可用。
## 9. 验收标准
- 每个目标 runner 都有对应官方 AgentRunner 插件和稳定 runner id;当前配置只使用 `ai.runner.id` + `ai.runner_config[id]`
- LangBot 主聊天路径不再通过 `RequestRunner` 执行业务 runner。
- 官方插件测试覆盖非流式、流式、错误、timeout、配置缺失。
- `local-agent` 能完成模型 fallback、tool calling、知识库检索、多模态输入、静态绑定 prompt 消费、history API 拉取、rerank。
- 外部 code-agent harness runner 能消费 event-first context、投影 scoped resources、保存 external session state,并通过 WebUI Debug Chat smoke。
- `local-agent` 覆盖旧内置 runner 的用户可见核心能力;代码结构和运行路径不需要相同。
@@ -0,0 +1,736 @@
# LangBot AgentRunner Protocol v1
本文档是 LangBot Host 与插件 SDK / Runtime / AgentRunner 之间协议合同的**唯一规范来源(single source of truth**。
- 本文件描述当前 Protocol v1 稳定合同,不混入验收流水。当前实现状态见 [STATUS.md](./STATUS.md),测试执行入口见 [AGENT_RUNNER_QA_GUIDE.md](./AGENT_RUNNER_QA_GUIDE.md),安全发布门槛见 [SECURITY_HARDENING.md](./SECURITY_HARDENING.md)。
- 本文件之外的任何文档**不得重新定义这里的数据结构**,只能引用,例如"见 PROTOCOL_V1 §4.2"。
- Host 内部模型(`AgentEventEnvelope``AgentBinding`、Descriptor、各 Store)不属于 SDK 协议,定义在 [HOST_SDK_INFRASTRUCTURE.md](./HOST_SDK_INFRASTRUCTURE.md)。
## 1. 协议目标
Protocol v1 只解决四件事:
- LangBot 如何发现插件提供的 AgentRunner。
- LangBot 如何把一次事件调用封装成 `AgentRunContext`
- AgentRunner 如何以事件流形式返回运行结果。
- AgentRunner 如何通过受限 API 访问 LangBot host 能力。
Protocol v1 **不定义**
- LangBot 内部如何持久化 `AgentBinding`(见 HOST_SDK)。
- AgentRunner 内部如何组装 prompt、压缩历史、管理 memory(见 [AGENT_CONTEXT_PROTOCOL.md](./AGENT_CONTEXT_PROTOCOL.md))。
- 官方 runner 的具体实现(见 [OFFICIAL_RUNNER_PLUGINS.md](./OFFICIAL_RUNNER_PLUGINS.md))。
- Pipeline 的长期配置模型。
- 发布级安全 hardening 的完整实现(见 [SECURITY_HARDENING.md](./SECURITY_HARDENING.md))。
## 2. 参与方
| 名称 | 职责 |
| --- | --- |
| LangBot Host | 事件入口、绑定解析、权限、资源、存储、生命周期、结果投递。 |
| Plugin Runtime | 加载插件,响应 Host 的 runner discovery 和 run 调用。 |
| AgentRunner | 插件提供的 agent 执行组件。 |
| AgentRunAPIProxy | AgentRunner 访问 Host 能力的受限 API。 |
| AgentBinding | Host 内部的事件到 runner 绑定配置,不直接暴露给 SDK(见 HOST_SDK §4.2)。 |
产品层的 `Agent` 替代旧 Pipeline 承载 agent 配置:bot / IM channel
绑定一个 Agent,一个 Agent 可以被多个 bot / channel 复用。Host 内部的
`AgentBinding` 是一次事件运行前解析出的有效绑定,只影响 Host 构造出的
`ctx.config``ctx.resources``ctx.context``ctx.delivery`。SDK 不需要知道
Agent / binding 的持久化形态。
外部 harness runnerClaude Code、Codex、Kimi Code 等)也是 `AgentRunner`:它们消费 event-first `AgentRunContext`、返回 `AgentRunResult`,并通过 Host 授权的 state/storage API 保存跨轮次指针;当前运行文件和工具大结果进入 sandbox/workspace。它们内部可以继续使用自己的 session、tool loop、MCP、上下文压缩和权限模型。
## 3. 协议演进
当前 AgentRunner 合同不暴露显式 `protocol_version` 字段。协议演进先按字段级兼容规则处理:
- 新增可选字段保持向后兼容。
- 删除字段或改变既有字段语义,需要在 SDK 发布前完成;发布后应走新的显式兼容方案。
- 结果流演进:Host **必须忽略未知 result type 并记录 warning**(除非该 type 明确要求强校验)。SDK envelope 接收入站未知 `type` 字符串,runner 侧可按原字符串转发或忽略;新增 result type 不提升大版本。
- SDK 入站 context 类实体偏宽松,用于兼容 Host 附加的非核心字段;manifest、result payload、page/result 返回与错误模型偏严格,未知字段默认禁止。安全边界仍在 Host,SDK 校验只提升开发体验。
## 4. Discovery 协议
### 4.1 LIST_AGENT_RUNNERS
Host 调用 Plugin Runtime 获取当前插件暴露的 runner 列表,请求无额外 payload。返回:
```python
class ListAgentRunnersResponse(BaseModel):
runners: list[AgentRunnerDiscovery]
class AgentRunnerDiscovery(BaseModel):
plugin_author: str
plugin_name: str
runner_name: str
manifest: AgentRunnerManifest
```
`manifest` 是 SDK typed `AgentRunnerManifest`,由 Runtime 从插件组件 manifest 解析并校验后返回。`plugin_author` / `plugin_name` / `runner_name` 保留为 transport 寻址字段;Host 以它们生成稳定 runner id,并把 `manifest.id` 校验为 `plugin:author/name/runner`。单个 runner manifest 解析失败时 Runtime/Host 记录 warning 并跳过该 runner,不影响同一插件或其它插件的 runner discovery。
### 4.2 AgentRunnerManifest
这里的 manifest 指 Runtime 返回给 Host 的 typed runner manifest
```python
class AgentRunnerManifest(BaseModel):
id: str
name: str
label: I18nObject
description: I18nObject | None = None
capabilities: AgentRunnerCapabilities = AgentRunnerCapabilities()
permissions: AgentRunnerPermissions = AgentRunnerPermissions()
config_schema: list[DynamicFormItemSchema] = []
metadata: dict[str, Any] = {}
```
- runner id 由 Host 生成,格式 `plugin:author/name/runner`
- `name` 是插件内 runner 名称,例如 `default`
- `config_schema` 只描述绑定配置表单,不代表插件实例状态。
- `capabilities` 是 Host 用于 UI 和资源投影的 typed bool model;它不是权限授予。
- `permissions` 是 runner 申请的 LangBot 资源访问上限;实际授权仍必须与 binding policy 求交。
- `metadata` 只放展示、诊断、非稳定扩展信息。
### 4.3 Capabilities
```python
class AgentRunnerCapabilities(BaseModel):
streaming: bool = False
tool_calling: bool = False
knowledge_retrieval: bool = False
multimodal_input: bool = False
skill_authoring: bool = False
interrupt: bool = False
steering: bool = False
model_config = ConfigDict(extra="forbid")
```
- `streaming`: runner 可以返回 `message.delta`
- `tool_calling`: runner 可能调用 Host tool API。
- `knowledge_retrieval`: runner 可能调用 Host knowledge API。
- `multimodal_input`: runner 可以处理非纯文本 input / attachment。
- `skill_authoring`:(降级为便捷开关,非访问硬前提)声明该 runner 期望使用 LangBot skill 工具链。skill 本身通过**统一 tool 授权**获得——发现走 `list_skills` / `langbot_list_assets`,激活/注册走 `activate` / `register_skill`,操作走 native exec/read/write,全部计入 `resource_policy.allowed_tool_names`。该 capability 仅作为「一键授权这组 skill tool + sandbox」的便捷开关,不再单独决定 skill 是否可用。
- `interrupt`: runner 支持取消或中断。
- `steering`: runner 支持在 turn 边界通过 Host pull API 消费同 conversation 在途追加消息。
Capabilities 字段全部是 `bool`,未知 key 禁止进入 typed manifest。早期草案里的上下文/会话类 capability 已删除;对应语义由 event-first context 和 runner-owned context 原则表达。
### 4.4 Permissions 与 Effective Access
```python
class AgentRunnerPermissions(BaseModel):
models: list[Literal["invoke", "stream", "rerank"]] = []
tools: list[Literal["detail", "call"]] = []
knowledge_bases: list[Literal["list", "retrieve"]] = []
history: list[Literal["page", "search"]] = []
events: list[Literal["get", "page"]] = []
storage: list[Literal["plugin", "workspace"]] = []
files: list[Literal["config", "knowledge"]] = []
model_config = ConfigDict(extra="forbid")
```
平台动作执行不属于当前 permissions。Platform action executor / EBA action 分支落地前,runner 只能返回 `action.requested` telemetryHost 不执行平台动作。
Runner 实际可用 LangBot 资源来自 Host 在 run 前冻结的授权快照:
```text
effective_access = manifest.permissions ∩ binding.resource_policy ∩ current scope/config
```
具体落地:
1. `AgentResourceBuilder` 先用 manifest permissions 与 binding resource policy / runner config 求交,生成 `ctx.resources`
2. `AgentContextBuilder` 用 manifest permissions 与 binding state/storage policy 求交,生成 `ctx.context.available_apis`
3. `AgentRunSessionRegistry` 冻结 run-scoped resources 与 available APIs。
4. Runtime handler / `AgentRunAPIProxy` 按 active `run_id`、runner identity、caller plugin identity、resource id、scope、payload size、rate limit 和 deadline 校验每次调用。
反承诺:manifest permissions **只约束 LangBot 持有的资源访问**。它不承诺限制外部 harness 的 native shell、文件系统、CLI、MCP、网络或本机权限;这些能力由 operator/runtime/sandbox 另行约束,见 HOST_SDK §4.8 与 SECURITY_HARDENING。
默认原则:
- Host 不得默认 inline 全量历史。
- Host 只 inline 当前 event / input 和 context handles。
- Runner 拥有 working context assembly。
- Runner 可在授权后通过 Host history / event / state API 拉取更多上下文,并通过授权 sandbox/workspace 工具访问当前运行文件。
- 历史窗口策略不属于 Protocol v1 字段,也不属于 Host 通用语义。
context 边界的设计理由见 [AGENT_CONTEXT_PROTOCOL.md](./AGENT_CONTEXT_PROTOCOL.md)。
## 5. Run 协议
### 5.1 RUN_AGENT
Host 调用 Runtime
```python
class AgentRunRequest(BaseModel):
runner_id: str
runner_name: str
context: AgentRunContext
```
Runtime 返回 `AgentRunResult` 异步流。底层 transport 可继续用 `plugin_author` / `plugin_name` / `runner_name` 定位组件,但协议语义以 `runner_id``context` 为准。
### 5.2 AgentRunContext
这是 SDK 看到的**唯一权威 context 定义**。
```python
class AgentRunContext(BaseModel):
run_id: str
trigger: AgentTrigger
event: AgentEventContext
conversation: ConversationContext | None = None
actor: ActorContext | None = None
subject: SubjectContext | None = None
input: AgentInput
delivery: DeliveryContext
resources: AgentResources
context: ContextAccess
state: AgentRunState
runtime: AgentRuntimeContext
config: dict[str, Any] = {}
adapter: AdapterContext | None = None
metadata: dict[str, Any] = {}
```
核心约束:
- `event` 是必选字段,Protocol v1 是 event-first。
- `input` 表示当前事件的主输入,不等于历史消息。
- `bootstrap` / `messages` **不是协议字段**Host 不内联历史窗口。
- `adapter` 只放入口 adapter 的非核心元数据,runner 不应依赖它做长期能力。
- `config` 是 Agent/runner config,不是插件实例状态。
### 5.3 AgentTrigger
```python
class AgentTrigger(BaseModel):
type: str
source: Literal["platform", "webui", "api", "scheduler", "system", "host_adapter"]
timestamp: int | None = None
```
`trigger.type` 应与 `event.event_type` 一致或更粗粒度。例如入口适配器触发消息时:
```json
{ "type": "message.received", "source": "host_adapter" }
```
### 5.4 AgentEventContext
```python
class AgentEventContext(BaseModel):
event_id: str
event_type: str
event_time: int | None = None
source: str
source_event_type: str | None = None
raw_ref: RawEventRef | None = None
data: dict[str, Any] = {}
```
- `event_type` 使用 LangBot 稳定协议名,例如 `message.received`。稳定事件名清单见 [EVENT_BASED_AGENT.md](./EVENT_BASED_AGENT.md)。
- 平台原始事件名放入 `source_event_type`
- 大型原始 payload 必须放入 `raw_ref` 或 staged file,不应直接塞入 `data`
### 5.5 Conversation / Actor / Subject
```python
class ConversationContext(BaseModel):
conversation_id: str | None = None
thread_id: str | None = None
launcher_type: str | None = None
launcher_id: str | None = None
sender_id: str | None = None
bot_id: str | None = None
workspace_id: str | None = None
session_id: str | None = None
class ActorContext(BaseModel):
actor_type: str
actor_id: str | None = None
actor_name: str | None = None
metadata: dict[str, Any] = {}
class SubjectContext(BaseModel):
subject_type: str
subject_id: str | None = None
data: dict[str, Any] = {}
```
示例:
- 消息事件:actor 是发消息的人,subject 是当前消息。
- 入群事件:actor 是新成员或邀请人,subject 是群/成员关系。
- 定时事件:actor 可以是 systemsubject 是 schedule。
### 5.6 AgentInput
```python
class AgentInput(BaseModel):
text: str | None = None
contents: list[ContentElement] = []
attachments: list[InputAttachment] = []
```
- 文本、多模态、附件都属于当前 event input。
- 大文件、图片、音频、工具大结果应进入授权 sandbox/workspaceinput attachment 只携带轻量 metadata/path/url/content。
- 平台原始消息链不属于 SDK `AgentInput`;需要诊断时放在 Host 内部 envelope 或 `ctx.adapter.extra` 的一次性兼容字段中,不作为长期 runner 合同。
### 5.7 DeliveryContext
```python
class DeliveryContext(BaseModel):
surface: str
reply_target: dict[str, Any] | None = None
supports_streaming: bool = False
supports_edit: bool = False
supports_reaction: bool = False
max_message_size: int | None = None
platform_capabilities: dict[str, Any] = {}
```
Runner 可参考 delivery 能力决定返回 `message.delta``message.completed``action.requested`
### 5.8 ContextAccess
```python
class ContextAccess(BaseModel):
conversation_id: str | None = None
thread_id: str | None = None
latest_cursor: str | None = None
event_seq: int | None = None
transcript_seq: int | None = None
has_history_before: bool = False
inline_policy: InlineContextPolicy
available_apis: ContextAPICapabilities
class InlineContextPolicy(BaseModel):
mode: Literal["none", "current_event", "recent_tail", "summary_tail"]
delivered_count: int = 0
source_total_count: int | None = None
messages_complete: bool = False
reason: str | None = None
class ContextAPICapabilities(BaseModel):
prompt_get: bool = False
history_page: bool = False
history_search: bool = False
event_get: bool = False
event_page: bool = False
state: bool = False
storage: bool = False
steering_pull: bool = False
```
`ContextAccess` 告诉 runnerHost inline 了什么、没 inline 什么、需要更多上下文时走哪些 API。它是 runner 按需读取上下文的入口说明,不是 Host 的业务上下文编排策略。
### 5.9 AgentRuntimeContext
```python
class AgentRuntimeContext(BaseModel):
langbot_version: str | None = None
trace_id: str | None = None
deadline_at: float | None = None
metadata: dict[str, Any] = {}
```
### 5.10 AgentRunState
```python
class AgentRunState(BaseModel):
conversation: dict[str, Any] = {}
actor: dict[str, Any] = {}
subject: dict[str, Any] = {}
runner: dict[str, Any] = {}
```
State 是可选 host-owned snapshot。Runner 也可以完全自管状态。
## 6. Resources
```python
class ToolResource(BaseModel):
tool_name: str
tool_type: str | None = None
description: str | None = None
parameters: dict[str, Any] | None = None # 完整 JSON schema,由 Host 一次塞齐
operations: list[Literal["detail", "call"]] = []
class SkillResource(BaseModel):
skill_name: str
display_name: str | None = None
description: str | None = None
class AgentResources(BaseModel):
models: list[ModelResource] = []
tools: list[ToolResource] = []
knowledge_bases: list[KnowledgeBaseResource] = []
skills: list[SkillResource] = []
storage: StorageResource = StorageResource()
platform_capabilities: dict[str, Any] = {}
```
`tools` 携带每个授权工具的完整 schema(`parameters`),由 Host 在构造 `ctx.resources` 时一次塞齐,runner 不需再逐个调用 `get_tool_detail` 拉取,减少 N 次往返。
`skills` 是本次 run 中 pipeline-visible 的 skill facts`skill_name``display_name``description`)。**skill 通过统一 tool 形式消费,不是独立资源类别**:发现走 `list_skills` tool(或 `langbot_list_assets` 增加 skills 一类),激活走 `activate`,操作走 native exec/read/write。Host **不**把 skill 索引注入 system prompt,也不做 progressive-disclosure 注入;LLM 通过调用发现工具主动查询 skill 清单。Host **可选**在 ctx 提供预渲染的 `suggested_skill_prompt`(首轮延迟优化,runner 可忽略 / override),但它不是访问前提。`skills` 字段本身仅作为发现工具的数据来源与该可选预渲染的输入。
资源列表是本次 run 的授权结果。History / Event / State / Storage 访问通过 `ctx.context.available_apis` 和 Host 侧 run session 校验控制,不作为可枚举 resource list 暴露。Runner 只能通过 `AgentRunAPIProxy` 访问这些能力。当前事件的文件和工具大结果优先进入授权 sandbox/workspace,由 runner 通过 read/write/exec 类工具按需读取。
## 7. Result Stream
### 7.1 AgentRunResult envelope
```python
JSONValue = str | int | float | bool | None | list["JSONValue"] | dict[str, "JSONValue"]
ResultType = Literal[
"message.delta",
"message.completed",
"tool.call.started",
"tool.call.completed",
"state.updated",
"action.requested",
"run.completed",
"run.failed",
]
class AgentRunResult(BaseModel):
run_id: str
type: AgentRunResultType | str
data: dict[str, Any] = {}
usage: LLMTokenUsage | None = None
sequence: int | None = None
timestamp: int | None = None
```
SDK 当前实现是单一 envelope`type` 枚举 + `data` dict。Payload 由 SDK typed model 构造并 dump,但 wire 不改成 discriminated union;这样新旧版本偏斜时 Host 仍可按 §3 忽略未知 `type`
`usage` 是 runner 可选上报的 token 使用量,沿用 SDK `LLMTokenUsage`
```python
class LLMTokenUsage(BaseModel):
prompt_tokens: int | None = None
completion_tokens: int | None = None
total_tokens: int | None = None
# provider-specific detail/cached/reasoning counters are preserved as extra fields
```
约束:
- 运行时能观测到 provider/runtime usage 时,SHOULD 在 terminal `run.completed.usage` 上报本次 run 的最终聚合 token usage。
- `run.failed.usage` MAY 上报失败前已经产生的部分 usage。
- 不能观测 usage 的 runner 合法地省略该字段;缺失表示 unknown,Host 不得按 0 处理。
- ACP 等外部协议不保证统一 usageACP runner 只能在具体 provider/native event 提供 usage 时填充本字段。
- cost 不作为 runner result 的权威字段。Host 后续应基于 usage、model identity、时间和自身价格表计算账单成本;provider 原始 cost 如需保留,可放在 `usage` extra 字段中作为非权威 telemetry。
Host 边界分级校验:
- `message.delta``message.completed``state.updated``action.requested``run.completed``run.failed` 属于会影响投递或 Host 副作用的严格 payload;校验失败时丢弃该 result 并记录 warning。
- `tool.call.started``tool.call.completed` 当前只作为 telemetrypayload 宽松兼容。
- 未知 `type` 忽略并记录 warning。
### 7.2 稳定 result payloads
| type | `data` payload |
| --- | --- |
| `message.delta` | `{ "chunk": MessageChunk }` |
| `message.completed` | `{ "message": Message }` |
| `tool.call.started` | `{ "tool_call_id": str, "tool_name": str, "parameters": dict }` |
| `tool.call.completed` | `{ "tool_call_id": str, "tool_name": str, "result": dict \| None, "error": str \| None }` |
| `state.updated` | `{ "scope": "conversation" \| "actor" \| "subject" \| "runner", "key": str, "value": JSONValue }` |
| `action.requested` | `{ "action": str, "target": dict \| None, "payload": dict \| None }` |
| `run.completed` | `{ "finish_reason": str, "message"?: Message }` |
| `run.failed` | `{ "code": str, "error": str, "retryable": bool }` |
Runner 生成的大文件、工具输出和临时产物不通过 result event 回传;应写入当前 run 的授权 sandbox/workspace,再用消息文本、metadata 或 attachment reference 指向它们。
### 7.3 稳定 result types
| type | 说明 | 当前消费 |
| --- | --- | --- |
| `message.delta` | 流式消息片段。 | ✅ |
| `message.completed` | 完整消息。 | ✅ |
| `tool.call.started` | 工具调用开始的可观测事件。 | telemetry |
| `tool.call.completed` | 工具调用完成的可观测事件。 | telemetry |
| `state.updated` | runner 请求更新 host-owned state。 | ✅ |
| `action.requested` | runner 请求 Host 执行平台动作。 | **reserved / 仅 telemetry,不执行** |
| `run.completed` | run 正常结束。 | ✅ |
| `run.failed` | run 失败。 | ✅ |
`action.requested` 是为 EBA 和 platform API 保留的协议表面:本分支 Host 收到后只记 telemetry**不执行**runner 作者不应在当前 Host 底座中依赖其副作用。真实执行器由外部 EBA / platform action 分支接入;执行模型见 EVENT_BASED_AGENT §6。
Host 必须校验 `state.updated` 的 scope、key、value 大小和 JSON 可序列化性。本分支 `action.requested` 仍只记录 telemetry。
除 runner 经 `state.updated` 写之外,Host 自身也可直接写部分 host-owned state。例如 `activate` tool 在 Host 侧执行时,直接把已激活 skill 写入 conversation scope 的 `host.activated_skills` 快照。当 host 直接写与 runner `state.updated` 写到同一 key 时,按 **last-write-wins** 合并——runner 可以覆盖 host 写的快照。
### 7.4 Stream delivery semantics
- Host 按 Runtime stream 顺序消费 result。当前 v1 不定义跨连接 replay,也不承诺 at-least-once;从 Host 视角,收到的 result 最多应用一次。
- `sequence` 是单个 `run_id` 内的结果序号。in-process / stdio 这类天然有序的在线 stream 可以省略;任何会缓冲、重放、跨进程队列或 runtime-managed task 的 transport 必须提供从 1 开始严格递增的 `sequence`
- Host 看到已提供 `sequence` 的 result 时,应按 `(run_id, sequence)` 做重复检测,并在缺号或乱序时记录 warning;除非 transport 明确声明 replay 语义,Host 不应自行等待缺失序号重排用户可见输出。
- `run.failed.data.retryable` 只表示整次 run 理论上可由上层重试;Protocol v1 不自动重试 run,也不自动重试 proxy action。
- History / Event / Transcript cursor 是 opaque token。runner 不得解析 cursor,也不得假设 cursor 在不同 API、conversation、thread 或 retention window 之间可比较;当前实现即使返回数字字符串,也只是实现细节。
### 7.5 示例
```json
{ "type": "message.delta", "data": { "chunk": { "role": "assistant", "content": "hel" } } }
{ "type": "message.completed", "data": { "message": { "role": "assistant", "content": "hello" } } }
{ "type": "state.updated", "data": { "scope": "conversation", "key": "external.session_id", "value": "abc" } }
{ "type": "action.requested", "data": { "action": "message.edit", "target": {"message_id": "..."}, "payload": {"text": "..."} } }
```
## 8. AgentRunAPIProxy
所有 proxy action 必须携带 `run_id`。Host 必须校验:active run session 存在、caller plugin identity 匹配、resource 在本次 `ctx.resources` 中授权、scope 不越界、payload size / rate limit / deadline 合法。
```python
# Model
await api.invoke_llm(llm_model_uuid, messages, funcs=None, extra_args=None)
await api.invoke_llm_with_usage(llm_model_uuid, messages, funcs=None, extra_args=None)
async for chunk in api.invoke_llm_stream(llm_model_uuid, messages, funcs=None, extra_args=None):
...
async for event in api.invoke_llm_stream_events(llm_model_uuid, messages, funcs=None, extra_args=None):
...
await api.invoke_rerank(rerank_model_id, query, documents, top_k=None)
# Tool
await api.get_tool_detail(tool_name)
await api.call_tool(tool_name, parameters)
# Knowledge
await api.retrieve_knowledge(kb_id, query_text, top_k=5, filters=None)
# History(返回 Transcript projection,不返回原始平台 payload
await api.get_prompt()
await api.history_page(conversation_id=None, before_cursor=None, after_cursor=None,
limit=50, direction="backward", include_attachments=False)
await api.history_search(query, filters=None, top_k=10)
# Event(返回稳定 event envelope 或受限 raw ref,不默认返回大 payload
await api.event_get(event_id)
await api.event_page(conversation_id=None, event_types=None, before_cursor=None, limit=50)
await api.steering_pull(mode="all", limit=None)
# State / Storage
await api.state_get(scope, key); await api.state_set(scope, key, value); await api.state_delete(scope, key)
await api.state_list(scope, prefix=None, limit=100)
await api.get_plugin_storage(key); await api.set_plugin_storage(key, value); await api.delete_plugin_storage(key)
await api.get_plugin_storage_keys()
await api.get_workspace_storage(key); await api.set_workspace_storage(key, value); await api.delete_workspace_storage(key)
await api.get_workspace_storage_keys()
# Host info
await api.get_langbot_version()
```
`invoke_llm()` / `invoke_llm_stream()` 的第一个参数在 SDK 中命名为
`llm_model_uuid`wire payload 字段也是 `llm_model_uuid`。该值对 runner
仍是 opaque identifier,不应解析其内部格式。
`invoke_llm()``invoke_llm_stream()` 保持兼容:前者返回 `Message`,后者只
yield `MessageChunk`。需要 provider 真实 token 计量的 runner 应使用
`invoke_llm_with_usage()``invoke_llm_stream_events()`。Host response 可在
原有 `{message: ...}` / `{chunk: ...}` 外额外携带可选 `usage` 字段;streaming
场景允许在所有 chunk 之后追加一个 usage-only event。`usage` 至少保留
OpenAI-compatible 的 `prompt_tokens``completion_tokens``total_tokens`
若 provider 返回 `prompt_tokens_details` / `completion_tokens_details`
cache token countersHost / SDK 不应丢弃这些字段。没有 usage 的 provider
必须继续返回成功响应,SDK 将 usage 置为 `None`
`get_prompt()` 返回当前 query-backed run 的 Host effective prompt messages
`list[Message]` 的 JSON 形式。该能力只在 `ctx.context.available_apis.prompt_get`
为 true 时可用;没有 query 缓存、prompt 已过期或非 query entry run 时 Host
可以返回错误或空列表。Runner 应在不可用时回退到自己的 config/prompt 策略。
`steering_pull(mode="all")` 是推荐默认:Host 按 claim 顺序返回全部 pending steering 输入并清空对应队列。`mode="one-at-a-time"` 仅用于 runner 主动节流,每次返回一条。Host 不合并多条用户消息;runner 负责在 turn 边界决定模型侧格式。
Steering 审计使用 EventLog 而不是 Transcript schema 扩展:被 active run 吸收的原始 `message.received` 事件保留原事件类型,并在 `metadata.steering` 标记 `status="queued"``trigger_behavior="absorbed_into_active_run"``claimed_by_run_id``claimed_runner_id``claimed_at`。Runner 成功 pull 后,Host 追加 `steering.injected` EventLog 记录,`metadata.steering.status="injected"` 并引用 `source_event_id`。若 run 结束时仍有已 claim 但未 pull 的 steering 输入,Host 追加 `steering.dropped` EventLog 记录,`metadata.steering.status="dropped"` 并引用 `source_event_id`;这不是用户消息事实的删除,只是 dispatch 终态。Transcript 继续只表示会话事实,不承担 dispatch 行为标记。
`state``storage` 的建议边界:`state` 放小型 JSONconversation / actor / subject / runner),`storage` 放 blob 或较大数据(插件私有数据、workspace 数据、checkpoint)。
Compaction checkpoint 的推荐 state 约定:
- scope: `conversation`
- key: `runner.compaction.checkpoint`
- value:
```json
{
"schema_version": "langbot.local_agent.compaction_checkpoint.v1",
"summary": "<conversation_summary>...</conversation_summary>",
"covers_until": "transcript-cursor-or-seq",
"tokens_before": 12345,
"created_at": 1710000000,
"conversation_id": "conv-..."
}
```
`covers_until` 是摘要覆盖到的 transcript 游标锚点。Runner 读取 checkpoint 后应只拉取该游标之后的 transcript;若 checkpoint 缺失、schema 不匹配、conversation 不匹配或游标不可用,应回退到无 checkpoint 的尾部历史拉取行为。
Proxy 返回数据结构也属于本协议:
```python
class TranscriptItem(BaseModel):
transcript_id: str
event_id: str
conversation_id: str | None = None
thread_id: str | None = None
role: str
item_type: str = "message"
content: str | None = None
content_json: dict[str, Any] | None = None
attachment_refs: list[dict[str, Any]] = []
seq: int | None = None
cursor: str | None = None
created_at: int | None = None
metadata: dict[str, Any] = {}
class HistoryPage(BaseModel):
items: list[TranscriptItem] = []
next_cursor: str | None = None
prev_cursor: str | None = None
has_more: bool = False
total_count: int | None = None
class HistorySearchResult(BaseModel):
items: list[TranscriptItem] = []
total_count: int | None = None
query: str
class AgentEventRecord(BaseModel):
event_id: str
event_type: str
event_time: int | None = None
source: str
bot_id: str | None = None
workspace_id: str | None = None
conversation_id: str | None = None
thread_id: str | None = None
actor_type: str | None = None
actor_id: str | None = None
actor_name: str | None = None
subject_type: str | None = None
subject_id: str | None = None
input_summary: str | None = None
input_ref: str | None = None
raw_ref: str | None = None
seq: int | None = None
cursor: str | None = None
created_at: int | None = None
metadata: dict[str, Any] = {}
class EventPage(BaseModel):
items: list[AgentEventRecord] = []
next_cursor: str | None = None
prev_cursor: str | None = None
has_more: bool = False
total_count: int | None = None
class SteeringInputItem(BaseModel):
claimed_run_id: str
runner_id: str
claimed_at: int | None = None
event: AgentEventContext
input: AgentInput
conversation: ConversationContext | None = None
actor: ActorContext | None = None
subject: SubjectContext | None = None
metadata: dict[str, Any] = {}
class SteeringPullResult(BaseModel):
items: list[SteeringInputItem] = []
```
## 9. 错误模型
```python
class AgentAPIError(BaseModel):
code: str
message: str
retryable: bool = False
details: dict[str, Any] = {}
```
| code | 说明 |
| --- | --- |
| `unauthorized` | 未授权访问资源或 scope。 |
| `not_found` | 资源不存在或对当前 runner 不可见。 |
| `deadline_exceeded` | 超过 run deadline。 |
| `payload_too_large` | 请求或响应过大。 |
| `rate_limited` | Host 限流。 |
| `invalid_argument` | 参数错误。 |
| `runtime_error` | Host 或下游能力错误。 |
SDK runner-facing proxy 在 Host 返回结构化错误或畸形响应时抛出 `AgentAPIException`,其中 `error` 字段为 `AgentAPIError`。Legacy transport 只返回字符串错误时,SDK 使用 `host.action_error` 包装,避免 runner 继续依赖裸 `KeyError` 或字符串匹配。
Runner 失败使用 `run.failed`
```json
{ "type": "run.failed", "data": { "code": "runner.error", "error": "failed to call external agent", "retryable": false } }
```
## 10. Timeout 与 Cancellation
- Host 在 `ctx.runtime.deadline_at` 下发总 deadlineSDK proxy 必须用该 deadline 限制单次 action timeout。
- Host 可以取消 active runRuntime 应尽力中断 runner。
- Protocol v1 的 run 绑定当前 Host 进程和当前 runtime channel,不保证跨 Host 重启恢复。Host 重启、runtime channel 断开或 run session 丢失时,Runtime / external harness connector 必须 fail-fast 并尽力取消仍在执行的 runner,不得继续使用旧 `run_id` 调用 Host API。
- Runner 支持中断时应返回或触发 `run.failed`code 为 `cancelled`
- Host 必须 unregister active run session。
## 11. Security 与 Guardrail(协议层)
Protocol v1 的安全边界在 Host
- Runner 不能直接访问未授权 model/tool/kb/history/storage/sandbox。
- SDK 本地校验只提升开发体验,不能替代 Host 校验。
- 所有 resource id 对 runner 来说都是 opaque。
- 默认只能访问当前 conversation / thread 的 history;跨会话、workspace 级访问必须额外授权。
- 大 payload 不应塞进 result event;当前 run 的文件和工具大结果应进入授权 sandbox/workspace,由 read/write/exec 类工具按需访问。
- Host 必须记录 run_id、runner_id、action、resource、scope、result。
Host 不负责业务编排:不拼接全量历史、不替 runner 做 prompt assembly、不内置 agent memory / tool loop / 上下文压缩策略。这些由官方或第三方 AgentRunner 插件实现。
外部 harness runner 的边界统一见 HOST_SDK §4.8。简言之:harness native permission mode、allowed/disallowed tools、shell/MCP 权限只是额外执行约束,不能替代 Host 对 LangBot 资源的授权。
> 发布级路径隔离、MCP allowlist、secret redaction、配额、workspace 清理等**不属于** v1 协议闭环,是生产默认启用前的 release gate,见 [SECURITY_HARDENING.md](./SECURITY_HARDENING.md)。
## 12. Pipeline Adapter 边界
Pipeline 是当前入口 adapter,不是协议中心。目标产品模型中 Agent 会替代
Pipeline 承载 runner config、resource policy 和 delivery policy;当前 Query
entry adapter 只是迁移桥。它负责:
-`Query` 构造 `AgentEventContext` 和临时 `AgentBinding`(见 HOST_SDK §4.2)。
- 从当前 Agent/runner config 构造 `ctx.config`
- 将 Query-only 字段放入 `ctx.adapter`,例如 filtered params 放 `ctx.adapter.extra["params"]`
约束:
- adapter **不**定义历史窗口、prompt 组装或 agentic context 策略。
- `ctx.adapter.extra` 只允许承载一次性、JSON-safe、入口相关的非核心元数据,例如 `params`;不得承载 `prompt`、history window、RAG 结果、tool schema 或授权资源。
- 静态绑定 prompt 属于 `ctx.config.prompt`。preprocessing / hook 后的动态有效指令不通过 `ctx.adapter.extra` 主动推送;后续如需要保留这类能力,应通过 Host prompt/instruction pull API 暴露(占位见 HOST_SDK §4.8)。
- 新 runner 不应长期依赖 `adapter`,应只依赖 event-first context 和 Host API。
## 13. 已确认约束
- v1 / EBA 主线是 `one event -> one AgentBinding -> one run_id -> one runner`
- 一个 bot / IM channel 在同一时间只绑定一个负责 agentic 处理的 Agent;一个 Agent 可以被多个 bot / channel 复用。
- 如果配置层出现多个匹配 AgentBindingBindingResolver 必须按明确规则选出一个或拒绝配置,不应默认 fan-out。
- observer agent、多 runner fan-out、并行裁决、result 合并等能力需要单独设计 delivery、state、platform action 和 audit 语义,不属于当前 v1 契约。
- `AgentRunnerDescriptor.source` 只允许 `plugin`Host 内置 adapter 不能作为 runner source 绕过插件/runtime/proxy 权限链。
- `ctx.resources` 与 proxy action 校验必须来自同一个 run authorization snapshotruntime handler 不应重新执行资源裁剪。
- v1 不要求 Agent、AgentRunner 插件实例或 runner id 全局串行。多个 bot / channel 可复用同一个 Agent;并发隔离依赖 `run_id`、binding、conversation / thread scope 和 Host authorization snapshot。
- 外部 harness runner 当前是 MVP / dev path,证明协议可接入,不代表发布级安全边界或 Docker 生产可用性完成。
## 14. 开放问题
- `AgentBinding` 是否需要进入 SDK 文档作为只读诊断信息,还是完全 Host 内部。
- State 与 Storage 的边界是否需要更强类型。
- platform action 的审批模型如何表达。
- Host 侧 scoped MCP / workspace projection 是否需要从 runner config 上移为一等 resource projection API。(skill 一项已收敛:skill 全 tool 化,作为被授权 tool 暴露,不再是独立 projection。)
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# Agent Runner 插件化文档入口
本文档是 agent-runner 插件化工作的路由页。具体设计拆到独立文档中维护,避免把 LangBot 宿主架构、SDK 协议、上下文管理、EBA 接入边界和官方 runner 迁移混在同一份 README 里。
## 背景与问题
旧 runner 路径主要围绕 Pipeline / Query 和 `pkg/provider/runners` 内置实现展开,扩展外部 agent runtime 时容易把 runner 选择、上下文裁剪、资源授权和消息投递绑在同一条聊天链路里。这个分支要把 LangBot 收敛成 Agent Host:Host 负责事件、绑定、授权、事实源和结果投递;AgentRunner 作为插件或外部 harness 消费统一协议并自主管理 prompt / history / memory。
## 文档维护原则(单一事实源)
- **协议数据结构(schema)唯一定义在 [PROTOCOL_V1.md](./PROTOCOL_V1.md)。** 其他文档不得重抄 schema,只能引用,例如"见 PROTOCOL_V1 §4.2"。
- 当前实现状态、spec 差距与 runner 验收状态归 [STATUS.md](./STATUS.md);测试执行入口归 [AGENT_RUNNER_QA_GUIDE.md](./AGENT_RUNNER_QA_GUIDE.md),安全发布门槛归 [SECURITY_HARDENING.md](./SECURITY_HARDENING.md)。
- Host 内部模型(`AgentEventEnvelope``AgentBinding`、Descriptor、各 Store)定义在 [HOST_SDK_INFRASTRUCTURE.md](./HOST_SDK_INFRASTRUCTURE.md),不属于 SDK 协议。
- 其余专题文档只讲"为什么/边界/怎么用",避免重复叙述。
## 本分支目标
**本分支目标:AgentRunner 外化 / 插件化基础设施**
本分支只做 LangBot 作为 Agent Host 的基础能力建设,为后续用 `Agent`
替代 Pipeline 承载 agent 配置打底:
- LangBot 与 SDK 的稳定协议合同(Protocol v1
- Host-side `AgentEventEnvelope` / `AgentBinding` 模型
- `run(event, binding)` event-first 入口
- `QueryEntryAdapter`Query → AgentEventEnvelope + AgentBinding
- EventLog / Transcript / PersistentStateStore
- History / Event / State pull APIs
- Sandbox/workspace read/write/exec 文件能力,用于当前 run 的上传文件、工具大结果和临时产物
- SDK runtime forwarding pull APIs + `caller_plugin_identity` 验证路径
## 本分支不实现
以下能力由其他分支负责,本分支只保留 integration point。EBA 完整事件网关与事件路由当前由外部 EBA 分支联调:
- **EventGateway / EventRouter**:完整事件网关实现、事件路由、事件持久化管理
- **Event subscription / Event notification**:事件订阅、推送通知
- **BindingResolver persistence UI**:绑定配置的持久化 UI 和 event router 集成(如由其他模块负责)
- **Scheduler / Background event source**:定时任务、后台事件源
- **完整 Agent Platform / daemon control plane**Host-owned `AgentRun` / `AgentRunEvent`、run control primitives、最小 runtime heartbeat/claim lease 已作为 v2 foundation 落地;业务队列、Platform UI、daemon supervisor、runtime wakeup channel 和分布式 runtime 管控仍不属于 Protocol v1 主线。
EventGateway / EventRouter 在本文档中描述为 **external EBA branch integration point**,由外部 EBA 分支提供并联调。本分支只定义 host-side envelope/binding models 和 `run(event, binding)` orchestrator 入口。
本分支与外部 EBA / Agent Platform / Runtime Control Plane 的扩展边界见 [EXTENSION_SCOPE_MATRIX.md](./EXTENSION_SCOPE_MATRIX.md)。
## 目标产品模型
未来产品层应把 `Agent` 理解为 Pipeline 的替代物:原先 bot 绑定 PipelinePipeline 携带 agent/provider/RAG/tool 等配置;后续应改为 bot 或 IM channel 绑定一个 AgentAgent 携带 runner id、runner config、resource/state/delivery policy 等 agent 配置。
调度基数、Agent 复用、插件实例无状态、Pipeline adapter 和 fan-out 边界的规范来源是 [PROTOCOL_V1.md](./PROTOCOL_V1.md) §13;README 不复写这些约束。
## 当前入口关系
**当前 Pipeline 是入口 adapter,不再是 agent runner 设计核心。**
主入口仍可由 Pipeline 触发,但内部已转换成 event-first path`run_from_query()``QueryEntryAdapter``Query` 转换为 `AgentEventEnvelope` + `AgentBinding`,再委托到统一的 `run(event, binding, ...)`。Pipeline path 因此获得了 event-first host capabilitiesEventLog / Transcript / PersistentStateStore 写入,History / Event / State pull API 和 sandbox/workspace 文件读写能力可用)。
下一轮测试路径、状态定义和 smoke 记录见 [AGENT_RUNNER_QA_GUIDE.md](./AGENT_RUNNER_QA_GUIDE.md)。
## 术语表
| 术语 | 含义 |
| --- | --- |
| Protocol v1 | Host 调用 AgentRunner 的 runner 可见合同:discovery、`AgentRunContext`、result stream、Host pull API 和错误模型。 |
| Agent | 目标产品层配置对象,保存 runner id、runner config 和资源/状态/投递策略;不等于插件实例。 |
| AgentConfig | Host 内部迁移期配置投影,由当前 Pipeline config 或未来持久 Agent 生成。 |
| AgentBinding / binding | Host 在一次事件运行前解析出的有效绑定,决定调用哪个 runner 以及带什么策略。 |
| envelope | Host 内部事件封装,即 `AgentEventEnvelope`runner 看到的是由它投影出的 `ctx.event`。 |
| descriptor / manifest | runner discovery 的能力和配置描述;manifest 来自插件,descriptor 是 Host 校验后的注册表视图。 |
| EBA | Event Based Agent,把消息、撤回、入群、定时任务等都统一成 host event 的接入方向;完整网关和路由在外部 EBA 分支联调。 |
| harness runner | ACP、Claude Code、Codex 等已有自身 session / tool loop / MCP / 压缩机制的外部 runtime adapter。 |
| projection | Host 把内部事实源、授权资源或配置裁剪成 runner / harness 可消费视图的过程。 |
| Runtime Control Plane | v2 Host 能力层,当前已落地 Host-owned run/result ledger、run control primitives、最小 runtime heartbeat/claim lease;完整 daemon worker 管控、task wakeup 和 Agent Platform 产品形态不是 Protocol v1 主线。 |
## 设计文档
| 文档 | 关注点 |
| --- | --- |
| [PROTOCOL_V1.md](./PROTOCOL_V1.md) | **🔒 唯一 schema 事实源**。LangBot Host 与 SDK / Runtime / AgentRunner 的协议合同:版本协商、discovery、run context、result stream、proxy actions、错误和 adapter 边界。 |
| [HOST_SDK_INFRASTRUCTURE.md](./HOST_SDK_INFRASTRUCTURE.md) | LangBot 宿主能力与分层架构、Host 内部模型(`AgentEventEnvelope` / `AgentBinding` / Descriptor / 各 Store)、runner 发现、绑定、资源授权、状态、存储、生命周期和调用链。 |
| [AGENT_CONTEXT_PROTOCOL.md](./AGENT_CONTEXT_PROTOCOL.md) | Agent-owned context 方向:事件到来时 LangBot 传什么,agent 如何按需拉取更多历史 / state、如何访问 sandbox/workspace 文件,以及如何支持 KV cache 友好的上下文管理。 |
| [EXTENSION_SCOPE_MATRIX.md](./EXTENSION_SCOPE_MATRIX.md) | AgentRunner 外化与外部 EBA / Agent Platform / Runtime Control Plane 的扩展边界矩阵,说明哪些是本分支底座、哪些由外部分支接入。 |
| [EVENT_BASED_AGENT.md](./EVENT_BASED_AGENT.md) | EBA 接入边界:事件模型、事件来源、触发绑定、非消息事件如何复用 AgentRunner 调度;完整 EventGateway / EventRouter 由外部 EBA 分支联调。 |
| [RUNTIME_CONTROL_PLANE_V2.md](./RUNTIME_CONTROL_PLANE_V2.md) | Agent Platform v2 / runtime 管控面决策:`AgentRun` / `AgentRunEvent` / run control 已作为 Host 事实源落地,最小 runtime heartbeat/claim lease 已落地;完整 runtime registry / daemon 管控仍是后续可选阶段。 |
| [OFFICIAL_RUNNER_PLUGINS.md](./OFFICIAL_RUNNER_PLUGINS.md) | 官方 runner 插件迁移,包括 local-agent 和外部 runner。它是下游落地计划,不是 LangBot 基础能力设计的前置约束。 |
| [RUN_STEERING_AND_CHECKPOINT.md](./RUN_STEERING_AND_CHECKPOINT.md) | 运行中消息注入(steering / follow-up)与压缩摘要持久化(compaction checkpoint)的设计与落地状态记录;schema 仍以 PROTOCOL_V1 为准。 |
| [STATUS.md](./STATUS.md) | 当前实现状态、spec 与实现已知差距、runner 验收状态和历史高价值记录。 |
| [AGENT_RUNNER_QA_GUIDE.md](./AGENT_RUNNER_QA_GUIDE.md) | Agent Runner QA 指南:保留最高价值测试路径,指导 agent 开展下一轮 WebUI / runner smoke 验证。 |
| [SECURITY_HARDENING.md](./SECURITY_HARDENING.md) | 安全发布级 hardening 的后续发布门槛:路径隔离、权限边界、secret、资源配额、MCP / skill 投影和审计。 |
## 工作拆分
### 1. LangBot + SDK 基础设施
目标是把 LangBot 从内置 runner 执行器变成 agent host
- LangBot 与 SDK 的稳定协议合同
- runner manifest / descriptor / registry
- Agent / binding 配置解析
- run orchestration 和生命周期管理
- resource authorization 与 `run_id` 级权限校验
- host-owned state / storage / event log / transcript 能力
- sandbox/workspace 文件 staging 与 read/write/exec 能力
- SDK `AgentRunner``AgentRunContext``AgentRunResult``AgentRunAPIProxy`
协议合同详见 [PROTOCOL_V1.md](./PROTOCOL_V1.md)。
详见 [HOST_SDK_INFRASTRUCTURE.md](./HOST_SDK_INFRASTRUCTURE.md)。
### 2. Agent-owned context
LangBot 不应成为最终 agentic context manager。它应提供事实源、默认上下文引用和按需读取 API;agent 或其背后的 runtime 负责历史剪裁、摘要、召回和 KV cache 策略。
Host 不定义通用历史窗口字段或策略;runner 通过 Host pull API 按需拉取历史并自行管理 working context。
详见 [AGENT_CONTEXT_PROTOCOL.md](./AGENT_CONTEXT_PROTOCOL.md)。
### 3. Event Based AgentExternal Branch
消息只是事件的一种。外部 EBA 分支中的 `message.received``message.recalled``group.member_joined``friend.request_received` 等事件都应能通过统一事件 envelope 触发 AgentRunner。
EBA dispatch 的基数和 fan-out 边界仍以 PROTOCOL_V1 §13 为准;本文档只列出本分支提供给外部 EBA 分支复用的入口点。
**本分支不实现 EBA 完整能力,只提供:**
- event-first envelope (`AgentEventEnvelope`)
- AgentBinding model
- `run(event, binding)` 入口
- QueryEntryAdapter(当前 AgentEventEnvelope / AgentBinding 的 Query entry adapter source
详见 [EVENT_BASED_AGENT.md](./EVENT_BASED_AGENT.md)。
### 4. 官方 runner 插件
官方 `local-agent` 和外部 runner 迁移是下游工作。它们需要依附 LangBot 提供的宿主能力,但不应反过来决定宿主协议。
`local-agent` 可以外移,也可以重写。验收重点是它能完整消费 LangBot 的模型、工具、知识库、存储、事件、history API 和 result stream,而不是保留旧内置 runner 的内部结构。
详见 [OFFICIAL_RUNNER_PLUGINS.md](./OFFICIAL_RUNNER_PLUGINS.md)。
### 5. Runtime Control Plane v2Foundation Partial
当前 AgentRunner v1 主线仍以 `event -> binding -> runner.run(ctx) -> result stream` 为 runner 可见合同。Host 侧已经新增持久 `AgentRun` / `AgentRunEvent`、result persistence、cancel/finalize/query 等通用 run control primitives,并提供受权限保护的最小 runtime register/heartbeat/list、claim/renew/release 和 reconcile 原语。
在这些 Host 能力之上,可以构建独立 agent 管控面插件;插件负责 UI、策略和编排体验,runtime/task 的事实源仍由 Host 持有。完整 daemon supervisor、任务唤醒/长轮询/WebSocket、跨 Host 分布式锁、provider 登录态诊断和产品化业务队列仍是后续工作。
详见 [RUNTIME_CONTROL_PLANE_V2.md](./RUNTIME_CONTROL_PLANE_V2.md)。
## 约束事实源
本分支已确认约束不在 README 重写:
- Runner 可见协议、result stream 和调度边界见 [PROTOCOL_V1.md](./PROTOCOL_V1.md)。
- Host 内部 `AgentConfig` / `AgentBinding` 投影见 [HOST_SDK_INFRASTRUCTURE.md](./HOST_SDK_INFRASTRUCTURE.md)。
- 外部 EBA / Agent Platform / Runtime Control Plane 接入边界见 [EXTENSION_SCOPE_MATRIX.md](./EXTENSION_SCOPE_MATRIX.md)。
@@ -0,0 +1,541 @@
# Agent Platform / Runtime Control Plane Decision Note
本文档记录 AgentRunner 插件化之后,LangBot 如何继续演进成 Agent Platform 基础设施层。这里讨论的是 Host capability layer,不是 `AgentRunner Protocol v2`,也不是把某个具体 Agent Platform 产品写进 LangBot core。
> 本文是当前决策版。协议数据结构仍以 [PROTOCOL_V1.md](./PROTOCOL_V1.md) 为准;测试执行入口见 [AGENT_RUNNER_QA_GUIDE.md](./AGENT_RUNNER_QA_GUIDE.md);扩展边界见 [EXTENSION_SCOPE_MATRIX.md](./EXTENSION_SCOPE_MATRIX.md)。
>
> 实现状态说明:本文描述的是 Runtime Control Plane v2 的目标能力和分阶段落地建议。当前 AgentRunner 插件化主线已经具备 event-first context、run-scoped authorization、EventLog / Transcript / State / sandbox 文件等 Host capability,并已落地持久 `AgentRun` / `AgentRunEvent` ledger、run control actions、最小 runtime heartbeat/claim lease 和 admin reconcile 原语。完整 Agent Platform 产品形态、daemon supervisor、runtime wakeup channel 和分布式 runtime 管控仍未完成。当前实现状态以 [STATUS.md](./STATUS.md) 为准。
## 1. 当前决策
LangBot 后续定位应更像 **Agent Host / infrastructure provider / transfer layer**,而不是把某个完整 Agent Platform 产品固化进 core。
结论:
- **Agent Platform 产品形态做成插件**。插件负责 agent 管理、策略、业务队列、UI、编排、多 agent 协作和产品体验。
- **Agent Platform 所需的基础事实源做进 Host**。当前 Host 已保存 event、state、transcript、sandbox 文件边界、active run 权限快照、持久 run/result ledger、审计关联和通用控制状态。
- **最小 runtime registry / heartbeat / claim lease 已作为 Host 原语落地,但不等于完整 daemon worker 管控**。远程 harness / daemon 的进程托管、wakeup channel、provider 登录态诊断和分布式调度仍可以先由 AgentRunner 插件和 SDK remote layer 自己维护。
- **不把业务调度写进 Host**。Host 提供通用 run/result/control primitivesPlatform 插件决定哪些事件触发哪些 agent、如何排队、如何分配、是否 fan-out。
推荐分层:
```text
LangBot Host
Current base: EventLog / runtime AgentBinding / State / Transcript / sandbox files / active run authorization
Current v2 foundation: Run / RunEvent / audit / result persistence / control primitives / minimal runtime heartbeat and claim lease
Planned: Agent / Binding persistence / daemon supervisor / wakeup channel / distributed runtime operations
Agent Platform plugin
Agent management UI / project-task model / event routing policy
Business queue / multi-agent orchestration / runtime selection policy
AgentRunner plugin / external harness runtime
Connects ACP / remote daemon / local subprocess / HTTP API
Executes and converts provider-native events to AgentRunResult
```
## 2. Platform 与非 Platform 的区别
当前 LangBot 已经具备 Agent Host 的核心特征:
- 抹平不同 AgentRunner。
- 从 IM / Pipeline 入口触发 runner。
- 有 event-first context 方向。
- 有 Host-owned EventLog / Transcript / State 和 sandbox/workspace 文件边界。
- 有 runner config 下发和 active run-scoped authorization。
-`run_id` 串联 event、transcript、state、sandbox 文件和内存授权上下文。
这还不是完整 Agent Platform。完整 Platform 至少还需要:
- 可管理的 agent 资产:agent profile、binding、resource policy、runner config、可用状态。
- 可观察的执行生命周期:run status、result stream、失败原因、文件引用、审计、回放。
- 可运营的控制面:取消、重试、排队、并发、超时、恢复、诊断。
- 可产品化的调度体验:事件订阅、路由策略、任务板、多 agent 协作、项目/工作区视图。
因此,区别不只是“有没有调度”,而是是否具备:
```text
managed agent assets + observable run lifecycle + operational run control
```
Host 负责这些能力的通用事实源和安全边界;Platform 插件负责把它们组装成具体产品。
### 2.1 当前实现边界
当前代码中的 `run_id` 已经连接 active run 授权、持久 run ledger 和多个 Host 事实源:
- `EventLog` 保存输入事件和审计入口,并记录 `run_id` / `runner_id`
- `Transcript` 保存对话历史投影,并用 `run_id` 关联 assistant 输出。
- Sandbox/workspace 保存当前运行输入文件和 runner 产物,并用 `run_id` 做访问边界的一部分。
- `PersistentStateStore` 保存 runner state,但不等同于 run lifecycle。
- `AgentRunSessionRegistry` 保存 active run 的内存态授权快照,用于 proxy action 校验;进程结束或 run 结束后不作为可回放事实源。
- `AgentRun` 保存 run lifecycle、scope、authorization snapshot、queue/claim 状态、cancel intent、usage/cost 和 metadata。
- `AgentRunEvent` 保存 runner/result/admin event stream,按 `run_id + sequence` 做可回放分页。
- `AgentRuntime` 保存最小 runtime registry / heartbeat 事实,用于 runtime list、stale mark 和 claim lease reconcile。
因此本文后续提到的 `AgentRun` / `AgentRunEvent``run_append_result``run_finalize``run_cancel``runtime_register``runtime_heartbeat``run_claim` 等基础原语已经存在。仍未完成的是独立 platform `run_create` action、Host-owned Agent / Binding 持久模型、业务队列产品形态、daemon supervisor、runtime wakeup channel、跨 Host 分布式锁和 provider/runtime 诊断面。
## 3. 基础概念
### 3.1 Event
Event 表示“发生了什么”:
```text
message.received
github.issue.opened
scheduler.tick
user.approved
system.webhook.received
```
EBA 负责把外部输入标准化成 event。Event 本身不是 queue,也不等同于一次 agent 执行。当前 `EventLog` 记录的是输入事件和审计事实;未来 `AgentRunEvent` 记录的是某次 run 的输出事件流,二者不能混用。
### 3.2 Run
Run 表示“某个 agent / binding / runner 针对某个 event 的一次执行”。
Run 应由 Host 持久化,成为执行状态、结果、权限和审计的事实源:
```text
run_id
event_id
agent_id / binding_id
runner_id
status
created_at / started_at / finished_at
error / failure_reason
delivery target
metadata
```
当前 `AgentRunSessionRegistry` 只保存 active run 的内存态授权信息,不足以支撑 Platform 的回放、审计、取消、重试和异步执行。
### 3.3 RunEvent / RunResult
RunEvent 是一次 run 过程中产生的结果事件流,对应 runner 返回的 `AgentRunResult`。它不同于 EBA/EventLog 的输入事件:
```text
message.delta
message.completed
tool.call.started
tool.call.completed
state.updated
action.requested
run.completed
run.failed
```
Host 应保存这些输出事件,按 `run_id + sequence` 可回放。Transcript、State 可以由这些 result event 触发写入现有 store,并保留能回溯到 `AgentRunEvent` 的关联。文件和工具大结果留在当前 run 的 sandbox/workspace 中,不作为 result event blob 回传。
### 3.4 Queue
Queue 不是 EBA 的替代品。
EBA 负责产生 eventqueue 负责处理“这个 event 对应的执行 work item 何时执行、谁来执行、如何取消/重试/恢复”。
队列可以分两层:
- **业务队列**:由 Platform 插件管理,例如项目任务、优先级、agent team、workflow、人工审批。
- **执行队列 / run queue**:可选 Host 原语,例如 queued / running / completed / failed / cancelled、claim lease、dispatch timeout、orphan recovery。
第一阶段不要求 Host 内置完整执行队列。Platform 插件可以先管理业务队列;在 Phase 1 / Phase 2 能力落地前,插件仍只能通过现有 `AgentRunOrchestrator.run(...)` 同步执行路径和现有 Host stores 获得有限的 run 关联能力。
### 3.5 Runtime / Daemon
Runtime / daemon 表示执行位置或执行能力,例如某台机器上的 Claude Code / Codex CLI。
当前决策:
- Host 不在第一阶段维护完整 runtime registry。
- AgentRunner 插件可以通过 SDK remote layer 与 daemon 保持连接、心跳和执行通道。
- 外部 harness / agent 不应直接访问 LangBot Host 或数据库。访问 LangBot 资源必须通过 daemon / AgentRunner plugin / SDK runtime / `AgentRunAPIProxy` / scoped MCP bridge,并接受 run-scoped authorization 校验。
- 如果后续多个插件都需要共享 runtime 状态,再把薄的 `RuntimeLease` / registry 下沉为 Host 通用能力。
## 4. Host 应新增的最小能力
第一阶段最重要的不是 daemon registry,而是让 Host 成为 run/result 的事实源。
### 4.1 AgentRun Store
新增持久 `AgentRun`
```text
id / run_id
event_id
agent_id
binding_id
runner_id
conversation_id / thread_id
workspace_id / bot_id
status
status_reason
created_at / started_at / finished_at / updated_at
deadline_at
cancel_requested_at
usage_json
cost_json
metadata_json
```
建议 status 至少包含:
```text
created
running
completed
failed
cancelled
timeout
```
如果后续加执行队列,再引入:
```text
queued
claimed
dispatching
```
### 4.2 AgentRunEvent Store
新增持久 `AgentRunEvent`
```text
id
run_id
sequence
type
data_json
usage_json
created_at
source
metadata_json
```
约束:
- 同一 `run_id``sequence` 单调递增。
- append 必须幂等,支持远程 daemon / plugin 重试。
- 未知 result type 可保存但 Host 只对已知类型执行副作用。
- 大 payload 仍应进入 sandbox/workspace,不直接塞入 result event。
- `usage_json` 保存 `AgentRunResult.usage` 原样结构;缺失表示 unknown,不等于 0。
### 4.3 Run Control API
Host 提供通用控制原语:
```text
run.create
run.get
run.list
run.events.page
run.cancel
run.append_result
run.finalize
```
语义:
- `run.create` 创建 Host-owned run 和授权快照。
- `run.append_result` 只允许受信 SDK/runtime 路径调用,必须绑定 run 创建时固化的授权快照,写入 `AgentRunEvent` 并触发 transcript/state/delivery 副作用。
- `run.finalize` 关闭 run,更新 terminal status。
- `run.cancel` 设置取消意图;同步 runner 通过 context/deadline 感知,远程 runner 通过插件/daemon 通道感知。
第一阶段可以只暴露给插件 runtime action,不一定先做公开 HTTP API。
### 4.4 Result Persistence In Orchestrator
当前 `AgentRunOrchestrator.run()` 已经处理:
```text
event -> binding -> context -> runner invocation -> result normalization
```
需要补齐:
- run 开始时创建 `AgentRun`
- 每个 `AgentRunResult` 进入 `AgentRunEvent`
- `run.completed` / 正常 generator 结束时标记 completed。
- `run.failed` / exception / timeout 标记 failed 或 timeout。
- terminal result 携带 usage 时,写入 `AgentRunEvent.usage_json` 并汇总到 `AgentRun.usage_json`
- `state.updated`、transcript 写入继续走现有 journal,但应与 `AgentRunEvent` 有可追踪关系。
### 4.5 Usage / Cost Accounting
SDK 侧 `AgentRunResult` 已提供可选 `usage` 字段,用于把不同 runner / external harness / provider-native event 的 token usage 归一到同一个 run result envelope。
语义:
- `run.completed.usage` SHOULD 表示本次 run 的最终聚合 token usage。
- `run.failed.usage` MAY 表示失败前已知的部分 token usage。
- 没有 usage 表示 upstream runtime 没有报告或 adapter 暂未接入;Host 不得按 0 计费或按 0 判断上下文消耗。
- Host 应把 event-level usage 原样写入 `AgentRunEvent.usage_json`,并在 terminal event 或 finalize 阶段汇总到 `AgentRun.usage_json`
- cost 应由 Host 根据 usage、runner/model identity、发生时间和价格表计算,写入 `AgentRun.cost_json`runner/provider 上报的 cost 只能作为非权威 telemetry 保留在 metadata 或 usage extra 中。
这层约束先解决协议位置和持久化位置;具体 ACP、remote daemon、local subprocess runner 如何从 native event 中抽取 usage,可在各插件后续适配。
### 4.6 Authorization Snapshot
异步或远程执行时,run 创建时必须固化授权快照:
- runner identity
- binding identity
- caller plugin identity
- resource policy
- allowed tools/models/files/knowledge bases/storage scopes
- state scopes
- conversation/thread/workspace scope
后续 append result、state API、history API 和 sandbox/workspace 文件访问都以这个 snapshot 校验,不重新扩大权限。
## 5. SDK 侧应新增的最小能力
SDK 不需要马上定义完整 daemon registry,但需要让插件和 runner 使用 Host run/result 能力。
### 5.1 Entities
新增或补齐:
```text
AgentRun
AgentRunStatus
AgentRunEvent
RunEventPage
RunCreateRequest / RunCreateResult
RunAppendResultRequest
```
这些是 Host control primitives,不替代 `AgentRunContext` / `AgentRunResult`
### 5.2 Proxy Methods
在 SDK proxy 中提供:
```python
create_run(...)
get_run(run_id)
list_runs(...)
page_run_events(run_id, cursor=None, limit=...)
cancel_run(run_id)
append_run_result(run_id, result, sequence=None)
finalize_run(run_id, status, error=None)
```
访问边界:
- 普通 AgentRunner 在同步 `run(ctx)` 内不一定需要直接调用这些 APIHost orchestrator 可自动记录。
- Platform 插件可以创建/查询/取消 run。
- AgentRunner 插件或 daemon bridge 可以 append/finalize 自己负责的 run。
- 外部 harness 仍不能直接调用 Host;必须经 SDK runtime / proxy / bridge。
### 5.3 Plugin-Daemon Heartbeat
远程 daemon 的初始心跳可以是 SDK / AgentRunner plugin 私有能力:
```text
daemon <-> AgentRunner plugin / SDK remote layer <-> LangBot plugin runtime <-> Host
```
Host 第一阶段只需要知道:
- 相关插件是否在线。
- run 是否有 progress/result。
- run 是否超时或取消。
如果后续需要跨插件共享 daemon 可用性,再把 heartbeat/registry 下沉为 Host 能力。
## 6. Platform 插件应负责什么
Agent Platform 插件可以负责:
- 管理哪些 agent 可用。
- 维护产品层 agent profile、项目、任务板、workflow、team。
- 订阅 EBA event,决定哪些 event 触发哪些 agent。
- 维护业务 queue:优先级、重试策略、人工审批、分配规则。
- 选择 runner / runtime / daemon。
- 在 Run Control API 落地后,调用 Host run API 创建、取消、查询执行。
- 展示 run status、result stream、文件引用、失败原因和审计。
Platform 插件不应负责:
- 在 Host Run Ledger 落地后,私有保存通用 run/result 事实源。
- 绕过 Host 直接写 transcript/state 或越权访问 sandbox/workspace 文件。
- 让外部 harness 直接访问 LangBot DB 或 Host 内部资源。
- 把某个业务队列语义强塞进 AgentRunner Protocol v1。
## 7. 与 EBA 的关系
EBA 做好后,事件流可以进入两种路径。
直接执行路径:
```text
EventGateway
-> EventRouter resolves AgentBinding
-> AgentRunOrchestrator.run(event, binding)
-> Host records AgentRun / AgentRunEvent (after Run Ledger lands)
-> delivery
```
Platform 插件编排路径:
```text
EventGateway
-> Platform plugin receives/subscribes event
-> plugin applies policy / business queue
-> plugin creates Host run (after Run Control API lands)
-> runner/plugin/daemon executes
-> Host records result and state
-> plugin displays / Host delivers
```
这两条路径最终应共享 Host run/result/state 事实源和 sandbox/workspace 文件边界。当前阶段可共享的是 event/transcript/state、sandbox 文件和同步执行链路;持久 run/result ledger 需要 Runtime Control Plane v2 Phase 1 补齐。区别在于是否有 Platform 插件参与产品化调度和业务队列。
## 8. 与 AgentRunner Protocol v1 的关系
本设计不改变 v1 的 runner 可见合同:
```text
AgentRunContext -> AgentRunner.run(ctx) -> AgentRunResult stream
```
必须保持:
- `AgentRunContext` 不塞入 daemon/worker/pod 细节。
- `AgentRunResult` 仍是 runner 输出的统一事件流。
- 普通 runner 不需要知道 task queue / runtime registry。
- 远程 harness 可以自管 session、tool loop、MCP、上下文压缩,但访问 LangBot 资源必须通过 SDK proxy / bridge。
- Runtime-managed execution 是 placement / transport 选择,不是普通 runner 协议的强制概念。
## 9. 分阶段实施建议
### Phase 1: Run LedgerFoundation Implemented
目标:Host 成为执行状态和结果事实源。
范围:
- `AgentRun` 表。
- `AgentRunEvent` 表。
- Orchestrator 自动创建/更新 run。
- Journal 持久化每个 `AgentRunResult`
- Run 查询和事件分页 API。
- SDK entities + proxy 方法。
复杂度:中等。
预计改动:
```text
Host: 12-20 个文件
SDK: 4-8 个文件
Tests: 8-15 个文件
```
### Phase 2: Platform Plugin Queue On Host Run PrimitivesControl Primitives Partially Implemented; Product Queue Pending
目标:Platform 插件管理业务 queueHost 提供 run/result/cancel 原语。
范围:
- `run.create`
- `run.cancel`
- `run.append_result`
- `run.finalize`
- result append 的 sequence/idempotency。
- 受权限保护的远程 append/finalize。
- Platform 插件可基于 Host run 构建任务板和调度体验。
复杂度:中等偏高。
预计改动:
```text
Host: 20-35 个文件
SDK: 8-14 个文件
Tests: 15-25 个文件
```
### Phase 3: Optional Host Execution Queue / Claim LeaseClaim Lease Primitive Implemented; Full Queue Pending
目标:当多个插件重复实现 claim/cancel/retry/recovery 时,再下沉执行队列到 Host。
范围:
- `queued/running/completed/failed/cancelled` 状态机扩展。
- `claim_run` / `lease_until`
- dispatch timeout。
- retry / orphan recovery。
- cancel propagation。
- 并发 claim 防重。
复杂度:高。
预计改动:
```text
Host: 35-55 个文件
SDK: 12-20 个文件
Tests: 25-40 个文件
```
### Phase 4: Optional Runtime RegistryMinimal Registry Implemented; Full Daemon Control Pending
目标:当 Host 需要统一管理多个 daemon / worker 时,再引入 runtime registry。
范围:
- runtime register / heartbeat / deregister。
- capability reportprovider、version、login status、workspace access、slot。
- runtime online/offline。
- runtime scoped auth。
- runtime audit。
- runtime gone recovery。
- task wakeup / long polling / websocket。
- 多 Host 实例下的 relay / distributed lock。
复杂度:很高。
预计改动:
```text
Host: 55-80+ 个文件
SDK: 18-30 个文件
Tests: 40+ 个文件
```
不建议现在直接进入此阶段。
## 10. 设计原则
- 先把 run/result 事实源做进 Host,再谈完整 runtime control plane。
- Agent Platform 产品做插件;Host 做基础设施。
- Host 不写业务调度策略,但要保存通用状态、结果、权限和审计。
- EBA event 不是 queuequeue 是执行生命周期问题。
- 业务 queue 可以先在 Platform 插件里;执行 queue 只有在复用需求明确后再下沉 Host。
- Daemon registry 不应污染 AgentRunner Protocol v1。
- 外部 harness 不直接访问 LangBot Host 或 DB。
- 所有 LangBot 资源访问必须走 SDK runtime / `AgentRunAPIProxy` / scoped MCP bridge。
- Docker / remote / local subprocess 只是 runtime placement,不是 runner 协议差异。
## 11. 非目标
当前阶段不做:
- 完整 Multica 式 runtime registry。
- Host 内置项目管理、任务板、agent team、workflow 产品逻辑。
- 把 daemon heartbeat / worker liveness 放进 `AgentRunContext`
- 把业务 queue 定义为 AgentRunner Protocol 字段。
- 让 Platform 插件私有保存 run/result 事实源。
- 让外部 agent/harness 直连 Host 内部资源。
## 12. 待定问题
- Host 是否需要最小持久 `Agent` / `Binding` 模型,还是继续由 Pipeline / Platform 插件投影运行期 `AgentBinding`
- Platform 插件创建 run 时,是否传完整 `AgentBinding` snapshot,还是引用 Host-owned binding id。
- `AgentRunEvent` 与现有 `EventLog` / `Transcript` 的查询关系:直接 join,还是通过专门 view 聚合。
- `run.append_result` 的认证粒度:runner plugin identity、run token、scoped capability token,或 SDK runtime 内部 channel。
- 取消语义:同步 runner、external harness runtime/session 如何统一感知 cancel。
- 何时把插件私有 daemon heartbeat 提升为 Host `RuntimeLease`
- 若未来 Host 做 claim leasePlatform 插件业务 queue 与 Host execution queue 如何避免双队列混乱。
@@ -0,0 +1,154 @@
# Run Steering 与 Compaction CheckpointDesign Note
本文档记录两项 Host/runner 协作能力:**运行中消息注入(steering / follow-up**和
**压缩摘要持久化(compaction checkpoint**。两者来自官方 local-agent 对照
Pi agent harness`pi-mono/packages/agent`,下称 pi-agent-core)的差距分析:
local-agent 已移植 Pi 的事件生命周期、并行工具语义、hook 扩展点和压缩预算模型,
这两项需要 Host 协议、授权与 runner turn 边界协同才能闭环。
> 本文是设计备忘,不是 schema 事实源。涉及的数据结构最终落到
> [PROTOCOL_V1.md](./PROTOCOL_V1.md);上下文边界语义以
> [AGENT_CONTEXT_PROTOCOL.md](./AGENT_CONTEXT_PROTOCOL.md) 为准;
> run 持久化与控制原语以 [RUNTIME_CONTROL_PLANE_V2.md](./RUNTIME_CONTROL_PLANE_V2.md) 为准。
## 1. Run Steering / Follow-up(运行中消息注入)
### 1.1 问题
IM 场景下用户在 agent 运行中追加消息非常常见(补充信息、纠正方向、"算了别查了")。
当前主线是 `one event -> one AgentBinding -> one run_id -> one runner`
PROTOCOL_V1 §13):同会话的新消息要么等待当前 run 结束后触发新 run,
要么并发触发独立 run。两种行为都无法把新消息送进**正在执行的 tool loop**
用户体验是"agent 自顾自跑完过期任务,然后才看到新消息"。
cancelPROTOCOL_V1 §10)不解决这个问题:cancel 丢弃已完成的工作;
steering 是在保留当前进度的前提下改变后续方向。
### 1.2 Pi 的参考语义
pi-agent-core 区分两个队列,注入时机都在 turn 边界,不打断进行中的模型流或工具执行:
- **steering**:运行中插入。当前 assistant 消息的全部 tool call 完成后、
下一次模型调用前,注入排队的用户消息;模型在下一 turn 看到它们。
- **follow-up**:排队后续工作。仅当没有 pending tool call 且没有 steering 消息、
run 即将自然结束时检查;若有排队消息则注入并继续下一 turn,而不是结束 run。
两个队列各自支持 `one-at-a-time`(每次注入一条)和 `all`(一次注入全部)模式。
### 1.3 设计方向
职责划分遵循既有原则:Host 拥有事件路由和会话事实源,runner 拥有 turn 边界。
- **Host 侧**BindingResolver / dispatch 层识别"同 conversation 存在 active run
且 runner 声明支持 steering"的新消息事件,将其写入 run-scoped steering queue
并标记该事件已被在途 run 认领(不再触发新 run,避免破坏 §13 的基数约束)。
事件仍照常进 EventLog / Transcript(事实源不变,改变的只是触发行为)。
- **Runner 侧**:在 turn 边界(tool batch 完成后、下一次模型调用前,以及 run
即将自然结束前)通过 run-scoped pull API 拉取 pending steering 输入,
注入 working context。local-agent 的 `AgentLoopHooks.prepare_next_turn` /
`should_stop_after_turn` 已预留了对应的注入点。
- **能力协商**runner manifest 声明 `steering` capability(参照 PROTOCOL_V1 §4.3);
未声明的 runner 保持现状(新消息按现有规则另起 run)。
- **回执**:被 steering 消费的事件通过 EventLog 审计。原始 `message.received`
记录在 `metadata.steering` 标记 queued/absorbed 与 `claimed_by_run_id`
runner 成功 pull 后,Host 追加 `steering.injected` 记录并引用源事件。
run 结束时仍未被 pull 的已 claim 输入,Host 追加 `steering.dropped` 记录作为
dispatch 终态;原始 Transcript 事实不删除。
Transcript 继续只表示会话事实,不扩展 dispatch 行为字段。
已落地的协议面(最终定义归 PROTOCOL_V1):
1. `ContextAccess.available_apis` 增加 steering pull 能力位。
2. `AgentRunAPIProxy` 增加 steering 拉取 action:默认 `mode=all`Host 保序返回全部
pending 输入;`one-at-a-time` 仅作为 runner 主动节流选项。
3. dispatch 层的"认领"规则:`message.received` 可被同 conversation 的 active run
吸收,原事件写 EventLog / Transcriptdispatch 行为写入 EventLog metadata。
4. Host 对单 run steering queue 设置内存上限,队列满时不再 claim 新消息,消息回到
正常 dispatch 路径,避免 active run 无限吞入同会话输入。
### 1.4 边界
- 不引入 Host 替 runner 做 prompt 拼接:Host 只递队列,注入位置和格式由 runner 决定。
- 不与 observer / fan-out 混淆:steering 仍是单 run 内的输入补充,不产生第二个 runner。
- 远程 / 外部 harness runnerclaude-code、codex 等)若其底层 session 自带
steering 能力,adapter 可以直接转发;协议面保持一致。
## 2. Compaction Checkpoint 持久化
### 2.1 问题
local-agent 当前是无状态 runner:每次 run 重新拉取 transcript 尾部
(默认 50 条)、重新估算 token、重新生成压缩摘要。后果:
- 长会话中每 run 重复压缩计算,摘要每次重新生成,不同 run 之间措辞漂移,
对 provider KV cache 不友好(AGENT_CONTEXT_PROTOCOL §"Summary checkpoint 稳定"
已写明期望:只有压缩发生时才产生新 checkpoint)。
- 历史一旦超过 fetch limit,更早的内容永久不可见——没有 checkpoint 记录
"已压缩到哪里、压缩出了什么"。
pi-agent-core 把 compaction 条目持久化进 session tree:摘要带
`tokensBefore` 和覆盖范围,后续 turn 直接复用,只在再次越过阈值时增量压缩。
### 2.2 现状盘点
协议面和主消费路径已具备:
- State / Storage API 已定义(PROTOCOL_V1 §8 "State / Storage"),
且 AGENT_CONTEXT_PROTOCOL 已点名 `summary.checkpoint` 是 state 的预期用法。
- Host 会根据 binding state policy 暴露 `ContextAccess.available_apis.state`
- local-agent 会在 state API 可用时读取/写入 `runner.compaction.checkpoint`
缺失、schema 不匹配、conversation 不匹配或游标失败时回退尾部历史拉取。
- LLM 生成摘要**不依赖**本项 Host 能力——runner 用已授权的 `invoke_llm`
即可生成;checkpoint 只解决"存下来、下次复用"。
### 2.3 设计方向
- **存放位置**statescope=`conversation`(小 JSON,符合 PROTOCOL_V1 §8
对 state/storage 的边界建议)。若未来摘要膨胀,超出部分放 storage 并在
state 中留引用。
- **key 约定**`runner.compaction.checkpoint`runner 命名空间内)。
- **内容约定**schema 落 PROTOCOL_V1 或 runner 文档,此处只列语义):
- `schema_version`
- `summary`:压缩摘要文本(LLM 生成或确定性生成)
- `covers_until`:已被摘要覆盖的 transcript 游标(seq / message id),
是增量压缩和"从哪继续拉历史"的锚点
- `tokens_before` / `created_at`:诊断与失效判断
- **消费流程**run 开始时读 checkpoint → 只拉取 `covers_until` 之后的
transcript → 压缩触发时基于旧摘要增量生成新摘要、写回新 checkpoint。
checkpoint 缺失或解析失败时回退到现行为(全量拉尾部),保证向后兼容。
- **失效规则**`covers_until` 在 Host transcript 中不存在(会话被清理 / 重置)
即作废;runner 不得信任跨 conversation 的 checkpoint。
- **授权**Host 对声明需要 state 的 runner binding 开启
`available_apis.state`;校验沿用现有 run-scoped state 校验
scope、key、value 大小、JSON 可序列化,见 PROTOCOL_V1 §7.2 对
`state.updated` 的要求)。
### 2.4 相关但独立的工作
- **tokenizer / usage metadata 透传**runner 目前用 chars/4 启发式估 token
对 CJK 偏低 3-4 倍,压缩触发系统性偏晚。Host 应在模型响应或
`ctx.runtime.metadata` 透传 provider usageprompt/completion tokens)与
model context windowLiteLLM model-info 工作)。该项不阻塞 checkpoint
落地,但决定压缩触发的准确性。
## 3. 实施拆分
| 项 | 归属 | 依赖 |
| --- | --- | --- |
| steering queue、事件认领、基础审计 | LangBot Hostdispatch / binding 层) | 已落地,含队列上限与未消费 dropped 终态 |
| steering pull API + capability 位 | PROTOCOL_V1 + SDK proxy | 已落地 |
| turn 边界拉取与注入 | langbot-local-agent | 已落地 |
| local-agent 对 state API 的 checkpoint 读写 | langbot-local-agent | 已落地 |
| checkpoint key / 内容 / 失效约定 | PROTOCOL_V1 + local-agent README | 已落地 |
| LLM 压缩摘要生成 | langbot-local-agent | 已落地(`invoke_llm`,失败回退确定性摘要) |
| usage / context-window metadata 透传 | LangBot Hostmodel 层) | LiteLLM model-info |
剩余工作应优先补 usage / context-window metadata。streaming delivery 衔接依赖
`ctx.delivery` 编辑/追加语义,不建议在协议能力缺失时硬编码。
## 4. 开放问题
- streaming delivery 下 steering 注入后,前序 turn 已流出的内容与新 turn
输出在 IM 消息编辑面的衔接(涉及 `ctx.delivery` 能力,待 delivery 演进定)。
- checkpoint 是否需要 Host 侧主动失效通知(如会话清空时删除对应 state key)。
当前实现靠 runner 读取时校验并回退,功能不阻塞。
@@ -0,0 +1,211 @@
# Agent Runner Security Boundary
本文档记录 agent-runner 插件化后的安全边界和最小护栏。
## 状态
**当前结论:不采用高强度监管模型。**
LangBot 的目标不是托管一个强隔离、不可信 code runner 平台。AgentRunner 插件,尤其是 ACP / Claude Code / Codex / OpenCode / Kimi Code 这类外部 harness,默认视为 **operator-owned execution**:用户或部署者显式配置并承担其文件系统、进程、网络、workspace、provider 登录态和 native tool 风险。
LangBot 需要负责的是保护 **LangBot 自己持有的资源**,包括模型、知识库、LangBot tools、history、event、state、plugin/workspace storage、sandbox/workspace 文件访问等。只要这些资源访问是 run-scoped、permission-scoped、可校验、可诊断的,当前阶段即可接受。
这意味着:
- 不要求 LangBot 在应用层实现完整 OS sandbox、VM、cgroup、seccomp、CPU / memory / network quota。
- 不要求为 ACP runner 做复杂审批流;用户选择 ACP runner 即表示显式 opt-in。
- 不要求在非 Docker 进程部署里做强监管;只要文档明确风险归属即可。
- Docker / K8s 可以提供部署级隔离,但不是 LangBot agent-runner 协议发布的前置条件。
- 不能宣传 LangBot 已经提供 managed sandbox;除非未来真的提供受管执行环境。
## 责任边界
### LangBot Host 负责
- **资源授权**:根据 runner manifest permissions、binding resource policy、run scope 生成本次 run 可访问的资源快照。
- **运行期校验**:所有带 `run_id` 的 SDK / Host action 必须校验 active run session、caller plugin identity、resource id 和 operation。
- **Scoped projection**:只把授权后的资源摘要、MCP server config、context、attachment/path ref、state snapshot 投影给 runner。
- **LangBot 文件路径约束**LangBot 自己 staged 和读取的文件必须限制在声明 root 内,防止 path escape。
- **基础 secret 策略**:不要主动把 LangBot 持有的 API key / token / secret 投影给 runner;日志和错误里做常见 secret 字段脱敏。
- **基础运行约束**:提供 timeout、取消传播、输出大小限制或错误映射的基础能力。
- **audit-lite**:记录 event、run id、runner id、binding、资源授权摘要、关键失败、state/file/transcript 事实。
### Runner Plugin 负责
- 遵守 Host 下发的 `ctx.resources``ctx.context.available_apis`、runner config 和 state policy。
- 把 LangBot 资源投影成目标平台可消费的形式,例如 MCP config、context prompt、HTTP header、run token。
- 不绕过 SDK / Host action 直接访问 LangBot 内部资源。
- 对自己启动的外部进程做合理封装,包括参数构造、timeout、取消、输出解析和错误映射。
- 清楚记录自身 README 中的 provider 风险、部署假设和限制。
### 部署者 / 用户负责
- ACP / external harness 的 workspace 内容、文件系统访问、进程权限、网络访问、provider-native tool 权限。
- Docker / K8s 的 image、volume、secret、network policy、resource limit、namespace、service account 配置。
- 本机进程部署时的 OS 用户权限、PATH、HOME、CLI 登录态、全局配置和外部 MCP 配置。
- 是否允许 runner 对某个目录执行真实写操作。
### 外部 Harness 负责
Claude Code、Codex、OpenCode、Kimi Code、Gemini CLI 等外部工具继续使用自己的权限模型、MCP 加载策略、session/resume、sandbox 或 approval 能力。LangBot 不承诺约束这些工具对其所在容器或宿主 OS 用户本来可访问资源的能力。
## 部署场景策略
| 场景 | LangBot 策略 | 不由 LangBot 承担 |
| --- | --- | --- |
| 普通进程部署 | 文档提示 operator-owned executionHost 只保护 LangBot 资源。 | 阻止外部 CLI 读取同一 OS 用户可访问的文件、进程、HOME、全局 CLI 配置。 |
| Docker / K8s 部署 | 继续使用相同 Host 资源边界;容器隔离由部署环境提供。 | 应用层重复实现容器/VM/cgroup/seccomp/network quota。 |
| ACP runner | 用户显式选择 runner 和 workspaceLangBot 注入 scoped MCP / run token。 | ACP CLI native tools、workspace 写入、provider 登录态和外部 MCP 行为。 |
| 外部 SaaS runner,例如 Dify | LangBot 通过 run token / gateway 限制 LangBot 资产访问。 | SaaS 平台内部 agent 执行策略、模型工具消息格式、平台侧日志。 |
| 未来 managed runner | 只有当 LangBot 明确提供受管执行环境时,才需要单独定义强隔离 SLA。 | 当前协议闭环不承诺 managed sandbox。 |
## 最小护栏
以下是当前阶段需要维持的最小要求。它们是保护 LangBot 资源边界的要求,不是完整监管外部进程的要求。
### Resource Permission Boundary
每次 run 前必须冻结授权快照:
- runner manifest permissions 是资源访问上限。
- binding resource policy / runner config 决定本次实际授权。
- runtime action 按 `run_id` + `caller_plugin_identity` + resource id + operation 校验。
- manifest permissions 只约束 LangBot 持有资源,不约束 external harness native tools。
当前实现方向是正确的:`AgentRunSessionRegistry` 保存 run-scoped snapshot`plugin/handler.py` 对模型、工具、知识库、history、state、storage 等 action 做运行期校验,sandbox/workspace 文件访问由 scoped tool 边界控制。
**Skill 读写门控(不可弱化)**pipeline-visible 的 skill 一次性以 `rw` 挂进同一 sandbox,mount 层不区分「可见」与「已激活」;写类 native 操作(write/edit/exec)只放行 activated skill,读类放行 visible + activated——这层区分等同资产授权语义,必须保留。skill 全 tool 化后尤其注意:「都是 tool」不等于「只控资产授权即可」,native 层的 visible/activated 门控不能砍。可弱化的只是 realpath 越界字符串检查(有 chroot/namespace 兜底)。
### MCP / Asset Gateway Boundary
LangBot MCP / asset gateway 只暴露当前 run 授权的工具面:
- `langbot_list_assets`
- `langbot_get_current_event`
- `langbot_history_page`
- `langbot_retrieve_knowledge`
- `langbot_get_tool_detail`
- `langbot_call_tool`
外部平台需要使用短期 `run_token` 或 Authorization bearer token。token 缺失、错误或过期时必须拒绝访问。
不要求当前阶段实现 admin 级 MCP allowlist、dangerous tool approval 或复杂审批流。是否注册外部 MCP provider 是部署者/用户行为。
### Workspace / Path Boundary
LangBot 只需要约束自己管理的路径:
- Host staged 文件必须校验 `realpath` 和 root containment。
- Attachment/file metadata 不应暴露 Host-only storage key / host path。
- Context 文件、sandbox/workspace 文件如由 LangBot 创建,应放在可清理的位置。
用户配置给 ACP runner 的 workspace 不属于 LangBot 的强监管范围。Docker/K8s 下依赖 volume 挂载边界;普通进程部署下依赖 OS 用户权限和用户自担风险。
### Secret Handling
这里的 secret 指 API key、provider token、run token、MCP token、platform secret、数据库密码等。
当前阶段只要求基础策略:
- LangBot 不主动把自己持有的 secret 投影给 runner,除非这是 runner config 明确需要的外部服务凭据。
- run token 是短期、run-scoped 的,不应长期保存。
- 日志、错误、transcript、attachment/file metadata 尽量避免打印常见 secret 字段。
- 配置 UI / API 返回时继续沿用现有 secret masking 规则。
不要求当前阶段实现完整 DLP、全链路敏感数据追踪、secret lineage 或自动轮换体系。
### Process / Runtime Bounds
LangBot 需要提供基本可控性:
- Host run deadline / runner timeout。
- runner 侧请求 timeout。
- generator close / cancel 传播。
- 输出和 inline payload size 上限。
- 错误映射为受控 runner failure。
不要求 LangBot 为外部 harness 实现 CPU、内存、磁盘、网络、进程树强隔离。需要这些能力时由 Docker/K8s、systemd、容器平台或用户机器策略提供。
### UI / Admin Surface
前端可以展示 runner 权限摘要,但它是信息披露,不是审批系统。
权限摘要指 runner manifest 声明的 LangBot 资源权限,例如:
- `tools.detail`
- `tools.call`
- `knowledge_bases.retrieve`
- `history.page`
- `storage.plugin`
当前阶段不要求强制弹窗、管理员审批、dangerous tool approval 或生产禁用开关。可以在 runner 配置区展示简短提示:此 runner 能访问哪些 LangBot 资源,外部 harness 执行风险由用户/部署者承担。
### Audit Lite
需要记录足够排查问题的事实:
- run id、runner id、binding、event。
- 授权资源摘要。
- state update、file write/read event、transcript message。
- MCP / pull API 拒绝时的 warning。
- steering queued / injected / dropped。
不要求当前阶段建立独立安全审计产品、审批记录系统或 SIEM 级事件模型。
## 降级后的检查表
| 项目 | 当前要求 | 状态判断 |
| --- | --- | --- |
| Path isolation | 只约束 LangBot 管理的 context/sandbox 文件路径;runner workspace 归用户/部署环境。 | Minimal required |
| Permission boundary | 必须保护 LangBot 资源;不约束外部 CLI native 能力。 | Required |
| Secret handling | 基础不投影、基础 masking、run token 短期化。 | Basic required |
| MCP policy | run-scoped token + scoped tool surface;无复杂审批。 | Required |
| Skill access policy | skill 通过 Host 授权 tool 暴露(发现 / activate / register / native exec 走统一 tool 授权);**native 层 visible(只读)vs activated(可写)门控不可弱化**——所有 pipeline-visible skill 以 `rw` 挂进同一 sandbox,读写区分全靠 native 层;harness-native skill 文件不作为 LangBot 安全边界。 | Required |
| Process isolation | 由 Docker/K8s/用户机器负责。 | Out of scope |
| State lifecycle | scope 隔离、JSON size limit、基础 cleanup primitive。 | Basic required |
| Audit | 记录运行事实和拒绝原因。 | Audit-lite |
| UI / Admin control | 权限摘要可展示;不要求审批流。 | Optional |
| Test matrix | 覆盖 run auth、MCP token、permission deny、timeout、sandbox path、state size。 | Focused tests |
## 当前实现快照
截至 2026-06-15,已有实现覆盖:
- SDK typed AgentRunner manifest、capabilities、permissions。
- Host resource builder 按 manifest permissions 和 binding policy 生成 `ctx.resources`
- Active run session snapshot 和 `caller_plugin_identity` 校验。
- History / event / state / tool / knowledge runtime action 的 run-scoped 校验。
- Sandbox file path `realpath` + root containment。
- Persistent state scope 隔离和 JSON size limit。
- SDK-owned MCP bridge 和 long-lived asset gateway。
- Dify / ACP runner 对 LangBot asset gateway 的接入。
- Runner timeout、Dify HTTP timeout、ACP startup / initialize / request timeout。
仍可继续优化但不阻塞当前发布的事项:
- 前端展示 runner LangBot 资源权限摘要。
- 常见 secret 字段 redaction 收敛成统一 helper。
- Context/sandbox file TTL cleanup 调度。
- 更完整的 MCP 调用 audit。
- 更好的文档提示:ACP runner 是 operator-owned execution。
## 非目标
以下不属于当前 agent-runner pluginization 的安全目标:
- 防止 ACP / external harness 修改其 workspace。
- 防止外部 CLI 读取同一容器或 OS 用户本来可读的文件。
- 管控 external harness 的 provider-native tools、approval、MCP、browser、shell。
- 在 LangBot 应用层实现 VM / container / cgroup / seccomp / network policy。
- 为 Docker/K8s 部署替代平台自身的 secret、volume、network、resource limit 管理。
- 实现企业级审批系统、SIEM、DLP 或安全运营面板。
## 发布口径
可以对外说明:
> AgentRunner 插件通过 run-scoped authorization 和 scoped MCP gateway 保护 LangBot 持有资源。外部 code harness 的执行环境由用户或部署平台负责隔离;LangBot 当前不提供 managed sandbox。
不能对外说明:
> LangBot 已经安全沙箱化 Claude Code / Codex / OpenCode 等外部 runner。
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# AgentRunner Pluginization Status
本文档是 `docs/agent-runner-pluginization/` 的状态事实源。协议 schema 仍以 [PROTOCOL_V1.md](./PROTOCOL_V1.md) 为准;测试步骤以 [AGENT_RUNNER_QA_GUIDE.md](./AGENT_RUNNER_QA_GUIDE.md) 为准;安全发布门槛以 [SECURITY_HARDENING.md](./SECURITY_HARDENING.md) 为准。
状态快照日期:2026-06-20。
## 实现状态
| 领域 | 状态 | 说明 |
| --- | --- | --- |
| SDK manifest schema | Done | `AgentRunnerManifest` 包含 typed `capabilities` / `permissions`;未知 capability / permission key 禁止进入 typed model。 |
| Runner discovery | Done | Runtime 返回 typed manifestHost registry 校验单个 runner,失败 warning + skip,不影响其它 runner。 |
| Host resource authorization | Done | `ctx.resources``ctx.context.available_apis` 由 manifest permissions 与 binding policy / run scope 求交后生成。 |
| Run authorization snapshot | Done | active run session 冻结 run-scoped resources 与 available APIsruntime handler 按 snapshot 校验 pull API。 |
| Result payload validation | Done | Wire 保持 `{type, data}`Host 对投递/副作用类 payload 严格校验,tool-call telemetry 宽松,未知 type 忽略并 warning。 |
| Old built-in runners | Done | 旧 `src/langbot/pkg/provider/runners/*``RequestRunner` 路径已从本分支删除。 |
| Official runner manifests | Done | `local-agent`、ACP / Claude Code / Codex 外部 harness runner、外部服务 runner 已重新声明真实生效的 LangBot resource permissions。 |
| Skill 链路 | Broken → Redesigning | 分支上 skill 激活链端到端悬空:`activate` 调用未定义的 `persist_activated_skill`(运行即 `AttributeError`)、`host.activated_skills` 只读不写、skill awareness 既未注入也未被 runner 消费。已拍板改为 **skill 全 tool 化**:发现走 `list_skills` / `langbot_list_assets` 加 skills 一类,`activate` / `register_skill` 走统一 tool 授权,`skill_authoring` capability 降级为便捷开关,host 直接写 `host.activated_skills`last-write-wins)。 |
| Runtime Control Plane v2 foundation | Partial | Host-owned `AgentRun` / `AgentRunEvent` ledger、orchestrator 自动建账、result event persistence、run get/list/event page/cancel/append/finalize actions 已落地;`agent_run:admin` / `runtime:admin` 控制权限、最小 runtime register/heartbeat/list/reconcile 和 run claim/renew/release 原语已落地。完整 Agent Platform 产品形态、daemon supervisor、任务唤醒/长轮询/WebSocket、分布式 runtime 管控仍未完成。 |
| Security boundary | Done | 当前口径降级为轻量边界:LangBot 保护自身持有资源;external harness 的 OS / process / network / workspace 风险由用户或部署环境承担;managed sandbox 不是当前承诺。 |
| Steering control path | Done | claim 异常不再逃逸 consumer loopqueue 有上限;未 pull 的 claimed 输入在 run 结束时写 `steering.dropped` 审计终态。 |
| SDK v1 contract closure | Done | SDK 提供 `AgentAPIError` / `AgentAPIException`、typed `SteeringPullResult`、未知 result type 宽容解析、result `sequence` 注入与取消传播。 |
## Spec 与实现已知差距
- `action.requested` 仍只作为 telemetry / reserved surfaceplatform action executor 不在本分支执行。
- EventGateway / EventRouter 完整实现由外部 EBA 分支联调;本分支只提供 event-first host envelope / binding / run 入口。
- State 与 storage 的长期类型边界仍可继续收窄;当前合同只要求 JSON-safe state 与受控 storage API。
- `ToolResource` 当前只带 `tool_name` / `tool_type` / `description` / `operations`,不含 `parameters` full schemarunner(如 local-agent `build_llm_tools`)需逐个 `get_tool_detail` 往返。拟在 `ToolResource` 增补 `parameters`,由 Host 在构造 `ctx.resources` 时一次塞齐。
- EventLog / Transcript 已提供显式 cleanup primitive;长期 retention 默认值、TTL 调度接入和 sandbox/workspace 文件清理仍是运维收尾项,应在 Runtime Control Plane 产品化前补齐。
- External harness 的 native shell / filesystem / CLI / MCP 权限不受 manifest permissions 约束;manifest permissions 只约束 LangBot 持有的资源访问。
- LangBot 当前不承诺 managed sandboxexternal harness 的 OS/process/network quota、workspace GC、provider-native tool 权限由用户或部署环境承担。
- Runtime Control Plane v2 当前只落地 Host 事实源和控制原语;还没有内置 Agent Platform UI、业务队列、daemon 进程托管、runtime wakeup channel、跨 Host 分布式锁或 provider 登录态诊断。
## Runner 验收状态
| Runner | 状态 | 最近证据 |
| --- | --- | --- |
| `plugin:langbot/local-agent/default` | Unit-pass; UI smoke pending | 2026-06-10 本地 pytest / ruff 通过;WebUI smoke 由人工统一执行。 |
| `plugin:langbot/acp-agent-runner/default` / `plugin:langbot/claude-code-agent/default` / `plugin:langbot/codex-agent/default` | Unit-pass; E2E pending | 通过 runner 仓库单测覆盖 session、run_id 注入和 LangBot MCP gateway;真实 harness E2E 取决于对应运行环境、CLI/daemon 可用性和 provider 登录态。 |
| Dify / n8n / Coze / DashScope / Langflow / Tbox / DeerFlow / WeKnora | Unit-pass; credential smoke optional | 2026-06-13 plugin layout / parser tests 通过;真实服务凭据 smoke 非每轮必跑。 |
## Host / SDK 验收状态
| 范围 | 状态 | 最近证据 |
| --- | --- | --- |
| LangBot Runtime Control Plane v2 foundation | Unit-pass; product E2E pending | 2026-06-16 `tests/unit_tests/agent/test_run_ledger_store.py``test_run_ledger_api_auth.py``test_orchestrator_integration.py` 通过,覆盖 ledger、admin permissions、runtime heartbeat、claim/reconcile、orchestrator 持久化和取消传播。 |
| SDK AgentRunner control entities / proxy | Unit-pass | 2026-06-16 SDK agent-runner 相关单测通过,覆盖 typed run ledger entities、AgentRunAPIProxy、MCP bridge、runtime manager 与 pull API handlers。 |
## 历史高价值记录
历史报告已合并为本状态页和 QA 指南,不再保留单独进度文档。后续若需要追溯,优先查看 `langbot-skills/reports/` 下的原始执行报告。
截至 2026-05-29,已有本地 smoke 证明:
- `local-agent` 可以通过 Pipeline Debug Chat 走插件化 `AgentRunOrchestrator` 主链路。
- 外部 harness runner 可以通过同一条 `run(event, binding)` 路径执行;当前官方实现已收敛到 ACP / Claude Code / Codex 等直接 runner 插件。
这些记录只证明本地协议闭环可用,不代表 LangBot 提供 managed sandbox 或 external harness OS 级隔离。
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{
"openapi": "3.0.3",
"info": {
"title": "LangBot HTTP Bot Adapter",
"version": "1.0.0",
"description": "Server-to-server HTTP integration for a LangBot pipeline. Inbound messages are POSTed to the unified webhook route; replies are delivered to a configured callback URL (one POST per reply part). All requests are HMAC-SHA256 signed. See docs/platforms/http-bot.md."
},
"paths": {
"/bots/{bot_uuid}": {
"post": {
"summary": "Push a message into the pipeline (fire-and-collect)",
"description": "Returns 202 immediately. Replies arrive asynchronously on the configured callback URL. Reuse the same session_id within the aggregation window to merge multiple messages into one turn (N->1).",
"parameters": [
{ "$ref": "#/components/parameters/BotUuid" },
{ "$ref": "#/components/parameters/Timestamp" },
{ "$ref": "#/components/parameters/Signature" },
{ "$ref": "#/components/parameters/Idempotency" }
],
"requestBody": {
"required": true,
"content": { "application/json": { "schema": { "$ref": "#/components/schemas/InboundMessage" } } }
},
"responses": {
"202": {
"description": "Accepted (queued for the pipeline)",
"content": { "application/json": { "schema": { "$ref": "#/components/schemas/AcceptedResponse" } } }
},
"400": { "$ref": "#/components/responses/Error" },
"401": { "$ref": "#/components/responses/Error" },
"409": { "$ref": "#/components/responses/Error" },
"413": { "$ref": "#/components/responses/Error" }
}
}
},
"/bots/{bot_uuid}/sync": {
"post": {
"summary": "Push a message and wait for the collapsed reply",
"description": "Blocking convenience mode. Waits for is_final and returns all reply parts collapsed into one array. Lossy (no sequence/streaming). One in-flight sync per session_id.",
"parameters": [
{ "$ref": "#/components/parameters/BotUuid" },
{ "$ref": "#/components/parameters/Timestamp" },
{ "$ref": "#/components/parameters/Signature" }
],
"requestBody": {
"required": true,
"content": { "application/json": { "schema": { "$ref": "#/components/schemas/InboundMessage" } } }
},
"responses": {
"200": {
"description": "The collapsed reply",
"content": { "application/json": { "schema": { "$ref": "#/components/schemas/SyncResponse" } } }
},
"400": { "$ref": "#/components/responses/Error" },
"401": { "$ref": "#/components/responses/Error" }
}
}
},
"/bots/{bot_uuid}/reset": {
"post": {
"summary": "Reset a session's conversation",
"parameters": [
{ "$ref": "#/components/parameters/BotUuid" },
{ "$ref": "#/components/parameters/Timestamp" },
{ "$ref": "#/components/parameters/Signature" }
],
"requestBody": {
"required": true,
"content": {
"application/json": {
"schema": {
"type": "object",
"required": ["session_id"],
"properties": {
"session_id": { "type": "string" },
"session_type": { "type": "string", "enum": ["person", "group"] }
}
}
}
}
},
"responses": {
"200": { "description": "Reset done" },
"400": { "$ref": "#/components/responses/Error" },
"401": { "$ref": "#/components/responses/Error" }
}
}
}
},
"components": {
"parameters": {
"BotUuid": {
"name": "bot_uuid", "in": "path", "required": true,
"schema": { "type": "string", "format": "uuid" }
},
"Timestamp": {
"name": "X-LB-Timestamp", "in": "header", "required": true,
"description": "Unix seconds; rejected if more than +/-300s from server time.",
"schema": { "type": "string" }
},
"Signature": {
"name": "X-LB-Signature", "in": "header", "required": true,
"description": "sha256=<hex> of HMAC-SHA256(secret, \"{timestamp}.\" + raw_body).",
"schema": { "type": "string" }
},
"Idempotency": {
"name": "X-LB-Idempotency-Key", "in": "header", "required": false,
"description": "Dedup key; a repeat within the dedup window returns 409.",
"schema": { "type": "string" }
}
},
"schemas": {
"Segment": {
"type": "object",
"required": ["type"],
"properties": {
"type": { "type": "string", "enum": ["Plain", "Image", "Voice", "File", "At", "Quote"] },
"text": { "type": "string", "description": "For type=Plain." },
"url": { "type": "string", "description": "For media types." },
"base64": { "type": "string", "description": "For media types (data URI or raw base64)." }
}
},
"InboundMessage": {
"type": "object",
"required": ["session_id", "message"],
"properties": {
"session_id": { "type": "string", "description": "Caller-defined; maps 1:1 to a LangBot session." },
"session_type": { "type": "string", "enum": ["person", "group"], "default": "person" },
"sender": {
"type": "object",
"properties": {
"id": { "type": "string" },
"name": { "type": "string" },
"group_name": { "type": "string", "description": "For session_type=group." }
}
},
"message": { "type": "array", "items": { "$ref": "#/components/schemas/Segment" } }
}
},
"AcceptedResponse": {
"type": "object",
"properties": {
"code": { "type": "integer", "example": 0 },
"msg": { "type": "string", "example": "accepted" },
"data": {
"type": "object",
"properties": {
"session_id": { "type": "string" },
"accepted_message_id": { "type": "string", "example": "in_01H..." },
"aggregating": { "type": "boolean" }
}
}
}
},
"SyncResponse": {
"type": "object",
"properties": {
"code": { "type": "integer", "example": 0 },
"msg": { "type": "string", "example": "ok" },
"data": {
"type": "object",
"properties": {
"session_id": { "type": "string" },
"reply_to": { "type": "string" },
"message": { "type": "array", "items": { "$ref": "#/components/schemas/Segment" } }
}
}
}
},
"Callback": {
"type": "object",
"description": "Delivered by LangBot to your callback_url, one POST per reply part. Signed with the outbound secret.",
"properties": {
"session_id": { "type": "string" },
"reply_to": { "type": "string", "description": "The accepted_message_id this answers." },
"sequence": { "type": "integer", "description": "1-based ordinal within the turn." },
"is_final": { "type": "boolean", "description": "True on the last part of the turn." },
"stream": { "type": "boolean" },
"message": { "type": "array", "items": { "$ref": "#/components/schemas/Segment" } },
"timestamp": { "type": "string", "format": "date-time" }
}
},
"ErrorEnvelope": {
"type": "object",
"properties": {
"code": { "type": "integer", "example": 40101 },
"msg": { "type": "string", "example": "invalid signature: signature_mismatch" },
"data": { "nullable": true }
}
}
},
"responses": {
"Error": {
"description": "Error envelope",
"content": { "application/json": { "schema": { "$ref": "#/components/schemas/ErrorEnvelope" } } }
}
}
}
}
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# HTTP Bot Adapter — Integration Guide
Integrate **any backend system** with a LangBot pipeline over plain HTTP. Push
messages in via a signed webhook; receive replies on a callback URL. No
long-lived connection, full support for message **aggregation** (many inbound
messages merged into one turn) and **multi-part replies** (one turn → many
outbound messages).
This is the right adapter for **server-to-server** integrations — ticketing
systems, CRMs, internal tools, custom web backends. (For an in-browser,
real-time chat widget, use the embeddable Web Page Bot instead.)
> **5-minute goal:** stand up a callback receiver, send a message, and watch a
> multi-part reply arrive — using the reference client in
> [`examples/http-bot/`](../../examples/http-bot/).
---
## 1. Mental model
```
Your backend ──(1) POST signed message──► LangBot /bots/<bot_uuid>
(pipeline runs: aggregate → think → reply)
Your callback ◄─(2) POST signed reply(s)── LangBot one POST per reply part
```
- **(1) Inbound** is *fire-and-collect*: LangBot answers `202 Accepted`
immediately and does **not** return the pipeline result on that response.
- **(2) Outbound** replies arrive later as separate signed POSTs to your
`callback_url`. A single turn may produce **several** callbacks (e.g. a tool
call narration followed by the final answer).
- Everything is keyed by a **`session_id` you choose** (e.g. a ticket number).
Each `session_id` maps to one isolated LangBot conversation.
---
## 2. Create the bot
1. In the LangBot dashboard, add a bot and choose the **HTTP Bot** platform.
2. Fill in the config:
| Field | Required | Notes |
|---|---|---|
| **Inbound Signing Secret** | yes | Your backend signs inbound requests with this. |
| **Outbound Callback URL** | yes | Where LangBot POSTs replies. **Config-only** — cannot be overridden per message (SSRF protection). |
| **Outbound Signing Secret** | no | LangBot signs callbacks with this; defaults to the inbound secret. |
| **Default Session Type** | no | `person` (default) or `group`. |
| **Require Inbound Signature** | no | Keep `true` in production. |
| **Callback Timeout / Max Retries** | no | Defaults: 15s, 3 retries. |
3. Bind the bot to a **pipeline** and **enable** it.
4. Copy the **Inbound Webhook URL** shown in the config — it looks like
`https://your-langbot/bots/<bot_uuid>`.
---
## 3. The signature scheme
Both directions use the same dependency-free HMAC-SHA256 scheme:
```
signing_string = "{timestamp}." + raw_body_bytes
signature = "sha256=" + hex(HMAC_SHA256(secret, signing_string))
```
Sent as headers:
| Header | Meaning |
|---|---|
| `X-LB-Timestamp` | Unix seconds. Rejected if more than **±300s** from server time. |
| `X-LB-Signature` | `sha256=<hex>` over `"{timestamp}." + body`. |
| `X-LB-Idempotency-Key` | *(optional, inbound)* dedup key; retries with the same key return `409`. |
Verify outbound callbacks the same way, using the **outbound** secret (or the
inbound secret if you left it blank).
A six-line reference implementation is in `examples/http-bot/client.py`
(`sign()` / `verify()`); a Node/TS version is in `client.ts`.
---
## 4. Send your first message (curl)
```bash
BOT="https://your-langbot/bots/<bot_uuid>"
SECRET="your-inbound-secret"
BODY='{"session_id":"ticket-10293","message":[{"type":"Plain","text":"Export keeps failing on the dashboard."}]}'
TS=$(date +%s)
SIG="sha256=$(printf '%s.%s' "$TS" "$BODY" | openssl dgst -sha256 -hmac "$SECRET" -r | cut -d' ' -f1)"
curl -sS -X POST "$BOT" \
-H "Content-Type: application/json" \
-H "X-LB-Timestamp: $TS" \
-H "X-LB-Signature: $SIG" \
-d "$BODY"
# -> 202 {"code":0,"msg":"accepted","data":{"session_id":"ticket-10293","accepted_message_id":"in_...","aggregating":true}}
```
The reply(s) will be POSTed to your configured callback URL shortly after.
---
## 5. Inbound request format
`POST /bots/{bot_uuid}`
```jsonc
{
"session_id": "ticket-10293", // REQUIRED. Your stable id. Maps 1:1 to a LangBot session.
"session_type": "person", // optional: "person" | "group"; default from config
"sender": { // optional metadata, surfaced to the pipeline/plugins
"id": "user-5567",
"name": "Alice"
},
"message": [ // REQUIRED. A LangBot MessageChain (array of segments).
{ "type": "Plain", "text": "Export keeps failing on the dashboard." },
{ "type": "Image", "url": "https://example.com/screenshot.png" }
]
}
```
**Message segments.** Text uses `{"type":"Plain","text":"..."}`. Images use
`{"type":"Image","url":"..."}` (or `base64`). Other supported types: `Voice`,
`File`, `At`, `Quote`.
> Note: the callback URL is **not** accepted in the body — it is taken only from
> bot config. This is deliberate (prevents an attacker who obtains the inbound
> secret from redirecting replies to an arbitrary host).
### Aggregation (N → 1)
If your pipeline has **message aggregation** enabled, send several messages with
the **same `session_id`** within the aggregation window and they are merged into
**one** pipeline turn. No special flag — just reuse the `session_id`.
---
## 6. Outbound callback format
LangBot POSTs each reply part to your `callback_url`:
```jsonc
{
"session_id": "ticket-10293", // echoes the inbound session
"reply_to": "in_01H...", // the accepted_message_id this answers
"sequence": 1, // 1-based ordinal within this turn
"is_final": false, // true on the last part of the turn
"stream": false, // true for streamed chunks
"message": [ { "type": "Plain", "text": "Looking into it…" } ],
"timestamp": "2026-06-22T09:00:01Z"
}
```
Your endpoint should return `2xx` quickly. Non-2xx / timeout → LangBot retries
with exponential backoff (up to `callback_max_retries`).
### Multi-part replies (1 → M)
One turn may emit multiple callbacks, delivered **in `sequence` order** for a
given session:
```
seq=1 is_final=false "Checking your export logs…"
seq=2 is_final=false "Found 2 failed exports."
seq=3 is_final=true "Fixed — please try again."
```
Stitch by `session_id` + `sequence`; the turn is complete when
`is_final: true` arrives.
---
## 7. Reset a session
Start a fresh conversation for a `session_id` (drops history):
```
POST /bots/{bot_uuid}/reset
{ "session_id": "ticket-10293", "session_type": "person" }
→ 200 { "code":0, "msg":"reset", "data": { "session_id":"ticket-10293", "removed": true } }
```
Signed exactly like an inbound message.
---
## 8. Synchronous convenience mode
If you don't need streaming/multi-part and just want one reply back on the same
HTTP call, POST to `/sync`. LangBot waits for the turn to finish and returns all
parts **collapsed** into one array:
```
POST /bots/{bot_uuid}/sync
{ "session_id": "ticket-10293", "message": [ { "type":"Plain", "text":"hi" } ] }
→ 200 { "code":0, "msg":"ok",
"data": { "session_id":"ticket-10293", "reply_to":"in_...",
"message": [ {"type":"Plain","text":"..."}, ... ] } }
```
This is **lossy** (you lose `sequence` / streaming boundaries) and blocks up to
`callback_timeout × 4` seconds. Prefer the callback model for anything
real-time or multi-part. Only one in-flight `/sync` per `session_id`.
---
## 9. Error envelope
```jsonc
{ "code": 40101, "msg": "invalid signature: signature_mismatch", "data": null }
```
| HTTP | code | meaning |
|---|---|---|
| 202 | 0 | accepted |
| 400 | 40001 | malformed body / missing `session_id` or `message` |
| 401 | 40101 | bad/expired signature |
| 409 | 40901 | duplicate idempotency key |
| 413 | 41301 | message too large (>1 MiB) |
| 500 | 50001 | internal error |
---
## 10. Try it end-to-end in 5 minutes
```bash
cd examples/http-bot
pip install flask requests
# Terminal 1 — your callback receiver (point the bot's callback_url here, e.g. via a tunnel):
python client.py serve --port 8900 --secret SHARED_SECRET
# Terminal 2 — push a message:
python client.py push \
--url https://your-langbot/bots/<bot_uuid> \
--secret SHARED_SECRET \
--session ticket-1 \
--text "hello"
```
Watch Terminal 1 print each reply part (`[part ]` / `[FINAL]`) with its
sequence number — that's 1→M working, signatures verified.
A machine-readable contract is in
[`docs/http-bot-openapi.json`](../http-bot-openapi.json).
---
## 11. Security checklist
- Keep **Require Inbound Signature** on in production.
- Use **HTTPS** callback URLs; the URL is config-only (no per-message override).
- Treat the secrets like passwords; rotate via the dashboard.
- The inbound route is unauthenticated at the framework level **by design**
security comes entirely from the HMAC signature, so never disable it on a
public deployment.
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# HTTP Bot Adapter — Reference Clients
> English | [中文](./README.zh.md)
Minimal, dependency-light clients for the LangBot **HTTP Bot** platform adapter.
They show the whole loop: signing a request, pushing a message, and receiving
multi-part replies on a callback endpoint.
Full guide: [docs.langbot.app — HTTP Bot](https://docs.langbot.app/en/usage/platforms/http-bot).
Machine-readable contract: [`docs/http-bot-openapi.json`](../../docs/http-bot-openapi.json).
## Files
| File | What it is |
|---|---|
| `playground.py` | **Interactive browser debug console** — a single-file web app you open in a browser to chat with a running `http_bot` bot and watch signing / 202 / callbacks live. Zero extra deps. |
| `client.py` | Python client + Flask callback receiver (`pip install flask requests`). |
| `client.ts` | TypeScript/Node 18+ client + callback receiver, **zero deps** (`npx tsx client.ts`). |
All three implement the identical HMAC-SHA256 scheme
(`sha256=hex(HMAC(secret, "{timestamp}." + body))`) — verified byte-for-byte
against the adapter.
## Interactive playground (recommended first run)
A self-contained web console: type a message in your browser, it is signed and
POSTed to a **running** `http_bot` bot, and the bot's replies stream back into
the page — with a debug panel showing the signature, the `202` ack, and each
callback's `sequence` / signature-verification.
```bash
# From the LangBot repo root, with the backend already running:
PUBLIC_IP=<your-host-ip> ./.venv/bin/python examples/http-bot/playground.py
# then open http://<your-host-ip>:8920/
```
On startup it reads the LangBot API key + the `http_bot` bot from
`data/langbot.db`, and configures that bot (inbound/outbound secret +
`callback_url`) to point back at itself via the LangBot API — the bot reloads
live, no restart needed. Requirements: an enabled `http_bot` bot bound to a
working pipeline, and port `8920` reachable from your browser.
Env knobs: `PUBLIC_IP` (default `127.0.0.1`), `PLAYGROUND_PORT` (default `8920`).
## Headless clients
```bash
# Python — Terminal 1: callback receiver (your callback_url target)
python client.py serve --port 8900 --secret SHARED_SECRET
# Python — Terminal 2: push a message
python client.py push --url https://your-langbot/bots/<BOT_UUID> \
--secret SHARED_SECRET --session ticket-1 --text "hello"
# blocking sync mode
python client.py sync --url https://your-langbot/bots/<BOT_UUID> \
--secret SHARED_SECRET --session ticket-1 --text "hello"
# reset a session
python client.py reset --url https://your-langbot/bots/<BOT_UUID> \
--secret SHARED_SECRET --session ticket-1
```
```bash
# TypeScript (Node 18+)
npx tsx client.ts serve 8900 SHARED_SECRET
npx tsx client.ts push https://your-langbot/bots/<BOT_UUID> SHARED_SECRET ticket-1 "hello"
```
When the bot replies, the receiver prints each part with its `sequence` and an
`[FINAL]` marker on the last one — that's the 1→M multi-reply model in action.
> The bot's `callback_url` must be reachable from LangBot. For local testing,
> expose your receiver with a tunnel (cloudflared / ngrok) and set that URL in
> the bot config.
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# HTTP Bot 适配器 —— 参考客户端
> [English](./README.md) | 中文
面向 LangBot **HTTP Bot** 平台适配器的极简、低依赖客户端示例。
它们完整展示了整条链路:对请求签名、推送一条消息、在回调端点接收
1→M 的多段回复。
完整指南:[docs.langbot.app —— HTTP Bot](https://docs.langbot.app/zh/usage/platforms/http-bot)。
机器可读的接口契约:[`docs/http-bot-openapi.json`](../../docs/http-bot-openapi.json)。
## 文件清单
| 文件 | 是什么 |
|---|---|
| `playground.py` | **浏览器交互式调试台** —— 单文件 Web 应用,在浏览器里和一个运行中的 `http_bot` bot 对话,实时观察签名 / 202 / 回调。零额外依赖。 |
| `client.py` | Python 客户端 + Flask 回调接收端(`pip install flask requests`)。 |
| `client.ts` | TypeScript/Node 18+ 客户端 + 回调接收端,**零依赖**(`npx tsx client.ts`)。 |
三者实现完全一致的 HMAC-SHA256 签名方案
(`sha256=hex(HMAC(secret, "{timestamp}." + body))`)—— 已与适配器逐字节比对验证。
## 交互式 playground(推荐先跑这个)
一个自包含的 Web 控制台:在浏览器里输入消息,它会被签名并 POST 给一个
**运行中**的 `http_bot` bot,bot 的回复会流式回到页面上 —— 调试面板会显示
签名、`202` 确认,以及每条回调的 `sequence` / 签名验证结果。
```bash
# 在 LangBot 仓库根目录、后端已启动的前提下:
PUBLIC_IP=<你的主机IP> ./.venv/bin/python examples/http-bot/playground.py
# 然后打开 http://<你的主机IP>:8920/
```
启动时它会从 `data/langbot.db` 读取 LangBot API key 和 `http_bot` bot,
并通过 LangBot API 把该 bot 配好(入站/出站密钥 + `callback_url`)指回自己 ——
bot 会热加载,无需重启。前提:有一个已启用、绑定了可用 pipeline 的
`http_bot` bot,且端口 `8920` 能从你的浏览器访问到。
可调环境变量:`PUBLIC_IP`(默认 `127.0.0.1`)、`PLAYGROUND_PORT`(默认 `8920`)。
## 无头客户端
```bash
# Python —— 终端 1:回调接收端(你的 callback_url 指向它)
python client.py serve --port 8900 --secret SHARED_SECRET
# Python —— 终端 2:推送一条消息
python client.py push --url https://your-langbot/bots/<BOT_UUID> \
--secret SHARED_SECRET --session ticket-1 --text "hello"
# 阻塞式同步模式
python client.py sync --url https://your-langbot/bots/<BOT_UUID> \
--secret SHARED_SECRET --session ticket-1 --text "hello"
# 重置一个会话
python client.py reset --url https://your-langbot/bots/<BOT_UUID> \
--secret SHARED_SECRET --session ticket-1
```
```bash
# TypeScript(Node 18+)
npx tsx client.ts serve 8900 SHARED_SECRET
npx tsx client.ts push https://your-langbot/bots/<BOT_UUID> SHARED_SECRET ticket-1 "hello"
```
当 bot 回复时,接收端会逐条打印,带上各自的 `sequence`,并在最后一条标记
`[FINAL]` —— 这就是 1→M 多段回复模型的实际效果。
> bot 的 `callback_url` 必须能从 LangBot 访问到。本地测试时,可用隧道
> (cloudflared / ngrok)把你的接收端暴露出去,并把那个 URL 填进 bot 配置。
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#!/usr/bin/env python3
"""LangBot HTTP Bot adapter — reference client (Python).
Two things in one file:
1. ``push()`` / ``push_sync()`` — send a message into a LangBot ``http_bot`` bot.
2. A tiny Flask callback receiver that verifies signatures and prints replies,
so you can watch N->1 aggregation and 1->M multi-reply working live.
Usage
-----
pip install flask requests
# Terminal 1 — start the callback receiver (this is your callback_url):
python client.py serve --port 8900 --secret SHARED_SECRET
# Terminal 2 — push a message (async; reply lands on the receiver):
python client.py push \
--url https://your-langbot/bots/<BOT_UUID> \
--secret SHARED_SECRET \
--session ticket-10293 \
--text "Export keeps failing on the dashboard."
# Or push and block for the collapsed reply (sync convenience mode):
python client.py sync --url https://your-langbot/bots/<BOT_UUID> \
--secret SHARED_SECRET --session ticket-10293 --text "hi"
The signing scheme is HMAC-SHA256 over ``"{timestamp}." + raw_body``; see
``sign()`` below — it is intentionally tiny and easy to port.
"""
from __future__ import annotations
import argparse
import hashlib
import hmac
import json
import sys
import time
import uuid
HEADER_TIMESTAMP = 'X-LB-Timestamp'
HEADER_SIGNATURE = 'X-LB-Signature'
HEADER_IDEMPOTENCY = 'X-LB-Idempotency-Key'
REPLAY_WINDOW = 300
def sign(secret: str, body: bytes, timestamp: int | None = None) -> tuple[str, str]:
"""Return (timestamp, signature) for *body*."""
ts = str(timestamp if timestamp is not None else int(time.time()))
mac = hmac.new(secret.encode(), f'{ts}.'.encode() + body, hashlib.sha256)
return ts, 'sha256=' + mac.hexdigest()
def verify(secret: str, body: bytes, timestamp: str | None, signature: str | None) -> bool:
"""Verify an inbound signature (used by the callback receiver)."""
if not timestamp or not signature:
return False
try:
if abs(int(time.time()) - int(float(timestamp))) > REPLAY_WINDOW:
return False
except ValueError:
return False
_, expected = sign(secret, body, int(float(timestamp)))
return hmac.compare_digest(expected, signature)
def _post(url: str, secret: str, payload: dict, idempotency: bool = True):
import requests
body = json.dumps(payload, ensure_ascii=False).encode()
ts, sig = sign(secret, body)
headers = {
'Content-Type': 'application/json',
HEADER_TIMESTAMP: ts,
HEADER_SIGNATURE: sig,
}
if idempotency:
headers[HEADER_IDEMPOTENCY] = uuid.uuid4().hex
resp = requests.post(url, data=body, headers=headers, timeout=30)
print(f'-> {resp.status_code} {resp.text}')
return resp
def push(url: str, secret: str, session: str, text: str, session_type: str = 'person'):
"""Fire-and-collect: returns 202 immediately; reply arrives on your callback."""
payload = {
'session_id': session,
'session_type': session_type,
'message': [{'type': 'Plain', 'text': text}],
}
return _post(url.rstrip('/'), secret, payload)
def push_sync(url: str, secret: str, session: str, text: str, session_type: str = 'person'):
"""Blocking convenience: POST to /sync and get the collapsed reply back."""
payload = {
'session_id': session,
'session_type': session_type,
'message': [{'type': 'Plain', 'text': text}],
}
resp = _post(url.rstrip('/') + '/sync', secret, payload, idempotency=False)
return resp
def reset(url: str, secret: str, session: str, session_type: str = 'person'):
"""Reset a session's conversation (next message starts fresh)."""
payload = {'session_id': session, 'session_type': session_type}
return _post(url.rstrip('/') + '/reset', secret, payload, idempotency=False)
def serve(port: int, secret: str):
"""Run a callback receiver that verifies signatures and prints replies."""
from flask import Flask, request
app = Flask(__name__)
@app.route('/', methods=['POST'])
def recv():
raw = request.get_data()
ok = verify(secret, raw, request.headers.get(HEADER_TIMESTAMP), request.headers.get(HEADER_SIGNATURE))
if not ok:
print('!! signature verification FAILED — rejecting')
return {'error': 'bad signature'}, 401
data = json.loads(raw)
text_parts = [c.get('text', '') for c in data.get('message', []) if c.get('type') == 'Plain']
marker = 'FINAL' if data.get('is_final') else 'part '
print(
f'[{marker}] session={data["session_id"]} seq={data["sequence"]} '
f'reply_to={data.get("reply_to")}: {" ".join(text_parts)}'
)
return {'ok': True}
print(f'callback receiver listening on http://0.0.0.0:{port}/ (Ctrl-C to stop)')
app.run(host='0.0.0.0', port=port)
def main(argv=None):
p = argparse.ArgumentParser(description='LangBot HTTP Bot reference client')
sub = p.add_subparsers(dest='cmd', required=True)
sp = sub.add_parser('serve', help='run the callback receiver')
sp.add_argument('--port', type=int, default=8900)
sp.add_argument('--secret', required=True)
for name in ('push', 'sync', 'reset'):
c = sub.add_parser(name)
c.add_argument('--url', required=True, help='https://host/bots/<BOT_UUID>')
c.add_argument('--secret', required=True)
c.add_argument('--session', required=True)
c.add_argument('--session-type', default='person', choices=['person', 'group'])
if name != 'reset':
c.add_argument('--text', required=True)
args = p.parse_args(argv)
if args.cmd == 'serve':
serve(args.port, args.secret)
elif args.cmd == 'push':
push(args.url, args.secret, args.session, args.text, args.session_type)
elif args.cmd == 'sync':
push_sync(args.url, args.secret, args.session, args.text, args.session_type)
elif args.cmd == 'reset':
reset(args.url, args.secret, args.session, args.session_type)
if __name__ == '__main__':
sys.exit(main())
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/**
* LangBot HTTP Bot adapter — reference client (TypeScript / Node 18+).
*
* Zero runtime dependencies (uses global `fetch`, `crypto`, and `http`).
*
* - `push()` : fire-and-collect; reply lands on your callback URL.
* - `pushSync()` : POST /sync and await the collapsed reply.
* - `reset()` : reset a session's conversation.
* - `startReceiver()` : a callback server that verifies signatures and logs
* replies, so you can watch N->1 and 1->M live.
*
* Run the demos:
* npx tsx client.ts serve 8900 SHARED_SECRET
* npx tsx client.ts push https://host/bots/<UUID> SHARED_SECRET ticket-1 "hello"
* npx tsx client.ts sync https://host/bots/<UUID> SHARED_SECRET ticket-1 "hello"
* npx tsx client.ts reset https://host/bots/<UUID> SHARED_SECRET ticket-1
*/
import { createHmac, randomUUID, timingSafeEqual } from 'node:crypto';
import { createServer } from 'node:http';
const HEADER_TIMESTAMP = 'X-LB-Timestamp';
const HEADER_SIGNATURE = 'X-LB-Signature';
const HEADER_IDEMPOTENCY = 'X-LB-Idempotency-Key';
const REPLAY_WINDOW = 300;
/** Compute the `sha256=<hex>` signature over `"{ts}." + body`. */
export function sign(secret: string, body: Buffer | string, timestamp?: number): [string, string] {
const ts = String(timestamp ?? Math.floor(Date.now() / 1000));
const buf = typeof body === 'string' ? Buffer.from(body) : body;
const mac = createHmac('sha256', secret).update(Buffer.concat([Buffer.from(`${ts}.`), buf])).digest('hex');
return [ts, `sha256=${mac}`];
}
/** Verify an inbound signature (used by the callback receiver). */
export function verify(secret: string, body: Buffer, timestamp?: string, signature?: string): boolean {
if (!timestamp || !signature) return false;
if (Math.abs(Math.floor(Date.now() / 1000) - Number(timestamp)) > REPLAY_WINDOW) return false;
const [, expected] = sign(secret, body, Number(timestamp));
const a = Buffer.from(expected);
const b = Buffer.from(signature);
return a.length === b.length && timingSafeEqual(a, b);
}
interface Segment { type: string; text?: string; url?: string; [k: string]: unknown }
async function post(url: string, secret: string, payload: object, idempotency = true) {
const body = Buffer.from(JSON.stringify(payload));
const [ts, sig] = sign(secret, body);
const headers: Record<string, string> = {
'Content-Type': 'application/json',
[HEADER_TIMESTAMP]: ts,
[HEADER_SIGNATURE]: sig,
};
if (idempotency) headers[HEADER_IDEMPOTENCY] = randomUUID();
const resp = await fetch(url, { method: 'POST', headers, body });
const text = await resp.text();
console.log(`-> ${resp.status} ${text}`);
return { status: resp.status, text };
}
/** Fire-and-collect: 202 now, reply later on your callback URL. */
export function push(url: string, secret: string, session: string, text: string, sessionType = 'person') {
return post(url.replace(/\/$/, ''), secret, {
session_id: session,
session_type: sessionType,
message: [{ type: 'Plain', text }] as Segment[],
});
}
/** Blocking convenience: POST /sync, get the collapsed reply. */
export function pushSync(url: string, secret: string, session: string, text: string, sessionType = 'person') {
return post(`${url.replace(/\/$/, '')}/sync`, secret, {
session_id: session,
session_type: sessionType,
message: [{ type: 'Plain', text }] as Segment[],
}, false);
}
/** Reset a session's conversation. */
export function reset(url: string, secret: string, session: string, sessionType = 'person') {
return post(`${url.replace(/\/$/, '')}/reset`, secret, { session_id: session, session_type: sessionType }, false);
}
/** Run a callback receiver that verifies signatures and prints replies. */
export function startReceiver(port: number, secret: string) {
const server = createServer((req, res) => {
if (req.method !== 'POST') { res.writeHead(405).end(); return; }
const chunks: Buffer[] = [];
req.on('data', (c) => chunks.push(c));
req.on('end', () => {
const raw = Buffer.concat(chunks);
const ok = verify(secret, raw, req.headers[HEADER_TIMESTAMP.toLowerCase()] as string,
req.headers[HEADER_SIGNATURE.toLowerCase()] as string);
if (!ok) {
console.log('!! signature verification FAILED — rejecting');
res.writeHead(401, { 'Content-Type': 'application/json' }).end(JSON.stringify({ error: 'bad signature' }));
return;
}
const data = JSON.parse(raw.toString());
const parts = (data.message as Segment[]).filter((c) => c.type === 'Plain').map((c) => c.text).join(' ');
const marker = data.is_final ? 'FINAL' : 'part ';
console.log(`[${marker}] session=${data.session_id} seq=${data.sequence} reply_to=${data.reply_to}: ${parts}`);
res.writeHead(200, { 'Content-Type': 'application/json' }).end(JSON.stringify({ ok: true }));
});
});
server.listen(port, () => console.log(`callback receiver listening on http://0.0.0.0:${port}/ (Ctrl-C to stop)`));
}
// --- CLI ---
const [cmd, ...rest] = process.argv.slice(2);
if (cmd === 'serve') {
startReceiver(Number(rest[0] ?? 8900), rest[1] ?? 'SHARED_SECRET');
} else if (cmd === 'push') {
push(rest[0], rest[1], rest[2], rest[3]);
} else if (cmd === 'sync') {
pushSync(rest[0], rest[1], rest[2], rest[3]);
} else if (cmd === 'reset') {
reset(rest[0], rest[1], rest[2]);
} else if (cmd) {
console.error(`unknown command: ${cmd}`);
process.exit(1);
}
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#!/usr/bin/env python3
"""LangBot HTTP Bot — interactive playground (public, browser-based).
This is a REAL end-to-end demo against the RUNNING LangBot instance on this
host. It is NOT a mock and NOT an in-process import: every message you type in
the browser is signed and POSTed to the live `http_bot` bot at
http://127.0.0.1:5300/bots/<uuid>, and the bot's replies come back to this
server's /callback endpoint over real HTTP, then stream to your browser via SSE.
What it does on startup:
1. Reads the LangBot API key + the http_bot bot from data/langbot.db.
2. Configures the bot via the LangBot API (PUT /api/v1/platform/bots/<uuid>):
sets inbound_secret + outbound_secret + callback_url to point back here.
(LangBot reloads the bot live — no server restart needed.)
3. Serves a chat page on 0.0.0.0:<PORT> so you can open it from the internet.
Run: ./.venv/bin/python examples/http-bot/playground.py
Then open: http://<this-host-public-ip>:<PORT>/
"""
from __future__ import annotations
import asyncio
import json
import os
import sqlite3
import sys
REPO = os.path.abspath(os.path.join(os.path.dirname(__file__), '..', '..'))
sys.path.insert(0, os.path.join(REPO, 'src'))
from aiohttp import web # noqa: E402
import aiohttp # noqa: E402
from langbot.pkg.platform.sources import http_bot_signing as sg # noqa: E402
# ---- config -----------------------------------------------------------------
LANGBOT_BASE = 'http://127.0.0.1:5300'
DB_PATH = os.path.join(REPO, 'data', 'langbot.db')
PUBLIC_IP = os.environ.get('PUBLIC_IP', '127.0.0.1')
PORT = int(os.environ.get('PLAYGROUND_PORT', '8920'))
SECRET = 'playground-shared-secret'
# SSE subscribers: list of asyncio.Queue
subscribers: list[asyncio.Queue] = []
def db_lookup() -> tuple[str, str]:
"""Return (api_key, http_bot_uuid) from the LangBot DB."""
db = sqlite3.connect(DB_PATH)
db.row_factory = sqlite3.Row
api_key = db.execute('SELECT key FROM api_keys LIMIT 1').fetchone()['key']
bot = db.execute("SELECT uuid FROM bots WHERE adapter='http_bot' LIMIT 1").fetchone()
if not bot:
raise SystemExit('No http_bot bot found. Create one in the WebUI first.')
return api_key, bot['uuid']
async def configure_bot(api_key: str, bot_uuid: str, callback_url: str):
"""Point the live bot at this playground via the LangBot API.
update_bot() runs a raw SQL UPDATE with whatever keys we send, so we send a
MINIMAL payload: only adapter_config (built from scratch, not read back —
the GET masks secrets). LangBot reloads + reruns the bot live.
"""
cfg = {
'inbound_secret': SECRET,
'outbound_secret': SECRET,
'callback_url': callback_url,
'signature_required': True,
'default_session_type': 'person',
'callback_timeout': 15,
'callback_max_retries': 3,
}
async with aiohttp.ClientSession() as s:
async with s.put(
f'{LANGBOT_BASE}/api/v1/platform/bots/{bot_uuid}',
headers={'Authorization': f'Bearer {api_key}', 'Content-Type': 'application/json'},
json={'adapter_config': cfg},
) as r:
txt = await r.text()
print(f'[configure] PUT adapter_config -> {r.status} {txt[:200]}')
return r.status < 400
async def broadcast(event: dict):
for q in list(subscribers):
try:
q.put_nowait(event)
except Exception:
pass
# ---- HTTP handlers ----------------------------------------------------------
async def index(request: web.Request):
return web.Response(text=PAGE, content_type='text/html')
async def send(request: web.Request):
"""Browser -> here -> signed POST -> live LangBot bot."""
body_in = await request.json()
session_id = body_in.get('session_id') or 'playground-1'
text = body_in.get('text', '')
bot_uuid = request.app['bot_uuid']
payload = {
'session_id': session_id,
'sender': {'id': 'browser-user', 'name': 'You'},
'message': [{'type': 'Plain', 'text': text}],
}
raw = json.dumps(payload, ensure_ascii=False).encode()
ts, sig = sg.sign(SECRET, raw)
url = f'{LANGBOT_BASE}/bots/{bot_uuid}'
# echo what we send to the browser timeline
await broadcast(
{'dir': 'out', 'kind': 'request', 'session_id': session_id, 'text': text, 'url': url, 'sig': sig[:24] + ''}
)
async with aiohttp.ClientSession() as s:
async with s.post(
url,
data=raw,
headers={
'Content-Type': 'application/json',
sg.HEADER_TIMESTAMP: ts,
sg.HEADER_SIGNATURE: sig,
},
) as r:
status = r.status
try:
jr = await r.json()
except Exception:
jr = {'raw': await r.text()}
await broadcast({'dir': 'in', 'kind': 'ack', 'status': status, 'data': jr})
return web.json_response({'status': status, 'data': jr})
async def callback(request: web.Request):
"""Live LangBot bot -> here. Verify signature, stream to browser."""
raw = await request.read()
ok, why = sg.verify(SECRET, raw, request.headers.get(sg.HEADER_TIMESTAMP), request.headers.get(sg.HEADER_SIGNATURE))
data = json.loads(raw)
text = ' '.join(c.get('text', '') for c in data.get('message', []) if c.get('type') == 'Plain')
await broadcast(
{
'dir': 'in',
'kind': 'reply',
'session_id': data.get('session_id'),
'sequence': data.get('sequence'),
'is_final': data.get('is_final'),
'sig_ok': ok,
'sig_why': why,
'text': text,
}
)
return web.json_response({'ok': True})
async def events(request: web.Request):
"""SSE stream to the browser."""
resp = web.StreamResponse(
headers={
'Content-Type': 'text/event-stream',
'Cache-Control': 'no-cache',
'Connection': 'keep-alive',
'Access-Control-Allow-Origin': '*',
}
)
await resp.prepare(request)
q: asyncio.Queue = asyncio.Queue()
subscribers.append(q)
try:
await resp.write(b': connected\n\n')
while True:
try:
ev = await asyncio.wait_for(q.get(), timeout=15)
await resp.write(f'data: {json.dumps(ev, ensure_ascii=False)}\n\n'.encode())
except asyncio.TimeoutError:
await resp.write(b': ping\n\n')
except (asyncio.CancelledError, ConnectionResetError):
pass
finally:
if q in subscribers:
subscribers.remove(q)
return resp
PAGE = r"""<!doctype html>
<html lang="zh"><head><meta charset="utf-8"/>
<meta name="viewport" content="width=device-width,initial-scale=1"/>
<title>LangBot HTTP Bot · 调试台</title>
<style>
:root{
--bg:#f7f8fa; --panel:#ffffff; --line:#e8eaed; --ink:#1f2329; --mut:#8a909a;
--brand:#2563eb; --brand-soft:#eef3ff; --ok:#16a34a; --bad:#dc2626; --code:#f3f4f6;
}
*{box-sizing:border-box}
html,body{height:100%}
body{margin:0;background:var(--bg);color:var(--ink);
font:14px/1.6 -apple-system,BlinkMacSystemFont,"Segoe UI",Roboto,"PingFang SC","Microsoft YaHei",sans-serif}
.top{height:52px;background:var(--panel);border-bottom:1px solid var(--line);
display:flex;align-items:center;gap:10px;padding:0 18px}
.logo{width:26px;height:26px;border-radius:7px;background:var(--brand);display:grid;place-items:center;color:#fff;font-weight:700;font-size:14px}
.top b{font-size:15px} .top .ver{font-size:12px;color:var(--mut)}
.dot{width:8px;height:8px;border-radius:50%;background:#cbd2dc;display:inline-block;margin-right:5px;vertical-align:middle}
.dot.on{background:var(--ok)} .dot.off{background:var(--bad)}
.conn{margin-left:auto;font-size:12px;color:var(--mut)}
.wrap{max-width:1080px;margin:0 auto;padding:18px;display:grid;grid-template-columns:1fr 360px;gap:16px}
@media(max-width:880px){.wrap{grid-template-columns:1fr}}
.card{background:var(--panel);border:1px solid var(--line);border-radius:12px;display:flex;flex-direction:column;min-height:0}
.card h3{margin:0;padding:12px 16px;font-size:13px;font-weight:600;color:#4b5563;border-bottom:1px solid var(--line);display:flex;align-items:center;gap:8px}
.chat{height:62vh}
.msgs{flex:1;overflow:auto;padding:16px;display:flex;flex-direction:column;gap:12px}
.row{display:flex;flex-direction:column;gap:4px;max-width:82%}
.row.me{align-self:flex-end;align-items:flex-end}
.row.bot{align-self:flex-start}
.bub{padding:9px 13px;border-radius:12px;white-space:pre-wrap;word-break:break-word}
.me .bub{background:var(--brand);color:#fff;border-bottom-right-radius:3px}
.bot .bub{background:#f1f3f6;color:var(--ink);border-bottom-left-radius:3px}
.meta{font-size:11px;color:var(--mut)}
.meta .ok{color:var(--ok)} .meta .bad{color:var(--bad)}
.sys{align-self:center;font-size:12px;color:var(--mut);background:#f1f3f6;border-radius:8px;padding:4px 12px}
.bar{display:flex;gap:8px;padding:12px;border-top:1px solid var(--line)}
.bar input{flex:1;border:1px solid var(--line);border-radius:9px;padding:10px 12px;font-size:14px;outline:none}
.bar input:focus{border-color:var(--brand);box-shadow:0 0 0 3px var(--brand-soft)}
.bar button{background:var(--brand);color:#fff;border:0;border-radius:9px;padding:0 18px;font-size:14px;font-weight:500;cursor:pointer}
.bar button:disabled{opacity:.5;cursor:default}
.side{height:62vh}
.kv{padding:12px 16px;border-bottom:1px solid var(--line);font-size:12px}
.kv .k{color:var(--mut)} .kv .v{color:var(--ink);word-break:break-all}
.kv code{background:var(--code);border-radius:5px;padding:1px 5px;font-size:11px}
.sessrow{display:flex;align-items:center;gap:8px;padding:10px 16px;border-bottom:1px solid var(--line);font-size:12px}
.sessrow input{flex:1;border:1px solid var(--line);border-radius:7px;padding:5px 8px;font-size:12px}
.sessrow button{border:1px solid var(--line);background:#fff;border-radius:7px;padding:5px 9px;font-size:12px;cursor:pointer;color:#4b5563}
.trace{flex:1;overflow:auto;padding:10px 12px;font:11px/1.55 ui-monospace,SFMono-Regular,Menlo,monospace}
.ev{padding:6px 8px;border-radius:7px;margin-bottom:6px;border:1px solid var(--line)}
.ev .t{font-weight:600;font-size:10px;letter-spacing:.3px;text-transform:uppercase}
.ev.out{background:#f5f8ff;border-color:#dbe6ff}.ev.out .t{color:var(--brand)}
.ev.ack{background:#f4f6f8}.ev.ack .t{color:#6b7280}
.ev.reply{background:#f1faf3;border-color:#cdeed6}.ev.reply .t{color:var(--ok)}
.ev pre{margin:3px 0 0;white-space:pre-wrap;word-break:break-all;color:#374151}
</style></head>
<body>
<div class="top">
<div class="logo">L</div>
<b>HTTP Bot 调试台</b><span class="ver">examples/http-bot</span>
<span class="conn"><span class="dot off" id="cdot"></span><span id="conn">连接中…</span></span>
</div>
<div class="wrap">
<!-- chat -->
<div class="card chat">
<h3>对话 · 真实发往运行中的 http_bot</h3>
<div class="msgs" id="msgs"></div>
<div class="bar">
<input id="msg" placeholder="输入消息,回车发送…" autofocus/>
<button id="send">发送</button>
</div>
</div>
<!-- debug -->
<div class="card side">
<h3>调试信息</h3>
<div class="kv"><span class="k">入站地址</span><br><span class="v"><code id="endpoint">/bots/&lt;uuid&gt;</code></span></div>
<div class="kv"><span class="k">签名</span> <span class="v">HMAC-SHA256 · <code>X-LB-Signature</code></span></div>
<div class="sessrow">
<span class="k">会话</span>
<input id="sid" value="playground-1"/>
<button id="reset">新会话</button>
</div>
<div class="trace" id="trace"></div>
</div>
</div>
<script>
const $=s=>document.querySelector(s);
const msgs=$('#msgs'),trace=$('#trace'),inp=$('#msg'),btn=$('#send'),
conn=$('#conn'),cdot=$('#cdot'),sidIn=$('#sid');
function el(c){const d=document.createElement('div');d.className=c;return d}
function atBottom(n){n.scrollTop=n.scrollHeight}
function bubble(side,text,metaHtml){
const r=el('row '+side),b=el('bub');b.textContent=text;r.appendChild(b);
if(metaHtml){const m=el('meta');m.innerHTML=metaHtml;r.appendChild(m)}
msgs.appendChild(r);atBottom(msgs)}
function sys(t){const d=el('sys');d.textContent=t;msgs.appendChild(d);atBottom(msgs)}
function logEv(kind,title,obj){
const e=el('ev '+kind),t=el('t');t.textContent=title;e.appendChild(t);
if(obj!==undefined){const p=document.createElement('pre');
p.textContent=typeof obj==='string'?obj:JSON.stringify(obj,null,2);e.appendChild(p)}
trace.appendChild(e);atBottom(trace)}
const es=new EventSource('/events');
es.onopen=()=>{conn.textContent='SSE 已连接';cdot.className='dot on'};
es.onerror=()=>{conn.textContent='SSE 断开,重连…';cdot.className='dot off'};
es.onmessage=e=>{const ev=JSON.parse(e.data);
if(ev.kind==='request'){
if(ev.endpoint)$('#endpoint').textContent=ev.url||ev.endpoint;
logEv('out','出站 · 已签名 POST',{url:ev.url,session_id:ev.session_id,'X-LB-Signature':ev.sig});
}else if(ev.kind==='ack'){
const id=ev.data&&ev.data.data&&ev.data.data.accepted_message_id;
sys(`LangBot 已接收 · HTTP ${ev.status}`);
logEv('ack','入站确认 202',{status:ev.status,accepted_message_id:id||'-'});
}else if(ev.kind==='reply'){
const sig=ev.sig_ok?'<span class=ok>验签通过</span>':'<span class=bad>验签失败</span>';
bubble('bot',ev.text,`seq=${ev.sequence} · ${ev.is_final?'<b>FINAL</b>':'中间段'} · ${sig}`);
logEv('reply',`回调 · seq ${ev.sequence}${ev.is_final?' · FINAL':''}`,
{session_id:ev.session_id,sequence:ev.sequence,is_final:ev.is_final,sig_ok:ev.sig_ok,text:ev.text});
}};
async function send(){
const t=inp.value.trim();if(!t)return;inp.value='';btn.disabled=true;
bubble('me',t,'已签名 → POST /bots/&lt;uuid&gt;');
try{await fetch('/send',{method:'POST',headers:{'Content-Type':'application/json'},
body:JSON.stringify({session_id:sidIn.value.trim()||'playground-1',text:t})});}
catch(e){sys('发送失败:'+e)}
btn.disabled=false;inp.focus();}
btn.onclick=send;inp.addEventListener('keydown',e=>{if(e.key==='Enter')send()});
$('#reset').onclick=()=>{sidIn.value='playground-'+Math.random().toString(36).slice(2,7);
sys('已切换到新会话 '+sidIn.value);};
sys('调试台就绪 · 每条消息都会真实发往运行中的 http_bot,右侧可观察签名 / 202 / 回调全过程。');
</script>
</body></html>"""
async def main():
api_key, bot_uuid = db_lookup()
callback_url = f'http://{PUBLIC_IP}:{PORT}/callback'
print(f'[init] http_bot uuid = {bot_uuid}')
print(f'[init] callback_url = {callback_url}')
ok = await configure_bot(api_key, bot_uuid, callback_url)
if not ok:
print('[warn] bot config update failed; check the API key / payload shape')
app = web.Application()
app['bot_uuid'] = bot_uuid
app.router.add_get('/', index)
app.router.add_post('/send', send)
app.router.add_post('/callback', callback)
app.router.add_get('/events', events)
runner = web.AppRunner(app)
await runner.setup()
site = web.TCPSite(runner, '0.0.0.0', PORT)
await site.start()
print(f'\n ▶ 打开: http://{PUBLIC_IP}:{PORT}/\n')
while True:
await asyncio.sleep(3600)
if __name__ == '__main__':
asyncio.run(main())
-48
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@@ -1,48 +0,0 @@
# Page Bot Adapter — Embed Demo
> English | [中文](./README.zh.md)
A single self-contained HTML page that demos the LangBot **Page Bot**
(`web_page_bot`) embeddable chat widget — the one you drop onto any website with
a single `<script>` tag.
Full guide: [docs.langbot.app — Page Bot](https://docs.langbot.app/en/usage/platforms/webpage).
## Files
| File | What it is |
|---|---|
| `index.html` | **Browser demo** — open it, point it at a running LangBot instance + a Page Bot you created, and it loads the live embed widget so you can chat with the bot exactly as a site visitor would. Zero deps, no build step. |
## How to use
1. In the LangBot WebUI, create a bot with the **Page Bot** (`页面机器人`)
adapter and bind it to a working pipeline. Copy its **bot UUID** from the
generated embed code.
2. Open `index.html` in a browser. Any of these work:
- double-click the file, or
- serve the folder: `python3 -m http.server 8930` then open
`http://localhost:8930/examples/web-page-bot/`.
3. Fill in:
- **LangBot base URL** — where your instance is reachable from the browser
(e.g. `http://localhost:5300`, or your public address).
- **Page Bot UUID** — from step 1.
- **Widget title** — optional, sets the `data-title` attribute.
4. Click **Load widget**. A floating chat bubble appears in the bottom-right
corner — click it and chat.
The page also renders the exact `<script>` snippet you'd paste into your own
site (before `</body>`), and updates it live as you edit the fields.
## What it demonstrates
- The embed contract: `<script data-title="…" src="<base>/api/v1/embed/<uuid>/widget.js"></script>`.
- `widget.js` is served by LangBot pre-configured for that bot UUID — title,
bubble icon, language and optional Cloudflare Turnstile protection all come
from the bot's config, no page changes needed.
- Messages travel over a WebSocket to the bot's bound pipeline; replies stream
back into the bubble.
> The widget loads `widget.js` from your LangBot instance, so the **base URL
> must be reachable from the browser** you open this page in. If LangBot runs on
> a server, use its public address instead of `localhost`.
-44
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@@ -1,44 +0,0 @@
# 页面机器人适配器 —— 嵌入演示
> [English](./README.md) | 中文
一个自包含的单文件 HTML 页面,用于演示 LangBot **页面机器人**
(`web_page_bot`) 的可嵌入聊天组件 —— 也就是你用一行 `<script>` 标签就能放到任意
网站上的那个组件。
完整指南:[docs.langbot.app —— 页面机器人](https://docs.langbot.app/zh/usage/platforms/webpage)。
## 文件清单
| 文件 | 是什么 |
|---|---|
| `index.html` | **浏览器演示页** —— 打开它,填上一个运行中的 LangBot 实例地址 + 你创建的页面机器人,它就会加载真实的嵌入组件,让你像网站访客一样和机器人对话。零依赖,无需构建。 |
## 使用方法
1. 在 LangBot WebUI 中,用 **页面机器人**`web_page_bot`)适配器创建一个机器人,
并绑定一个可用的流水线。从生成的嵌入代码里复制它的 **机器人 UUID**
2. 在浏览器中打开 `index.html`,以下任一方式皆可:
- 直接双击该文件;或
- 起一个静态服务:`python3 -m http.server 8930`,然后打开
`http://localhost:8930/examples/web-page-bot/`
3. 填写:
- **LangBot base URL** —— 你的实例在该浏览器中可访问的地址
(例如 `http://localhost:5300`,或你的公网地址)。
- **页面机器人 UUID** —— 第 1 步里复制的。
- **组件标题** —— 可选,对应 `data-title` 属性。
4. 点击 **Load widget**。页面右下角会出现一个浮动聊天气泡 —— 点开即可对话。
页面还会实时渲染出你需要粘贴到自己网站(放在 `</body>` 前)的那段 `<script>`
代码,并随着你编辑输入框同步更新。
## 它演示了什么
- 嵌入契约:`<script data-title="…" src="<base>/api/v1/embed/<uuid>/widget.js"></script>`
- `widget.js` 由 LangBot 针对该机器人 UUID 预配置后下发 —— 标题、气泡图标、语言
以及可选的 Cloudflare Turnstile 防护,全部来自机器人配置,无需改动页面。
- 消息通过 WebSocket 发往机器人绑定的流水线,回复流式回到气泡中。
> 组件会从你的 LangBot 实例加载 `widget.js`,因此 **base URL 必须能从你打开本页
> 的浏览器访问到**。如果 LangBot 部署在服务器上,请用它的公网地址而非
> `localhost`。
-205
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@@ -1,205 +0,0 @@
<!doctype html>
<html lang="en">
<head>
<meta charset="utf-8" />
<meta name="viewport" content="width=device-width, initial-scale=1" />
<title>LangBot Page Bot · Embed Demo</title>
<style>
:root {
--bg: #f7f8fa; --panel: #ffffff; --line: #e8eaed; --ink: #1f2329;
--mut: #8a909a; --brand: #2563eb; --brand-soft: #eef3ff;
--ok: #16a34a; --bad: #dc2626; --code: #f3f4f6;
}
* { box-sizing: border-box; }
html, body { height: 100%; }
body {
margin: 0; background: var(--bg); color: var(--ink);
font: 14px/1.6 -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto,
"PingFang SC", "Microsoft YaHei", sans-serif;
}
.top {
height: 52px; background: var(--panel); border-bottom: 1px solid var(--line);
display: flex; align-items: center; gap: 10px; padding: 0 18px;
}
.logo {
width: 26px; height: 26px; border-radius: 7px; background: var(--brand);
display: grid; place-items: center; color: #fff; font-weight: 700; font-size: 14px;
}
.top b { font-size: 15px; }
.top .ver { font-size: 12px; color: var(--mut); }
.wrap { max-width: 760px; margin: 0 auto; padding: 28px 18px 80px; }
.hero h1 { margin: 8px 0 6px; font-size: 22px; }
.hero p { margin: 0 0 4px; color: var(--mut); }
.card {
background: var(--panel); border: 1px solid var(--line); border-radius: 12px;
padding: 20px; margin-top: 20px;
}
.card h3 {
margin: 0 0 14px; font-size: 14px; font-weight: 600; color: #4b5563;
display: flex; align-items: center; gap: 8px;
}
.card h3 .num {
width: 20px; height: 20px; border-radius: 50%; background: var(--brand-soft);
color: var(--brand); display: grid; place-items: center; font-size: 12px; font-weight: 700;
}
.field { margin-bottom: 14px; }
.field:last-child { margin-bottom: 0; }
.field label { display: block; font-size: 12px; color: var(--mut); margin-bottom: 5px; }
.field input {
width: 100%; border: 1px solid var(--line); border-radius: 9px;
padding: 10px 12px; font-size: 14px; outline: none; font-family: inherit;
}
.field input:focus { border-color: var(--brand); box-shadow: 0 0 0 3px var(--brand-soft); }
.hint { font-size: 12px; color: var(--mut); margin-top: 5px; }
.hint code { background: var(--code); border-radius: 5px; padding: 1px 5px; font-size: 11px; }
.actions { display: flex; gap: 10px; margin-top: 18px; align-items: center; }
button {
border: 0; border-radius: 9px; padding: 10px 18px; font-size: 14px;
font-weight: 500; cursor: pointer; font-family: inherit;
}
.btn-primary { background: var(--brand); color: #fff; }
.btn-primary:disabled { opacity: .5; cursor: default; }
.btn-ghost { background: #fff; border: 1px solid var(--line); color: #4b5563; }
.status { font-size: 13px; color: var(--mut); }
.status .ok { color: var(--ok); }
.status .bad { color: var(--bad); }
pre {
background: #0f172a; color: #e2e8f0; border-radius: 10px; padding: 14px 16px;
overflow: auto; font: 12px/1.6 ui-monospace, SFMono-Regular, Menlo, monospace;
margin: 0;
}
.snippet-row { position: relative; }
.snippet-row .copy {
position: absolute; top: 10px; right: 10px; background: rgba(255,255,255,.12);
color: #fff; border: 0; border-radius: 7px; padding: 5px 10px; font-size: 12px; cursor: pointer;
}
ul.steps { margin: 0; padding-left: 18px; color: #4b5563; }
ul.steps li { margin-bottom: 6px; }
</style>
</head>
<body>
<div class="top">
<div class="logo">L</div>
<b>Page Bot · Embed Demo</b>
<span class="ver">examples/web-page-bot</span>
</div>
<div class="wrap">
<div class="hero">
<h1>Try the LangBot Page Bot widget</h1>
<p>Point this page at a running LangBot instance and a <strong>Page Bot</strong> you created,</p>
<p>then load the live embed widget below to chat with it — exactly as your site visitors would.</p>
</div>
<div class="card">
<h3><span class="num">1</span> Connect your Page Bot</h3>
<div class="field">
<label for="base">LangBot base URL</label>
<input id="base" placeholder="http://localhost:5300" value="http://localhost:5300" />
<div class="hint">The address where your LangBot instance is reachable from this browser. No trailing slash.</div>
</div>
<div class="field">
<label for="uuid">Page Bot UUID</label>
<input id="uuid" placeholder="xxxxxxxx-xxxx-xxxx-xxxx-xxxxxxxxxxxx" />
<div class="hint">Create a bot with the <code>Page Bot</code> adapter in the WebUI, then copy its UUID from the embed code.</div>
</div>
<div class="field">
<label for="title">Widget title (optional)</label>
<input id="title" placeholder="LangBot" value="LangBot" />
</div>
<div class="actions">
<button id="load" class="btn-primary">Load widget</button>
<button id="unload" class="btn-ghost">Remove widget</button>
<span class="status" id="status">Not loaded.</span>
</div>
</div>
<div class="card">
<h3><span class="num">2</span> The embed snippet</h3>
<p style="margin:0 0 12px;color:var(--mut)">This is exactly what you paste into your own site (before <code>&lt;/body&gt;</code>). It updates as you edit the fields above.</p>
<div class="snippet-row">
<button class="copy" id="copy">Copy</button>
<pre id="snippet">&lt;script data-title="LangBot" src="http://localhost:5300/api/v1/embed/&lt;bot-uuid&gt;/widget.js"&gt;&lt;/script&gt;</pre>
</div>
</div>
<div class="card">
<h3><span class="num">3</span> How it works</h3>
<ul class="steps">
<li>The <code>&lt;script&gt;</code> tag pulls <code>widget.js</code> from your LangBot instance, pre-configured for that bot UUID.</li>
<li>A floating chat bubble appears in the bottom-right corner of the page.</li>
<li>Messages travel over a WebSocket to the bot's bound pipeline; replies stream back into the bubble.</li>
<li>Title, bubble icon, language and optional Cloudflare Turnstile protection are all set in the bot's config — no page changes needed.</li>
</ul>
</div>
</div>
<script>
var $ = function (s) { return document.querySelector(s); };
var baseEl = $("#base"), uuidEl = $("#uuid"), titleEl = $("#title"),
statusEl = $("#status"), snippetEl = $("#snippet");
var WIDGET_ID = "langbot-embed-demo-script";
function clean(v) { return (v || "").trim().replace(/\/+$/, ""); }
function buildSrc() {
var base = clean(baseEl.value) || "http://localhost:5300";
var uuid = uuidEl.value.trim() || "<bot-uuid>";
return base + "/api/v1/embed/" + uuid + "/widget.js";
}
function refreshSnippet() {
var title = titleEl.value.trim() || "LangBot";
var src = buildSrc();
snippetEl.textContent =
'<script data-title="' + title + '" src="' + src + '"><\/script>';
}
function setStatus(html) { statusEl.innerHTML = html; }
function removeWidget() {
var old = document.getElementById(WIDGET_ID);
if (old) old.remove();
// The widget injects its own DOM (bubble + panel). Clear the common containers it creates.
document.querySelectorAll('[id^="langbot-"]').forEach(function (n) {
if (n.id !== WIDGET_ID) n.remove();
});
}
function loadWidget() {
var uuid = uuidEl.value.trim();
var uuidRe = /^[a-f0-9]{8}-[a-f0-9]{4}-[a-f0-9]{4}-[a-f0-9]{4}-[a-f0-9]{12}$/i;
if (!uuidRe.test(uuid)) {
setStatus('<span class="bad">Enter a valid bot UUID first.</span>');
return;
}
removeWidget();
var s = document.createElement("script");
s.id = WIDGET_ID;
s.setAttribute("data-title", titleEl.value.trim() || "LangBot");
s.src = buildSrc();
s.onload = function () {
setStatus('<span class="ok">Widget loaded — look bottom-right.</span>');
};
s.onerror = function () {
setStatus('<span class="bad">Failed to load widget.js — check the base URL and that the bot is enabled.</span>');
};
document.body.appendChild(s);
setStatus("Loading…");
}
$("#load").onclick = loadWidget;
$("#unload").onclick = function () {
removeWidget();
setStatus("Widget removed.");
};
$("#copy").onclick = function () {
navigator.clipboard.writeText(snippetEl.textContent).then(function () {
var b = $("#copy"); b.textContent = "Copied"; setTimeout(function () { b.textContent = "Copy"; }, 1200);
});
};
[baseEl, uuidEl, titleEl].forEach(function (el) { el.addEventListener("input", refreshSnippet); });
refreshSnippet();
</script>
</body>
</html>
+6 -6
View File
@@ -1,6 +1,6 @@
[project]
name = "langbot"
version = "4.10.4"
version = "4.10.2"
description = "Production-grade platform for building agentic IM bots"
readme = "README.md"
license-files = ["LICENSE"]
@@ -8,7 +8,7 @@ requires-python = ">=3.11,<4.0"
dependencies = [
"aiocqhttp>=1.4.4",
"aiofiles>=24.1.0",
"aiohttp>=3.14.1",
"aiohttp>=3.14.0",
"aioshutil>=1.5",
"aiosqlite>=0.21.0",
"anthropic>=0.51.0",
@@ -16,7 +16,7 @@ dependencies = [
"async-lru>=2.0.5",
"certifi>=2025.4.26",
"colorlog~=6.6.0",
"cryptography>=48.0.1",
"cryptography>=46.0.7",
"dashscope>=1.25.10",
"dingtalk-stream>=0.24.0",
"discord-py>=2.5.2",
@@ -61,16 +61,16 @@ dependencies = [
"beautifulsoup4>=4.12.3",
"ebooklib>=0.18",
"html2text>=2024.2.26",
"langchain>=1.3.9",
"langchain>=0.2.0",
"langchain-core>=1.3.3",
"langsmith>=0.8.18",
"langsmith>=0.8.0",
"python-multipart>=0.0.27",
"Mako>=1.3.12",
"langchain-text-splitters>=1.1.2",
"chromadb>=1.0.0,<2.0.0",
"qdrant-client (>=1.15.1,<2.0.0)",
"pyseekdb==1.1.0.post3",
"langbot-plugin==0.4.6",
"langbot-plugin==0.4.5",
"asyncpg>=0.30.0",
"line-bot-sdk>=3.19.0",
"matrix-nio>=0.25.2",
-32
View File
@@ -42,38 +42,6 @@ MyPlugin/
Each component has a `.yaml` (metadata) and `.py` (implementation).
## README & i18n convention (enforced on the marketplace)
A plugin published to LangBot Space serves a localized README on its detail page.
The resolver (`langbot-space` `PluginService.GetPluginREADME`) works like this:
- **Root `README.md` MUST be in English.** It is the default and the fallback —
when no per-language README matches the viewer's locale, the page serves the
root `README.md`. A non-English root README makes the English/default view show
the wrong language.
- **All other languages live under `readme/README_{lang}.md`** — e.g.
`readme/README_zh_Hans.md`, `readme/README_ja_JP.md`. The 8 supported locales:
`en_US, zh_Hans, zh_Hant, ja_JP, th_TH, vi_VN, es_ES, ru_RU`.
- `manifest.yaml` `metadata.label` / `metadata.description` should carry the same
8-locale i18n set (`repository` must be a real, alive URL).
```
MyPlugin/
├── manifest.yaml
├── README.md # English (default + fallback) — REQUIRED, must be English
└── readme/
├── README_zh_Hans.md
├── README_zh_Hant.md
├── README_ja_JP.md
├── README_th_TH.md
├── README_vi_VN.md
├── README_es_ES.md
└── README_ru_RU.md
```
`manifest.yaml` (incl. `repository`) is the source of truth — the marketplace
syncs from it, so edit the package and re-publish rather than patching live data.
## Critical SDK Pitfalls
### 1. MessageChain is a RootModel — iterate directly
@@ -0,0 +1,58 @@
id: skill-discovery-via-mcp-gateway
title: "External harness discovers LangBot skills via langbot_list_assets (all-tool model)"
mode: agent-browser
area: sandbox
type: regression
priority: p2
risk: medium
ci_eligible: false
tags:
- skills
- mcp-gateway
- acp-agent-runner
- all-tool-model
- tools
skills:
- langbot-env-setup
- langbot-testing
env:
- LANGBOT_FRONTEND_URL
- LANGBOT_BACKEND_URL
- LANGBOT_ACP_AGENT_RUNNER_PIPELINE_URL
- LANGBOT_ACP_AGENT_RUNNER_PIPELINE_NAME
preconditions:
- "An external-harness runner pipeline (e.g. ACP remote claude-code) is configured with langbot-assets-enabled=true so the LangBot MCP gateway is exposed to the harness."
- "The remote harness (claude-code) is reachable and responsive (claude -p returns within the runner timeout)."
- "At least one pipeline-visible skill exists in the Box skill store (otherwise the count is 0, which is still a valid pass for the discovery surface)."
automation: scripts/e2e/pipeline-debug-chat.mjs
automation_env:
- LANGBOT_FRONTEND_URL
- LANGBOT_BROWSER_PROFILE
- LANGBOT_CHROMIUM_EXECUTABLE
- LANGBOT_ACP_AGENT_RUNNER_PIPELINE_URL
- LANGBOT_ACP_AGENT_RUNNER_PIPELINE_NAME
automation_pipeline_url_env: LANGBOT_ACP_AGENT_RUNNER_PIPELINE_URL
automation_pipeline_name_env: LANGBOT_ACP_AGENT_RUNNER_PIPELINE_NAME
automation_prompt: "You have LangBot tools available via an MCP server (tools prefixed langbot_). Call langbot_list_assets with asset_types = [\"skills\",\"tools\"]. Then reply with one single line: the literal token PROBEDONE, a space, the number of skills you found, a space, and the number of tools you found."
automation_expected_text: "PROBEDONE"
automation_response_timeout_ms: "540000"
steps:
- "Open LANGBOT_FRONTEND_URL and navigate to the external-harness (ACP) pipeline."
- "Open Debug Chat with langbot-assets-enabled on the runner."
- "Send the automation_prompt asking the harness to call langbot_list_assets with asset_types [skills, tools]."
- "Capture the final reply, backend logs, and the MCP gateway call trace."
checks:
- "UI: final reply contains PROBEDONE followed by a skill count and a tool count."
- "Logs: backend shows the harness invoked langbot_list_assets and the response included a 'skills' asset class (this is the all-tool-model discovery surface added on this branch)."
- "Behavior parity: a local-agent runner reaches the same skills via use_funcs / activate; the external harness reaches them via langbot_list_assets + langbot_call_tool."
evidence_required:
- ui
- screenshot
- backend_log
expected_failures:
- "runner.timeout when the remote claude-code harness is unauthenticated or slow to start — this is an environment issue, not a discovery-surface regression."
diagnostics:
- "If runner.timeout: ssh into the harness host and confirm `claude -p 'hi'` returns quickly; the ACP runner cannot complete until the harness responds."
- "Activated-skill OPERATE on docker+shared-fs is tracked separately by issue #2271 and is out of scope for this discovery case."
troubleshooting:
- sandbox-native-tools-unavailable
@@ -0,0 +1,68 @@
# Acceptance matrix — skill all-tool model
Acceptance criteria for the branch that unifies LangBot skills as **authorized
tools** (`feat/agent-runner-plugin`). Skills are no longer gated behind the
`skill_authoring` capability; `activate` / `register_skill` / native `exec` are
exposed like native tools, gated only on **sandbox + skill_mgr**. Discovery is
tool-driven (`langbot_list_assets` gains a `skills` asset class for external
harnesses). Host persists activated skills to `host.activated_skills`
(last-write-wins) and prefills `ToolResource.parameters` so runners skip
per-tool `get_tool_detail`.
## What changed (scope under test)
| Layer | Change |
| --- | --- |
| host | `toolmgr.get_all_tools` drops `include_skill_authoring`; `SkillToolLoader` self-gates on sandbox+skill_mgr |
| host | `preproc` drops the `include_skill_authoring` branch; bound-skills + skills resource gate on `skill_mgr` |
| host | `resource_builder` stops gating skills on `skill_authoring`; fills `ToolResource.parameters` via `tool_mgr.get_tool_schema` |
| host | `persist_activated_skill` writes `host.activated_skills` (conversation scope) |
| sdk | `ToolResource.parameters` (full JSON schema); `langbot_list_assets` `skills` asset class |
| local-agent | `build_llm_tools` prefers `ctx.resources.tools.parameters`, falls back to `get_tool_detail`; `DEFAULT_MAX_TOOL_ITERATIONS` 20→100 |
## Dimensions
- **Runner**: `local-agent` (in-process logic, direct Run API, skill tools in `use_funcs`) · `acp-agent-runner` (external harness, remote-ssh claude-code over ACP, MCP gateway via **HTTP proxy**) · `claude-code-agent` (external harness, claude-code CLI, MCP gateway via **stdio bridge** — pipeline `28fd37ac`, remote-ssh→101).
### Runner transport difference (both work out-of-the-box on remote-ssh)
Both external runners receive the same host-generated gateway `AgentMCPServerConfig`, but inject it differently — and **both are made remote-reachable automatically; neither requires `public-url` on remote-ssh**:
- **claude-code-agent → stdio bridge.** The mcp config is shipped to the remote host base64-over-SSH-stdin and consumed via `--mcp-config`; the gateway entry is a `command/args` (stdio) MCP server whose process tunnels back to the host over the SSH stdio pipe.
- **acp-agent-runner → HTTP proxy + SSH reverse tunnel.** The gateway is a localhost HTTP MCP proxy passed via ACP `session/new {mcpServers}`. On `remote-ssh` with no `public-url`, the SDK's `AgentRunMCPAccess` (`mcp_access.py` `_remote_reverse_tunnel`: location==remote-ssh and empty public_url) emits an `ssh -R 127.0.0.1:<port>:127.0.0.1:<port>` reverse tunnel — consumed by acp `default.py:521` (`ssh_args.extend(access.reverse_tunnel.ssh_args())`) — and points `server_config.public_url` at the host-local `http_mcp_endpoint`. The remote claude hits `127.0.0.1:<port>` which tunnels back to the host bridge. **`langbot-assets-gateway-public-url` is an optional alternative for topologies where the reverse tunnel can't be used — not a requirement.**
This is a **runner-plugin transport detail, not a host all-tool-branch issue** — proven by **both** runners discovering skills end-to-end with the unmodified branch (see cases below).
> **Correction (2026-06-22).** An earlier revision of this doc claimed acp was "blocked" on remote-ssh and *required* `langbot-assets-gateway-public-url`, based on a run that returned `PROBEDONE 0 0` / timeout. That was an **environment artifact, not an acp defect**: a duplicate backend instance (a second checkout `LangBot-master/` whose box runtime contended for the same `--ws-control-port 5410`) plus a wedged plugin runtime (host `emit_event` / `list_agent_runners` action calls timing out with `ActionCallTimeoutError`). Re-run on a clean single-instance runtime, **acp passes via the reverse tunnel with no `public-url`** (`PROBEDONE 1 17`, 824s).
- **Lifecycle**: discover → activate → operate (native exec under the activated mount path) → register.
- **Backend**: docker · nsjail · e2b.
## Cases & status
| Case | Asserts | Runner(s) | Status |
| --- | --- | --- | --- |
| `skill-tool-exposure-no-capability` | skill tools offered to a tool-calling runner **without** `skill_authoring`; gated only on sandbox+skill_mgr | local-agent | **covered (unit)**`test_tool_manager_native.py`, `test_preproc.py` |
| `skill-activation-persistence` | activated skill survives a new run in the same conversation (`host.activated_skills` restore) | local-agent | **covered (unit)**`test_skill_tools.py` |
| `toolresource-parameters-prefill` | runner builds LLM tools from `ctx.resources.tools.parameters` without per-tool `get_tool_detail` | local-agent | **covered (unit)**`test_run_assembly.py::test_build_llm_tools_uses_prefilled_schema_without_fetch` |
| `regression-existing-runner-behavior` | existing local-agent cases (basic/rag/tool-call/steering/multimodal) unchanged | local-agent | **covered (unit)** — full host/sdk/local-agent suites green, 0 new failures |
| `sandbox-skill-authoring-e2e` | create → register → activate → exec-from-activated-path → `E2E_OK` | local-agent | **PASS (nsjail + docker)** — full chain green via local-agent Debug Chat (pipeline `3e645b04`): create+run in `/workspace``exit 0` `SANDBOX_COMPLEX_SKILL_OK sum=10 product=24`; register+activate; exec in `/workspace/.skills/<name>` runs `scripts/use.py` (reads `data/input.json`) and writes `activated_writeback.txt``exit 0`, both markers, file written through to host skill store. Verified on **nsjail** first, then on **docker** after the #2271 fix ([langbot-plugin-sdk#87](https://github.com/langbot-app/langbot-plugin-sdk/pull/87)). |
| `skill-discovery-via-mcp-gateway` | external harness calls `langbot_list_assets(['skills'])` and receives pipeline-visible skills | claude-code / acp | **PASS (both)** — clean single-instance runtime, remote-ssh→101. claude-code-agent (pipeline `28fd37ac`, stdio bridge): `PROBEDONE skills=1 tools=15`. acp-agent-runner (pipeline `b00794d2`, HTTP proxy + SSH reverse tunnel, **no public-url**): `PROBEDONE skills=1 tools=17`, 824s. Both prove the all-tool `skills` asset class is discoverable end-to-end by an external harness. |
| `skill-activation-cross-runner-parity` | local-agent and external harness both reach skills via their paths (`use_funcs` vs `langbot_call_tool`) | local-agent + claude-code + acp | **PASS** — local-agent (use_funcs) ✓, claude-code-agent (stdio gateway, `skills=1 tools=15`) ✓, and acp-agent-runner (HTTP-proxy gateway over reverse tunnel, `skills=1 tools=17`) ✓ all discover skills. `skills` count matches (1==1); the `tools` count (17 vs 15) is claude's self-reported tally and not yet checked against the authoritative gateway count — most likely model-counting variance, not an asset difference. |
## Known issues
- [#2271](https://github.com/langbot-app/LangBot/issues/2271) — activated `/workspace/.skills/<name>` `scripts/`/`data/` missing on the docker backend. **FIXED** by [langbot-plugin-sdk#87](https://github.com/langbot-app/langbot-plugin-sdk/pull/87) (`fix(box): recreate sandbox container when extra_mounts change`), rebased into this branch. **Corrected root cause:** not "docker masks the nested bind mount" (disproven) — the real bug is **container reuse**: `extra_mounts` was not part of the box session compatibility check, so when a skill is activated mid-conversation docker reused the already-running container and could not append the new bind mount; the activated skill therefore appeared empty. The fix records a mount signature on the session and recreates the container when the mount set changes (idempotent, no data loss). Pre-existing (Feat/sandbox #2072), reproduced on pure `origin/master` + the built-in local-agent runner, so not introduced by this branch — this branch only exposed the path end-to-end for the first time. After the fix, the OPERATE step passes on **both** docker and nsjail (see exit criterion 3). Merging needs a new SDK release + a `langbot-plugin` pin bump in LangBot's `pyproject.toml` to reach a released LangBot.
- **nsjail + stale docker workspace artifacts (environment, not a code bug).** If a prior docker run left root-owned dirs under the workspace (e.g. `data/box/default/.skills/`, created root-owned because docker runs as root), nsjail — which runs as the invoking user — cannot create the nested skill mount target under that root-owned dir and `runChild()` fails with `Launching child process failed`, poisoning **every** exec in the session (the exact symptom documented in `box/service.py::build_skill_extra_mounts`). Fix: remove the root-owned leftovers (`sudo rm -rf data/box/default/.skills data/box/default/<stale-skill>`) before running nsjail e2e. New nsjail runs create user-owned artifacts, so this is a one-time cleanup after switching off docker.
## Exit criteria
1. Unit matrix green across host/sdk/local-agent, 0 new failures. **(DONE)**
2. `skill-tool-exposure-no-capability` + `skill-activation-persistence` + `toolresource-parameters-prefill` covered by unit. **(DONE)**
3. `sandbox-skill-authoring-e2e` OPERATE step passes on a real backend, proving end-to-end skill use. **(DONE — nsjail + docker)** — full create→exec→register→activate→exec-from-`/workspace/.skills/<name>` chain returns `exit 0`; the activated mount runs `scripts/use.py` (reads `data/input.json``SANDBOX_COMPLEX_SKILL_OK sum=10 product=24`) and writes `activated_writeback.txt` through to the host skill store. Verified on nsjail, then on docker after the #2271 fix ([langbot-plugin-sdk#87](https://github.com/langbot-app/langbot-plugin-sdk/pull/87)).
4. `skill-discovery-via-mcp-gateway` passes on an external harness. **(DONE — claude-code-agent: skills=1 tools=15, 24s)**
5. `skill-activation-cross-runner-parity` passes on acp. **(DONE — acp: skills=1 tools=17, 8s, via SSH reverse tunnel with no public-url; clean single-instance runtime)**
## How to run
- **Unit**: LangBot `make test`; SDK `uv run pytest`; local-agent `uv run pytest tests/`.
- **Browser e2e**: per-pipeline Debug Chat; canonical skill prompt pattern in [`sandbox-skill-authoring.md`](./sandbox-skill-authoring.md). Automatable cases use the `automation_*` fields + `scripts/e2e/pipeline-debug-chat.mjs`.
+1 -3
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@@ -1,5 +1,3 @@
"""LangBot - Production-grade platform for building agentic IM bots"""
from importlib.metadata import version
__version__ = version('langbot')
__version__ = '4.10.2'
+37
View File
@@ -0,0 +1,37 @@
"""Agent runner subsystem for LangBot."""
from __future__ import annotations
from .runner.descriptor import AgentRunnerDescriptor
from .runner.id import parse_runner_id, format_runner_id, RunnerIdParts, is_plugin_runner_id
from .runner.errors import (
AgentRunnerError,
RunnerNotFoundError,
RunnerNotAuthorizedError,
RunnerProtocolError,
RunnerExecutionError,
)
from .runner.registry import AgentRunnerRegistry
from .runner.context_builder import AgentRunContextBuilder
from .runner.resource_builder import AgentResourceBuilder
from .runner.result_normalizer import AgentResultNormalizer
from .runner.orchestrator import AgentRunOrchestrator
from .runner.config_migration import ConfigMigration
__all__ = [
'AgentRunnerDescriptor',
'parse_runner_id',
'format_runner_id',
'is_plugin_runner_id',
'RunnerIdParts',
'AgentRunnerError',
'RunnerNotFoundError',
'RunnerNotAuthorizedError',
'RunnerProtocolError',
'RunnerExecutionError',
'AgentRunnerRegistry',
'AgentRunContextBuilder',
'AgentResourceBuilder',
'AgentResultNormalizer',
'AgentRunOrchestrator',
'ConfigMigration',
]
+66
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@@ -0,0 +1,66 @@
"""Agent runner modules."""
from __future__ import annotations
from .descriptor import AgentRunnerDescriptor
from .id import parse_runner_id, format_runner_id, RunnerIdParts
from .errors import (
AgentRunnerError,
RunnerNotFoundError,
RunnerNotAuthorizedError,
RunnerProtocolError,
RunnerExecutionError,
)
from .registry import AgentRunnerRegistry
from .context_builder import AgentRunContextBuilder
from .resource_builder import AgentResourceBuilder
from .result_normalizer import AgentResultNormalizer
from .orchestrator import AgentRunOrchestrator
from .config_migration import ConfigMigration
from .default_config import AgentRunnerDefaultConfigService
from .binding_resolver import AgentBindingResolver, AgentBindingResolutionError
from .session_registry import (
AgentRunSessionRegistry,
AgentRunSession,
RunAuthorizationSnapshot,
get_session_registry,
)
from .run_ledger_store import RunLedgerStore
from .events import (
MESSAGE_RECEIVED,
MESSAGE_RECALLED,
GROUP_MEMBER_JOINED,
FRIEND_REQUEST_RECEIVED,
RESERVED_EVENT_TYPES,
)
__all__ = [
'AgentRunnerDescriptor',
'parse_runner_id',
'format_runner_id',
'RunnerIdParts',
'AgentRunnerError',
'RunnerNotFoundError',
'RunnerNotAuthorizedError',
'RunnerProtocolError',
'RunnerExecutionError',
'AgentRunnerRegistry',
'AgentRunContextBuilder',
'AgentResourceBuilder',
'AgentResultNormalizer',
'AgentRunOrchestrator',
'ConfigMigration',
'AgentRunnerDefaultConfigService',
'AgentBindingResolver',
'AgentBindingResolutionError',
'AgentRunSessionRegistry',
'AgentRunSession',
'RunAuthorizationSnapshot',
'get_session_registry',
'RunLedgerStore',
'MESSAGE_RECEIVED',
'MESSAGE_RECALLED',
'GROUP_MEMBER_JOINED',
'FRIEND_REQUEST_RECEIVED',
'RESERVED_EVENT_TYPES',
]
@@ -0,0 +1,70 @@
"""Resolve host events to one effective Agent binding."""
from __future__ import annotations
from .host_models import AgentConfig, AgentBinding, AgentEventEnvelope, BindingScope
class AgentBindingResolutionError(Exception):
"""Raised when an event cannot resolve to exactly one Agent binding."""
class AgentBindingResolver:
"""Resolve an event to a single AgentBinding.
The target product model is one bot / IM channel -> one Agent. Fan-out,
observer agents, or multi-runner arbitration require separate delivery and
state semantics and are intentionally not hidden in this resolver.
"""
def resolve_one(
self,
event: AgentEventEnvelope,
agents: list[AgentConfig],
) -> AgentBinding:
"""Resolve exactly one enabled Agent for the event.
Callers that source agents from bot/workspace/global configuration must
pre-filter candidates to the event scope before calling this resolver.
The current AgentConfig model represents one already-selected product
Agent and does not carry enough scope metadata to make that decision
safely here.
"""
matches = [
agent
for agent in agents
if agent.enabled and event.event_type in agent.event_types
]
if not matches:
raise AgentBindingResolutionError(
f'No Agent binding matches event_type={event.event_type}'
)
if len(matches) > 1:
agent_ids = ', '.join(agent.agent_id or '<anonymous>' for agent in matches)
raise AgentBindingResolutionError(
f'Multiple Agent bindings match event_type={event.event_type}: {agent_ids}'
)
return self._to_binding(matches[0])
def _to_binding(self, agent: AgentConfig) -> AgentBinding:
"""Project product-level Agent config into the run-time binding model."""
scope = BindingScope(
scope_type='agent',
scope_id=agent.agent_id,
)
return AgentBinding(
binding_id=f"agent_{agent.agent_id or 'default'}_{agent.runner_id}",
scope=scope,
event_types=list(agent.event_types),
runner_id=agent.runner_id,
runner_config=agent.runner_config,
resource_policy=agent.resource_policy,
state_policy=agent.state_policy,
delivery_policy=agent.delivery_policy,
enabled=agent.enabled,
agent_id=agent.agent_id,
)
@@ -0,0 +1,171 @@
"""Helpers for the current AgentRunner config shape."""
from __future__ import annotations
import typing
LEGACY_RUNNER_ID_MAP: dict[str, str] = {
'local-agent': 'plugin:langbot/local-agent/default',
'dify-service-api': 'plugin:langbot/dify-agent/default',
'n8n-service-api': 'plugin:langbot/n8n-agent/default',
'coze-api': 'plugin:langbot/coze-agent/default',
'dashscope-app-api': 'plugin:langbot/dashscope-agent/default',
'deerflow-api': 'plugin:langbot/deerflow-agent/default',
'langflow-api': 'plugin:langbot/langflow-agent/default',
'tbox-app-api': 'plugin:langbot/tbox-agent/default',
'weknora-api': 'plugin:langbot/weknora-agent/default',
}
class ConfigMigration:
"""Configuration helper for agent runner IDs.
Responsibilities:
- Resolve runner ID from ai.runner.id
- Migrate legacy ai.runner.runner + ai.<runner-name> blocks
- Extract current Agent/runner config from ai.runner_config
- Keep the current config container shape stable on save
"""
@staticmethod
def resolve_runner_id(pipeline_config: dict[str, typing.Any]) -> str | None:
"""Resolve runner ID from current configuration.
Args:
pipeline_config: Current configuration container
Returns:
Runner ID string, or None if not configured
"""
ai_config = pipeline_config.get('ai', {})
runner_config = ai_config.get('runner', {})
runner_id = runner_config.get('id')
if runner_id:
return runner_id
legacy_runner = runner_config.get('runner')
if isinstance(legacy_runner, str):
return LEGACY_RUNNER_ID_MAP.get(legacy_runner)
return None
@staticmethod
def resolve_runner_config(
pipeline_config: dict[str, typing.Any],
runner_id: str,
) -> dict[str, typing.Any]:
"""Resolve Agent/runner configuration from the current container.
Args:
pipeline_config: Current configuration container
runner_id: Resolved runner ID
Returns:
Runner configuration dict (empty if not found)
"""
ai_config = pipeline_config.get('ai', {})
runner_configs = ai_config.get('runner_config', {})
if runner_id in runner_configs:
return runner_configs[runner_id]
legacy_runner = ConfigMigration._legacy_runner_name_for_id(runner_id)
if legacy_runner and isinstance(ai_config.get(legacy_runner), dict):
return ConfigMigration._normalize_legacy_runner_config(
legacy_runner,
ai_config[legacy_runner],
)
return {}
@staticmethod
def get_expire_time(pipeline_config: dict[str, typing.Any]) -> int:
"""Get conversation expire time from configuration.
Args:
pipeline_config: Current configuration container
Returns:
Expire time in seconds (0 means no expiry)
"""
ai_config = pipeline_config.get('ai', {})
runner_config = ai_config.get('runner', {})
return runner_config.get('expire-time', 0)
@staticmethod
def migrate_pipeline_config(pipeline_config: dict[str, typing.Any]) -> dict[str, typing.Any]:
"""Normalize the current config container before saving.
Args:
pipeline_config: Original configuration
Returns:
Configuration with explicit ai.runner and ai.runner_config containers
"""
new_config = dict(pipeline_config)
if 'ai' not in new_config:
return new_config
ai_config = dict(new_config.get('ai', {}))
runner_config = dict(ai_config.get('runner', {}))
runner_configs = dict(ai_config.get('runner_config', {}))
legacy_runner = runner_config.get('runner')
mapped_runner_id = None
if isinstance(legacy_runner, str):
mapped_runner_id = LEGACY_RUNNER_ID_MAP.get(legacy_runner)
if mapped_runner_id and not runner_config.get('id'):
runner_config = {
key: value
for key, value in runner_config.items()
if key != 'runner'
}
runner_config['id'] = mapped_runner_id
if mapped_runner_id and mapped_runner_id not in runner_configs:
legacy_config = ai_config.get(legacy_runner)
if isinstance(legacy_config, dict):
runner_configs[mapped_runner_id] = ConfigMigration._normalize_legacy_runner_config(
legacy_runner,
legacy_config,
)
ai_config['runner'] = runner_config
ai_config['runner_config'] = runner_configs
if mapped_runner_id and legacy_runner in ai_config:
ai_config.pop(legacy_runner, None)
new_config['ai'] = ai_config
return new_config
@staticmethod
def _legacy_runner_name_for_id(runner_id: str) -> str | None:
for legacy_runner, mapped_runner_id in LEGACY_RUNNER_ID_MAP.items():
if mapped_runner_id == runner_id:
return legacy_runner
return None
@staticmethod
def _normalize_legacy_runner_config(
legacy_runner: str,
legacy_config: dict[str, typing.Any],
) -> dict[str, typing.Any]:
"""Normalize legacy runner config blocks to current plugin schema quirks."""
normalized = dict(legacy_config)
if legacy_runner == 'local-agent':
model = normalized.get('model')
if isinstance(model, str):
normalized['model'] = {
'primary': model,
'fallbacks': [],
}
knowledge_base = normalized.pop('knowledge-base', None)
if 'knowledge-bases' not in normalized and isinstance(knowledge_base, str):
normalized['knowledge-bases'] = [] if knowledge_base in {'', '__none__', '__none'} else [knowledge_base]
return normalized
@@ -0,0 +1,204 @@
"""Helpers for interpreting AgentRunner DynamicForm configuration."""
from __future__ import annotations
import typing
from .descriptor import AgentRunnerDescriptor
FORM_ITEM_TYPE_ALIASES = {
'select-llm-model': 'llm-model-selector',
'select-knowledge-bases': 'knowledge-base-multi-selector',
}
LLM_MODEL_SELECTOR_TYPES = {'model-fallback-selector', 'llm-model-selector'}
KB_SELECTOR_TYPES = {'knowledge-base-multi-selector'}
PROMPT_EDITOR_TYPES = {'prompt-editor'}
NONE_SENTINELS = {'', '__none__', '__none'}
def normalize_schema_item_type(item_type: typing.Any) -> typing.Any:
"""Normalize legacy/frontend DynamicForm aliases to protocol field types."""
if not isinstance(item_type, str):
return item_type
return FORM_ITEM_TYPE_ALIASES.get(item_type, item_type)
def iter_schema_items(
descriptor: AgentRunnerDescriptor | None,
field_types: set[str],
) -> typing.Iterator[dict[str, typing.Any]]:
"""Yield descriptor config schema items whose type is in field_types."""
if descriptor is None:
return
for item in descriptor.config_schema or []:
if not isinstance(item, dict):
continue
if normalize_schema_item_type(item.get('type')) in field_types:
yield item
def uses_host_models(descriptor: AgentRunnerDescriptor | None) -> bool:
"""Return whether LangBot should resolve model resources for this runner."""
return any(True for _ in iter_schema_items(descriptor, LLM_MODEL_SELECTOR_TYPES))
def uses_host_tools(descriptor: AgentRunnerDescriptor | None) -> bool:
"""Return whether LangBot should expose tool resources to this runner."""
return descriptor is not None and descriptor.supports_tool_calling()
def uses_host_knowledge_bases(descriptor: AgentRunnerDescriptor | None) -> bool:
"""Return whether LangBot should expose knowledge-base resources to this runner."""
return descriptor is not None and descriptor.supports_knowledge_retrieval()
def supports_skill_authoring(descriptor: AgentRunnerDescriptor | None) -> bool:
"""Return whether the runner wants Host skill-authoring tools."""
if descriptor is None:
return False
return descriptor.capabilities.skill_authoring
def extract_prompt_config(
descriptor: AgentRunnerDescriptor | None,
runner_config: dict[str, typing.Any],
default_prompt: list[dict[str, typing.Any]],
) -> list[dict[str, typing.Any]]:
"""Extract the prompt-editor value selected by the runner schema."""
for item in iter_schema_items(descriptor, PROMPT_EDITOR_TYPES):
field_name = item.get('name')
if field_name and field_name in runner_config:
configured_prompt = runner_config[field_name]
if isinstance(configured_prompt, list):
return configured_prompt
default_value = item.get('default')
if isinstance(default_value, list):
return default_value
return default_prompt
def extract_model_selection(
descriptor: AgentRunnerDescriptor | None,
runner_config: dict[str, typing.Any],
) -> tuple[str, list[str]]:
"""Extract primary/fallback LLM selections from schema-defined fields."""
primary_uuid = ''
fallback_uuids: list[str] = []
for item in iter_schema_items(descriptor, LLM_MODEL_SELECTOR_TYPES):
field_name = item.get('name')
if not field_name:
continue
value = runner_config.get(field_name, item.get('default'))
item_type = normalize_schema_item_type(item.get('type'))
if item_type == 'model-fallback-selector':
if isinstance(value, str):
primary_uuid = value
elif isinstance(value, dict):
primary_uuid = value.get('primary') or ''
fallbacks = value.get('fallbacks', [])
if isinstance(fallbacks, list):
fallback_uuids = [fallback for fallback in fallbacks if isinstance(fallback, str)]
break
if item_type == 'llm-model-selector' and isinstance(value, str):
primary_uuid = value
break
return primary_uuid, fallback_uuids
def extract_knowledge_base_uuids(
descriptor: AgentRunnerDescriptor | None,
runner_config: dict[str, typing.Any],
) -> list[str]:
"""Extract configured knowledge-base UUIDs from schema-defined fields."""
if not uses_host_knowledge_bases(descriptor):
return []
kb_uuids: list[str] = []
for item in iter_schema_items(descriptor, KB_SELECTOR_TYPES):
field_name = item.get('name')
if not field_name:
continue
value = runner_config.get(field_name, item.get('default', []))
if isinstance(value, list):
kb_uuids.extend(
kb_uuid for kb_uuid in value if isinstance(kb_uuid, str) and kb_uuid not in NONE_SENTINELS
)
return list(dict.fromkeys(kb_uuids))
def iter_config_model_refs(
descriptor: AgentRunnerDescriptor,
runner_config: dict[str, typing.Any],
) -> typing.Iterator[tuple[str, str]]:
"""Yield model references declared by schema-defined model selector fields."""
for item in descriptor.config_schema or []:
if not isinstance(item, dict):
continue
field_name = item.get('name')
field_type = normalize_schema_item_type(item.get('type'))
if not field_name or field_name not in runner_config:
continue
value = runner_config.get(field_name)
if field_type == 'model-fallback-selector':
if isinstance(value, str) and value not in NONE_SENTINELS:
yield 'llm', value
elif isinstance(value, dict):
primary = value.get('primary')
if isinstance(primary, str) and primary not in NONE_SENTINELS:
yield 'llm', primary
fallbacks = value.get('fallbacks', [])
if isinstance(fallbacks, list):
for fallback_uuid in fallbacks:
if isinstance(fallback_uuid, str) and fallback_uuid not in NONE_SENTINELS:
yield 'llm', fallback_uuid
elif field_type == 'llm-model-selector':
if isinstance(value, str) and value not in NONE_SENTINELS:
yield 'llm', value
elif field_type == 'rerank-model-selector':
if isinstance(value, str) and value not in NONE_SENTINELS:
yield 'rerank', value
def set_empty_llm_model_selection(
descriptor: AgentRunnerDescriptor,
runner_config: dict[str, typing.Any],
model_uuid: str,
) -> bool:
"""Set the first empty schema-defined LLM selector to model_uuid."""
for item in iter_schema_items(descriptor, LLM_MODEL_SELECTOR_TYPES):
field_name = item.get('name')
field_type = normalize_schema_item_type(item.get('type'))
if not field_name:
continue
value = runner_config.get(field_name, item.get('default'))
if field_type == 'model-fallback-selector':
if isinstance(value, dict):
primary = value.get('primary') or ''
if primary not in NONE_SENTINELS:
return False
fallbacks = value.get('fallbacks', [])
runner_config[field_name] = {
'primary': model_uuid,
'fallbacks': fallbacks if isinstance(fallbacks, list) else [],
}
return True
if isinstance(value, str) and value not in NONE_SENTINELS:
return False
runner_config[field_name] = {'primary': model_uuid, 'fallbacks': []}
return True
if field_type == 'llm-model-selector':
if isinstance(value, str) and value not in NONE_SENTINELS:
return False
runner_config[field_name] = model_uuid
return True
return False
@@ -0,0 +1,490 @@
"""Agent run context builder for provisioning AgentRunContext envelopes."""
from __future__ import annotations
import uuid
import time
import typing
from ...core import app
from .descriptor import AgentRunnerDescriptor
from .persistent_state_store import get_persistent_state_store
from .host_models import AgentEventEnvelope, AgentBinding
DEFAULT_RUNNER_TIMEOUT_SECONDS = 300
# Internal models for the agent runner context protocol.
class AgentTrigger(typing.TypedDict):
"""Agent trigger information."""
type: str
source: str
timestamp: int | None
class ConversationContext(typing.TypedDict):
"""Conversation context."""
conversation_id: str | None
thread_id: str | None
launcher_type: str | None
launcher_id: str | None
sender_id: str | None
bot_id: str | None
workspace_id: str | None
session_id: str | None
class AgentInput(typing.TypedDict):
"""Agent input."""
text: str | None
contents: list[dict[str, typing.Any]]
attachments: list[dict[str, typing.Any]]
class AgentRunState(typing.TypedDict):
"""Agent run state with 4 scopes."""
conversation: dict[str, typing.Any]
actor: dict[str, typing.Any]
subject: dict[str, typing.Any]
runner: dict[str, typing.Any]
# Resource payload models matching langbot-plugin-sdk/resources.py.
class ModelResource(typing.TypedDict):
"""Model resource payload."""
model_id: str
model_type: str | None
provider: str | None
operations: list[str]
class ToolResource(typing.TypedDict):
"""Tool resource payload."""
tool_name: str
tool_type: str | None
description: str | None
operations: list[str]
class KnowledgeBaseResource(typing.TypedDict):
"""Knowledge base resource payload."""
kb_id: str
kb_name: str | None
kb_type: str | None
operations: list[str]
class SkillResource(typing.TypedDict):
"""Skill resource payload."""
skill_name: str
display_name: str | None
description: str | None
class StorageResource(typing.TypedDict):
"""Storage resource payload."""
plugin_storage: bool
workspace_storage: bool
class AgentResources(typing.TypedDict):
"""Agent resources payload."""
models: list[ModelResource]
tools: list[ToolResource]
knowledge_bases: list[KnowledgeBaseResource]
skills: list[SkillResource]
storage: StorageResource
platform_capabilities: dict[str, typing.Any]
class AgentRuntimeContext(typing.TypedDict):
"""Agent runtime context."""
langbot_version: str | None
trace_id: str | None
deadline_at: float | None
metadata: dict[str, typing.Any]
class AgentRunContextPayload(typing.TypedDict):
"""AgentRunContext payload passed to an agent runner.
Protocol v1 structure - matches SDK AgentRunContext.
Note: The 'config' field contains the current Agent/runner config
from ai.runner_config[runner_id] while the current Query entry remains
a temporary configuration container. It is not plugin instance config.
"""
run_id: str
trigger: AgentTrigger
conversation: ConversationContext | None
event: dict[str, typing.Any] # REQUIRED for Protocol v1
actor: dict[str, typing.Any] | None
subject: dict[str, typing.Any] | None
input: AgentInput
delivery: dict[str, typing.Any] # REQUIRED for Protocol v1
resources: AgentResources
context: dict[str, typing.Any] # ContextAccess - REQUIRED for Protocol v1
state: AgentRunState
runtime: AgentRuntimeContext
config: dict[str, typing.Any] # Agent/runner config from ai.runner_config[runner_id]
adapter: dict[str, typing.Any] | None # Entry adapter context
metadata: dict[str, typing.Any] # Additional metadata
class AgentRunContextBuilder:
"""Builder for provisioning AgentRunContext.
Responsibilities:
- Generate new run_id (UUID, not query id)
- Set trigger type based on event source
- Build conversation context from event
- Build input from event
- Build state snapshot from PersistentStateStore
- Build runtime context with host info, trace_id, deadline
- Set config from current Agent/runner configuration.
Query adaptation belongs to QueryEntryAdapter, not this builder.
"""
ap: app.Application
def __init__(self, ap: app.Application):
self.ap = ap
@staticmethod
def _positive_int(value: typing.Any) -> int | None:
if isinstance(value, bool):
return None
if isinstance(value, int) and value > 0:
return value
if isinstance(value, str) and value.isdigit():
parsed_value = int(value)
if parsed_value > 0:
return parsed_value
return None
@staticmethod
def _is_llm_model_resource(model_resource: ModelResource) -> bool:
operations = model_resource.get('operations')
if isinstance(operations, list) and operations:
return bool({'invoke', 'stream'} & {str(operation) for operation in operations})
return model_resource.get('model_type') != 'rerank'
async def _build_model_context_window_tokens(self, resources: AgentResources) -> int | None:
model_mgr = getattr(self.ap, 'model_mgr', None)
if model_mgr is None:
return None
for model_resource in resources.get('models', []):
if not self._is_llm_model_resource(model_resource):
continue
model_uuid = model_resource.get('model_id')
if not isinstance(model_uuid, str) or not model_uuid:
continue
try:
model = await model_mgr.get_model_by_uuid(model_uuid)
except Exception as exc:
logger = getattr(self.ap, 'logger', None)
if logger is not None:
logger.debug(f'Failed to resolve model context window for {model_uuid}: {exc}')
continue
model_entity = getattr(model, 'model_entity', None)
context_length = self._positive_int(getattr(model_entity, 'context_length', None))
return context_length
return None
async def build_context_from_event(
self,
event: AgentEventEnvelope,
binding: AgentBinding,
descriptor: AgentRunnerDescriptor,
resources: AgentResources,
) -> AgentRunContextPayload:
"""Build AgentRunContext from event-first envelope.
This is the main entry point for Protocol v1.
Does NOT inline full history by default.
Args:
event: Event envelope
binding: Agent binding
descriptor: Runner descriptor
resources: Built resources
Returns:
AgentRunContextPayload for the runner
"""
# Generate new run_id
run_id = str(uuid.uuid4())
# Build trigger from event
trigger: AgentTrigger = {
'type': event.event_type,
'source': event.source,
'timestamp': event.event_time or int(time.time()),
}
# Build conversation context from event
conversation: ConversationContext | None = None
if event.conversation_id:
conversation = {
'session_id': None,
'conversation_id': event.conversation_id,
'thread_id': event.thread_id,
'launcher_type': None, # Will be filled from actor/subject if needed
'launcher_id': None,
'sender_id': event.actor.actor_id if event.actor else None,
'bot_id': event.bot_id,
'workspace_id': event.workspace_id,
}
# Build event context (Protocol v1 event-first)
event_context = {
'event_id': event.event_id,
'event_type': event.event_type,
'event_time': event.event_time,
'source': event.source,
'source_event_type': event.source_event_type,
'raw_ref': event.raw_ref.model_dump(mode='json') if event.raw_ref else None,
'data': event.data,
}
# Build actor context
actor_context = None
if event.actor:
actor_context = {
'actor_type': event.actor.actor_type,
'actor_id': event.actor.actor_id,
'actor_name': event.actor.actor_name,
}
# Build subject context
subject_context = None
if event.subject:
subject_context = {
'subject_type': event.subject.subject_type,
'subject_id': event.subject.subject_id,
'data': event.subject.data,
}
# Build input from event
input: AgentInput = {
'text': event.input.text,
'contents': [c.model_dump(mode='json') if hasattr(c, 'model_dump') else c for c in event.input.contents],
'attachments': [
a.model_dump(mode='json') if hasattr(a, 'model_dump') else a for a in event.input.attachments
],
}
# Build context access (no history inlined by default for Protocol v1)
# Populate with actual values from stores
context_access = await self._build_context_access(event, descriptor, binding)
# Build state snapshot from persistent state store (event-first Protocol v1)
persistent_state_store = get_persistent_state_store(self.ap.persistence_mgr.get_db_engine())
state: AgentRunState = await persistent_state_store.build_snapshot_from_event(event, binding, descriptor)
model_context_window_tokens = await self._build_model_context_window_tokens(resources)
# Build runtime context
runtime: AgentRuntimeContext = {
'langbot_version': self.ap.ver_mgr.get_current_version(),
'trace_id': run_id,
'deadline_at': self._build_deadline_from_binding(binding),
'metadata': {
'bot_id': event.bot_id,
'workspace_id': event.workspace_id,
'streaming_supported': event.delivery.supports_streaming,
'model_context_window_tokens': model_context_window_tokens,
},
}
# Build delivery context
delivery_context = {
'surface': event.delivery.surface,
'reply_target': event.delivery.reply_target,
'supports_streaming': event.delivery.supports_streaming,
'supports_edit': event.delivery.supports_edit,
'supports_reaction': event.delivery.supports_reaction,
'max_message_size': event.delivery.max_message_size,
'platform_capabilities': event.delivery.platform_capabilities,
}
# Build adapter context (empty for event-first)
adapter_context = {
'extra': {},
}
# Build full context - Protocol v1 structure
context: AgentRunContextPayload = {
'run_id': run_id,
'trigger': trigger,
'conversation': conversation,
'event': event_context, # REQUIRED
'actor': actor_context,
'subject': subject_context,
'input': input,
'delivery': delivery_context, # REQUIRED
'resources': resources,
'context': context_access, # ContextAccess - REQUIRED
'state': state,
'runtime': runtime,
'config': binding.runner_config,
'adapter': adapter_context,
'metadata': {}, # Additional metadata
}
return context
def _build_deadline_from_binding(self, binding: AgentBinding) -> float | None:
"""Build deadline timestamp from binding timeout config.
Args:
binding: Agent binding with runner_config
Returns:
Deadline timestamp or None
"""
timeout = binding.runner_config.get('timeout', DEFAULT_RUNNER_TIMEOUT_SECONDS)
if timeout is None:
return None
try:
timeout_seconds = float(timeout)
except (TypeError, ValueError):
return None
if timeout_seconds <= 0:
return None
return time.time() + timeout_seconds
async def _build_context_access(
self,
event: AgentEventEnvelope,
descriptor: AgentRunnerDescriptor,
binding: AgentBinding | None = None,
) -> dict[str, typing.Any]:
"""Build ContextAccess with actual values from stores.
Args:
event: Event envelope
descriptor: Runner descriptor
binding: Agent binding (required for state_policy in event-first mode)
Returns:
ContextAccess dict
"""
conversation_id = event.conversation_id
permissions = descriptor.permissions
history_perms = set(permissions.history)
event_perms = set(permissions.events)
storage_perms = set(permissions.storage)
history_page_enabled = 'page' in history_perms and conversation_id is not None
history_search_enabled = 'search' in history_perms and conversation_id is not None
event_get_enabled = 'get' in event_perms
event_page_enabled = 'page' in event_perms and conversation_id is not None
steering_pull_enabled = (
bool(getattr(descriptor.capabilities, 'steering', False)) and conversation_id is not None
)
run_get_enabled = True
run_list_enabled = conversation_id is not None
run_events_page_enabled = True
run_cancel_enabled = True
run_append_result_enabled = False
run_finalize_enabled = False
run_claim_enabled = False
run_renew_claim_enabled = False
run_release_claim_enabled = False
runtime_register_enabled = False
runtime_heartbeat_enabled = False
runtime_list_enabled = False
# Determine state API availability based on binding state_policy.
state_enabled = False
storage_enabled = False
if binding is not None:
state_policy = binding.state_policy
if state_policy.enable_state and state_policy.state_scopes:
state_enabled = True
resource_policy = binding.resource_policy
storage_enabled = ('plugin' in storage_perms and resource_policy.allow_plugin_storage) or (
'workspace' in storage_perms and resource_policy.allow_workspace_storage
)
# Get latest cursor and has_history_before if conversation exists
latest_cursor = None
has_history_before = False
if conversation_id:
try:
from .transcript_store import TranscriptStore
store = TranscriptStore(self.ap.persistence_mgr.get_db_engine())
latest_cursor = await store.get_latest_cursor(conversation_id)
if latest_cursor:
has_history_before = True
except Exception as e:
self.ap.logger.warning(f'Failed to get transcript cursor: {e}')
return {
'conversation_id': conversation_id,
'thread_id': event.thread_id,
'latest_cursor': latest_cursor,
'event_seq': None, # Will be populated when EventLog is written
'transcript_seq': int(latest_cursor) if latest_cursor else None,
'has_history_before': has_history_before,
'inline_policy': {
'mode': 'current_event',
'delivered_count': 0,
'source_total_count': None,
'messages_complete': False,
'reason': 'current_event_only',
},
'available_apis': {
'prompt_get': False,
'history_page': history_page_enabled,
'history_search': history_search_enabled,
'event_get': event_get_enabled,
'event_page': event_page_enabled,
'state': state_enabled,
'storage': storage_enabled,
'steering_pull': steering_pull_enabled,
'run_get': run_get_enabled,
'run_list': run_list_enabled,
'run_events_page': run_events_page_enabled,
'run_cancel': run_cancel_enabled,
'run_append_result': run_append_result_enabled,
'run_finalize': run_finalize_enabled,
'run_claim': run_claim_enabled,
'run_renew_claim': run_renew_claim_enabled,
'run_release_claim': run_release_claim_enabled,
'runtime_register': runtime_register_enabled,
'runtime_heartbeat': runtime_heartbeat_enabled,
'runtime_list': runtime_list_enabled,
},
}
@@ -0,0 +1,72 @@
"""Default AgentRunner binding configuration helpers."""
from __future__ import annotations
import sqlalchemy
from ...core import app
from ...entity.persistence import pipeline as persistence_pipeline
from . import config_schema
from .config_migration import ConfigMigration
class AgentRunnerDefaultConfigService:
"""Apply AgentRunner schema-defined defaults to host binding config."""
ap: app.Application
def __init__(self, ap: app.Application) -> None:
self.ap = ap
async def _get_runner_descriptor(self, runner_id: str):
registry = getattr(self.ap, 'agent_runner_registry', None)
if registry is None:
return None
try:
return await registry.get(runner_id, bound_plugins=None)
except Exception as e:
logger = getattr(self.ap, 'logger', None)
if logger:
logger.warning(f'Failed to load AgentRunner descriptor while setting default model: {e}')
return None
async def auto_set_default_pipeline_llm_model(self, model_uuid: str) -> bool:
"""Set model_uuid into the default pipeline runner config when the selector is empty."""
result = await self.ap.persistence_mgr.execute_async(
sqlalchemy.select(persistence_pipeline.LegacyPipeline).where(
persistence_pipeline.LegacyPipeline.is_default == True
)
)
pipeline = result.first()
if pipeline is None:
return False
return await self.set_pipeline_llm_model_if_empty(pipeline, model_uuid)
async def set_pipeline_llm_model_if_empty(
self,
pipeline: persistence_pipeline.LegacyPipeline,
model_uuid: str,
) -> bool:
"""Set model_uuid into a pipeline's schema-defined LLM selector if it is empty."""
pipeline_config = pipeline.config
if not isinstance(pipeline_config, dict):
return False
runner_id = ConfigMigration.resolve_runner_id(pipeline_config)
if not runner_id:
return False
descriptor = await self._get_runner_descriptor(runner_id)
if descriptor is None:
return False
ai_config = pipeline_config.setdefault('ai', {})
runner_configs = ai_config.setdefault('runner_config', {})
runner_config = runner_configs.setdefault(runner_id, {})
if not config_schema.set_empty_llm_model_selection(descriptor, runner_config, model_uuid):
return False
await self.ap.pipeline_service.update_pipeline(pipeline.uuid, {'config': pipeline_config})
return True
@@ -0,0 +1,82 @@
"""Agent runner descriptor."""
from __future__ import annotations
import typing
import pydantic
from langbot_plugin.api.entities.builtin.agent_runner.manifest import (
AgentRunnerCapabilities,
AgentRunnerPermissions,
)
class AgentRunnerDescriptor(pydantic.BaseModel):
"""Descriptor for an agent runner.
Represents the discovered metadata for a runner, including
its identity, capabilities, permissions, and configuration schema.
"""
id: str
"""Unique runner ID: plugin:author/plugin_name/runner_name"""
source: typing.Literal['plugin']
"""Runner source type"""
label: dict[str, str]
"""Display labels keyed by locale (e.g., en_US, zh_Hans)"""
description: dict[str, str] | None = None
"""Optional description keyed by locale"""
plugin_author: str
"""Plugin author from manifest"""
plugin_name: str
"""Plugin name from manifest"""
runner_name: str
"""AgentRunner component name from manifest"""
plugin_version: str | None = None
"""Optional plugin version"""
config_schema: list[dict[str, typing.Any]] = pydantic.Field(default_factory=list)
"""Configuration schema using DynamicForm format"""
capabilities: AgentRunnerCapabilities = pydantic.Field(
default_factory=AgentRunnerCapabilities
)
"""Runner capabilities: streaming, tool_calling, knowledge_retrieval, etc."""
permissions: AgentRunnerPermissions = pydantic.Field(
default_factory=AgentRunnerPermissions
)
"""Requested LangBot resource permissions."""
raw_manifest: dict[str, typing.Any] = pydantic.Field(default_factory=dict)
"""Original manifest for reference"""
model_config = pydantic.ConfigDict(
extra='allow',
)
def get_plugin_id(self) -> str:
"""Return plugin identifier as author/name."""
return f'{self.plugin_author}/{self.plugin_name}'
def supports_streaming(self) -> bool:
"""Check if runner supports streaming output."""
return self.capabilities.streaming
def supports_tool_calling(self) -> bool:
"""Check if runner supports tool calling."""
return self.capabilities.tool_calling
def supports_knowledge_retrieval(self) -> bool:
"""Check if runner supports knowledge retrieval."""
return self.capabilities.knowledge_retrieval
def supports_steering(self) -> bool:
"""Check if runner supports run steering/follow-up input."""
return bool(getattr(self.capabilities, 'steering', False))
+37
View File
@@ -0,0 +1,37 @@
"""Agent runner errors."""
from __future__ import annotations
class AgentRunnerError(Exception):
"""Base error for agent runner operations."""
pass
class RunnerNotFoundError(AgentRunnerError):
"""Runner not found in registry."""
def __init__(self, runner_id: str):
self.runner_id = runner_id
super().__init__(f'Agent runner not found: {runner_id}')
class RunnerNotAuthorizedError(AgentRunnerError):
"""Runner not authorized for this binding."""
def __init__(self, runner_id: str, bound_plugins: list[str] | None):
self.runner_id = runner_id
self.bound_plugins = bound_plugins
super().__init__(f'Agent runner {runner_id} not authorized for bound_plugins={bound_plugins}')
class RunnerProtocolError(AgentRunnerError):
"""Runner protocol version mismatch or invalid manifest."""
def __init__(self, runner_id: str, message: str):
self.runner_id = runner_id
super().__init__(f'Agent runner protocol error for {runner_id}: {message}')
class RunnerExecutionError(AgentRunnerError):
"""Runner execution failed."""
def __init__(self, runner_id: str, message: str, retryable: bool = False):
self.runner_id = runner_id
self.retryable = retryable
super().__init__(f'Agent runner {runner_id} execution failed: {message}')
@@ -0,0 +1,315 @@
"""EventLog store for writing and querying event records."""
from __future__ import annotations
import json
import datetime
import typing
import uuid
import sqlalchemy
from sqlalchemy.ext.asyncio import AsyncEngine, AsyncSession
from sqlalchemy.orm import sessionmaker
from ...entity.persistence.event_log import EventLog
UTC = datetime.timezone.utc
def _utc_now() -> datetime.datetime:
return datetime.datetime.now(UTC)
def _datetime_to_epoch(value: datetime.datetime | None) -> int | None:
if value is None:
return None
if value.tzinfo is None:
value = value.replace(tzinfo=UTC)
else:
value = value.astimezone(UTC)
return int(value.timestamp())
class EventLogStore:
"""Store for EventLog records.
Handles writing events to the event log and querying them.
All methods are async and use the provided database engine.
"""
engine: AsyncEngine
# Hard limits
MAX_INPUT_SUMMARY_LENGTH = 1000
def __init__(self, engine: AsyncEngine):
self.engine = engine
self._session_factory = sessionmaker(
engine, class_=AsyncSession, expire_on_commit=False
)
async def append_event(
self,
event_id: str | None,
event_type: str,
source: str,
bot_id: str | None = None,
workspace_id: str | None = None,
conversation_id: str | None = None,
thread_id: str | None = None,
actor_type: str | None = None,
actor_id: str | None = None,
actor_name: str | None = None,
subject_type: str | None = None,
subject_id: str | None = None,
input_summary: str | None = None,
input_json: dict[str, typing.Any] | None = None,
raw_ref: str | None = None,
run_id: str | None = None,
runner_id: str | None = None,
event_time: datetime.datetime | None = None,
metadata: dict[str, typing.Any] | None = None,
) -> str:
"""Append an event to the event log.
Args:
event_id: Unique event ID (generated if None)
event_type: Event type
source: Event source
bot_id: Bot UUID
workspace_id: Workspace ID
conversation_id: Conversation ID
thread_id: Thread ID
actor_type: Actor type
actor_id: Actor ID
actor_name: Actor display name
subject_type: Subject type
subject_id: Subject ID
input_summary: Brief input summary
input_json: Full input JSON
raw_ref: Reference to raw event payload
run_id: Run ID processing this event
runner_id: Runner ID processing this event
event_time: When the event occurred
metadata: Additional metadata
Returns:
The event_id
"""
if event_id is None:
event_id = str(uuid.uuid4())
# Truncate input summary if too long
if input_summary and len(input_summary) > self.MAX_INPUT_SUMMARY_LENGTH:
input_summary = input_summary[:self.MAX_INPUT_SUMMARY_LENGTH - 3] + "..."
async with self._session_factory() as session:
event = EventLog(
event_id=event_id,
event_type=event_type,
event_time=event_time,
source=source,
bot_id=bot_id,
workspace_id=workspace_id,
conversation_id=conversation_id,
thread_id=thread_id,
actor_type=actor_type,
actor_id=actor_id,
actor_name=actor_name,
subject_type=subject_type,
subject_id=subject_id,
input_summary=input_summary,
input_json=json.dumps(input_json) if input_json else None,
raw_ref=raw_ref,
run_id=run_id,
runner_id=runner_id,
metadata_json=json.dumps(metadata) if metadata else None,
created_at=_utc_now(),
)
session.add(event)
await session.commit()
return event_id
async def get_event(
self,
event_id: str,
) -> dict[str, typing.Any] | None:
"""Get a single event by ID.
Args:
event_id: Event ID
Returns:
Event record as dict, or None if not found
"""
async with self._session_factory() as session:
result = await session.execute(
sqlalchemy.select(EventLog).where(EventLog.event_id == event_id)
)
row = result.scalars().first()
if row is None:
return None
return self._row_to_dict(row)
async def page_events(
self,
conversation_id: str | None = None,
event_types: list[str] | None = None,
before_seq: int | None = None,
limit: int = 50,
bot_id: str | None = None,
workspace_id: str | None = None,
thread_id: str | None = None,
strict_thread: bool = False,
) -> tuple[list[dict[str, typing.Any]], int | None, bool]:
"""Page through event records.
Args:
conversation_id: Filter by conversation ID
event_types: Filter by event types
before_seq: Get events before this sequence number
limit: Maximum items to return (capped at 100)
bot_id: Optional bot scope filter
workspace_id: Optional workspace scope filter
thread_id: Optional thread scope filter
strict_thread: When true, require thread_id equality including NULL
Returns:
Tuple of (items, next_seq, has_more)
"""
limit = min(limit, 100) # Hard cap
async with self._session_factory() as session:
query = sqlalchemy.select(EventLog)
if conversation_id is not None:
query = query.where(EventLog.conversation_id == conversation_id)
query = self._apply_scope_filters(query, bot_id, workspace_id, thread_id, strict_thread)
if event_types:
query = query.where(EventLog.event_type.in_(event_types))
if before_seq is not None:
query = query.where(EventLog.id < before_seq)
query = query.order_by(EventLog.id.desc()).limit(limit + 1)
result = await session.execute(query)
rows = result.scalars().all()
items = [self._row_to_dict(row) for row in rows[:limit]]
has_more = len(rows) > limit
next_seq = items[-1]['id'] if items and has_more else None
return items, next_seq, has_more
async def get_latest_cursor(
self,
conversation_id: str,
) -> str | None:
"""Get the latest cursor for a conversation.
Args:
conversation_id: Conversation ID
Returns:
Cursor string (seq number), or None if no events
"""
async with self._session_factory() as session:
result = await session.execute(
sqlalchemy.select(EventLog.id)
.where(EventLog.conversation_id == conversation_id)
.order_by(EventLog.id.desc())
.limit(1)
)
row = result.scalars().first()
if row is None:
return None
return str(row)
async def has_events_before(
self,
conversation_id: str,
seq: int,
bot_id: str | None = None,
workspace_id: str | None = None,
thread_id: str | None = None,
strict_thread: bool = False,
) -> bool:
"""Check if there are events before a sequence number.
Args:
conversation_id: Conversation ID
seq: Sequence number
Returns:
True if there are events before
"""
async with self._session_factory() as session:
query = (
sqlalchemy.select(sqlalchemy.func.count())
.select_from(EventLog)
.where(EventLog.conversation_id == conversation_id, EventLog.id < seq)
)
query = self._apply_scope_filters(query, bot_id, workspace_id, thread_id, strict_thread)
result = await session.execute(query)
count = result.scalar()
return count > 0
def _apply_scope_filters(
self,
query: typing.Any,
bot_id: str | None,
workspace_id: str | None,
thread_id: str | None,
strict_thread: bool,
) -> typing.Any:
if bot_id is not None:
query = query.where(EventLog.bot_id == bot_id)
if workspace_id is not None:
query = query.where(EventLog.workspace_id == workspace_id)
if strict_thread:
if thread_id is None:
query = query.where(EventLog.thread_id.is_(None))
else:
query = query.where(EventLog.thread_id == thread_id)
return query
async def cleanup_events_older_than(
self,
before: datetime.datetime,
) -> int:
"""Delete EventLog rows created before the supplied timestamp."""
async with self._session_factory() as session:
result = await session.execute(
sqlalchemy.delete(EventLog).where(EventLog.created_at < before)
)
await session.commit()
return result.rowcount or 0
def _row_to_dict(self, row: EventLog) -> dict[str, typing.Any]:
"""Convert an EventLog row to dict."""
return {
'id': row.id,
'event_id': row.event_id,
'event_type': row.event_type,
'event_time': _datetime_to_epoch(row.event_time),
'source': row.source,
'bot_id': row.bot_id,
'workspace_id': row.workspace_id,
'conversation_id': row.conversation_id,
'thread_id': row.thread_id,
'actor_type': row.actor_type,
'actor_id': row.actor_id,
'actor_name': row.actor_name,
'subject_type': row.subject_type,
'subject_id': row.subject_id,
'input_summary': row.input_summary,
'input_json': json.loads(row.input_json) if row.input_json else None,
'raw_ref': row.raw_ref,
'run_id': row.run_id,
'runner_id': row.runner_id,
'created_at': _datetime_to_epoch(row.created_at),
'metadata': json.loads(row.metadata_json) if row.metadata_json else {},
}
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"""Canonical AgentRunner event names reserved for future EBA integration."""
from __future__ import annotations
MESSAGE_RECEIVED = 'message.received'
"""A normal message entered the current Pipeline."""
MESSAGE_RECALLED = 'message.recalled'
"""A platform message was recalled or deleted."""
GROUP_MEMBER_JOINED = 'group.member_joined'
"""A new member joined a group/channel conversation."""
FRIEND_REQUEST_RECEIVED = 'friend.request_received'
"""A new friend/contact request was received."""
RESERVED_EVENT_TYPES = frozenset(
{
MESSAGE_RECEIVED,
MESSAGE_RECALLED,
GROUP_MEMBER_JOINED,
FRIEND_REQUEST_RECEIVED,
}
)
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"""Agent event envelope and binding models for LangBot Host.
These are Host-internal models, not exposed to SDK.
"""
from __future__ import annotations
import typing
import pydantic
from langbot_plugin.api.entities.builtin.agent_runner.event import (
ActorContext,
SubjectContext,
RawEventRef,
)
from langbot_plugin.api.entities.builtin.agent_runner.input import AgentInput
from langbot_plugin.api.entities.builtin.agent_runner.delivery import DeliveryContext
class AgentEventEnvelope(pydantic.BaseModel):
"""Event envelope for LangBot Host event gateway.
This is the unified input model that replaces Query-first approach.
IM / WebUI / API / EventRouter all produce this envelope.
"""
event_id: str
"""Unique event identifier."""
event_type: str
"""Event type (message.received, message.recalled, etc.)."""
event_time: int | None = None
"""Event timestamp (epoch seconds)."""
source: str
"""Event source (platform, webui, api, scheduler, system)."""
source_event_type: str | None = None
"""Original source event type, when available."""
bot_id: str | None = None
"""Bot UUID handling this event."""
workspace_id: str | None = None
"""Workspace ID (for multi-tenant)."""
conversation_id: str | None = None
"""Conversation ID."""
thread_id: str | None = None
"""Thread ID (for platforms supporting threads)."""
actor: ActorContext | None = None
"""Actor (who triggered the event)."""
subject: SubjectContext | None = None
"""Subject (what the event is about)."""
input: AgentInput
"""Event input."""
delivery: DeliveryContext
"""Delivery context."""
raw_ref: RawEventRef | None = None
"""Reference to raw event payload."""
data: dict[str, typing.Any] = pydantic.Field(default_factory=dict)
"""Small structured event payload. Large payloads should be referenced via raw_ref."""
# Binding scope types
class BindingScope(pydantic.BaseModel):
"""Scope for agent binding."""
scope_type: typing.Literal["agent", "bot", "workspace", "global"] = "agent"
"""Scope type."""
scope_id: str | None = None
"""Scope identifier (agent_id, bot_uuid, etc.)."""
class ResourcePolicy(pydantic.BaseModel):
"""Resource policy for agent binding.
Controls what resources the runner can access.
"""
allowed_model_uuids: list[str] | None = None
"""Additional model UUID grants. None means no additional model grants."""
allowed_tool_names: list[str] | None = None
"""Additional tool name grants. None means no additional tool grants."""
allowed_kb_uuids: list[str] | None = None
"""Additional knowledge base UUID grants. None means no additional KB grants."""
allowed_skill_names: list[str] | None = None
"""Allowed skill names. None means all currently visible skills are allowed."""
allow_plugin_storage: bool = True
"""Whether plugin storage is allowed."""
allow_workspace_storage: bool = False
"""Whether workspace storage is allowed."""
class StatePolicy(pydantic.BaseModel):
"""State policy for agent binding.
Controls state management behavior.
"""
enable_state: bool = True
"""Whether host-owned state is enabled."""
state_scopes: list[typing.Literal["conversation", "actor", "subject", "runner"]] = (
pydantic.Field(default_factory=lambda: ["conversation", "actor"])
)
"""Enabled state scopes."""
class DeliveryPolicy(pydantic.BaseModel):
"""Delivery policy for agent binding.
Controls how results are delivered.
"""
enable_streaming: bool = True
"""Whether streaming output is enabled."""
enable_reply: bool = True
"""Whether reply is enabled."""
max_message_size: int | None = None
"""Maximum message size."""
class AgentConfig(pydantic.BaseModel):
"""Host-side Agent configuration.
Product-level Agent is the target replacement for Pipeline-owned agent
config. Current Pipeline entry paths can project their config into this
model during migration.
"""
agent_id: str | None = None
"""Host-side Agent/config identifier."""
runner_id: str
"""Runner ID to invoke."""
runner_config: dict[str, typing.Any] = pydantic.Field(default_factory=dict)
"""Agent/runner binding configuration."""
resource_policy: ResourcePolicy = pydantic.Field(default_factory=ResourcePolicy)
"""Resource policy for this Agent."""
state_policy: StatePolicy = pydantic.Field(default_factory=StatePolicy)
"""State policy for this Agent."""
delivery_policy: DeliveryPolicy = pydantic.Field(default_factory=DeliveryPolicy)
"""Delivery policy for this Agent."""
event_types: list[str] = pydantic.Field(default_factory=lambda: ["message.received"])
"""Event types this Agent handles."""
enabled: bool = True
"""Whether this Agent can be selected by a binding resolver."""
metadata: dict[str, typing.Any] = pydantic.Field(default_factory=dict)
"""Non-protocol diagnostic metadata, such as legacy config source."""
class AgentBinding(pydantic.BaseModel):
"""Binding configuration for mapping events to runners.
This is Host-internal model for event-to-runner binding.
It replaces the old Pipeline runner config role.
"""
binding_id: str
"""Unique binding identifier."""
scope: BindingScope = pydantic.Field(default_factory=BindingScope)
"""Binding scope."""
event_types: list[str] = pydantic.Field(default_factory=lambda: ["message.received"])
"""Event types this binding handles."""
runner_id: str
"""Runner ID to invoke."""
runner_config: dict[str, typing.Any] = pydantic.Field(default_factory=dict)
"""Current Agent/runner configuration."""
resource_policy: ResourcePolicy = pydantic.Field(default_factory=ResourcePolicy)
"""Resource policy."""
state_policy: StatePolicy = pydantic.Field(default_factory=StatePolicy)
"""State policy."""
delivery_policy: DeliveryPolicy = pydantic.Field(default_factory=DeliveryPolicy)
"""Delivery policy."""
enabled: bool = True
"""Whether binding is enabled."""
agent_id: str | None = None
"""Host-side Agent/config identifier for this binding."""
+91
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"""Agent runner ID parsing and formatting."""
from __future__ import annotations
import dataclasses
@dataclasses.dataclass(frozen=True)
class RunnerIdParts:
"""Parsed runner ID components."""
source: str # 'plugin' (future: 'builtin')
plugin_author: str
plugin_name: str
runner_name: str
def to_plugin_id(self) -> str:
"""Return plugin identifier as author/name."""
return f'{self.plugin_author}/{self.plugin_name}'
def parse_runner_id(runner_id: str) -> RunnerIdParts:
"""Parse runner ID string into components.
Args:
runner_id: Runner ID in format 'plugin:author/plugin_name/runner_name'
Returns:
RunnerIdParts with parsed components
Raises:
ValueError: If runner_id format is invalid
"""
if runner_id.startswith('plugin:'):
parts = runner_id[7:].split('/')
if len(parts) != 3:
raise ValueError(
f'Invalid plugin runner ID format: {runner_id}. '
f'Expected: plugin:author/plugin_name/runner_name'
)
plugin_author, plugin_name, runner_name = parts
if not plugin_author or not plugin_name or not runner_name:
raise ValueError(
f'Invalid plugin runner ID: {runner_id}. '
f'author, plugin_name, and runner_name must be non-empty'
)
return RunnerIdParts(
source='plugin',
plugin_author=plugin_author,
plugin_name=plugin_name,
runner_name=runner_name,
)
else:
# Only plugin runner IDs are valid at the protocol boundary.
raise ValueError(
f'Invalid runner ID format: {runner_id}. '
f'Expected: plugin:author/plugin_name/runner_name'
)
def format_runner_id(
source: str,
plugin_author: str,
plugin_name: str,
runner_name: str,
) -> str:
"""Format runner ID from components.
Args:
source: Runner source ('plugin')
plugin_author: Plugin author
plugin_name: Plugin name
runner_name: Runner component name
Returns:
Runner ID string
"""
if source == 'plugin':
return f'plugin:{plugin_author}/{plugin_name}/{runner_name}'
else:
raise ValueError(f'Invalid runner source: {source}')
def is_plugin_runner_id(runner_id: str) -> bool:
"""Check if runner ID is a plugin runner.
Args:
runner_id: Runner ID string
Returns:
True if runner ID starts with 'plugin:'
"""
return runner_id.startswith('plugin:')
+131
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"""Plugin-runtime invocation for AgentRunner executions."""
from __future__ import annotations
import asyncio
import time
import traceback
import typing
from langbot_plugin.entities.io.errors import ActionCallTimeoutError
from ...core import app
from .context_builder import AgentRunContextPayload
from .descriptor import AgentRunnerDescriptor
from .errors import RunnerExecutionError
class AgentRunnerInvoker:
"""Invoke an AgentRunner through the plugin runtime.
This keeps runtime transport, deadline enforcement, and transport error
mapping out of the orchestration state machine.
"""
ap: app.Application
def __init__(self, ap: app.Application):
self.ap = ap
async def invoke(
self,
descriptor: AgentRunnerDescriptor,
context: AgentRunContextPayload,
) -> typing.AsyncGenerator[dict[str, typing.Any], None]:
"""Invoke the runner and yield raw result dictionaries."""
if not self.ap.plugin_connector.is_enable_plugin:
raise RunnerExecutionError(
descriptor.id,
'Plugin system is disabled',
retryable=False,
)
try:
gen = self.ap.plugin_connector.run_agent(
plugin_author=descriptor.plugin_author,
plugin_name=descriptor.plugin_name,
runner_name=descriptor.runner_name,
context=context,
)
while True:
try:
result_dict = await self._next_with_deadline(gen, descriptor, context)
except StopAsyncIteration:
break
yield result_dict
except asyncio.TimeoutError as e:
raise RunnerExecutionError(
descriptor.id,
'Runner timed out (code: runner.timeout)',
retryable=True,
) from e
except ActionCallTimeoutError as e:
raise RunnerExecutionError(
descriptor.id,
f'{e} (code: runner.timeout)',
retryable=True,
) from e
except RunnerExecutionError:
raise
except Exception as e:
self.ap.logger.error(
f'Runner {descriptor.id} unexpected error: {traceback.format_exc()}'
)
raise RunnerExecutionError(
descriptor.id,
str(e),
retryable=False,
)
async def _next_with_deadline(
self,
gen: typing.AsyncGenerator[dict[str, typing.Any], None],
descriptor: AgentRunnerDescriptor,
context: AgentRunContextPayload,
) -> dict[str, typing.Any]:
"""Read the next runner result while enforcing the run deadline."""
remaining = self._remaining_deadline_seconds(context)
if remaining is not None and remaining <= 0:
await self._close_generator(gen, descriptor)
raise asyncio.TimeoutError
try:
if remaining is None:
return await anext(gen)
return await asyncio.wait_for(anext(gen), timeout=remaining)
except StopAsyncIteration:
if self._is_deadline_exhausted(context):
raise asyncio.TimeoutError
raise
except asyncio.TimeoutError:
await self._close_generator(gen, descriptor)
raise
def _remaining_deadline_seconds(
self,
context: AgentRunContextPayload,
) -> float | None:
runtime = context.get('runtime') or {}
deadline_at = runtime.get('deadline_at')
if deadline_at is None:
return None
try:
return float(deadline_at) - time.time()
except (TypeError, ValueError):
return None
def _is_deadline_exhausted(self, context: AgentRunContextPayload) -> bool:
remaining = self._remaining_deadline_seconds(context)
return remaining is not None and remaining <= 0
async def _close_generator(
self,
gen: typing.AsyncGenerator[dict[str, typing.Any], None],
descriptor: AgentRunnerDescriptor,
) -> None:
try:
await gen.aclose()
except Exception as e:
self.ap.logger.warning(f'Failed to close timed-out runner {descriptor.id}: {e}')
@@ -0,0 +1,536 @@
"""Agent run orchestrator for coordinating runner execution."""
from __future__ import annotations
import time
import typing
from langbot_plugin.api.entities.builtin.provider import message as provider_message
from langbot_plugin.api.entities.builtin.pipeline import query as pipeline_query
from ...core import app
from .binding_resolver import AgentBindingResolver
from .context_builder import AgentRunContextBuilder, AgentRunContextPayload
from .descriptor import AgentRunnerDescriptor
from .host_models import AgentBinding, AgentEventEnvelope
from .invoker import AgentRunnerInvoker
from .query_bridge import QueryRunBridge
from .registry import AgentRunnerRegistry
from .resource_builder import AgentResourceBuilder
from .result_normalizer import AgentResultNormalizer
from .run_journal import AgentRunJournal
from .session_registry import AgentRunSessionRegistry, get_session_registry
from .state_scope import build_state_context
from ...provider.tools.loaders import skill as skill_loader
ACTIVATED_SKILL_NAMES_STATE_KEY = 'host.activated_skills'
class AgentRunOrchestrator:
"""Coordinate one AgentRunner execution.
The orchestrator keeps the run state machine readable and delegates
transport, Query bridging, and persistence side effects to narrower
collaborators.
"""
ap: app.Application
registry: AgentRunnerRegistry
context_builder: AgentRunContextBuilder
resource_builder: AgentResourceBuilder
result_normalizer: AgentResultNormalizer
binding_resolver: AgentBindingResolver
query_bridge: QueryRunBridge
invoker: AgentRunnerInvoker
journal: AgentRunJournal
_session_registry: AgentRunSessionRegistry
def __init__(
self,
ap: app.Application,
registry: AgentRunnerRegistry,
):
self.ap = ap
self.registry = registry
self.context_builder = AgentRunContextBuilder(ap)
self.resource_builder = AgentResourceBuilder(ap)
self.result_normalizer = AgentResultNormalizer(ap)
self.binding_resolver = AgentBindingResolver()
self.query_bridge = QueryRunBridge(self.binding_resolver)
self.invoker = AgentRunnerInvoker(ap)
self.journal = AgentRunJournal(ap)
self._session_registry = get_session_registry()
async def run(
self,
event: AgentEventEnvelope,
binding: AgentBinding,
bound_plugins: list[str] | None = None,
adapter_context: dict[str, typing.Any] | None = None,
) -> typing.AsyncGenerator[provider_message.Message | provider_message.MessageChunk, None]:
"""Run an AgentRunner from an event-first envelope."""
runner_id = binding.runner_id
descriptor = await self.registry.get(runner_id, bound_plugins)
resources = await self.resource_builder.build_resources_from_binding(
event=event,
binding=binding,
descriptor=descriptor,
)
context = await self.context_builder.build_context_from_event(
event=event,
binding=binding,
descriptor=descriptor,
resources=resources,
)
session_query_id = None
if adapter_context:
query = adapter_context.get('_query')
if query is not None:
skill_loader.restore_activated_skills_from_state(
self.ap,
query,
context.get('state', {}),
)
session_query_id = adapter_context.get('query_id')
if query is not None or session_query_id is not None:
context['context']['available_apis']['prompt_get'] = True
if 'params' in adapter_context:
context['adapter']['extra']['params'] = adapter_context['params']
state_context = build_state_context(event, binding, descriptor)
run_id = context['run_id']
available_apis = context.get('context', {}).get('available_apis')
run_authorization = {
'runner_id': descriptor.id,
'binding_id': binding.binding_id,
'plugin_identity': descriptor.get_plugin_id(),
'resources': resources,
'available_apis': available_apis,
'conversation_id': event.conversation_id,
'bot_id': event.bot_id,
'workspace_id': event.workspace_id,
'thread_id': event.thread_id,
'state_policy': {
'enable_state': binding.state_policy.enable_state,
'state_scopes': list(binding.state_policy.state_scopes),
},
'state_context': state_context,
}
seen_sequences: set[int] = set()
last_sequence = 0
assistant_transcript_written = False
terminal_status: str | None = None
terminal_reason: str | None = None
terminal_usage: dict[str, typing.Any] | None = None
try:
await self.journal.create_run(
event=event,
binding=binding,
descriptor=descriptor,
context=context,
authorization=run_authorization,
)
await self._session_registry.register(
run_id=run_id,
runner_id=descriptor.id,
query_id=session_query_id,
plugin_identity=descriptor.get_plugin_id(),
resources=resources,
available_apis=context.get('context', {}).get('available_apis'),
conversation_id=event.conversation_id,
bot_id=event.bot_id,
workspace_id=event.workspace_id,
thread_id=event.thread_id,
state_policy={
'enable_state': binding.state_policy.enable_state,
'state_scopes': list(binding.state_policy.state_scopes),
},
state_context=state_context,
)
event_log_id = await self.journal.write_event_log(
event=event,
binding=binding,
run_id=run_id,
runner_id=descriptor.id,
)
if event.event_type == 'message.received' and event.conversation_id:
await self.journal.write_user_transcript(
event=event,
event_log_id=event_log_id,
)
async for result_dict in self.invoker.invoke(descriptor, context):
result_dict = dict(result_dict)
sequence = result_dict.get('sequence')
if sequence is not None:
try:
sequence_int = int(sequence)
except (TypeError, ValueError):
self.ap.logger.warning(f'Runner {descriptor.id} returned invalid result sequence: {sequence}')
sequence_int = last_sequence + 1
result_dict['sequence'] = sequence_int
else:
if sequence_int in seen_sequences:
self.ap.logger.warning(
f'Runner {descriptor.id} returned duplicate result sequence '
f'{sequence_int} for run {run_id}; dropping duplicate'
)
continue
if sequence_int <= 0:
self.ap.logger.warning(
f'Runner {descriptor.id} returned non-positive result sequence '
f'{sequence_int} for run {run_id}'
)
sequence_int = last_sequence + 1
result_dict['sequence'] = sequence_int
elif last_sequence and sequence_int != last_sequence + 1:
self.ap.logger.warning(
f'Runner {descriptor.id} result sequence gap or out-of-order '
f'for run {run_id}: previous={last_sequence}, current={sequence_int}'
)
seen_sequences.add(sequence_int)
last_sequence = max(last_sequence, sequence_int)
else:
sequence_int = last_sequence + 1
result_dict['sequence'] = sequence_int
seen_sequences.add(sequence_int)
last_sequence = sequence_int
result_type = result_dict.get('type')
if result_type and not self.result_normalizer.validate_payload(
result_type,
result_dict.get('data', {}),
descriptor,
):
continue
await self.journal.append_run_result(
result_dict=result_dict,
run_id=run_id,
sequence=sequence_int,
)
if result_type == 'state.updated':
await self.journal.handle_state_updated_event(
result_dict,
event,
binding,
descriptor,
run_id=run_id,
)
await self.result_normalizer.normalize(result_dict, descriptor)
continue
if result_type == 'run.completed':
terminal_status = 'completed'
terminal_reason = (
result_dict.get('data', {}).get('finish_reason')
if isinstance(result_dict.get('data'), dict)
else None
)
usage = result_dict.get('usage')
if isinstance(usage, dict):
terminal_usage = usage
elif result_type == 'run.failed':
terminal_status = 'failed'
data = result_dict.get('data') if isinstance(result_dict.get('data'), dict) else {}
terminal_reason = data.get('error') or data.get('code')
usage = result_dict.get('usage')
if isinstance(usage, dict):
terminal_usage = usage
has_completed_message = result_type == 'message.completed' or (
result_type == 'run.completed'
and isinstance(result_dict.get('data'), dict)
and bool(result_dict['data'].get('message'))
)
if has_completed_message and event.conversation_id and not assistant_transcript_written:
await self.journal.write_assistant_transcript(
result_dict=result_dict,
event=event,
run_id=run_id,
runner_id=descriptor.id,
)
assistant_transcript_written = True
result = await self.result_normalizer.normalize(result_dict, descriptor)
if result is not None:
yield result
run_snapshot = await self.journal.get_run(run_id)
if run_snapshot and run_snapshot.get('cancel_requested_at') is not None:
terminal_status = 'cancelled'
terminal_reason = run_snapshot.get('status_reason') or 'cancel_requested'
break
await self.journal.finalize_run(
run_id=run_id,
status=terminal_status or 'completed',
status_reason=terminal_reason,
usage=terminal_usage,
)
except Exception as exc:
failed_usage = terminal_usage
await self.journal.finalize_run(
run_id=run_id,
status='timeout' if self._is_deadline_exhausted(context) else 'failed',
status_reason=str(exc),
usage=failed_usage,
)
raise
finally:
session = await self._session_registry.unregister(run_id)
pending_steering = session.get('steering_queue', []) if session else []
if pending_steering:
try:
await self.journal.write_steering_dropped_audits(
pending_steering,
run_id,
descriptor.id,
)
except Exception as exc:
self.ap.logger.warning(
f'Failed to write dropped steering audit for run {run_id}: {exc}',
exc_info=True,
)
async def run_from_query(
self,
query: pipeline_query.Query,
) -> typing.AsyncGenerator[provider_message.Message | provider_message.MessageChunk, None]:
"""Run an AgentRunner from the current Pipeline Query entry point."""
plan = self.query_bridge.build_plan(query)
adapter_context = dict(plan.adapter_context)
adapter_context['_query'] = query
# Materialize inbound attachments into sandbox before running
await self._materialize_inbound_attachments(query, plan.event)
async for result in self.run(
plan.event,
plan.binding,
bound_plugins=plan.bound_plugins,
adapter_context=adapter_context,
):
yield result
async def _materialize_inbound_attachments(
self,
query: pipeline_query.Query,
event: AgentEventEnvelope,
) -> None:
"""Persist inbound attachments into the sandbox and update event.input.attachments.
No-op when the box service is unavailable or there are no attachments.
On success, updates each attachment in event.input.attachments with the
sandbox path so runners can tell the model where to find the files.
"""
box_service = getattr(self.ap, 'box_service', None)
if box_service is None or not getattr(box_service, 'available', False):
return
try:
materialized = await box_service.materialize_inbound_attachments(query)
except Exception as e:
# Never break the chat turn over attachment IO
self.ap.logger.warning(f'Inbound attachment materialization failed: {e}')
return
if not materialized:
return
# Build a lookup by name for matching
materialized_by_name = {att.get('name'): att for att in materialized if att.get('name')}
# Update event.input.attachments with sandbox paths
if event.input and event.input.attachments:
for attachment in event.input.attachments:
name = attachment.name
if name and name in materialized_by_name:
mat = materialized_by_name[name]
# Update the attachment with sandbox path
attachment.path = mat.get('path')
attachment.size = mat.get('size') or attachment.size
attachment.mime_type = attachment.mime_type or mat.get('mime_type')
# Store materialized descriptors in query variables for downstream use
query.variables['_sandbox_inbound_attachments'] = materialized
def resolve_runner_id_for_telemetry(self, query: pipeline_query.Query) -> str | None:
"""Resolve runner ID for telemetry/logging without full execution."""
return self.query_bridge.resolve_runner_id_for_telemetry(query)
async def try_claim_steering_from_query(
self,
query: pipeline_query.Query,
) -> bool:
"""Claim a query as steering input for an active run when possible."""
plan = self.query_bridge.build_plan(query)
event = plan.event
binding = plan.binding
if event.event_type != 'message.received' or not event.conversation_id:
return False
descriptor = await self.registry.get(binding.runner_id, plan.bound_plugins)
if not descriptor.supports_steering():
return False
target_run_id = await self._session_registry.find_steering_target(
conversation_id=event.conversation_id,
runner_id=descriptor.id,
bot_id=event.bot_id,
workspace_id=event.workspace_id,
thread_id=event.thread_id,
)
if target_run_id is None:
return False
steering_item = self._build_steering_item(event, target_run_id, descriptor.id)
if not await self._session_registry.enqueue_steering(target_run_id, steering_item):
return False
try:
event_log_id = await self.journal.write_event_log(
event=event,
binding=binding,
run_id=target_run_id,
runner_id=descriptor.id,
metadata={
'steering': {
'status': 'queued',
'trigger_behavior': 'absorbed_into_active_run',
'claimed_by_run_id': target_run_id,
'claimed_runner_id': descriptor.id,
'claimed_at': steering_item.get('claimed_at'),
},
},
)
await self.journal.write_user_transcript(event, event_log_id)
except Exception as exc:
self.ap.logger.warning(
f'Failed to persist steering event {event.event_id} for run {target_run_id}: {exc}',
exc_info=True,
)
self.ap.logger.info(f'Claimed event {event.event_id} as steering input for run {target_run_id}')
return True
def _build_steering_item(
self,
event: AgentEventEnvelope,
run_id: str,
runner_id: str,
) -> dict[str, typing.Any]:
"""Build the run-scoped steering item returned by the Host pull API."""
return {
'claimed_run_id': run_id,
'runner_id': runner_id,
'claimed_at': int(time.time()),
'event': {
'event_id': event.event_id,
'event_type': event.event_type,
'event_time': event.event_time,
'source': event.source,
'source_event_type': event.source_event_type,
'raw_ref': event.raw_ref.model_dump(mode='json') if event.raw_ref else None,
'data': event.data,
},
'conversation': {
'conversation_id': event.conversation_id,
'thread_id': event.thread_id,
'bot_id': event.bot_id,
'workspace_id': event.workspace_id,
},
'actor': event.actor.model_dump(mode='json') if event.actor else None,
'subject': event.subject.model_dump(mode='json') if event.subject else None,
'input': {
'text': event.input.text if event.input else None,
'contents': [
c.model_dump(mode='json') if hasattr(c, 'model_dump') else c
for c in (event.input.contents if event.input else [])
],
'attachments': [
a.model_dump(mode='json') if hasattr(a, 'model_dump') else a
for a in (event.input.attachments if event.input else [])
],
},
}
async def _invoke_runner(
self,
descriptor: AgentRunnerDescriptor,
context: AgentRunContextPayload,
) -> typing.AsyncGenerator[dict[str, typing.Any], None]:
"""Compatibility delegate for older tests and internal callers."""
async for result in self.invoker.invoke(descriptor, context):
yield result
async def _next_with_deadline(
self,
gen: typing.AsyncGenerator[dict[str, typing.Any], None],
descriptor: AgentRunnerDescriptor,
context: AgentRunContextPayload,
) -> dict[str, typing.Any]:
return await self.invoker._next_with_deadline(gen, descriptor, context)
def _remaining_deadline_seconds(
self,
context: AgentRunContextPayload,
) -> float | None:
return self.invoker._remaining_deadline_seconds(context)
def _is_deadline_exhausted(self, context: AgentRunContextPayload) -> bool:
return self.invoker._is_deadline_exhausted(context)
async def _close_generator(
self,
gen: typing.AsyncGenerator[dict[str, typing.Any], None],
descriptor: AgentRunnerDescriptor,
) -> None:
await self.invoker._close_generator(gen, descriptor)
async def _handle_state_updated_event(
self,
result_dict: dict[str, typing.Any],
event: AgentEventEnvelope,
binding: AgentBinding,
descriptor: AgentRunnerDescriptor,
) -> None:
await self.journal.handle_state_updated_event(result_dict, event, binding, descriptor)
async def _write_event_log(
self,
event: AgentEventEnvelope,
binding: AgentBinding,
run_id: str,
runner_id: str,
) -> str:
return await self.journal.write_event_log(event, binding, run_id, runner_id)
async def _write_user_transcript(
self,
event: AgentEventEnvelope,
event_log_id: str,
) -> None:
await self.journal.write_user_transcript(event, event_log_id)
async def _write_assistant_transcript(
self,
result_dict: dict[str, typing.Any],
event: AgentEventEnvelope,
run_id: str,
runner_id: str,
) -> None:
await self.journal.write_assistant_transcript(
result_dict=result_dict,
event=event,
run_id=run_id,
runner_id=runner_id,
)
@@ -0,0 +1,435 @@
"""Persistent state store for AgentRunner protocol state.
This module provides a database-backed state store for event-first Protocol v1.
"""
from __future__ import annotations
import typing
import json
import threading
from datetime import datetime
import sqlalchemy
from sqlalchemy.ext.asyncio import AsyncEngine
from sqlalchemy import select, delete, update
from sqlalchemy.dialects.postgresql import insert as postgresql_insert
from sqlalchemy.dialects.sqlite import insert as sqlite_insert
from sqlalchemy.exc import IntegrityError
from .descriptor import AgentRunnerDescriptor
from .host_models import AgentEventEnvelope, AgentBinding
from .state_scope import (
VALID_STATE_SCOPES,
build_state_scope_key,
get_binding_identity,
normalize_state_key,
)
from ...entity.persistence.agent_runner_state import AgentRunnerState
# Maximum value_json size (256KB)
MAX_VALUE_JSON_BYTES = 256 * 1024
class PersistentStateStore:
"""Database-backed state store for AgentRunner protocol state.
IMPORTANT: This is HOST-OWNED protocol state, NOT plugin instance state.
This store provides:
1. Persistent storage across runs via database
2. Scope isolation by runner_id + binding_identity + scope
3. Policy enforcement (enable_state, state_scopes)
4. JSON value validation and size limits
Used by:
- Event-first Protocol v1 (async methods)
- State API handlers (get/set/delete/list)
"""
def __init__(self, db_engine: AsyncEngine):
self._db_engine = db_engine
def _get_scope_key(
self,
scope: str,
event: AgentEventEnvelope,
binding: AgentBinding,
descriptor: AgentRunnerDescriptor,
) -> str | None:
"""Get scope key for given scope."""
return build_state_scope_key(scope, event, binding, descriptor)
def _check_scope_enabled(self, scope: str, binding: AgentBinding) -> bool:
"""Check if scope is enabled by binding's state_policy."""
state_policy = binding.state_policy
if not state_policy.enable_state:
return False
return scope in state_policy.state_scopes
def _validate_json_value(
self,
value: typing.Any,
logger: typing.Any = None,
) -> tuple[str | None, str | None]:
"""Validate and serialize value to JSON.
Returns:
Tuple of (json_string, error_message). If error_message is not None,
json_string will be None.
"""
try:
json_str = json.dumps(value, ensure_ascii=False)
except (TypeError, ValueError) as e:
return None, f'Value is not JSON-serializable: {e}'
# Check size limit
json_bytes = len(json_str.encode('utf-8'))
if json_bytes > MAX_VALUE_JSON_BYTES:
return None, f'Value size {json_bytes} bytes exceeds limit {MAX_VALUE_JSON_BYTES} bytes'
return json_str, None
async def _upsert_state_row(
self,
conn: typing.Any,
values: dict[str, typing.Any],
) -> None:
"""Insert or update a state row by the logical scope/key identity."""
update_values = {
'value_json': values['value_json'],
'updated_at': values['updated_at'],
}
constraint_columns = ['scope_key', 'state_key']
dialect_name = self._db_engine.dialect.name
if dialect_name == 'sqlite':
stmt = sqlite_insert(AgentRunnerState).values(**values)
await conn.execute(
stmt.on_conflict_do_update(
index_elements=constraint_columns,
set_=update_values,
)
)
return
if dialect_name == 'postgresql':
stmt = postgresql_insert(AgentRunnerState).values(**values)
await conn.execute(
stmt.on_conflict_do_update(
index_elements=constraint_columns,
set_=update_values,
)
)
return
try:
await conn.execute(sqlalchemy.insert(AgentRunnerState).values(**values))
except IntegrityError:
await conn.execute(
update(AgentRunnerState)
.where(AgentRunnerState.scope_key == values['scope_key'])
.where(AgentRunnerState.state_key == values['state_key'])
.values(**update_values)
)
# ========== Async DB Operations ==========
async def build_snapshot_from_event(
self,
event: AgentEventEnvelope,
binding: AgentBinding,
descriptor: AgentRunnerDescriptor,
) -> dict[str, dict[str, typing.Any]]:
"""Build state snapshot for all scopes from event and binding.
Reads from database, respects state_policy.
"""
state_policy = binding.state_policy
# If state is disabled, return all empty scopes
if not state_policy.enable_state:
return {
'conversation': {},
'actor': {},
'subject': {},
'runner': {},
}
snapshot: dict[str, dict[str, typing.Any]] = {
'conversation': {},
'actor': {},
'subject': {},
'runner': {},
}
async with self._db_engine.connect() as conn:
for scope in VALID_STATE_SCOPES:
if not self._check_scope_enabled(scope, binding):
continue
scope_key = self._get_scope_key(scope, event, binding, descriptor)
if not scope_key:
continue
# Query all state entries for this scope_key
result = await conn.execute(
select(AgentRunnerState.state_key, AgentRunnerState.value_json)
.where(AgentRunnerState.scope_key == scope_key)
)
rows = result.fetchall()
for row in rows:
key = row.state_key
value_json = row.value_json
if value_json:
try:
snapshot[scope][key] = json.loads(value_json)
except json.JSONDecodeError:
pass # Skip invalid JSON
# Seed external.conversation_id from event.conversation_id if not set
if self._check_scope_enabled('conversation', binding) and event.conversation_id:
if 'external.conversation_id' not in snapshot['conversation']:
snapshot['conversation']['external.conversation_id'] = event.conversation_id
return snapshot
async def apply_update_from_event(
self,
event: AgentEventEnvelope,
binding: AgentBinding,
descriptor: AgentRunnerDescriptor,
scope: str,
key: str,
value: typing.Any,
logger: typing.Any = None,
) -> tuple[bool, str | None]:
"""Apply a state update from event context.
Returns:
Tuple of (success, error_message). If success is False, error_message
contains the reason.
"""
state_policy = binding.state_policy
# Check if state is disabled
if not state_policy.enable_state:
return False, 'State is disabled by binding policy'
# Validate scope
if scope not in VALID_STATE_SCOPES:
return False, f'Invalid scope: {scope}'
# Check if scope is enabled
if not self._check_scope_enabled(scope, binding):
return False, f'Scope "{scope}" not enabled by binding policy'
# Map accepted key aliases
key = normalize_state_key(key)
# Get scope key
scope_key = self._get_scope_key(scope, event, binding, descriptor)
if not scope_key:
return False, f'Missing identity for scope "{scope}"'
# Validate and serialize value
value_json, error = self._validate_json_value(value, logger)
if error:
return False, error
# Build context fields
binding_identity = get_binding_identity(binding)
now = datetime.utcnow()
async with self._db_engine.begin() as conn:
await self._upsert_state_row(
conn,
{
'runner_id': descriptor.id,
'binding_identity': binding_identity,
'scope': scope,
'scope_key': scope_key,
'state_key': key,
'value_json': value_json,
'bot_id': event.bot_id,
'workspace_id': event.workspace_id,
'conversation_id': event.conversation_id,
'thread_id': event.thread_id,
'actor_type': event.actor.actor_type if event.actor else None,
'actor_id': event.actor.actor_id if event.actor else None,
'subject_type': event.subject.subject_type if event.subject else None,
'subject_id': event.subject.subject_id if event.subject else None,
'created_at': now,
'updated_at': now,
},
)
return True, None
async def state_get(
self,
scope_key: str,
state_key: str,
) -> typing.Any:
"""Get a single state value by scope_key and state_key.
Used by State API handlers.
"""
state_key = normalize_state_key(state_key)
async with self._db_engine.connect() as conn:
result = await conn.execute(
select(AgentRunnerState.value_json)
.where(AgentRunnerState.scope_key == scope_key)
.where(AgentRunnerState.state_key == state_key)
)
row = result.first()
if not row or not row.value_json:
return None
try:
return json.loads(row.value_json)
except json.JSONDecodeError:
return None
async def state_set(
self,
scope_key: str,
state_key: str,
value: typing.Any,
runner_id: str,
binding_identity: str,
scope: str,
context: dict[str, typing.Any] | None = None,
logger: typing.Any = None,
) -> tuple[bool, str | None]:
"""Set a state value.
Used by State API handlers.
Context contains optional fields like bot_id, conversation_id, etc.
"""
state_key = normalize_state_key(state_key)
# Validate and serialize value
value_json, error = self._validate_json_value(value, logger)
if error:
return False, error
context = context or {}
now = datetime.utcnow()
async with self._db_engine.begin() as conn:
await self._upsert_state_row(
conn,
{
'runner_id': runner_id,
'binding_identity': binding_identity,
'scope': scope,
'scope_key': scope_key,
'state_key': state_key,
'value_json': value_json,
'bot_id': context.get('bot_id'),
'workspace_id': context.get('workspace_id'),
'conversation_id': context.get('conversation_id'),
'thread_id': context.get('thread_id'),
'actor_type': context.get('actor_type'),
'actor_id': context.get('actor_id'),
'subject_type': context.get('subject_type'),
'subject_id': context.get('subject_id'),
'created_at': now,
'updated_at': now,
},
)
return True, None
async def state_delete(
self,
scope_key: str,
state_key: str,
) -> bool:
"""Delete a state value.
Returns True if deleted, False if not found.
"""
state_key = normalize_state_key(state_key)
async with self._db_engine.begin() as conn:
result = await conn.execute(
delete(AgentRunnerState)
.where(AgentRunnerState.scope_key == scope_key)
.where(AgentRunnerState.state_key == state_key)
)
return (result.rowcount or 0) > 0
async def state_list(
self,
scope_key: str,
prefix: str | None = None,
limit: int = 100,
) -> tuple[list[str], bool]:
"""List state keys in a scope.
Returns tuple of (keys, has_more).
"""
# Enforce limit cap
limit = min(limit, 100)
async with self._db_engine.connect() as conn:
query = (
select(AgentRunnerState.state_key)
.where(AgentRunnerState.scope_key == scope_key)
.order_by(AgentRunnerState.state_key)
.limit(limit + 1) # Fetch one extra to check has_more
)
if prefix:
prefix = normalize_state_key(prefix)
query = query.where(
AgentRunnerState.state_key.like(f'{prefix}%')
)
result = await conn.execute(query)
rows = result.fetchall()
keys = [row.state_key for row in rows[:limit]]
has_more = len(rows) > limit
return keys, has_more
async def clear_all(self) -> None:
"""Clear all state entries (for testing)."""
async with self._db_engine.begin() as conn:
await conn.execute(delete(AgentRunnerState))
# Global singleton persistent state store
_persistent_state_store: PersistentStateStore | None = None
_persistent_state_store_lock = threading.Lock()
def get_persistent_state_store(db_engine: AsyncEngine | None = None) -> PersistentStateStore:
"""Get the global persistent state store singleton.
Args:
db_engine: Database engine (required on first call)
Returns:
PersistentStateStore singleton
"""
global _persistent_state_store
with _persistent_state_store_lock:
if _persistent_state_store is None:
if db_engine is None:
raise RuntimeError("db_engine required for first call to get_persistent_state_store")
_persistent_state_store = PersistentStateStore(db_engine)
return _persistent_state_store
def reset_persistent_state_store() -> None:
"""Reset the global persistent state store (for testing)."""
global _persistent_state_store
with _persistent_state_store_lock:
_persistent_state_store = None
@@ -0,0 +1,56 @@
"""Pipeline Query bridge for AgentRunner execution."""
from __future__ import annotations
import dataclasses
import typing
from langbot_plugin.api.entities.builtin.pipeline import query as pipeline_query
from .binding_resolver import AgentBindingResolver
from .config_migration import ConfigMigration
from .errors import RunnerNotFoundError
from .host_models import AgentBinding, AgentEventEnvelope
from .query_entry_adapter import QueryEntryAdapter
@dataclasses.dataclass(frozen=True)
class QueryRunPlan:
"""Projected event-first execution request for a Query-backed run."""
event: AgentEventEnvelope
binding: AgentBinding
bound_plugins: list[str] | None
adapter_context: dict[str, typing.Any]
class QueryRunBridge:
"""Project the current Pipeline Query entry point into Protocol v1 inputs."""
binding_resolver: AgentBindingResolver
def __init__(self, binding_resolver: AgentBindingResolver):
self.binding_resolver = binding_resolver
def build_plan(self, query: pipeline_query.Query) -> QueryRunPlan:
"""Build an event-first run plan from a Pipeline Query."""
runner_id = ConfigMigration.resolve_runner_id(query.pipeline_config)
if not runner_id:
raise RunnerNotFoundError('no runner configured')
event = QueryEntryAdapter.query_to_event(query)
agent_config = QueryEntryAdapter.config_to_agent_config(query, runner_id)
binding = self.binding_resolver.resolve_one(event, [agent_config])
bound_plugins = query.variables.get('_pipeline_bound_plugins')
adapter_context = QueryEntryAdapter.build_adapter_context(query, binding)
return QueryRunPlan(
event=event,
binding=binding,
bound_plugins=bound_plugins,
adapter_context=adapter_context,
)
def resolve_runner_id_for_telemetry(self, query: pipeline_query.Query) -> str | None:
"""Resolve runner ID for telemetry/logging without full execution."""
return ConfigMigration.resolve_runner_id(query.pipeline_config)
@@ -0,0 +1,649 @@
"""Query entry adapter for converting Query to event-first envelope.
This adapter bridges the current Query entry point with the event-first
Protocol v1 architecture without exposing Query internals to runners.
"""
from __future__ import annotations
import hashlib
import typing
from langbot_plugin.api.entities.builtin.pipeline import query as pipeline_query
from langbot_plugin.api.entities.builtin.platform import message as platform_message
from langbot_plugin.api.entities.builtin.agent_runner.event import (
AgentEventContext,
ConversationContext,
ActorContext,
SubjectContext,
RawEventRef,
)
from langbot_plugin.api.entities.builtin.agent_runner.input import AgentInput
from langbot_plugin.api.entities.builtin.agent_runner.delivery import DeliveryContext
from .host_models import (
AgentConfig,
AgentEventEnvelope,
ResourcePolicy,
StatePolicy,
DeliveryPolicy,
)
from .config_migration import ConfigMigration
from . import events as runner_events
class QueryEntryAdapter:
"""Adapter for converting Query to event-first envelope.
This adapter is responsible for:
- Converting Query to AgentEventEnvelope
- Projecting current Pipeline config to temporary AgentConfig
- Putting Query-only fields into adapter context
"""
INTERNAL_PREFIX = '_'
SENSITIVE_PATTERNS = ('secret', 'token', 'key', 'password', 'credential', 'api_key', 'apikey')
PERMISSION_VARS = ('_pipeline_bound_plugins', '_authorized', '_permission')
EVENT_DATA_MAX_STRING_BYTES = 512
@classmethod
def query_to_event(
cls,
query: pipeline_query.Query,
) -> AgentEventEnvelope:
"""Convert Query to AgentEventEnvelope.
Args:
query: Current entry query
Returns:
AgentEventEnvelope for event-first processing
"""
# Build event context
event = cls._build_event_context(query)
# Build conversation context
conversation = cls._build_conversation_context(query)
# Build actor context
actor = cls._build_actor_context(query)
# Build subject context
subject = cls._build_subject_context(query)
# Build input
input = cls._build_input(query)
# Build delivery context
delivery = cls._build_delivery_context(query)
# Build raw ref
raw_ref = cls._build_raw_ref(query)
return AgentEventEnvelope(
event_id=event.event_id or str(query.query_id),
event_type=event.event_type or runner_events.MESSAGE_RECEIVED,
event_time=event.event_time,
source="host_adapter",
source_event_type=event.source_event_type,
bot_id=query.bot_uuid,
workspace_id=None, # Not available in Query
conversation_id=conversation.conversation_id,
thread_id=conversation.thread_id,
actor=actor,
subject=subject,
input=input,
delivery=delivery,
raw_ref=raw_ref,
data=event.data,
)
@classmethod
def config_to_agent_config(
cls,
query: pipeline_query.Query,
runner_id: str,
) -> AgentConfig:
"""Project the current Pipeline config container into target Agent config."""
pipeline_config = query.pipeline_config or {}
runner_config = ConfigMigration.resolve_runner_config(pipeline_config, runner_id)
agent_id = getattr(query, 'pipeline_uuid', None)
# Build resource policy from current config
resource_policy = ResourcePolicy(
allowed_model_uuids=cls._extract_allowed_models(query),
allowed_tool_names=cls._extract_allowed_tools(query),
allowed_kb_uuids=cls._extract_allowed_kbs(query),
allowed_skill_names=cls._extract_allowed_skills(query),
)
# Build state policy
state_policy = StatePolicy(
enable_state=True,
state_scopes=["conversation", "actor", "subject", "runner"],
)
# Build delivery policy
delivery_policy = DeliveryPolicy(
enable_streaming=True,
enable_reply=True,
)
return AgentConfig(
agent_id=agent_id,
runner_id=runner_id,
runner_config=runner_config,
resource_policy=resource_policy,
state_policy=state_policy,
delivery_policy=delivery_policy,
event_types=[runner_events.MESSAGE_RECEIVED],
enabled=True,
metadata={'source': 'pipeline_adapter'},
)
@classmethod
def build_adapter_context(
cls,
query: pipeline_query.Query,
binding: AgentBinding,
) -> dict[str, typing.Any]:
"""Build Query-derived fields for the current entry adapter."""
return {
'params': cls.build_params(query),
'query_id': getattr(query, 'query_id', None),
}
@classmethod
def build_params(cls, query: pipeline_query.Query) -> dict[str, typing.Any]:
"""Build adapter params from Pipeline variables with host filtering."""
params: dict[str, typing.Any] = {}
variables = getattr(query, 'variables', None)
if not variables:
return params
for key, value in variables.items():
if key.startswith(cls.INTERNAL_PREFIX):
continue
key_lower = key.lower()
if any(pattern in key_lower for pattern in cls.SENSITIVE_PATTERNS):
continue
if any(key == perm_var or key.startswith(perm_var) for perm_var in cls.PERMISSION_VARS):
continue
if cls.is_json_serializable(value):
params[key] = value
return params
@classmethod
def is_json_serializable(cls, value: typing.Any) -> bool:
"""Return whether a value can safely cross the adapter boundary as JSON."""
if value is None or isinstance(value, (str, int, float, bool)):
return True
if isinstance(value, (list, tuple)):
return all(cls.is_json_serializable(item) for item in value)
if isinstance(value, dict):
return all(
isinstance(k, str) and cls.is_json_serializable(v)
for k, v in value.items()
)
return False
# Private helper methods
@classmethod
def _build_event_context(
cls,
query: pipeline_query.Query,
) -> AgentEventContext:
"""Build AgentEventContext from Query."""
message_event = getattr(query, 'message_event', None)
event_data: dict[str, typing.Any] = {}
if message_event and hasattr(message_event, 'model_dump'):
try:
raw_event_data = message_event.model_dump(mode='json')
except TypeError:
raw_event_data = message_event.model_dump()
except Exception:
raw_event_data = {}
if isinstance(raw_event_data, dict):
event_data = cls._compact_event_data(raw_event_data)
source_event_type = None
if message_event:
source_event_type = getattr(message_event, 'type', None)
message_chain = getattr(query, 'message_chain', None)
message_id = getattr(message_chain, 'message_id', None)
if message_id == -1:
message_id = None
event_time = None
if message_event:
event_time = getattr(message_event, 'time', None)
if isinstance(event_time, (int, float)):
event_time = int(event_time)
source_event_id = str(message_id or query.query_id)
return AgentEventContext(
event_id=cls._build_scoped_event_id(query, source_event_id, event_time),
event_type=runner_events.MESSAGE_RECEIVED,
event_time=event_time,
source="host_adapter",
source_event_type=source_event_type,
data=event_data,
)
@classmethod
def _compact_event_data(
cls,
event_data: dict[str, typing.Any],
) -> dict[str, typing.Any]:
"""Keep only small scalar source-event metadata in event.data."""
compact: dict[str, typing.Any] = {}
for key, value in event_data.items():
if key == 'source_platform_object' or key.startswith('_'):
continue
if value is None or isinstance(value, (bool, int, float)):
compact[key] = value
continue
if isinstance(value, str):
if len(value.encode('utf-8')) <= cls.EVENT_DATA_MAX_STRING_BYTES:
compact[key] = value
continue
return compact
@classmethod
def _build_scoped_event_id(
cls,
query: pipeline_query.Query,
source_event_id: str,
event_time: int | None,
) -> str:
"""Build a globally unique host event id from pipeline-local ids."""
launcher_type = getattr(query, 'launcher_type', None)
launcher_type_value = getattr(launcher_type, 'value', launcher_type) if launcher_type is not None else None
scope_parts = [
'host_adapter',
getattr(query, 'pipeline_uuid', None),
getattr(query, 'bot_uuid', None),
launcher_type_value,
getattr(query, 'launcher_id', None),
getattr(query, 'sender_id', None),
source_event_id,
event_time,
]
scoped = '|'.join('' if part is None else str(part) for part in scope_parts)
digest = hashlib.sha256(scoped.encode('utf-8')).hexdigest()[:32]
return f'host:{digest}'
@classmethod
def _build_conversation_context(
cls,
query: pipeline_query.Query,
) -> ConversationContext:
"""Build ConversationContext from Query."""
# Handle launcher_type safely
launcher_type = getattr(query, 'launcher_type', None)
launcher_type_value = None
if launcher_type is not None:
launcher_type_value = getattr(launcher_type, 'value', launcher_type)
# Handle launcher_id
launcher_id = getattr(query, 'launcher_id', None)
# Build session_id from launcher info if available
session_id = None
if launcher_type_value and launcher_id:
session_id = f'{launcher_type_value}_{launcher_id}'
# Handle session and conversation_id
conversation_id = None
session = getattr(query, 'session', None)
if session:
conversation = getattr(session, 'using_conversation', None)
if conversation:
conversation_id = getattr(conversation, 'uuid', None)
if not conversation_id:
variables = getattr(query, 'variables', None) or {}
conversation_id = variables.get('conversation_id') or None
if not conversation_id:
conversation_id = session_id
# Handle sender_id
sender_id = getattr(query, 'sender_id', None)
if sender_id is not None:
sender_id = str(sender_id)
# Handle bot_uuid
bot_uuid = getattr(query, 'bot_uuid', None)
return ConversationContext(
conversation_id=str(conversation_id) if conversation_id is not None else None,
thread_id=None,
launcher_type=launcher_type_value,
launcher_id=launcher_id,
sender_id=sender_id,
bot_id=bot_uuid,
workspace_id=None,
session_id=session_id,
)
@classmethod
def _build_actor_context(
cls,
query: pipeline_query.Query,
) -> ActorContext:
"""Build ActorContext from Query."""
message_event = getattr(query, 'message_event', None)
sender = getattr(message_event, 'sender', None) if message_event else None
sender_id = getattr(query, 'sender_id', None)
actor_id = getattr(sender, 'id', None) if sender else None
if actor_id is None:
actor_id = sender_id
actor_name = sender.get_name() if sender and hasattr(sender, 'get_name') else None
return ActorContext(
actor_type="user",
actor_id=str(actor_id) if actor_id is not None else None,
actor_name=actor_name,
metadata={},
)
@classmethod
def _build_subject_context(
cls,
query: pipeline_query.Query,
) -> SubjectContext:
"""Build SubjectContext from Query."""
message_chain = getattr(query, 'message_chain', None)
message_id = getattr(message_chain, 'message_id', None) if message_chain else None
if message_id == -1:
message_id = None
query_id = getattr(query, 'query_id', None)
# Safely get launcher_type
launcher_type = getattr(query, 'launcher_type', None)
launcher_type_value = None
if launcher_type is not None:
launcher_type_value = getattr(launcher_type, 'value', launcher_type)
return SubjectContext(
subject_type="message",
subject_id=str(message_id or query_id or ''),
data={
"launcher_type": launcher_type_value,
"launcher_id": getattr(query, 'launcher_id', None),
"sender_id": str(getattr(query, 'sender_id', '')) if getattr(query, 'sender_id', None) else None,
"bot_uuid": getattr(query, 'bot_uuid', None),
},
)
@classmethod
def _build_input(
cls,
query: pipeline_query.Query,
) -> AgentInput:
"""Build AgentInput from Query."""
text = None
text_parts: list[str] = []
contents: list[dict[str, typing.Any]] = []
user_message = getattr(query, 'user_message', None)
if user_message:
content = getattr(user_message, 'content', None)
if isinstance(content, list):
for elem in content:
elem_dict = None
if hasattr(elem, 'model_dump'):
elem_dict = elem.model_dump(mode='json')
elif isinstance(elem, dict):
elem_dict = elem
if not isinstance(elem_dict, dict):
continue
contents.append(elem_dict)
if elem_dict.get('type') == 'text':
elem_text = elem_dict.get('text')
if elem_text:
text_parts.append(elem_text)
elif content is not None:
text = str(content)
contents.append({'type': 'text', 'text': text})
if not contents:
message_chain = getattr(query, 'message_chain', None) or []
for component in message_chain:
if isinstance(component, platform_message.Plain):
component_text = getattr(component, 'text', '')
if component_text:
text_parts.append(component_text)
contents.append({'type': 'text', 'text': component_text})
elif isinstance(component, platform_message.Image):
image_base64 = getattr(component, 'base64', None)
image_url = getattr(component, 'url', None)
if image_base64:
contents.append({'type': 'image_base64', 'image_base64': image_base64})
elif image_url:
contents.append({'type': 'image_url', 'image_url': {'url': image_url}})
if text_parts:
text = ''.join(text_parts)
attachments = cls._build_attachments(query, contents)
return AgentInput(
text=text,
contents=contents,
attachments=attachments,
)
@classmethod
def _build_attachments(
cls,
query: pipeline_query.Query,
contents: list[dict[str, typing.Any]],
) -> list[dict[str, typing.Any]]:
"""Extract attachments from query."""
attachments: list[dict[str, typing.Any]] = []
seen_keys: dict[tuple[str, str, str], set[str]] = {}
def add_attachment(attachment: dict[str, typing.Any]) -> None:
key = cls._attachment_dedupe_key(attachment)
if key is not None:
source = str(attachment.get('source') or '')
sources = seen_keys.setdefault(key, set())
if source and sources and source not in sources:
return
if source:
sources.add(source)
attachments.append(attachment)
for elem in contents:
elem_type = elem.get('type')
if elem_type == 'image_url':
image_url = elem.get('image_url') or {}
add_attachment({
'type': 'image',
'source': 'url',
'url': image_url.get('url') if isinstance(image_url, dict) else str(image_url),
})
elif elem_type == 'image_base64':
add_attachment({
'type': 'image',
'source': 'base64',
'content': elem.get('image_base64'),
})
elif elem_type == 'file_url':
add_attachment({
'type': 'file',
'source': 'url',
'url': elem.get('file_url'),
'name': elem.get('file_name'),
})
elif elem_type == 'file_base64':
add_attachment({
'type': 'file',
'source': 'base64',
'content': elem.get('file_base64'),
'name': elem.get('file_name'),
})
message_chain = getattr(query, 'message_chain', None)
if message_chain:
try:
message_components = iter(message_chain)
except TypeError:
message_components = iter(())
for component in message_components:
if isinstance(component, platform_message.Image):
image_id = component.image_id or None
image_url = component.url or None
image_base64 = component.base64 or None
add_attachment({
'type': 'image',
'source': 'message_chain',
'id': image_id,
'url': image_url,
'content': image_base64,
})
elif isinstance(component, platform_message.File):
add_attachment({
'type': 'file',
'source': 'message_chain',
'id': component.id or None,
'name': component.name or None,
'url': component.url or None,
'content': component.base64 or None,
})
elif isinstance(component, platform_message.Voice):
add_attachment({
'type': 'voice',
'source': 'message_chain',
'id': component.voice_id or None,
'url': component.url or None,
'content': component.base64 or None,
})
return attachments
@classmethod
def _attachment_dedupe_key(
cls,
attachment: dict[str, typing.Any],
) -> tuple[str, str, str] | None:
"""Return a stable key for the same attachment across content sources."""
attachment_type = attachment.get('type')
if not attachment_type:
return None
for field in ('id', 'url', 'content'):
value = attachment.get(field)
if value:
if field == 'content':
value = hashlib.sha256(str(value).encode('utf-8')).hexdigest()
return str(attachment_type), field, str(value)
return None
@classmethod
def _build_delivery_context(
cls,
query: pipeline_query.Query,
) -> DeliveryContext:
"""Build DeliveryContext from Query."""
message_chain = getattr(query, 'message_chain', None)
return DeliveryContext(
surface="platform",
reply_target={
"message_id": getattr(message_chain, 'message_id', None),
},
supports_streaming=True,
supports_edit=False,
supports_reaction=False,
platform_capabilities={},
)
@classmethod
def _build_raw_ref(
cls,
query: pipeline_query.Query,
) -> RawEventRef | None:
"""Build RawEventRef from Query."""
# For now, we don't store raw event payload
return None
@classmethod
def _extract_allowed_models(
cls,
query: pipeline_query.Query,
) -> list[str] | None:
"""Extract allowed model UUIDs from query."""
model_uuids: list[str] = []
model_uuid = getattr(query, 'use_llm_model_uuid', None)
if model_uuid:
model_uuids.append(model_uuid)
variables = getattr(query, 'variables', None) or {}
for fallback_uuid in variables.get('_fallback_model_uuids', []) or []:
if fallback_uuid and fallback_uuid not in model_uuids:
model_uuids.append(fallback_uuid)
return model_uuids or None
@classmethod
def _extract_allowed_tools(
cls,
query: pipeline_query.Query,
) -> list[str] | None:
"""Extract allowed tool names from query."""
use_funcs = getattr(query, 'use_funcs', None)
if not use_funcs:
return None
try:
tool_names = []
for func in use_funcs:
if isinstance(func, dict):
name = func.get('name')
elif hasattr(func, 'name'):
name = func.name
else:
continue
if name:
tool_names.append(name)
return tool_names if tool_names else None
except (TypeError, AttributeError):
return None
@classmethod
def _extract_allowed_kbs(
cls,
query: pipeline_query.Query,
) -> list[str] | None:
"""Extract allowed knowledge base UUIDs from query."""
variables = getattr(query, 'variables', None)
if not variables:
return None
kb_uuids = variables.get('_knowledge_base_uuids')
if kb_uuids:
return kb_uuids
return None
@classmethod
def _extract_allowed_skills(
cls,
query: pipeline_query.Query,
) -> list[str] | None:
"""Extract pipeline-visible skill names from query."""
variables = getattr(query, 'variables', None)
if not variables or '_pipeline_bound_skills' not in variables:
return None
bound_skills = variables.get('_pipeline_bound_skills')
if bound_skills is None:
return None
if not isinstance(bound_skills, list):
return []
return [str(skill_name) for skill_name in bound_skills if skill_name]
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@@ -0,0 +1,273 @@
"""Agent runner registry for discovering and caching runner descriptors."""
from __future__ import annotations
import typing
import asyncio
from langbot_plugin.api.entities.builtin.agent_runner.manifest import (
AgentRunnerManifest,
)
from ...core import app
from .descriptor import AgentRunnerDescriptor
from .id import parse_runner_id, format_runner_id
from .errors import RunnerNotFoundError, RunnerNotAuthorizedError
class AgentRunnerRegistry:
"""Registry for discovering and managing agent runners.
Responsibilities:
- Discover runners from plugin runtime via LIST_AGENT_RUNNERS
- Validate runner manifests (kind, metadata, spec)
- Cache discovered runners for performance
- Filter runners by bound plugins
- Handle manifest errors gracefully (log warning, skip runner)
"""
ap: app.Application
_cache: dict[str, AgentRunnerDescriptor] | None
"""Cached runner descriptors keyed by runner ID"""
_cache_lock: asyncio.Lock
"""Lock for cache refresh operations"""
def __init__(self, ap: app.Application):
self.ap = ap
self._cache = None
self._cache_lock = asyncio.Lock()
async def _discover_runners(self) -> dict[str, AgentRunnerDescriptor]:
"""Discover runners from plugin runtime.
Always discovers ALL runners (no bound_plugins filter).
The cache should contain unfiltered discovery results.
Returns:
Dict of runner descriptors keyed by runner ID
"""
if not self.ap.plugin_connector.is_enable_plugin:
return {}
runners: dict[str, AgentRunnerDescriptor] = {}
try:
# Always list all runners (bound_plugins=None)
plugin_runners = await self.ap.plugin_connector.list_agent_runners(None)
for runner_data in plugin_runners:
try:
descriptor = self._validate_and_build_descriptor(runner_data)
if descriptor is not None:
runners[descriptor.id] = descriptor
except Exception as e:
plugin_author = runner_data.get('plugin_author', 'unknown')
plugin_name = runner_data.get('plugin_name', 'unknown')
runner_name = runner_data.get('runner_name', 'unknown')
self.ap.logger.warning(
f'Invalid runner manifest for plugin:{plugin_author}/{plugin_name}/{runner_name}: {e}'
)
continue
except Exception as e:
self.ap.logger.warning(f'Failed to list agent runners from plugin runtime: {e}')
return {}
return runners
def _validate_and_build_descriptor(self, runner_data: dict[str, typing.Any]) -> AgentRunnerDescriptor | None:
"""Validate runner manifest and build descriptor.
Args:
runner_data: Raw runner data from plugin runtime with fields:
- plugin_author, plugin_name, runner_name
- manifest (typed AgentRunnerManifest)
Returns:
AgentRunnerDescriptor if valid, None if invalid
"""
plugin_author = runner_data.get('plugin_author', '')
plugin_name = runner_data.get('plugin_name', '')
runner_name = runner_data.get('runner_name', '')
if not plugin_author or not plugin_name or not runner_name:
return None
manifest = runner_data.get('manifest', {})
runner_id = format_runner_id(
source='plugin',
plugin_author=plugin_author,
plugin_name=plugin_name,
runner_name=runner_name,
)
typed_manifest = AgentRunnerManifest.model_validate(manifest)
config_schema = [
item.model_dump(mode='json') for item in typed_manifest.config_schema
]
return AgentRunnerDescriptor(
id=runner_id,
source='plugin',
label=typed_manifest.label,
description=typed_manifest.description,
plugin_author=plugin_author,
plugin_name=plugin_name,
runner_name=runner_name,
plugin_version=runner_data.get('plugin_version'),
config_schema=config_schema,
capabilities=typed_manifest.capabilities,
permissions=typed_manifest.permissions,
raw_manifest=manifest,
)
async def refresh(self) -> None:
"""Refresh runner cache.
Always discovers ALL runners (no bound_plugins filter).
The cache contains unfiltered discovery results.
"""
async with self._cache_lock:
self._cache = await self._discover_runners()
async def list_runners(
self,
bound_plugins: list[str] | None = None,
use_cache: bool = True,
) -> list[AgentRunnerDescriptor]:
"""List available runners.
Args:
bound_plugins: Optional filter for bound plugins (applied locally)
use_cache: Use cached data if available
Returns:
List of runner descriptors
"""
if use_cache and self._cache is not None:
# Filter from cache
return self._filter_runners_by_bound_plugins(self._cache, bound_plugins)
# Discover fresh (always full list)
runners = await self._discover_runners()
# Update cache (full list, unfiltered)
async with self._cache_lock:
self._cache = runners
# Filter locally
return self._filter_runners_by_bound_plugins(runners, bound_plugins)
def _filter_runners_by_bound_plugins(
self,
runners: dict[str, AgentRunnerDescriptor],
bound_plugins: list[str] | None,
) -> list[AgentRunnerDescriptor]:
"""Filter runners by bound plugins.
Args:
runners: Dict of runner descriptors
bound_plugins: Optional filter (None means all plugins allowed)
Returns:
Filtered list of runner descriptors
"""
if bound_plugins is None:
# All plugins allowed
return list(runners.values())
allowed_plugin_ids = set(bound_plugins)
filtered = []
for descriptor in runners.values():
plugin_id = descriptor.get_plugin_id()
if plugin_id in allowed_plugin_ids:
filtered.append(descriptor)
return filtered
async def get(
self,
runner_id: str,
bound_plugins: list[str] | None = None,
) -> AgentRunnerDescriptor:
"""Get a specific runner descriptor.
Args:
runner_id: Runner ID to lookup
bound_plugins: Optional bound plugins filter
Returns:
AgentRunnerDescriptor
Raises:
RunnerNotFoundError: If runner not found
RunnerNotAuthorizedError: If runner not in bound plugins
"""
# Parse and validate runner ID format
try:
parse_runner_id(runner_id)
except ValueError as e:
raise RunnerNotFoundError(runner_id) from e
# Get from cache or discover (always full list)
if self._cache is None:
await self.refresh()
if self._cache is None:
raise RunnerNotFoundError(runner_id)
descriptor = self._cache.get(runner_id)
if descriptor is None:
raise RunnerNotFoundError(runner_id)
# Check authorization
if bound_plugins is not None:
plugin_id = descriptor.get_plugin_id()
if plugin_id not in bound_plugins:
raise RunnerNotAuthorizedError(runner_id, bound_plugins)
return descriptor
async def get_runner_metadata_for_pipeline(self) -> list[dict[str, typing.Any]]:
"""Get runner metadata for pipeline configuration UI.
Returns runner options and their config schemas for the DynamicForm.
"""
# Get all runners (no bound plugin filter for metadata listing)
runners = await self.list_runners(bound_plugins=None)
options = []
stages = []
for descriptor in runners:
config_schema = []
for index, config_item in enumerate(descriptor.config_schema):
item = dict(config_item)
if not item.get('id'):
item_name = item.get('name') or str(index)
item['id'] = f'{descriptor.id}.{item_name}'
config_schema.append(item)
# Add runner option
options.append(
{
'name': descriptor.id,
'label': descriptor.label,
'description': descriptor.description,
}
)
# Add config schema as stage if not empty
if descriptor.config_schema:
stages.append(
{
'name': descriptor.id,
'label': descriptor.label,
'description': descriptor.description,
'config': config_schema,
}
)
return options, stages
@@ -0,0 +1,319 @@
"""Agent resource builder for constructing authorized resources."""
from __future__ import annotations
import typing
from ...core import app
from .descriptor import AgentRunnerDescriptor
from .context_builder import (
AgentResources,
ModelResource,
ToolResource,
KnowledgeBaseResource,
SkillResource,
StorageResource,
)
from . import config_schema
from .host_models import AgentEventEnvelope, AgentBinding
class AgentResourceBuilder:
"""Builder for constructing run-scoped AgentResources with permission filtering.
Responsibilities:
- Apply manifest permissions intersected with binding resource policy
- Build models list from authorized models
- Build tools list from bound plugins/MCP servers
- Build knowledge_bases list from config
- Build storage access summary
Note: This only builds the resource declaration. The actual proxy actions
in handler.py must still validate against ctx.resources at runtime.
Resource field names match the plugin SDK payload:
- ModelResource: model_id, model_type, provider
- ToolResource: tool_name, tool_type, description
- KnowledgeBaseResource: kb_id, kb_name, kb_type
- SkillResource: skill_name, display_name, description
- StorageResource: plugin_storage, workspace_storage
"""
ap: app.Application
def __init__(self, ap: app.Application):
self.ap = ap
async def build_resources_from_binding(
self,
event: AgentEventEnvelope,
binding: AgentBinding,
descriptor: AgentRunnerDescriptor,
) -> AgentResources:
"""Build AgentResources from event and binding.
This is the main entry point for Protocol v1.
Args:
event: Event envelope
binding: Agent binding with resource policy
descriptor: Runner descriptor with capabilities, permissions, and config schema
Returns:
AgentResources dict with filtered resource lists
"""
resource_policy = binding.resource_policy
runner_config = binding.runner_config
manifest_perms = descriptor.permissions
# Build each resource category
models = await self._build_models_from_binding(
manifest_perms, resource_policy, descriptor, runner_config
)
tools = await self._build_tools_from_binding(
manifest_perms, resource_policy, descriptor
)
knowledge_bases = await self._build_knowledge_bases_from_binding(
manifest_perms, resource_policy, descriptor, runner_config
)
skills = self._build_skills_from_binding(
resource_policy, descriptor
)
storage = self._build_storage_from_binding(manifest_perms, binding)
return {
'models': models,
'tools': tools,
'knowledge_bases': knowledge_bases,
'skills': skills,
'storage': storage,
'platform_capabilities': {}, # Reserved for EBA
}
async def _build_models_from_binding(
self,
manifest_perms: typing.Any,
resource_policy: typing.Any,
descriptor: AgentRunnerDescriptor,
runner_config: dict[str, typing.Any],
) -> list[ModelResource]:
"""Build models list from binding."""
models: list[ModelResource] = []
seen_model_ids: set[str] = set()
model_perms = set(manifest_perms.models)
include_llm = bool({'invoke', 'stream'} & model_perms)
include_rerank = 'rerank' in model_perms
llm_operations = [operation for operation in ('invoke', 'stream') if operation in model_perms]
if not include_llm and not include_rerank:
return models
# Get additional model UUID grants from resource policy.
allowed_uuids = resource_policy.allowed_model_uuids
# Add model resources from Agent/runner config schema
await self._append_config_declared_model_resources(
models=models,
seen_model_ids=seen_model_ids,
descriptor=descriptor,
runner_config=runner_config,
include_llm=include_llm,
include_rerank=include_rerank,
llm_operations=llm_operations,
)
# Add explicitly allowed models
if allowed_uuids and include_llm:
for model_uuid in allowed_uuids:
await self._append_llm_model_resource(models, seen_model_ids, model_uuid, llm_operations)
return models
async def _build_tools_from_binding(
self,
manifest_perms: typing.Any,
resource_policy: typing.Any,
descriptor: AgentRunnerDescriptor,
) -> list[ToolResource]:
"""Build tools list from binding."""
tools: list[ToolResource] = []
tool_perms = set(manifest_perms.tools)
if not ({'detail', 'call'} & tool_perms):
return tools
if not config_schema.uses_host_tools(descriptor):
return tools
# Get tool names from resource policy
allowed_names = resource_policy.allowed_tool_names
tool_operations = [operation for operation in ('detail', 'call') if operation in tool_perms]
# Prefill full tool schema (best-effort) so runners can build LLM tool
# definitions without a per-tool get_tool_detail round-trip. Degrades to
# None when no tool manager is available.
get_tool_schema = getattr(getattr(self.ap, 'tool_mgr', None), 'get_tool_schema', None)
if allowed_names:
for tool_name in allowed_names:
if get_tool_schema is not None:
description, parameters = await get_tool_schema(tool_name)
else:
description, parameters = None, None
tools.append({
'tool_name': tool_name,
'tool_type': None,
'description': description,
'operations': tool_operations,
'parameters': parameters,
})
return tools
async def _build_knowledge_bases_from_binding(
self,
manifest_perms: typing.Any,
resource_policy: typing.Any,
descriptor: AgentRunnerDescriptor,
runner_config: dict[str, typing.Any],
) -> list[KnowledgeBaseResource]:
"""Build knowledge bases list from binding."""
kb_resources: list[KnowledgeBaseResource] = []
kb_perms = set(manifest_perms.knowledge_bases)
if not ({'list', 'retrieve'} & kb_perms):
return kb_resources
kb_operations = [operation for operation in ('list', 'retrieve') if operation in kb_perms]
if not config_schema.uses_host_knowledge_bases(descriptor):
return kb_resources
# Get KB UUID grants from schema-defined config fields.
kb_uuids = config_schema.extract_knowledge_base_uuids(descriptor, runner_config)
# Also include resource policy grants.
allowed_uuids = resource_policy.allowed_kb_uuids
if allowed_uuids:
kb_uuids = list(dict.fromkeys([*kb_uuids, *allowed_uuids]))
for kb_uuid in kb_uuids:
try:
kb = await self.ap.rag_mgr.get_knowledge_base_by_uuid(kb_uuid)
if kb:
kb_resources.append({
'kb_id': kb_uuid,
'kb_name': kb.get_name(),
'kb_type': kb.knowledge_base_entity.kb_type if hasattr(kb.knowledge_base_entity, 'kb_type') else None,
'operations': kb_operations,
})
except Exception as e:
self.ap.logger.warning(f'Failed to build knowledge base resource {kb_uuid}: {e}')
return kb_resources
def _build_skills_from_binding(
self,
resource_policy: typing.Any,
descriptor: AgentRunnerDescriptor,
) -> list[SkillResource]:
"""Build pipeline-visible skill resource facts.
Skills are exposed as authorized tools (activate / register_skill / native
exec), so skill facts are surfaced to every run that has a skill manager,
not gated by the ``skill_authoring`` capability. The capability is now a
semantic declaration only.
"""
skill_mgr = getattr(self.ap, 'skill_mgr', None)
if skill_mgr is None:
return []
loaded_skills = getattr(skill_mgr, 'skills', {}) or {}
allowed_names = resource_policy.allowed_skill_names
if allowed_names is None:
names = sorted(loaded_skills.keys())
else:
names = sorted(name for name in allowed_names if name in loaded_skills)
skills: list[SkillResource] = []
for skill_name in names:
skill_data = loaded_skills.get(skill_name) or {}
skills.append({
'skill_name': skill_name,
'display_name': skill_data.get('display_name') or skill_data.get('name') or skill_name,
'description': skill_data.get('description') or None,
})
return skills
def _build_storage_from_binding(
self,
manifest_perms: typing.Any,
binding: AgentBinding,
) -> StorageResource:
"""Build storage access summary from manifest and binding policy."""
resource_policy = binding.resource_policy
storage_perms = set(manifest_perms.storage)
return {
'plugin_storage': 'plugin' in storage_perms and resource_policy.allow_plugin_storage,
'workspace_storage': 'workspace' in storage_perms and resource_policy.allow_workspace_storage,
}
async def _append_config_declared_model_resources(
self,
models: list[ModelResource],
seen_model_ids: set[str],
descriptor: AgentRunnerDescriptor,
runner_config: dict[str, typing.Any],
include_llm: bool,
include_rerank: bool,
llm_operations: list[str],
) -> None:
"""Authorize model-like values selected through DynamicForm fields."""
for model_type, model_uuid in config_schema.iter_config_model_refs(descriptor, runner_config):
if model_type == 'llm' and include_llm:
await self._append_llm_model_resource(models, seen_model_ids, model_uuid, llm_operations)
elif model_type == 'rerank' and include_rerank:
await self._append_rerank_model_resource(models, seen_model_ids, model_uuid)
async def _append_llm_model_resource(
self,
models: list[ModelResource],
seen_model_ids: set[str],
model_uuid: str | None,
operations: list[str],
) -> None:
"""Append an LLM model resource if it exists and has not been added."""
if not model_uuid or model_uuid == '__none__' or model_uuid in seen_model_ids:
return
try:
model = await self.ap.model_mgr.get_model_by_uuid(model_uuid)
if model and model.model_entity:
models.append({
'model_id': model_uuid,
'model_type': getattr(model.model_entity, 'model_type', None),
'provider': getattr(model.provider_entity, 'name', None) if hasattr(model, 'provider_entity') else None,
'operations': operations,
})
seen_model_ids.add(model_uuid)
except Exception as e:
self.ap.logger.warning(f'Failed to build LLM model resource {model_uuid}: {e}')
async def _append_rerank_model_resource(
self,
models: list[ModelResource],
seen_model_ids: set[str],
model_uuid: str | None,
) -> None:
"""Append a rerank model resource if it exists and has not been added."""
if not model_uuid or model_uuid == '__none__' or model_uuid in seen_model_ids:
return
try:
model = await self.ap.model_mgr.get_rerank_model_by_uuid(model_uuid)
if model and model.model_entity:
models.append({
'model_id': model_uuid,
'model_type': getattr(model.model_entity, 'model_type', 'rerank') or 'rerank',
'provider': getattr(model.provider_entity, 'name', None) if hasattr(model, 'provider_entity') else None,
'operations': ['rerank'],
})
seen_model_ids.add(model_uuid)
except Exception as e:
self.ap.logger.warning(f'Failed to build rerank model resource {model_uuid}: {e}')
@@ -0,0 +1,234 @@
"""Agent result normalizer for converting AgentRunResult to Pipeline messages."""
from __future__ import annotations
import typing
import pydantic
from langbot_plugin.api.entities.builtin.agent_runner.result import (
ActionRequestedPayload,
MessageCompletedPayload,
MessageDeltaPayload,
RunCompletedPayload,
RunFailedPayload,
StateUpdatedPayload,
ToolCallCompletedPayload,
ToolCallStartedPayload,
)
from langbot_plugin.api.entities.builtin.provider import message as provider_message
from ...core import app
from .descriptor import AgentRunnerDescriptor
from .errors import RunnerExecutionError, RunnerProtocolError
# Maximum size for a single result payload (prevent memory exhaustion)
MAX_RESULT_SIZE_BYTES = 1024 * 1024 # 1 MB
STRICT_RESULT_PAYLOADS: dict[str, type[pydantic.BaseModel]] = {
'message.delta': MessageDeltaPayload,
'message.completed': MessageCompletedPayload,
'tool.call.started': ToolCallStartedPayload,
'tool.call.completed': ToolCallCompletedPayload,
'state.updated': StateUpdatedPayload,
'action.requested': ActionRequestedPayload,
'run.completed': RunCompletedPayload,
'run.failed': RunFailedPayload,
}
class AgentResultNormalizer:
"""Normalizer for converting AgentRunResult to Pipeline messages.
Responsibilities:
- Accept only supported result types (message.delta, message.completed, etc.)
- Map message.delta -> MessageChunk
- Map message.completed -> Message
- Map run.completed (with message) -> Message
- Handle run.failed as controlled error
- Ignore unknown types with warning
- Validate result size
- Validate message schema
Accepted result types:
- message.delta
- message.completed
- tool.call.started
- tool.call.completed
- state.updated
- run.completed
- run.failed
- action.requested (log only, don't execute)
"""
ap: app.Application
def __init__(self, ap: app.Application):
self.ap = ap
async def normalize(
self,
result_dict: dict[str, typing.Any],
descriptor: AgentRunnerDescriptor,
) -> provider_message.Message | provider_message.MessageChunk | None:
"""Normalize AgentRunResult to Message or MessageChunk.
Args:
result_dict: Raw result dict from plugin runtime
descriptor: Runner descriptor for error context
Returns:
Message, MessageChunk, or None (for non-message events)
Raises:
RunnerExecutionError: On run.failed
RunnerProtocolError: On invalid result format
"""
# Validate result type
result_type = result_dict.get('type')
if not result_type:
raise RunnerProtocolError(descriptor.id, 'Missing result type')
# Validate result size
try:
import json
result_json = json.dumps(result_dict)
if len(result_json) > MAX_RESULT_SIZE_BYTES:
self.ap.logger.warning(
f'Runner {descriptor.id} result too large ({len(result_json)} bytes), truncating'
)
# Truncate content if possible
data = result_dict.get('data', {})
if 'chunk' in data or 'message' in data:
content = data.get('chunk', {}).get('content', '') or data.get('message', {}).get('content', '')
if isinstance(content, str) and len(content) > 10000:
# Keep reasonable length
data['chunk'] = {'role': 'assistant', 'content': content[:10000] + '...[truncated]'}
except Exception as e:
self.ap.logger.warning(f'Failed to validate runner {descriptor.id} result size: {e}')
# Handle each result type
data = result_dict.get('data', {})
if not self.validate_payload(result_type, data, descriptor):
return None
if result_type == 'message.delta':
return self._normalize_message_delta(data, descriptor)
elif result_type == 'message.completed':
return self._normalize_message_completed(data, descriptor)
elif result_type == 'tool.call.started':
# Log only, don't yield to pipeline
self.ap.logger.debug(
f'Runner {descriptor.id} tool call started: {data.get("tool_name", "unknown")}'
)
return None
elif result_type == 'tool.call.completed':
# Log only, don't yield to pipeline
self.ap.logger.debug(
f'Runner {descriptor.id} tool call completed: {data.get("tool_name", "unknown")}'
)
return None
elif result_type == 'state.updated':
# Log for telemetry, don't yield to pipeline
# Orchestrator already handles the actual PersistentStateStore update.
scope = data.get('scope', 'unknown')
key = data.get('key', 'unknown')
value_repr = repr(data.get('value', '...'))[:100] # Truncate for log
self.ap.logger.debug(
f'Runner {descriptor.id} state.updated logged: scope={scope}, key={key}, value={value_repr}'
)
return None
elif result_type == 'run.completed':
# May include final message
if 'message' in data:
return self._normalize_message_completed(data, descriptor)
# If no message, it's just completion signal
return None
elif result_type == 'run.failed':
error_msg = data.get('error', 'Unknown error')
error_code = data.get('code', 'unknown')
retryable = data.get('retryable', False)
raise RunnerExecutionError(
descriptor.id,
f'{error_msg} (code: {error_code})',
retryable=retryable,
)
elif result_type == 'action.requested':
# Reserved for EBA - log only, don't execute
self.ap.logger.info(
f'Runner {descriptor.id} requested action (not executed in current phase): '
f'{data.get("action", "unknown")}'
)
return None
else:
# Unknown type - warn and ignore.
self.ap.logger.warning(
f'Runner {descriptor.id} returned unknown result type: {result_type}. '
f'Expected supported types (message.delta, message.completed, run.completed, run.failed, etc.)'
)
return None
def validate_payload(
self,
result_type: str,
data: typing.Any,
descriptor: AgentRunnerDescriptor,
) -> bool:
"""Validate typed payloads that affect Host state or delivery.
Tool-call telemetry stays intentionally loose so older runners can keep
emitting diagnostic fields. Unknown result types are handled by the
caller and are not validated here.
"""
payload_model = STRICT_RESULT_PAYLOADS.get(result_type)
if payload_model is None:
return True
try:
payload_model.model_validate(data)
return True
except Exception as e:
self.ap.logger.warning(
f'Runner {descriptor.id} returned invalid {result_type} payload; dropping result: {e}'
)
return False
def _normalize_message_delta(
self,
data: dict[str, typing.Any],
descriptor: AgentRunnerDescriptor,
) -> provider_message.MessageChunk:
"""Normalize message.delta to MessageChunk."""
chunk_data = data.get('chunk', {})
if not chunk_data:
raise RunnerProtocolError(descriptor.id, 'message.delta missing chunk data')
try:
chunk = provider_message.MessageChunk.model_validate(chunk_data)
return chunk
except Exception as e:
raise RunnerProtocolError(descriptor.id, f'Invalid chunk schema: {e}')
def _normalize_message_completed(
self,
data: dict[str, typing.Any],
descriptor: AgentRunnerDescriptor,
) -> provider_message.Message:
"""Normalize message.completed to Message."""
message_data = data.get('message', {})
if not message_data:
raise RunnerProtocolError(descriptor.id, 'message.completed missing message data')
try:
msg = provider_message.Message.model_validate(message_data)
return msg
except Exception as e:
raise RunnerProtocolError(descriptor.id, f'Invalid message schema: {e}')
+412
View File
@@ -0,0 +1,412 @@
"""Run-side effects for AgentRunner executions."""
from __future__ import annotations
import typing
from ...core import app
from .descriptor import AgentRunnerDescriptor
from .errors import RunnerProtocolError
from .host_models import AgentBinding, AgentEventEnvelope
from .persistent_state_store import PersistentStateStore, get_persistent_state_store
from .run_ledger_store import RunLedgerStore
class AgentRunJournal:
"""Persist run events, transcript records, and state updates."""
ap: app.Application
_persistent_state_store: PersistentStateStore | None
_run_ledger_store: RunLedgerStore | None
def __init__(self, ap: app.Application):
self.ap = ap
self._persistent_state_store = None
self._run_ledger_store = None
def _get_run_ledger_store(self) -> RunLedgerStore:
if self._run_ledger_store is None:
self._run_ledger_store = RunLedgerStore(self.ap.persistence_mgr.get_db_engine())
return self._run_ledger_store
@staticmethod
def _to_plain_dict(value: typing.Any) -> dict[str, typing.Any]:
if hasattr(value, 'model_dump'):
value = value.model_dump(mode='json')
if isinstance(value, dict):
return dict(value)
return {}
@classmethod
def _sanitize_content_item(cls, value: typing.Any) -> typing.Any:
item = cls._to_plain_dict(value)
if not item:
return value
item_type = item.get('type')
if item_type == 'image_base64' and item.get('image_base64'):
item['image_base64'] = None
item['content_redacted'] = True
elif item_type == 'file_base64' and item.get('file_base64'):
item['file_base64'] = None
item['content_redacted'] = True
return item
@classmethod
def _sanitize_attachment_ref(cls, value: typing.Any) -> dict[str, typing.Any]:
item = cls._to_plain_dict(value)
if item.get('content'):
item['content'] = None
item['content_redacted'] = True
return item
@classmethod
def _sanitize_contents(cls, contents: typing.Iterable[typing.Any]) -> list[typing.Any]:
return [cls._sanitize_content_item(content) for content in contents]
@classmethod
def _sanitize_attachments(cls, attachments: typing.Iterable[typing.Any]) -> list[dict[str, typing.Any]]:
return [cls._sanitize_attachment_ref(attachment) for attachment in attachments]
async def create_run(
self,
*,
event: AgentEventEnvelope,
binding: AgentBinding,
descriptor: AgentRunnerDescriptor,
context: dict[str, typing.Any],
authorization: dict[str, typing.Any],
) -> dict[str, typing.Any]:
"""Create the Host-owned run ledger record."""
runtime = context.get('runtime') if isinstance(context, dict) else {}
return await self._get_run_ledger_store().create_run(
run_id=context['run_id'],
event_id=event.event_id,
binding_id=binding.binding_id,
runner_id=descriptor.id,
conversation_id=event.conversation_id,
thread_id=event.thread_id,
workspace_id=event.workspace_id,
bot_id=event.bot_id,
deadline_at=runtime.get('deadline_at') if isinstance(runtime, dict) else None,
authorization=authorization,
metadata={
'event_type': event.event_type,
'source': event.source,
},
)
async def append_run_result(
self,
*,
result_dict: dict[str, typing.Any],
run_id: str,
sequence: int,
source: str = 'runner',
metadata: dict[str, typing.Any] | None = None,
) -> dict[str, typing.Any]:
"""Persist one AgentRunResult in the run ledger."""
usage = result_dict.get('usage')
if hasattr(usage, 'model_dump'):
usage = usage.model_dump(mode='json')
return await self._get_run_ledger_store().append_event(
run_id=run_id,
sequence=sequence,
event_type=str(result_dict.get('type') or 'unknown'),
data=result_dict.get('data') if isinstance(result_dict.get('data'), dict) else {},
usage=usage if isinstance(usage, dict) else None,
source=source,
metadata=metadata,
)
async def finalize_run(
self,
*,
run_id: str,
status: str,
status_reason: str | None = None,
usage: dict[str, typing.Any] | None = None,
metadata: dict[str, typing.Any] | None = None,
) -> dict[str, typing.Any] | None:
"""Finalize or update the Host-owned run ledger record."""
return await self._get_run_ledger_store().finalize_run(
run_id=run_id,
status=status,
status_reason=status_reason,
usage=usage,
metadata=metadata,
)
async def get_run(self, run_id: str) -> dict[str, typing.Any] | None:
"""Return the persisted run ledger record."""
return await self._get_run_ledger_store().get_run(run_id)
async def handle_state_updated_event(
self,
result_dict: dict[str, typing.Any],
event: AgentEventEnvelope,
binding: AgentBinding,
descriptor: AgentRunnerDescriptor,
run_id: str | None = None,
) -> None:
"""Handle state.updated result in event-first mode."""
data = result_dict.get('data', {})
result_run_id = result_dict.get('run_id')
if run_id and result_run_id and result_run_id != run_id:
raise RunnerProtocolError(
descriptor.id,
f'state.updated run_id mismatch: expected {run_id}, got {result_run_id}',
)
scope = data.get('scope')
if not scope:
raise RunnerProtocolError(
descriptor.id,
'state.updated missing required field: scope',
)
key = data.get('key')
value = data.get('value')
if not key:
raise RunnerProtocolError(
descriptor.id,
'state.updated missing required field: key',
)
if self._persistent_state_store is None:
self._persistent_state_store = get_persistent_state_store(self.ap.persistence_mgr.get_db_engine())
success, error = await self._persistent_state_store.apply_update_from_event(
event=event,
binding=binding,
descriptor=descriptor,
scope=scope,
key=key,
value=value,
logger=self.ap.logger,
)
if success:
self.ap.logger.debug(f'Runner {descriptor.id} state.updated (event mode): scope={scope}, key={key}')
elif error:
self.ap.logger.warning(f'Runner {descriptor.id} state.updated rejected: {error}')
async def write_event_log(
self,
event: AgentEventEnvelope,
binding: AgentBinding,
run_id: str,
runner_id: str,
metadata: dict[str, typing.Any] | None = None,
) -> str:
"""Write incoming event to EventLog."""
import datetime
from .event_log_store import EventLogStore
store = EventLogStore(self.ap.persistence_mgr.get_db_engine())
input_summary = None
input_json = None
if event.input:
if event.input.text:
input_summary = event.input.text[:1000]
input_json = {
'text': event.input.text,
'contents': self._sanitize_contents(event.input.contents),
'attachments': self._sanitize_attachments(event.input.attachments),
}
return await store.append_event(
event_id=event.event_id,
event_type=event.event_type,
source=event.source,
bot_id=event.bot_id,
workspace_id=event.workspace_id,
conversation_id=event.conversation_id,
thread_id=event.thread_id,
actor_type=event.actor.actor_type if event.actor else None,
actor_id=event.actor.actor_id if event.actor else None,
actor_name=event.actor.actor_name if event.actor else None,
subject_type=event.subject.subject_type if event.subject else None,
subject_id=event.subject.subject_id if event.subject else None,
input_summary=input_summary,
input_json=input_json,
run_id=run_id,
runner_id=runner_id,
event_time=(
datetime.datetime.fromtimestamp(event.event_time, datetime.timezone.utc) if event.event_time else None
),
metadata=metadata,
)
async def write_user_transcript(
self,
event: AgentEventEnvelope,
event_log_id: str,
) -> None:
"""Write user message to Transcript."""
from .transcript_store import TranscriptStore
store = TranscriptStore(self.ap.persistence_mgr.get_db_engine())
content = event.input.text if event.input else None
content_json = None
if event.input:
content_json = {
'role': 'user',
'content': self._sanitize_contents(event.input.contents) if event.input.contents else [],
}
attachment_refs = []
if event.input and event.input.attachments:
for a in event.input.attachments:
attachment_refs.append(self._sanitize_attachment_ref(a))
await store.append_transcript(
transcript_id=None,
event_id=event_log_id,
conversation_id=event.conversation_id,
role='user',
bot_id=event.bot_id,
workspace_id=event.workspace_id,
content=content,
content_json=content_json,
attachment_refs=attachment_refs if attachment_refs else None,
thread_id=event.thread_id,
item_type='message',
metadata={
'actor_type': event.actor.actor_type if event.actor else None,
'actor_id': event.actor.actor_id if event.actor else None,
},
)
async def write_steering_dropped_audits(
self,
items: list[dict[str, typing.Any]],
run_id: str,
runner_id: str,
*,
reason: str = 'run_ended',
) -> None:
"""Write terminal audit events for steering items left unconsumed."""
if not items:
return
import datetime
import uuid
from .event_log_store import EventLogStore
store = EventLogStore(self.ap.persistence_mgr.get_db_engine())
for item in items:
event = item.get('event') if isinstance(item.get('event'), dict) else {}
input_data = item.get('input') if isinstance(item.get('input'), dict) else {}
conversation = item.get('conversation') if isinstance(item.get('conversation'), dict) else {}
actor = item.get('actor') if isinstance(item.get('actor'), dict) else {}
subject = item.get('subject') if isinstance(item.get('subject'), dict) else {}
text = input_data.get('text')
input_summary = text[:1000] if isinstance(text, str) and text else 'Unconsumed steering input dropped'
event_time = None
raw_event_time = event.get('event_time')
if raw_event_time:
try:
event_time = datetime.datetime.fromtimestamp(
raw_event_time,
datetime.timezone.utc,
)
except (TypeError, ValueError, OSError):
event_time = None
await store.append_event(
event_id=str(uuid.uuid4()),
event_type='steering.dropped',
source='host',
bot_id=conversation.get('bot_id'),
workspace_id=conversation.get('workspace_id'),
conversation_id=conversation.get('conversation_id'),
thread_id=conversation.get('thread_id'),
actor_type=actor.get('actor_type'),
actor_id=actor.get('actor_id'),
actor_name=actor.get('actor_name'),
subject_type=subject.get('subject_type'),
subject_id=subject.get('subject_id'),
input_summary=input_summary,
input_json={
'text': text,
'contents': self._sanitize_contents(input_data.get('contents') or []),
'attachments': self._sanitize_attachments(input_data.get('attachments') or []),
},
run_id=run_id,
runner_id=runner_id,
event_time=event_time,
metadata={
'steering': {
'status': 'dropped',
'reason': reason,
'original_event_id': event.get('event_id'),
'claimed_run_id': item.get('claimed_run_id'),
'claimed_runner_id': item.get('runner_id'),
'claimed_at': item.get('claimed_at'),
},
},
)
async def write_assistant_transcript(
self,
result_dict: dict[str, typing.Any],
event: AgentEventEnvelope,
run_id: str,
runner_id: str,
) -> None:
"""Write assistant message to Transcript."""
import uuid
from .transcript_store import TranscriptStore
store = TranscriptStore(self.ap.persistence_mgr.get_db_engine())
data = result_dict.get('data', {})
message = data.get('message', {})
content = None
content_json = None
if isinstance(message.get('content'), str):
content = message['content']
content_json = message
elif isinstance(message.get('content'), list):
text_parts = []
for c in message['content']:
if isinstance(c, dict) and c.get('type') == 'text':
text_parts.append(c.get('text', ''))
content = ' '.join(text_parts) if text_parts else None
content_json = {
**message,
'content': self._sanitize_contents(message['content']),
}
assistant_event_id = str(uuid.uuid4())
await store.append_transcript(
transcript_id=str(uuid.uuid4()),
event_id=assistant_event_id,
conversation_id=event.conversation_id,
role='assistant',
bot_id=event.bot_id,
workspace_id=event.workspace_id,
content=content,
content_json=content_json,
thread_id=event.thread_id,
item_type='message',
run_id=run_id,
runner_id=runner_id,
metadata={
'run_id': run_id,
'runner_id': runner_id,
},
)
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@@ -0,0 +1,424 @@
"""Agent run session registry for proxy action permission validation."""
from __future__ import annotations
import asyncio
import copy
import typing
import time
import threading
from .context_builder import AgentResources
MAX_STEERING_QUEUE_ITEMS = 100
DEFAULT_RESOURCE_OPERATIONS: dict[str, set[str]] = {
'model': {'invoke', 'stream', 'rerank'},
'tool': {'detail', 'call'},
'knowledge_base': {'list', 'retrieve'},
'skill': {'activate'},
}
class AgentRunSessionStatus(typing.TypedDict):
"""Status tracking for agent run session."""
started_at: int
last_activity_at: int
class RunAuthorizationSnapshot(typing.TypedDict):
"""Frozen authorization data for one active run.
ResourceBuilder creates the authorized resource list once before runner
execution. Runtime proxy handlers must validate against this run-scoped
snapshot instead of recomputing resource policy.
"""
resources: AgentResources
available_apis: dict[str, bool]
conversation_id: str | None
bot_id: str | None
workspace_id: str | None
thread_id: str | None
state_policy: dict[str, typing.Any]
state_context: dict[str, typing.Any]
authorized_ids: dict[str, set[str]]
authorized_operations: dict[str, dict[str, set[str]]]
SteeringQueueItem = dict[str, typing.Any]
class AgentRunSession(typing.TypedDict):
"""Session for an active agent runner execution.
Stored in AgentRunSessionRegistry for proxy action permission validation.
Fields:
run_id: Unique run identifier (UUID from AgentRunContext)
runner_id: Runner descriptor ID (plugin:author/name/runner)
query_id: Host entry query ID, only present for query-based adapters
plugin_identity: Plugin identifier (author/name) of the runner
authorization: Run-scoped authorization snapshot; runtime auth truth
status: Session status tracking
"""
run_id: str
runner_id: str
query_id: int | None
plugin_identity: str # author/name
authorization: RunAuthorizationSnapshot
status: AgentRunSessionStatus
steering_queue: list[SteeringQueueItem]
class AgentRunSessionRegistry:
"""Registry for active agent run sessions.
Host-owned registry for tracking active AgentRunner executions.
Used by proxy actions in handler.py to validate resource access.
Key: run_id (UUID from AgentRunContext)
Value: AgentRunSession with authorized resources
Thread-safe via asyncio.Lock.
"""
_sessions: dict[str, AgentRunSession]
_lock: asyncio.Lock
def __init__(self):
self._sessions = {}
self._lock = asyncio.Lock()
async def register(
self,
run_id: str,
runner_id: str,
query_id: int | None,
plugin_identity: str,
resources: AgentResources,
conversation_id: str | None = None,
bot_id: str | None = None,
workspace_id: str | None = None,
thread_id: str | None = None,
available_apis: dict[str, bool] | None = None,
state_policy: dict[str, typing.Any] | None = None,
state_context: dict[str, typing.Any] | None = None,
) -> None:
"""Register a new agent run session.
Args:
run_id: Unique run identifier
runner_id: Runner descriptor ID
query_id: Host entry query ID, only present for query-based adapters
plugin_identity: Plugin identifier (author/name)
resources: Authorized resources for this run
conversation_id: Conversation ID for history/event access
bot_id: Bot UUID for history/event access
workspace_id: Workspace ID for history/event access
thread_id: Thread ID for history/event access
available_apis: Run-scoped pull APIs exposed in AgentRunContext
state_policy: State policy from binding (enable_state, state_scopes)
state_context: Context for state API (scope_keys, binding_identity, etc.)
"""
if not isinstance(plugin_identity, str) or not plugin_identity.strip():
raise ValueError('plugin_identity is required for agent run sessions')
now = int(time.time())
available_apis = copy.deepcopy(available_apis or {})
# Normalize state_policy to defaults if None
if state_policy is None:
state_policy = {'enable_state': True, 'state_scopes': ['conversation', 'actor']}
# Normalize state_context to empty dict if None
state_context = state_context or {}
resources_snapshot = copy.deepcopy(resources)
authorization: RunAuthorizationSnapshot = {
'resources': resources_snapshot,
'available_apis': available_apis,
'conversation_id': conversation_id,
'bot_id': bot_id,
'workspace_id': workspace_id,
'thread_id': thread_id,
'state_policy': copy.deepcopy(state_policy),
'state_context': copy.deepcopy(state_context),
'authorized_ids': self._build_authorized_ids(resources_snapshot),
'authorized_operations': self._build_authorized_operations(resources_snapshot),
}
session: AgentRunSession = {
'run_id': run_id,
'runner_id': runner_id,
'query_id': query_id,
'plugin_identity': plugin_identity,
'authorization': authorization,
'status': {
'started_at': now,
'last_activity_at': now,
},
'steering_queue': [],
}
async with self._lock:
self._sessions[run_id] = session
def _build_authorized_ids(self, resources: AgentResources) -> dict[str, set[str]]:
"""Pre-compute authorized resource IDs for O(1) lookup."""
return {
'model': {m.get('model_id') for m in resources.get('models', [])},
'tool': {t.get('tool_name') for t in resources.get('tools', [])},
'knowledge_base': {kb.get('kb_id') for kb in resources.get('knowledge_bases', [])},
'skill': {s.get('skill_name') for s in resources.get('skills', [])},
}
def _build_authorized_operations(
self,
resources: AgentResources,
) -> dict[str, dict[str, set[str]]]:
"""Pre-compute resource operations for runtime action validation."""
return {
'model': {
m.get('model_id'): self._resource_operations('model', m)
for m in resources.get('models', [])
if m.get('model_id')
},
'tool': {
t.get('tool_name'): self._resource_operations('tool', t)
for t in resources.get('tools', [])
if t.get('tool_name')
},
'knowledge_base': {
kb.get('kb_id'): self._resource_operations('knowledge_base', kb)
for kb in resources.get('knowledge_bases', [])
if kb.get('kb_id')
},
'skill': {
s.get('skill_name'): self._resource_operations('skill', s)
for s in resources.get('skills', [])
if s.get('skill_name')
},
}
@staticmethod
def _resource_operations(resource_type: str, resource: dict[str, typing.Any]) -> set[str]:
"""Return explicit operations or the compatibility default for old resources."""
operations = resource.get('operations')
if isinstance(operations, list) and operations:
return {str(operation) for operation in operations}
return set(DEFAULT_RESOURCE_OPERATIONS.get(resource_type, set()))
async def unregister(self, run_id: str) -> AgentRunSession | None:
"""Unregister an agent run session.
Args:
run_id: Unique run identifier
Returns:
The removed session, if one existed. Callers can inspect any
pending in-memory queues before they are discarded.
"""
async with self._lock:
return self._sessions.pop(run_id, None)
async def get(self, run_id: str) -> AgentRunSession | None:
"""Get session by run_id.
Args:
run_id: Unique run identifier
Returns:
AgentRunSession if found, None otherwise
"""
async with self._lock:
return self._sessions.get(run_id)
async def update_activity(self, run_id: str) -> None:
"""Update last activity timestamp for session.
Args:
run_id: Unique run identifier
"""
async with self._lock:
if run_id in self._sessions:
self._sessions[run_id]['status']['last_activity_at'] = int(time.time())
async def find_steering_target(
self,
*,
conversation_id: str,
runner_id: str,
bot_id: str | None = None,
workspace_id: str | None = None,
thread_id: str | None = None,
) -> str | None:
"""Find the oldest active run that can accept steering for a conversation."""
async with self._lock:
candidates: list[tuple[int, str]] = []
for run_id, session in self._sessions.items():
authorization = session['authorization']
if session.get('runner_id') != runner_id:
continue
if authorization.get('conversation_id') != conversation_id:
continue
if authorization.get('bot_id') != bot_id:
continue
if authorization.get('workspace_id') != workspace_id:
continue
if authorization.get('thread_id') != thread_id:
continue
if not authorization.get('available_apis', {}).get('steering_pull', False):
continue
candidates.append((session['status'].get('started_at', 0), run_id))
if not candidates:
return None
candidates.sort(key=lambda item: item[0])
return candidates[0][1]
async def enqueue_steering(
self,
run_id: str,
item: SteeringQueueItem,
) -> bool:
"""Append one steering item to an active run queue."""
async with self._lock:
session = self._sessions.get(run_id)
if session is None:
return False
if len(session['steering_queue']) >= MAX_STEERING_QUEUE_ITEMS:
return False
session['steering_queue'].append(copy.deepcopy(item))
session['status']['last_activity_at'] = int(time.time())
return True
async def pull_steering(
self,
run_id: str,
*,
mode: str = 'all',
limit: int | None = None,
) -> list[SteeringQueueItem]:
"""Pop pending steering items from a run queue."""
async with self._lock:
session = self._sessions.get(run_id)
if session is None:
return []
queue = session['steering_queue']
if not queue:
return []
normalized_mode = str(mode or 'all').lower()
if normalized_mode in {'one', 'one-at-a-time', 'one_at_a_time'}:
count = 1
elif isinstance(limit, int) and limit > 0:
count = min(limit, len(queue))
else:
count = len(queue)
count = max(0, min(count, len(queue), 100))
items = [copy.deepcopy(item) for item in queue[:count]]
del queue[:count]
session['status']['last_activity_at'] = int(time.time())
return items
def is_resource_allowed(
self,
session: AgentRunSession,
resource_type: str,
resource_id: str,
operation: str | None = None,
) -> bool:
"""Check if resource access is allowed for this session.
Uses pre-computed authorized IDs for O(1) lookup.
Args:
session: AgentRunSession to check
resource_type: Resource type ('model', 'tool', 'knowledge_base', 'storage')
resource_id: Resource identifier (model_id, tool_name, kb_id, 'plugin'/'workspace')
operation: Optional operation to check within the authorized resource
Returns:
True if resource is authorized, False otherwise
"""
authorization = session['authorization']
authorized_ids = authorization['authorized_ids']
resources = authorization['resources']
if resource_type in ('model', 'tool', 'knowledge_base', 'skill'):
if resource_id not in authorized_ids.get(resource_type, set()):
return False
if operation is None:
return True
operation_map = authorization.get('authorized_operations', {})
operations = operation_map.get(resource_type, {}).get(resource_id)
if not operations:
operations = DEFAULT_RESOURCE_OPERATIONS.get(resource_type, set())
return operation in operations
if resource_type == 'storage':
storage = resources.get('storage', {})
if resource_id == 'plugin':
return storage.get('plugin_storage', False)
elif resource_id == 'workspace':
return storage.get('workspace_storage', False)
return False
return False
async def list_active_runs(self) -> list[AgentRunSession]:
"""List all active run sessions.
Returns:
List of active AgentRunSession dicts
"""
async with self._lock:
return list(self._sessions.values())
async def cleanup_stale_sessions(self, max_age_seconds: int = 3600) -> int:
"""Cleanup sessions that have been inactive for too long.
Args:
max_age_seconds: Maximum inactivity time in seconds (default 1 hour)
Returns:
Number of sessions cleaned up
"""
now = int(time.time())
cleaned = 0
async with self._lock:
stale_run_ids = []
for run_id, session in self._sessions.items():
last_activity = session['status'].get('last_activity_at', 0)
if now - last_activity > max_age_seconds:
stale_run_ids.append(run_id)
for run_id in stale_run_ids:
del self._sessions[run_id]
cleaned += 1
return cleaned
# Global registry instance (singleton)
_global_registry: AgentRunSessionRegistry | None = None
_global_registry_lock = threading.Lock()
def get_session_registry() -> AgentRunSessionRegistry:
"""Get global session registry instance (thread-safe singleton).
Returns:
AgentRunSessionRegistry singleton
"""
global _global_registry
with _global_registry_lock:
if _global_registry is None:
_global_registry = AgentRunSessionRegistry()
return _global_registry
+136
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"""State scope key helpers for AgentRunner host-owned state."""
from __future__ import annotations
import hashlib
import json
import typing
from .descriptor import AgentRunnerDescriptor
from .host_models import AgentBinding, AgentEventEnvelope
VALID_STATE_SCOPES = ('conversation', 'actor', 'subject', 'runner')
STATE_KEY_ALIASES = {
'conversation_id': 'external.conversation_id',
}
def normalize_state_key(key: str) -> str:
"""Map accepted public aliases to protocol state keys."""
return STATE_KEY_ALIASES.get(key, key)
def get_binding_identity(binding: AgentBinding) -> str:
"""Return the stable binding identity used for state isolation."""
if binding.binding_id:
return binding.binding_id
scope = binding.scope
if scope.scope_type and scope.scope_id:
return f'{scope.scope_type}:{scope.scope_id}'
return 'unknown_binding'
def _scope_hash(scope: str, parts: dict[str, typing.Any]) -> str:
"""Encode state scope dimensions without separator ambiguity."""
payload = {
'version': 2,
'scope': scope,
**parts,
}
raw = json.dumps(payload, sort_keys=True, separators=(',', ':'), ensure_ascii=False)
return f'{scope}:v2:{hashlib.sha256(raw.encode("utf-8")).hexdigest()}'
def _base_scope_parts(
event: AgentEventEnvelope,
binding: AgentBinding,
descriptor: AgentRunnerDescriptor,
) -> dict[str, typing.Any]:
return {
'runner_id': descriptor.id,
'binding_identity': get_binding_identity(binding),
'bot_id': event.bot_id,
'workspace_id': event.workspace_id,
}
def build_state_scope_key(
scope: str,
event: AgentEventEnvelope,
binding: AgentBinding,
descriptor: AgentRunnerDescriptor,
) -> str | None:
"""Build the storage key for one state scope.
Returns None when the event lacks the identity required by that scope.
"""
base_parts = _base_scope_parts(event, binding, descriptor)
if scope == 'conversation':
if not event.conversation_id:
return None
return _scope_hash(scope, {
**base_parts,
'conversation_id': event.conversation_id,
'thread_id': event.thread_id,
})
if scope == 'actor':
if not event.actor or not event.actor.actor_id:
return None
return _scope_hash(scope, {
**base_parts,
'actor_type': event.actor.actor_type or 'user',
'actor_id': event.actor.actor_id,
})
if scope == 'subject':
if not event.subject or not event.subject.subject_id:
return None
return _scope_hash(scope, {
**base_parts,
'subject_type': event.subject.subject_type or 'unknown',
'subject_id': event.subject.subject_id,
})
if scope == 'runner':
return _scope_hash(scope, base_parts)
return None
def build_state_scope_keys(
event: AgentEventEnvelope,
binding: AgentBinding,
descriptor: AgentRunnerDescriptor,
) -> dict[str, str]:
"""Build all available scope keys for an event/binding pair."""
scope_keys: dict[str, str] = {}
for scope in VALID_STATE_SCOPES:
scope_key = build_state_scope_key(scope, event, binding, descriptor)
if scope_key:
scope_keys[scope] = scope_key
return scope_keys
def build_state_context(
event: AgentEventEnvelope,
binding: AgentBinding,
descriptor: AgentRunnerDescriptor,
) -> dict[str, typing.Any]:
"""Build the State API context stored in the run session."""
return {
'scope_keys': build_state_scope_keys(event, binding, descriptor),
'binding_identity': get_binding_identity(binding),
'bot_id': event.bot_id,
'workspace_id': event.workspace_id,
'conversation_id': event.conversation_id,
'thread_id': event.thread_id,
'actor_type': event.actor.actor_type if event.actor else None,
'actor_id': event.actor.actor_id if event.actor else None,
'subject_type': event.subject.subject_type if event.subject else None,
'subject_id': event.subject.subject_id if event.subject else None,
}
@@ -0,0 +1,426 @@
"""Transcript store for writing and querying conversation history."""
from __future__ import annotations
import json
import datetime
import typing
import uuid
import sqlalchemy
from sqlalchemy.ext.asyncio import AsyncEngine, AsyncSession
from sqlalchemy.orm import sessionmaker
from ...entity.persistence.transcript import Transcript
from langbot_plugin.api.entities.builtin.provider import message as provider_message
UTC = datetime.timezone.utc
def _utc_now() -> datetime.datetime:
return datetime.datetime.now(UTC)
def _datetime_to_epoch(value: datetime.datetime | None) -> int | None:
if value is None:
return None
if value.tzinfo is None:
value = value.replace(tzinfo=UTC)
else:
value = value.astimezone(UTC)
return int(value.timestamp())
class TranscriptStore:
"""Store for Transcript records.
Handles writing transcript items and querying them for history API.
All methods are async and use the provided database engine.
"""
engine: AsyncEngine
# Hard limits
MAX_CONTENT_LENGTH = 4000
HARD_LIMIT = 100
def __init__(self, engine: AsyncEngine):
self.engine = engine
self._session_factory = sessionmaker(
engine, class_=AsyncSession, expire_on_commit=False
)
async def append_transcript(
self,
transcript_id: str | None,
event_id: str,
conversation_id: str,
role: str,
bot_id: str | None = None,
workspace_id: str | None = None,
content: str | None = None,
content_json: dict[str, typing.Any] | None = None,
attachment_refs: list[dict[str, typing.Any]] | None = None,
thread_id: str | None = None,
item_type: str = "message",
run_id: str | None = None,
runner_id: str | None = None,
metadata: dict[str, typing.Any] | None = None,
) -> str:
"""Append a transcript item.
Args:
transcript_id: Unique transcript ID (generated if None)
event_id: Source event ID
conversation_id: Conversation ID
role: Message role (user, assistant, system, tool)
bot_id: Bot UUID scope
workspace_id: Workspace scope
content: Text content
content_json: Full structured content
attachment_refs: Attachment references
thread_id: Thread ID
item_type: Item type
run_id: Run ID that generated this
runner_id: Runner ID that generated this
metadata: Additional metadata
Returns:
The transcript_id
"""
if transcript_id is None:
transcript_id = str(uuid.uuid4())
# Truncate content if too long
if content and len(content) > self.MAX_CONTENT_LENGTH:
content = content[:self.MAX_CONTENT_LENGTH - 3] + "..."
async with self._session_factory() as session:
item = Transcript(
transcript_id=transcript_id,
event_id=event_id,
bot_id=bot_id,
workspace_id=workspace_id,
conversation_id=conversation_id,
thread_id=thread_id,
role=role,
item_type=item_type,
content=content,
content_json=json.dumps(content_json) if content_json else None,
attachment_refs_json=json.dumps(attachment_refs) if attachment_refs else None,
seq=0,
run_id=run_id,
runner_id=runner_id,
created_at=_utc_now(),
metadata_json=json.dumps(metadata) if metadata else None,
)
session.add(item)
await session.flush()
item.seq = item.id or await self._get_next_seq(conversation_id)
await session.commit()
return transcript_id
async def page_transcript(
self,
conversation_id: str,
before_seq: int | None = None,
after_seq: int | None = None,
limit: int = 50,
direction: str = "backward",
include_attachments: bool = False,
bot_id: str | None = None,
workspace_id: str | None = None,
thread_id: str | None = None,
strict_thread: bool = False,
) -> tuple[list[dict[str, typing.Any]], int | None, int | None, bool]:
"""Page through transcript items.
Args:
conversation_id: Conversation ID
before_seq: Get items before this sequence (backward)
after_seq: Get items after this sequence (forward)
limit: Maximum items to return (capped at 100)
direction: 'backward' (older) or 'forward' (newer)
include_attachments: Include attachment refs
bot_id: Optional bot scope filter
workspace_id: Optional workspace scope filter
thread_id: Optional thread scope filter
strict_thread: When true, require thread_id equality including NULL
Returns:
Tuple of (items, next_seq, prev_seq, has_more)
"""
limit = min(limit, self.HARD_LIMIT)
async with self._session_factory() as session:
query = sqlalchemy.select(Transcript).where(
Transcript.conversation_id == conversation_id
)
query = self._apply_scope_filters(query, bot_id, workspace_id, thread_id, strict_thread)
if direction == "backward" and before_seq is not None:
query = query.where(Transcript.seq < before_seq)
query = query.order_by(Transcript.seq.desc())
elif direction == "forward" and after_seq is not None:
query = query.where(Transcript.seq > after_seq)
query = query.order_by(Transcript.seq.asc())
else:
# Default: most recent items first (backward from latest)
query = query.order_by(Transcript.seq.desc())
query = query.limit(limit + 1)
result = await session.execute(query)
rows = result.scalars().all()
items = [self._row_to_dict(row, include_attachments) for row in rows[:limit]]
has_more = len(rows) > limit
# Calculate cursors
next_seq = None
prev_seq = None
if direction == "backward":
# Items are in descending order
if items:
next_seq = items[-1].get('seq') if has_more else None
prev_seq = items[0].get('seq')
else:
# Items are in ascending order
if items:
next_seq = items[-1].get('seq') if has_more else None
prev_seq = items[0].get('seq')
return items, next_seq, prev_seq, has_more
async def search_transcript(
self,
conversation_id: str,
query_text: str,
filters: dict[str, typing.Any] | None = None,
top_k: int = 10,
bot_id: str | None = None,
workspace_id: str | None = None,
thread_id: str | None = None,
strict_thread: bool = False,
) -> list[dict[str, typing.Any]]:
"""Search transcript items.
Basic implementation using LIKE filtering.
Args:
conversation_id: Conversation ID
query_text: Search query
filters: Optional filters
top_k: Maximum results
bot_id: Optional bot scope filter
workspace_id: Optional workspace scope filter
thread_id: Optional thread scope filter
strict_thread: When true, require thread_id equality including NULL
Returns:
List of matching items
"""
async with self._session_factory() as session:
query = sqlalchemy.select(Transcript).where(
Transcript.conversation_id == conversation_id,
Transcript.content.ilike(f"%{query_text}%"),
)
query = self._apply_scope_filters(query, bot_id, workspace_id, thread_id, strict_thread)
# Apply additional filters
if filters:
if 'roles' in filters:
query = query.where(Transcript.role.in_(filters['roles']))
if 'item_types' in filters:
query = query.where(Transcript.item_type.in_(filters['item_types']))
query = query.order_by(Transcript.seq.desc()).limit(top_k)
result = await session.execute(query)
rows = result.scalars().all()
return [self._row_to_dict(row, include_attachments=True) for row in rows]
async def get_latest_cursor(
self,
conversation_id: str,
) -> str | None:
"""Get the latest cursor for a conversation.
Args:
conversation_id: Conversation ID
Returns:
Cursor string (seq number), or None if no items
"""
async with self._session_factory() as session:
result = await session.execute(
sqlalchemy.select(Transcript.seq)
.where(Transcript.conversation_id == conversation_id)
.order_by(Transcript.seq.desc())
.limit(1)
)
row = result.scalars().first()
if row is None:
return None
return str(row)
async def get_legacy_provider_messages(
self,
conversation_id: str,
limit: int = HARD_LIMIT,
bot_id: str | None = None,
workspace_id: str | None = None,
thread_id: str | None = None,
strict_thread: bool = False,
) -> list[provider_message.Message]:
"""Project Transcript rows into the legacy provider Message view.
AgentRunner history is canonical in Transcript. This view exists for
legacy Pipeline readers such as PromptPreProcessing that still expect
query.messages.
"""
items, _, _, _ = await self.page_transcript(
conversation_id=conversation_id,
limit=limit,
direction="backward",
bot_id=bot_id,
workspace_id=workspace_id,
thread_id=thread_id,
strict_thread=strict_thread,
)
messages: list[provider_message.Message] = []
for item in reversed(items):
message = self._transcript_item_to_provider_message(item)
if message is not None:
messages.append(message)
return messages
async def has_history_before(
self,
conversation_id: str,
seq: int,
bot_id: str | None = None,
workspace_id: str | None = None,
thread_id: str | None = None,
strict_thread: bool = False,
) -> bool:
"""Check if there is history before a sequence number.
Args:
conversation_id: Conversation ID
seq: Sequence number
Returns:
True if there are items before
"""
async with self._session_factory() as session:
query = (
sqlalchemy.select(sqlalchemy.func.count())
.select_from(Transcript)
.where(Transcript.conversation_id == conversation_id, Transcript.seq < seq)
)
query = self._apply_scope_filters(query, bot_id, workspace_id, thread_id, strict_thread)
result = await session.execute(query)
count = result.scalar()
return count > 0
def _apply_scope_filters(
self,
query: typing.Any,
bot_id: str | None,
workspace_id: str | None,
thread_id: str | None,
strict_thread: bool,
) -> typing.Any:
if bot_id is not None:
query = query.where(Transcript.bot_id == bot_id)
if workspace_id is not None:
query = query.where(Transcript.workspace_id == workspace_id)
if strict_thread:
if thread_id is None:
query = query.where(Transcript.thread_id.is_(None))
else:
query = query.where(Transcript.thread_id == thread_id)
return query
async def cleanup_transcripts_older_than(
self,
before: datetime.datetime,
) -> int:
"""Delete Transcript rows created before the supplied timestamp."""
async with self._session_factory() as session:
result = await session.execute(
sqlalchemy.delete(Transcript).where(Transcript.created_at < before)
)
await session.commit()
return result.rowcount or 0
async def _get_next_seq(self, conversation_id: str) -> int:
"""Fallback next sequence number for stores that cannot expose autoincrement IDs."""
async with self._session_factory() as session:
result = await session.execute(
sqlalchemy.select(sqlalchemy.func.max(Transcript.seq))
.where(Transcript.conversation_id == conversation_id)
)
max_seq = result.scalar()
return (max_seq or 0) + 1
def _row_to_dict(
self,
row: Transcript,
include_attachments: bool = False,
) -> dict[str, typing.Any]:
"""Convert a Transcript row to dict."""
result = {
'transcript_id': row.transcript_id,
'event_id': row.event_id,
'bot_id': row.bot_id,
'workspace_id': row.workspace_id,
'conversation_id': row.conversation_id,
'thread_id': row.thread_id,
'role': row.role,
'item_type': row.item_type,
'content': row.content,
'content_json': json.loads(row.content_json) if row.content_json else None,
'seq': row.seq,
'cursor': str(row.seq),
'created_at': _datetime_to_epoch(row.created_at),
'metadata': json.loads(row.metadata_json) if row.metadata_json else {},
}
if include_attachments and row.attachment_refs_json:
result['attachment_refs'] = json.loads(row.attachment_refs_json)
else:
result['attachment_refs'] = []
return result
def _transcript_item_to_provider_message(
self,
item: dict[str, typing.Any],
) -> provider_message.Message | None:
"""Convert one Transcript API item into a provider Message."""
if item.get('item_type') != 'message':
return None
role = item.get('role')
if role not in {'user', 'assistant'}:
return None
content_json = item.get('content_json')
if isinstance(content_json, dict):
message_data = dict(content_json)
message_data['role'] = role
try:
return provider_message.Message.model_validate(message_data)
except Exception:
pass
content = item.get('content')
if content is None:
return None
return provider_message.Message(role=role, content=content)
+5 -20
View File
@@ -141,25 +141,15 @@ class MCPService:
runtime_mcp_session: RuntimeMCPSession | None = None
ctx = taskmgr.TaskContext.new()
if server_name != '_':
runtime_mcp_session = self.ap.tool_mgr.mcp_tool_loader.get_session(server_name)
if runtime_mcp_session is None:
raise ValueError(f'Server not found: {server_name}')
persisted_session = runtime_mcp_session
async def _refresh_and_report() -> None:
if persisted_session.status == MCPSessionStatus.ERROR:
await persisted_session.start()
else:
await persisted_session.refresh()
# Surface the discovered tools so the config page can render them
# even for an already-hosted server.
ctx.metadata['runtime_info'] = persisted_session.get_runtime_info_dict()
coroutine = _refresh_and_report()
if runtime_mcp_session.status == MCPSessionStatus.ERROR:
coroutine = runtime_mcp_session.start()
else:
coroutine = runtime_mcp_session.refresh()
else:
runtime_mcp_session = await self.ap.tool_mgr.mcp_tool_loader.load_mcp_server(server_config=server_data)
@@ -170,12 +160,6 @@ class MCPService:
async def _run_and_cleanup() -> None:
try:
await test_session.start()
# Capture the runtime info (status + discovered tools) BEFORE
# shutting the transient session down. The create/edit config
# page has no persisted server to reload from, so without this
# a successful test could only show "no tools found". The
# frontend reads ctx.metadata.runtime_info to render the tools.
ctx.metadata['runtime_info'] = test_session.get_runtime_info_dict()
finally:
try:
await test_session.shutdown()
@@ -187,6 +171,7 @@ class MCPService:
coroutine = _run_and_cleanup()
ctx = taskmgr.TaskContext.new()
wrapper = self.ap.task_mgr.create_user_task(
coroutine,
kind='mcp-operation',
+3 -18
View File
@@ -7,7 +7,6 @@ from langbot_plugin.api.entities.builtin.provider import message as provider_mes
from ....core import app
from ....entity.persistence import model as persistence_model
from ....entity.persistence import pipeline as persistence_pipeline
from ....provider.modelmgr import requester as model_requester
@@ -151,23 +150,9 @@ class LLMModelsService:
self.ap.model_mgr.llm_models.append(runtime_llm_model)
if auto_set_to_default_pipeline:
# set the default pipeline model to this model
result = await self.ap.persistence_mgr.execute_async(
sqlalchemy.select(persistence_pipeline.LegacyPipeline).where(
persistence_pipeline.LegacyPipeline.is_default == True
)
)
pipeline = result.first()
if pipeline is not None:
model_config = pipeline.config.get('ai', {}).get('local-agent', {}).get('model', {})
if not model_config.get('primary', ''):
pipeline_config = pipeline.config
pipeline_config['ai']['local-agent']['model'] = {
'primary': model_data['uuid'],
'fallbacks': [],
}
pipeline_data = {'config': pipeline_config}
await self.ap.pipeline_service.update_pipeline(pipeline.uuid, pipeline_data)
default_config_service = getattr(self.ap, 'agent_runner_default_config_service', None)
if default_config_service is not None:
await default_config_service.auto_set_default_pipeline_llm_model(model_data['uuid'])
return model_data['uuid']
+98 -7
View File
@@ -3,6 +3,7 @@ from __future__ import annotations
import uuid
import json
import sqlalchemy
import typing
from ....core import app
from ....entity.persistence import pipeline as persistence_pipeline
@@ -13,7 +14,6 @@ default_stage_order = [
'BanSessionCheckStage', # 封禁会话检查
'PreContentFilterStage', # 内容过滤前置阶段
'PreProcessor', # 预处理器
'ConversationMessageTruncator', # 会话消息截断器
'RequireRateLimitOccupancy', # 请求速率限制占用
'MessageProcessor', # 处理器
'ReleaseRateLimitOccupancy', # 释放速率限制占用
@@ -30,11 +30,100 @@ class PipelineService:
def __init__(self, ap: app.Application) -> None:
self.ap = ap
def _get_default_values_from_schema(self, config_schema: list[dict[str, typing.Any]]) -> dict[str, typing.Any]:
"""Build runner config defaults from a DynamicForm schema."""
defaults: dict[str, typing.Any] = {}
for item in config_schema:
name = item.get('name')
if not name:
continue
if 'default' in item:
defaults[name] = item['default']
return defaults
async def get_default_pipeline_config(self) -> dict[str, typing.Any]:
"""Get the default pipeline config, rendering runner defaults from installed plugins."""
from ....utils import paths as path_utils
template_path = path_utils.get_resource_path('templates/default-pipeline-config.json')
with open(template_path, 'r', encoding='utf-8') as f:
config = json.load(f)
agent_runner_registry = getattr(self.ap, 'agent_runner_registry', None)
if agent_runner_registry is None:
return config
try:
runners = await agent_runner_registry.list_runners(bound_plugins=None)
except Exception as e:
logger = getattr(self.ap, 'logger', None)
if logger:
logger.warning(f'Failed to load plugin agent runners for default pipeline config: {e}')
return config
if not runners:
return config
selected_runner = runners[0]
ai_config = config.setdefault('ai', {})
runner_config = ai_config.setdefault('runner', {})
runner_config['id'] = selected_runner.id
runner_config.setdefault('expire-time', 0)
ai_config['runner_config'] = {
selected_runner.id: self._get_default_values_from_schema(selected_runner.config_schema),
}
return config
async def get_pipeline_metadata(self) -> list[dict]:
"""Get pipeline metadata with dynamically loaded plugin runners from registry"""
import copy
# Deep copy AI metadata to avoid modifying the original
ai_metadata = copy.deepcopy(self.ap.pipeline_config_meta_ai)
# Find the runner stage
runner_stage = None
for stage in ai_metadata.get('stages', []):
if stage.get('name') == 'runner':
runner_stage = stage
break
if runner_stage:
# Find the runner select config (now uses 'id' field)
for config_item in runner_stage.get('config', []):
if config_item.get('name') == 'id':
# Get plugin agent runners from registry
try:
(
runner_options,
runner_stages,
) = await self.ap.agent_runner_registry.get_runner_metadata_for_pipeline()
# Replace options entirely with registry options
# Only installed/available runners should be shown
config_item['options'] = runner_options
# Use the registry order as the default order. If no runner is available, leave
# the default unset so the UI can recommend installing an AgentRunner plugin.
if runner_options and 'default' not in config_item:
config_item['default'] = runner_options[0]['name']
# Add corresponding stage configuration for each runner
for stage_config in runner_stages:
# Avoid duplicate stages
existing_stage_names = {s.get('name') for s in ai_metadata.get('stages', [])}
if stage_config['name'] not in existing_stage_names:
ai_metadata['stages'].append(stage_config)
except Exception as e:
self.ap.logger.warning(f'Failed to load plugin agent runners from registry: {e}')
return [
self.ap.pipeline_config_meta_trigger,
self.ap.pipeline_config_meta_safety,
self.ap.pipeline_config_meta_ai,
ai_metadata,
self.ap.pipeline_config_meta_output,
]
@@ -74,8 +163,6 @@ class PipelineService:
return self.ap.persistence_mgr.serialize_model(persistence_pipeline.LegacyPipeline, pipeline)
async def create_pipeline(self, pipeline_data: dict, default: bool = False) -> str:
from ....utils import paths as path_utils
# Check limitation
limitation = self.ap.instance_config.data.get('system', {}).get('limitation', {})
max_pipelines = limitation.get('max_pipelines', -1)
@@ -89,9 +176,7 @@ class PipelineService:
pipeline_data['stages'] = default_stage_order.copy()
pipeline_data['is_default'] = default
template_path = path_utils.get_resource_path('templates/default-pipeline-config.json')
with open(template_path, 'r', encoding='utf-8') as f:
pipeline_data['config'] = json.load(f)
pipeline_data['config'] = await self.get_default_pipeline_config()
# Ensure extensions_preferences is set with enable_all_plugins and enable_all_mcp_servers=True by default
if 'extensions_preferences' not in pipeline_data:
@@ -113,10 +198,16 @@ class PipelineService:
return pipeline_data['uuid']
async def update_pipeline(self, pipeline_uuid: str, pipeline_data: dict) -> None:
from ....agent.runner.config_migration import ConfigMigration
pipeline_data = pipeline_data.copy()
for protected_field in ('uuid', 'for_version', 'stages', 'is_default'):
pipeline_data.pop(protected_field, None)
# Migrate config to new format before saving
if 'config' in pipeline_data:
pipeline_data['config'] = ConfigMigration.migrate_pipeline_config(pipeline_data['config'])
await self.ap.persistence_mgr.execute_async(
sqlalchemy.update(persistence_pipeline.LegacyPipeline)
.where(persistence_pipeline.LegacyPipeline.uuid == pipeline_uuid)
+11 -5
View File
@@ -237,12 +237,18 @@ class BoxService:
if forced_template:
template = forced_template
else:
template = (
(query.pipeline_config or {})
.get('ai', {})
.get('local-agent', {})
.get('box-session-id-template', '{launcher_type}_{launcher_id}')
template = '{launcher_type}_{launcher_id}'
pipeline_config = query.pipeline_config or {}
ai_config = pipeline_config.get('ai', {}) if isinstance(pipeline_config, dict) else {}
runner_selector = ai_config.get('runner', {}) if isinstance(ai_config, dict) else {}
runner_id = runner_selector.get('id') if isinstance(runner_selector, dict) else None
runner_configs = ai_config.get('runner_config', {}) if isinstance(ai_config, dict) else {}
runner_config = runner_configs.get(runner_id, {}) if isinstance(runner_configs, dict) else {}
configured_template = (
runner_config.get('box-session-id-template') if isinstance(runner_config, dict) else None
)
if isinstance(configured_template, str) and configured_template:
template = configured_template
variables = dict(query.variables or {})
launcher_type = getattr(query, 'launcher_type', None)
if hasattr(launcher_type, 'value'):
+11
View File
@@ -4,6 +4,7 @@ import logging
import asyncio
import traceback
import os
from typing import TYPE_CHECKING
from ..platform import botmgr as im_mgr
from ..platform.webhook_pusher import WebhookPusher
@@ -46,6 +47,9 @@ from ..telemetry import telemetry as telemetry_module
from ..survey import manager as survey_module
from ..skill import manager as skill_mgr
if TYPE_CHECKING:
from ..agent.runner import AgentRunnerRegistry, AgentRunOrchestrator, AgentRunnerDefaultConfigService
class Application:
"""Runtime application object and context"""
@@ -165,6 +169,13 @@ class Application:
maintenance_service: maintenance_service.MaintenanceService = None
# Agent runner subsystem
agent_runner_registry: AgentRunnerRegistry = None
agent_runner_default_config_service: AgentRunnerDefaultConfigService = None
agent_run_orchestrator: AgentRunOrchestrator = None
def __init__(self):
pass
+11
View File
@@ -39,6 +39,7 @@ from ...vector import mgr as vectordb_mgr
from .. import taskmgr
from ...telemetry import telemetry as telemetry_module
from ...survey import manager as survey_module
from ...agent.runner import AgentRunnerRegistry, AgentRunOrchestrator, AgentRunnerDefaultConfigService
@stage.stage_class('BuildAppStage')
@@ -194,5 +195,15 @@ class BuildAppStage(stage.BootingStage):
await plugin_connector_inst.initialize()
ap.plugin_connector = plugin_connector_inst
# Initialize agent runner subsystem
agent_runner_registry_inst = AgentRunnerRegistry(ap)
ap.agent_runner_registry = agent_runner_registry_inst
agent_runner_default_config_service_inst = AgentRunnerDefaultConfigService(ap)
ap.agent_runner_default_config_service = agent_runner_default_config_service_inst
agent_run_orchestrator_inst = AgentRunOrchestrator(ap, agent_runner_registry_inst)
ap.agent_run_orchestrator = agent_run_orchestrator_inst
ctrl = controller.Controller(ap)
ap.ctrl = ctrl
@@ -0,0 +1,200 @@
"""Agent run ledger persistence entities."""
from __future__ import annotations
import datetime
import sqlalchemy
from .base import Base
class AgentRun(Base):
"""AgentRun stores Host-owned execution lifecycle facts."""
__tablename__ = 'agent_run'
id = sqlalchemy.Column(sqlalchemy.Integer, primary_key=True, autoincrement=True)
"""Auto-increment ID for pagination."""
run_id = sqlalchemy.Column(sqlalchemy.String(255), nullable=False, unique=True, index=True)
"""Unique AgentRunner run identifier."""
event_id = sqlalchemy.Column(sqlalchemy.String(255), nullable=True, index=True)
"""Input event that triggered this run."""
agent_id = sqlalchemy.Column(sqlalchemy.String(255), nullable=True)
"""Future Host-owned agent identifier."""
binding_id = sqlalchemy.Column(sqlalchemy.String(255), nullable=True, index=True)
"""Binding that selected this runner."""
runner_id = sqlalchemy.Column(sqlalchemy.String(255), nullable=False, index=True)
"""Runner descriptor ID."""
conversation_id = sqlalchemy.Column(sqlalchemy.String(255), nullable=True, index=True)
"""Conversation this run belongs to."""
thread_id = sqlalchemy.Column(sqlalchemy.String(255), nullable=True)
"""Thread this run belongs to."""
workspace_id = sqlalchemy.Column(sqlalchemy.String(255), nullable=True)
"""Workspace this run belongs to."""
bot_id = sqlalchemy.Column(sqlalchemy.String(255), nullable=True, index=True)
"""Bot UUID this run belongs to."""
status = sqlalchemy.Column(sqlalchemy.String(50), nullable=False, index=True)
"""Run lifecycle status."""
status_reason = sqlalchemy.Column(sqlalchemy.Text, nullable=True)
"""Human-readable terminal or current status reason."""
queue_name = sqlalchemy.Column(sqlalchemy.String(255), nullable=True, index=True)
"""Host queue name this run is waiting in."""
priority = sqlalchemy.Column(sqlalchemy.Integer, nullable=False, default=0)
"""Higher values are claimed before lower values within a queue."""
requested_runtime_id = sqlalchemy.Column(sqlalchemy.String(255), nullable=True, index=True)
"""Specific runtime requested by the producer, if any."""
claimed_by_runtime_id = sqlalchemy.Column(sqlalchemy.String(255), nullable=True, index=True)
"""Runtime that currently owns the claim lease."""
claim_token = sqlalchemy.Column(sqlalchemy.String(255), nullable=True, index=True)
"""Opaque token required to renew or release the current claim."""
claim_lease_expires_at = sqlalchemy.Column(sqlalchemy.DateTime, nullable=True, index=True)
"""When the current claim lease expires."""
dispatch_attempts = sqlalchemy.Column(sqlalchemy.Integer, nullable=False, default=0)
"""Number of times this run has been claimed for dispatch."""
last_claimed_at = sqlalchemy.Column(sqlalchemy.DateTime, nullable=True)
"""When this run was last claimed."""
created_at = sqlalchemy.Column(sqlalchemy.DateTime, nullable=False, default=datetime.datetime.utcnow)
"""When the run record was created."""
started_at = sqlalchemy.Column(sqlalchemy.DateTime, nullable=True)
"""When execution started."""
finished_at = sqlalchemy.Column(sqlalchemy.DateTime, nullable=True)
"""When execution reached a terminal status."""
updated_at = sqlalchemy.Column(
sqlalchemy.DateTime, nullable=False, default=datetime.datetime.utcnow, onupdate=datetime.datetime.utcnow
)
"""When the run record was last updated."""
deadline_at = sqlalchemy.Column(sqlalchemy.DateTime, nullable=True)
"""Execution deadline if one was assigned."""
cancel_requested_at = sqlalchemy.Column(sqlalchemy.DateTime, nullable=True)
"""When cancellation was requested."""
usage_json = sqlalchemy.Column(sqlalchemy.Text, nullable=True)
"""Final or latest aggregate token usage JSON."""
cost_json = sqlalchemy.Column(sqlalchemy.Text, nullable=True)
"""Host-calculated cost JSON, if available."""
authorization_json = sqlalchemy.Column(sqlalchemy.Text, nullable=True)
"""Run-scoped authorization snapshot JSON."""
metadata_json = sqlalchemy.Column(sqlalchemy.Text, nullable=True)
"""Additional metadata JSON."""
__table_args__ = (
sqlalchemy.Index(
'ix_agent_run_scope_status', 'bot_id', 'workspace_id', 'conversation_id', 'thread_id', 'status'
),
sqlalchemy.Index('ix_agent_run_runner_status', 'runner_id', 'status'),
sqlalchemy.Index('ix_agent_run_queue_claim', 'queue_name', 'status', 'priority', 'id'),
)
class AgentRuntime(Base):
"""AgentRuntime stores Host-owned runtime heartbeat registry facts."""
__tablename__ = 'agent_runtime'
id = sqlalchemy.Column(sqlalchemy.Integer, primary_key=True, autoincrement=True)
"""Auto-increment ID."""
runtime_id = sqlalchemy.Column(sqlalchemy.String(255), nullable=False, unique=True, index=True)
"""Unique runtime or daemon identifier."""
status = sqlalchemy.Column(sqlalchemy.String(50), nullable=False, index=True)
"""Runtime lifecycle status."""
display_name = sqlalchemy.Column(sqlalchemy.String(255), nullable=True)
"""Human-readable runtime display name."""
endpoint = sqlalchemy.Column(sqlalchemy.String(1024), nullable=True)
"""Runtime endpoint, if it exposes one."""
version = sqlalchemy.Column(sqlalchemy.String(255), nullable=True)
"""Runtime version string."""
capabilities_json = sqlalchemy.Column(sqlalchemy.Text, nullable=True)
"""Runtime capabilities JSON."""
labels_json = sqlalchemy.Column(sqlalchemy.Text, nullable=True)
"""Runtime labels JSON."""
metadata_json = sqlalchemy.Column(sqlalchemy.Text, nullable=True)
"""Additional metadata JSON."""
last_heartbeat_at = sqlalchemy.Column(sqlalchemy.DateTime, nullable=True, index=True)
"""When the runtime last sent a heartbeat."""
heartbeat_deadline_at = sqlalchemy.Column(sqlalchemy.DateTime, nullable=True, index=True)
"""When the runtime should be considered stale."""
created_at = sqlalchemy.Column(sqlalchemy.DateTime, nullable=False, default=datetime.datetime.utcnow)
"""When the runtime record was created."""
updated_at = sqlalchemy.Column(
sqlalchemy.DateTime, nullable=False, default=datetime.datetime.utcnow, onupdate=datetime.datetime.utcnow
)
"""When the runtime record was last updated."""
class AgentRunEvent(Base):
"""AgentRunEvent stores one result event emitted by a run."""
__tablename__ = 'agent_run_event'
id = sqlalchemy.Column(sqlalchemy.Integer, primary_key=True, autoincrement=True)
"""Auto-increment ID."""
run_id = sqlalchemy.Column(sqlalchemy.String(255), nullable=False, index=True)
"""Run that produced this event."""
sequence = sqlalchemy.Column(sqlalchemy.Integer, nullable=False)
"""Monotonic sequence inside the run."""
type = sqlalchemy.Column(sqlalchemy.String(100), nullable=False, index=True)
"""Result event type."""
data_json = sqlalchemy.Column(sqlalchemy.Text, nullable=True)
"""Result event payload JSON."""
usage_json = sqlalchemy.Column(sqlalchemy.Text, nullable=True)
"""Token usage JSON for this event, if provided."""
created_at = sqlalchemy.Column(sqlalchemy.DateTime, nullable=False, default=datetime.datetime.utcnow)
"""When this event was persisted."""
source = sqlalchemy.Column(sqlalchemy.String(50), nullable=True)
"""Source that appended the event."""
metadata_json = sqlalchemy.Column(sqlalchemy.Text, nullable=True)
"""Additional metadata JSON."""
__table_args__ = (
sqlalchemy.UniqueConstraint('run_id', 'sequence', name='uq_agent_run_event_run_sequence'),
sqlalchemy.Index('ix_agent_run_event_run_sequence', 'run_id', 'sequence'),
)
@@ -0,0 +1,88 @@
"""Agent runner state persistence entity for host-owned state."""
from __future__ import annotations
import sqlalchemy
import datetime
from .base import Base
class AgentRunnerState(Base):
"""AgentRunnerState stores host-owned state for AgentRunner protocol.
State is:
- Host-owned: Managed by LangBot, not by plugin instances
- Scope-isolated: Separated by runner_id + binding_identity + scope
- Policy-enforced: Controlled by StatePolicy (enable_state, state_scopes)
Scope key design:
- conversation: runner_id + binding_id + conversation_id [+ thread_id]
- actor: runner_id + binding_id + actor_type + actor_id
- subject: runner_id + binding_id + subject_type + subject_id
- runner: runner_id + binding_id
This table is the production store for AgentRunner state.
"""
__tablename__ = 'agent_runner_state'
id = sqlalchemy.Column(sqlalchemy.Integer, primary_key=True, autoincrement=True)
"""Auto-increment ID for sequencing."""
# Identity
runner_id = sqlalchemy.Column(sqlalchemy.String(255), nullable=False, index=True)
"""Runner descriptor ID (plugin:author/name/runner)."""
binding_identity = sqlalchemy.Column(sqlalchemy.String(255), nullable=False, index=True)
"""Binding identity for isolation (binding_id or scope_type:scope_id)."""
scope = sqlalchemy.Column(sqlalchemy.String(50), nullable=False, index=True)
"""State scope: 'conversation', 'actor', 'subject', or 'runner'."""
scope_key = sqlalchemy.Column(sqlalchemy.String(512), nullable=False)
"""Full scope key for unique lookup (includes all identity parts)."""
state_key = sqlalchemy.Column(sqlalchemy.String(255), nullable=False)
"""State key within scope (should use namespace prefix like external.*)."""
value_json = sqlalchemy.Column(sqlalchemy.Text, nullable=True)
"""State value as JSON string (size-limited by host)."""
# Context fields for querying/filtering
bot_id = sqlalchemy.Column(sqlalchemy.String(255), nullable=True, index=True)
"""Bot UUID if applicable."""
workspace_id = sqlalchemy.Column(sqlalchemy.String(255), nullable=True)
"""Workspace ID for multi-tenant."""
conversation_id = sqlalchemy.Column(sqlalchemy.String(255), nullable=True, index=True)
"""Conversation ID for conversation scope."""
thread_id = sqlalchemy.Column(sqlalchemy.String(255), nullable=True)
"""Thread ID for thread-scoped conversation state."""
actor_type = sqlalchemy.Column(sqlalchemy.String(50), nullable=True)
"""Actor type for actor scope."""
actor_id = sqlalchemy.Column(sqlalchemy.String(255), nullable=True, index=True)
"""Actor ID for actor scope."""
subject_type = sqlalchemy.Column(sqlalchemy.String(50), nullable=True)
"""Subject type for subject scope."""
subject_id = sqlalchemy.Column(sqlalchemy.String(255), nullable=True)
"""Subject ID for subject scope."""
# Lifecycle
created_at = sqlalchemy.Column(sqlalchemy.DateTime, nullable=False, default=datetime.datetime.utcnow)
"""When this state entry was created."""
updated_at = sqlalchemy.Column(sqlalchemy.DateTime, nullable=False, default=datetime.datetime.utcnow, onupdate=datetime.datetime.utcnow)
"""When this state entry was last updated."""
# Unique constraint: scope_key + state_key
__table_args__ = (
sqlalchemy.UniqueConstraint('scope_key', 'state_key', name='uq_agent_runner_state_scope_key_state_key'),
sqlalchemy.Index('ix_agent_runner_state_runner_binding', 'runner_id', 'binding_identity'),
sqlalchemy.Index('ix_agent_runner_state_scope_key_lookup', 'scope_key'),
)
@@ -0,0 +1,85 @@
"""EventLog persistence entity for storing auditable event facts."""
from __future__ import annotations
import sqlalchemy
import datetime
from .base import Base
class EventLog(Base):
"""EventLog stores auditable event records for AgentRunner.
This is the fact source for events - messages, tool calls, system events, etc.
Large payloads are stored separately; this table stores references and
summaries.
"""
__tablename__ = 'event_log'
id = sqlalchemy.Column(sqlalchemy.Integer, primary_key=True, autoincrement=True)
"""Auto-increment ID for sequencing."""
event_id = sqlalchemy.Column(sqlalchemy.String(255), nullable=False, unique=True, index=True)
"""Unique event identifier."""
event_type = sqlalchemy.Column(sqlalchemy.String(100), nullable=False, index=True)
"""Event type (message.received, tool.call.started, etc.)."""
event_time = sqlalchemy.Column(sqlalchemy.DateTime, nullable=True)
"""When the event occurred."""
source = sqlalchemy.Column(sqlalchemy.String(50), nullable=False)
"""Event source (platform, webui, api, scheduler, system, pipeline_adapter)."""
bot_id = sqlalchemy.Column(sqlalchemy.String(255), nullable=True, index=True)
"""Bot UUID that handled this event."""
workspace_id = sqlalchemy.Column(sqlalchemy.String(255), nullable=True)
"""Workspace ID for multi-tenant deployments."""
conversation_id = sqlalchemy.Column(sqlalchemy.String(255), nullable=True, index=True)
"""Conversation ID this event belongs to."""
thread_id = sqlalchemy.Column(sqlalchemy.String(255), nullable=True)
"""Thread ID if platform supports threads."""
# Actor information
actor_type = sqlalchemy.Column(sqlalchemy.String(50), nullable=True)
"""Actor type (user, system, runner)."""
actor_id = sqlalchemy.Column(sqlalchemy.String(255), nullable=True)
"""Actor identifier."""
actor_name = sqlalchemy.Column(sqlalchemy.String(255), nullable=True)
"""Actor display name."""
# Subject information
subject_type = sqlalchemy.Column(sqlalchemy.String(50), nullable=True)
"""Subject type (message, tool_call, attachment, etc.)."""
subject_id = sqlalchemy.Column(sqlalchemy.String(255), nullable=True)
"""Subject identifier."""
# Input information
input_summary = sqlalchemy.Column(sqlalchemy.Text, nullable=True)
"""Brief summary of input (truncated text, max 1000 chars)."""
input_json = sqlalchemy.Column(sqlalchemy.Text, nullable=True)
"""Full input JSON if reasonably sized (AgentInput as JSON string)."""
# Raw event reference
raw_ref = sqlalchemy.Column(sqlalchemy.String(255), nullable=True)
"""Reference to raw event payload stored outside the inline event row."""
run_id = sqlalchemy.Column(sqlalchemy.String(255), nullable=True, index=True)
"""Run ID that processed this event."""
runner_id = sqlalchemy.Column(sqlalchemy.String(255), nullable=True)
"""Runner ID that processed this event."""
created_at = sqlalchemy.Column(sqlalchemy.DateTime, nullable=False, default=datetime.datetime.utcnow)
"""When this record was created."""
metadata_json = sqlalchemy.Column(sqlalchemy.Text, nullable=True)
"""Additional metadata as JSON string."""
+1 -1
View File
@@ -9,7 +9,7 @@ class MCPServer(Base):
uuid = sqlalchemy.Column(sqlalchemy.String(255), primary_key=True, unique=True)
name = sqlalchemy.Column(sqlalchemy.String(255), nullable=False)
enable = sqlalchemy.Column(sqlalchemy.Boolean, nullable=False, default=False)
mode = sqlalchemy.Column(sqlalchemy.String(255), nullable=False) # stdio, remote (legacy: sse, http)
mode = sqlalchemy.Column(sqlalchemy.String(255), nullable=False) # stdio, sse, http
extra_args = sqlalchemy.Column(sqlalchemy.JSON, nullable=False, default={})
# Markdown documentation captured from LangBot Space at install time so the
# detail page can show docs even when the server is offline / has no tools.
@@ -0,0 +1,79 @@
"""Transcript persistence entity for conversation history projection."""
from __future__ import annotations
import sqlalchemy
import datetime
from .base import Base
class Transcript(Base):
"""Transcript stores conversation-oriented message projection for history API.
This is a projection of EventLog, optimized for agent history retrieval.
It includes message content and attachment refs, but not raw platform payloads.
"""
__tablename__ = 'transcript'
id = sqlalchemy.Column(sqlalchemy.Integer, primary_key=True, autoincrement=True)
"""Auto-increment ID for sequencing."""
transcript_id = sqlalchemy.Column(sqlalchemy.String(255), nullable=False, unique=True, index=True)
"""Unique transcript item identifier."""
event_id = sqlalchemy.Column(sqlalchemy.String(255), nullable=False, index=True)
"""Reference to the source event in EventLog."""
bot_id = sqlalchemy.Column(sqlalchemy.String(255), nullable=True, index=True)
"""Bot UUID this item belongs to."""
workspace_id = sqlalchemy.Column(sqlalchemy.String(255), nullable=True)
"""Workspace this item belongs to."""
conversation_id = sqlalchemy.Column(sqlalchemy.String(255), nullable=False, index=True)
"""Conversation this item belongs to."""
thread_id = sqlalchemy.Column(sqlalchemy.String(255), nullable=True)
"""Thread ID if platform supports threads."""
role = sqlalchemy.Column(sqlalchemy.String(50), nullable=False)
"""Message role: 'user', 'assistant', 'system', or 'tool'."""
item_type = sqlalchemy.Column(sqlalchemy.String(50), nullable=False, default='message')
"""Item type: 'message', 'tool_call', 'tool_result', 'system'."""
# Content
content = sqlalchemy.Column(sqlalchemy.Text, nullable=True)
"""Text content summary (may be truncated for large messages, max 4000 chars)."""
content_json = sqlalchemy.Column(sqlalchemy.Text, nullable=True)
"""Full structured content as JSON string (Message model dump)."""
# Attachment references
attachment_refs_json = sqlalchemy.Column(sqlalchemy.Text, nullable=True)
"""Attachment references as JSON string."""
# Sequence for cursor-based pagination
seq = sqlalchemy.Column(sqlalchemy.Integer, nullable=False)
"""Monotonic cursor sequence for pagination."""
# Context
run_id = sqlalchemy.Column(sqlalchemy.String(255), nullable=True, index=True)
"""Run ID that generated this item (for assistant messages)."""
runner_id = sqlalchemy.Column(sqlalchemy.String(255), nullable=True)
"""Runner ID that generated this item."""
created_at = sqlalchemy.Column(sqlalchemy.DateTime, nullable=False, default=datetime.datetime.utcnow)
"""When this item was created."""
metadata_json = sqlalchemy.Column(sqlalchemy.Text, nullable=True)
"""Additional metadata as JSON string (sender_id, platform, etc.)."""
# Indexes
__table_args__ = (
sqlalchemy.Index('ix_transcript_conversation_seq', 'conversation_id', 'seq'),
sqlalchemy.Index('ix_transcript_conversation_created', 'conversation_id', 'created_at'),
sqlalchemy.Index('ix_transcript_scope_seq', 'bot_id', 'workspace_id', 'conversation_id', 'thread_id', 'seq'),
)
@@ -13,6 +13,28 @@ from sqlalchemy.engine import Connection
from langbot.pkg.entity.persistence.base import Base
# Import all ORM models so they are registered with Base.metadata
# This is required for autogenerate to detect model changes
from langbot.pkg.entity.persistence import (
agent_run, # noqa: F401
agent_runner_state, # noqa: F401
apikey, # noqa: F401
bot, # noqa: F401
bstorage, # noqa: F401
event_log, # noqa: F401
mcp, # noqa: F401
metadata, # noqa: F401
model, # noqa: F401
monitoring, # noqa: F401
pipeline, # noqa: F401
plugin, # noqa: F401
rag, # noqa: F401
transcript, # noqa: F401
user, # noqa: F401
vector, # noqa: F401
webhook, # noqa: F401
)
target_metadata = Base.metadata
@@ -0,0 +1,88 @@
"""Normalize AgentRunner config containers
Revision ID: 0005_migrate_runner_config
Revises: 0005_add_llm_context_length
Create Date: 2026-05-10
"""
import json
import sqlalchemy as sa
from alembic import op
from langbot.pkg.agent.runner.config_migration import ConfigMigration
revision = '0005_migrate_runner_config'
down_revision = '0005_add_llm_context_length'
branch_labels = None
depends_on = None
def migrate_pipeline_config(config: dict) -> dict:
"""Migrate persisted pipeline config to the AgentRunner plugin shape."""
return ConfigMigration.migrate_pipeline_config(config)
def _load_config(config_value):
if isinstance(config_value, dict):
return config_value
if isinstance(config_value, str):
return json.loads(config_value)
return None
def _update_config(conn, table_name: str, pipeline_uuid: str, migrated_config: dict) -> None:
"""Write JSON config using a dialect-compatible bind."""
config_json = json.dumps(migrated_config)
if conn.dialect.name == 'postgresql':
conn.execute(
sa.text(
f'UPDATE {table_name} '
'SET config = CAST(:config AS JSON) '
'WHERE uuid = :uuid'
),
{'config': config_json, 'uuid': pipeline_uuid},
)
return
conn.execute(
sa.text(f'UPDATE {table_name} SET config = :config WHERE uuid = :uuid'),
{'config': config_json, 'uuid': pipeline_uuid},
)
def upgrade() -> None:
"""Normalize existing pipeline config containers."""
conn = op.get_bind()
inspector = sa.inspect(conn)
table_name = 'legacy_pipelines'
# Check if pipeline table exists (may not exist in fresh install)
if table_name not in inspector.get_table_names():
return
# Get all pipelines
result = conn.execute(sa.text(f'SELECT uuid, config FROM {table_name}'))
pipelines = result.fetchall()
for pipeline_uuid, config_json in pipelines:
if not config_json:
continue
try:
config = _load_config(config_json)
if not isinstance(config, dict):
continue
migrated_config = migrate_pipeline_config(config)
# Only update if config changed
if json.dumps(config, sort_keys=True) != json.dumps(migrated_config, sort_keys=True):
_update_config(conn, table_name, pipeline_uuid, migrated_config)
except Exception:
# Skip invalid configs
continue
def downgrade() -> None:
"""Downgrade is not supported for data migration."""
# No downgrade - keep configs in new format
pass
@@ -1,47 +0,0 @@
"""normalize mcp_servers transport mode to local/remote
The MCP transport selection for servers LangBot connects to was simplified
from three persisted modes (``stdio`` / ``sse`` / ``http``) down to two:
``stdio`` (local, Box-sandboxed) and ``remote`` (the runtime auto-detects
Streamable HTTP vs. legacy SSE from the URL). This migration rewrites any
existing ``sse`` / ``http`` rows to ``remote`` so the stored value matches the
new two-option UI. The connection args (url / headers / timeout /
ssereadtimeout) live in ``extra_args`` and are left untouched the
auto-detecting remote transport consumes them regardless.
Revision ID: 0006_normalize_mcp_remote_mode
Revises: 0005_add_llm_context_length
Create Date: 2026-06-21
"""
import sqlalchemy as sa
from alembic import op
revision = '0006_normalize_mcp_remote_mode'
down_revision = '0005_add_llm_context_length'
branch_labels = None
depends_on = None
def upgrade() -> None:
# Idempotent data migration: collapse legacy remote transports into the
# unified ``remote`` mode. Guard against the table being absent (truly empty
# DB migrated before create_all()).
conn = op.get_bind()
inspector = sa.inspect(conn)
if 'mcp_servers' not in inspector.get_table_names():
return
conn.execute(sa.text("UPDATE mcp_servers SET mode = 'remote' WHERE mode IN ('sse', 'http')"))
def downgrade() -> None:
# The legacy distinction between ``sse`` and ``http`` cannot be recovered
# from ``remote`` alone (the transport is auto-detected at runtime, not
# stored). Map everything that is not ``stdio`` back to ``http`` as a
# best-effort reversal — both legacy modes still route correctly in the
# backend lifecycle dispatch.
conn = op.get_bind()
inspector = sa.inspect(conn)
if 'mcp_servers' not in inspector.get_table_names():
return
conn.execute(sa.text("UPDATE mcp_servers SET mode = 'http' WHERE mode = 'remote'"))
@@ -0,0 +1,148 @@
"""add_event_log_and_transcript_tables
Revision ID: 58846a8d7a81
Revises: 0005_migrate_runner_config
Create Date: 2026-05-23 15:41:47.030841
"""
from alembic import op
import sqlalchemy as sa
# revision identifiers
revision = '58846a8d7a81'
down_revision = '0005_migrate_runner_config'
branch_labels = None
depends_on = None
def _table_exists(table_name: str) -> bool:
return table_name in sa.inspect(op.get_bind()).get_table_names()
def _index_exists(table_name: str, index_name: str) -> bool:
return index_name in {index['name'] for index in sa.inspect(op.get_bind()).get_indexes(table_name)}
def _column_exists(table_name: str, column_name: str) -> bool:
return column_name in {column['name'] for column in sa.inspect(op.get_bind()).get_columns(table_name)}
def _add_column_if_missing(table_name: str, column: sa.Column) -> None:
if not _table_exists(table_name) or _column_exists(table_name, column.name):
return
with op.batch_alter_table(table_name, schema=None) as batch_op:
batch_op.add_column(column)
def _create_index_if_missing(table_name: str, index_name: str, columns: list[str], *, unique: bool = False) -> None:
if not _table_exists(table_name) or _index_exists(table_name, index_name):
return
with op.batch_alter_table(table_name, schema=None) as batch_op:
batch_op.create_index(index_name, columns, unique=unique)
def _drop_index_if_exists(table_name: str, index_name: str) -> None:
if not _table_exists(table_name) or not _index_exists(table_name, index_name):
return
with op.batch_alter_table(table_name, schema=None) as batch_op:
batch_op.drop_index(index_name)
def upgrade() -> None:
# Create event_log table
if not _table_exists('event_log'):
op.create_table(
'event_log',
sa.Column('id', sa.Integer(), primary_key=True, autoincrement=True),
sa.Column('event_id', sa.String(255), nullable=False, unique=True),
sa.Column('event_type', sa.String(100), nullable=False),
sa.Column('event_time', sa.DateTime(), nullable=True),
sa.Column('source', sa.String(50), nullable=False),
sa.Column('bot_id', sa.String(255), nullable=True),
sa.Column('workspace_id', sa.String(255), nullable=True),
sa.Column('conversation_id', sa.String(255), nullable=True),
sa.Column('thread_id', sa.String(255), nullable=True),
sa.Column('actor_type', sa.String(50), nullable=True),
sa.Column('actor_id', sa.String(255), nullable=True),
sa.Column('actor_name', sa.String(255), nullable=True),
sa.Column('subject_type', sa.String(50), nullable=True),
sa.Column('subject_id', sa.String(255), nullable=True),
sa.Column('input_summary', sa.Text(), nullable=True),
sa.Column('input_json', sa.Text(), nullable=True),
sa.Column('raw_ref', sa.String(255), nullable=True),
sa.Column('run_id', sa.String(255), nullable=True),
sa.Column('runner_id', sa.String(255), nullable=True),
sa.Column('created_at', sa.DateTime(), nullable=False, server_default=sa.text('(CURRENT_TIMESTAMP)')),
sa.Column('metadata_json', sa.Text(), nullable=True),
)
# Create indexes for event_log
_create_index_if_missing('event_log', 'ix_event_log_event_id', ['event_id'], unique=True)
_create_index_if_missing('event_log', 'ix_event_log_event_type', ['event_type'])
_create_index_if_missing('event_log', 'ix_event_log_bot_id', ['bot_id'])
_create_index_if_missing('event_log', 'ix_event_log_conversation_id', ['conversation_id'])
_create_index_if_missing('event_log', 'ix_event_log_run_id', ['run_id'])
# Create transcript table
if not _table_exists('transcript'):
op.create_table(
'transcript',
sa.Column('id', sa.Integer(), primary_key=True, autoincrement=True),
sa.Column('transcript_id', sa.String(255), nullable=False, unique=True),
sa.Column('event_id', sa.String(255), nullable=False),
sa.Column('bot_id', sa.String(255), nullable=True),
sa.Column('workspace_id', sa.String(255), nullable=True),
sa.Column('conversation_id', sa.String(255), nullable=False),
sa.Column('thread_id', sa.String(255), nullable=True),
sa.Column('role', sa.String(50), nullable=False),
sa.Column('item_type', sa.String(50), nullable=False, server_default='message'),
sa.Column('content', sa.Text(), nullable=True),
sa.Column('content_json', sa.Text(), nullable=True),
sa.Column('attachment_refs_json', sa.Text(), nullable=True),
sa.Column('seq', sa.Integer(), nullable=False),
sa.Column('run_id', sa.String(255), nullable=True),
sa.Column('runner_id', sa.String(255), nullable=True),
sa.Column('created_at', sa.DateTime(), nullable=False, server_default=sa.text('(CURRENT_TIMESTAMP)')),
sa.Column('metadata_json', sa.Text(), nullable=True),
)
else:
_add_column_if_missing('transcript', sa.Column('bot_id', sa.String(255), nullable=True))
_add_column_if_missing('transcript', sa.Column('workspace_id', sa.String(255), nullable=True))
# Create indexes for transcript
_create_index_if_missing('transcript', 'ix_transcript_transcript_id', ['transcript_id'], unique=True)
_create_index_if_missing('transcript', 'ix_transcript_event_id', ['event_id'])
_create_index_if_missing('transcript', 'ix_transcript_bot_id', ['bot_id'])
_create_index_if_missing('transcript', 'ix_transcript_conversation_id', ['conversation_id'])
_create_index_if_missing('transcript', 'ix_transcript_conversation_seq', ['conversation_id', 'seq'])
_create_index_if_missing('transcript', 'ix_transcript_conversation_created', ['conversation_id', 'created_at'])
_create_index_if_missing(
'transcript',
'ix_transcript_scope_seq',
['bot_id', 'workspace_id', 'conversation_id', 'thread_id', 'seq'],
)
_create_index_if_missing('transcript', 'ix_transcript_run_id', ['run_id'])
def downgrade() -> None:
# Drop transcript table
_drop_index_if_exists('transcript', 'ix_transcript_run_id')
_drop_index_if_exists('transcript', 'ix_transcript_scope_seq')
_drop_index_if_exists('transcript', 'ix_transcript_conversation_created')
_drop_index_if_exists('transcript', 'ix_transcript_conversation_seq')
_drop_index_if_exists('transcript', 'ix_transcript_conversation_id')
_drop_index_if_exists('transcript', 'ix_transcript_bot_id')
_drop_index_if_exists('transcript', 'ix_transcript_event_id')
_drop_index_if_exists('transcript', 'ix_transcript_transcript_id')
if _table_exists('transcript'):
op.drop_table('transcript')
# Drop event_log table
_drop_index_if_exists('event_log', 'ix_event_log_run_id')
_drop_index_if_exists('event_log', 'ix_event_log_conversation_id')
_drop_index_if_exists('event_log', 'ix_event_log_bot_id')
_drop_index_if_exists('event_log', 'ix_event_log_event_type')
_drop_index_if_exists('event_log', 'ix_event_log_event_id')
if _table_exists('event_log'):
op.drop_table('event_log')
@@ -0,0 +1,94 @@
# Alembic script.py.mako — template for auto-generated revisions
"""add agent_runner_state table for host-owned persistent state
Revision ID: 6dfd3dd7f0c7
Revises: 58846a8d7a81
Create Date: 2026-05-23 19:49:08.529110
"""
from alembic import op
import sqlalchemy as sa
# revision identifiers
revision = '6dfd3dd7f0c7'
down_revision = '58846a8d7a81'
branch_labels = None
depends_on = None
def _table_exists(table_name: str) -> bool:
return table_name in sa.inspect(op.get_bind()).get_table_names()
def _index_exists(table_name: str, index_name: str) -> bool:
return index_name in {index['name'] for index in sa.inspect(op.get_bind()).get_indexes(table_name)}
def _create_index_if_missing(table_name: str, index_name: str, columns: list[str], *, unique: bool = False) -> None:
if not _table_exists(table_name) or _index_exists(table_name, index_name):
return
with op.batch_alter_table(table_name, schema=None) as batch_op:
batch_op.create_index(index_name, columns, unique=unique)
def _drop_index_if_exists(table_name: str, index_name: str) -> None:
if not _table_exists(table_name) or not _index_exists(table_name, index_name):
return
with op.batch_alter_table(table_name, schema=None) as batch_op:
batch_op.drop_index(index_name)
def upgrade() -> None:
# ### commands auto generated by Alembic - please adjust! ###
if not _table_exists('agent_runner_state'):
op.create_table('agent_runner_state',
sa.Column('id', sa.Integer(), autoincrement=True, nullable=False),
sa.Column('runner_id', sa.String(length=255), nullable=False),
sa.Column('binding_identity', sa.String(length=255), nullable=False),
sa.Column('scope', sa.String(length=50), nullable=False),
sa.Column('scope_key', sa.String(length=512), nullable=False),
sa.Column('state_key', sa.String(length=255), nullable=False),
sa.Column('value_json', sa.Text(), nullable=True),
sa.Column('bot_id', sa.String(length=255), nullable=True),
sa.Column('workspace_id', sa.String(length=255), nullable=True),
sa.Column('conversation_id', sa.String(length=255), nullable=True),
sa.Column('thread_id', sa.String(length=255), nullable=True),
sa.Column('actor_type', sa.String(length=50), nullable=True),
sa.Column('actor_id', sa.String(length=255), nullable=True),
sa.Column('subject_type', sa.String(length=50), nullable=True),
sa.Column('subject_id', sa.String(length=255), nullable=True),
sa.Column('created_at', sa.DateTime(), nullable=False),
sa.Column('updated_at', sa.DateTime(), nullable=False),
sa.PrimaryKeyConstraint('id'),
sa.UniqueConstraint('scope_key', 'state_key', name='uq_agent_runner_state_scope_key_state_key')
)
_create_index_if_missing('agent_runner_state', 'ix_agent_runner_state_actor_id', ['actor_id'])
_create_index_if_missing('agent_runner_state', 'ix_agent_runner_state_binding_identity', ['binding_identity'])
_create_index_if_missing('agent_runner_state', 'ix_agent_runner_state_bot_id', ['bot_id'])
_create_index_if_missing('agent_runner_state', 'ix_agent_runner_state_conversation_id', ['conversation_id'])
_create_index_if_missing(
'agent_runner_state',
'ix_agent_runner_state_runner_binding',
['runner_id', 'binding_identity'],
)
_create_index_if_missing('agent_runner_state', 'ix_agent_runner_state_runner_id', ['runner_id'])
_create_index_if_missing('agent_runner_state', 'ix_agent_runner_state_scope', ['scope'])
_create_index_if_missing('agent_runner_state', 'ix_agent_runner_state_scope_key_lookup', ['scope_key'])
# ### end Alembic commands ###
def downgrade() -> None:
# ### commands auto generated by Alembic - please adjust! ###
_drop_index_if_exists('agent_runner_state', 'ix_agent_runner_state_scope_key_lookup')
_drop_index_if_exists('agent_runner_state', 'ix_agent_runner_state_scope')
_drop_index_if_exists('agent_runner_state', 'ix_agent_runner_state_runner_id')
_drop_index_if_exists('agent_runner_state', 'ix_agent_runner_state_runner_binding')
_drop_index_if_exists('agent_runner_state', 'ix_agent_runner_state_conversation_id')
_drop_index_if_exists('agent_runner_state', 'ix_agent_runner_state_bot_id')
_drop_index_if_exists('agent_runner_state', 'ix_agent_runner_state_binding_identity')
_drop_index_if_exists('agent_runner_state', 'ix_agent_runner_state_actor_id')
if _table_exists('agent_runner_state'):
op.drop_table('agent_runner_state')
# ### end Alembic commands ###
@@ -0,0 +1,78 @@
"""add transcript scope columns
Revision ID: 7b2c1d9e4f30
Revises: 6dfd3dd7f0c7
Create Date: 2026-06-12
"""
from alembic import op
import sqlalchemy as sa
revision = '7b2c1d9e4f30'
down_revision = '6dfd3dd7f0c7'
branch_labels = None
depends_on = None
def _table_exists(table_name: str) -> bool:
return table_name in sa.inspect(op.get_bind()).get_table_names()
def _column_exists(table_name: str, column_name: str) -> bool:
return column_name in {column['name'] for column in sa.inspect(op.get_bind()).get_columns(table_name)}
def _index_exists(table_name: str, index_name: str) -> bool:
return index_name in {index['name'] for index in sa.inspect(op.get_bind()).get_indexes(table_name)}
def _add_column_if_missing(table_name: str, column: sa.Column) -> None:
if not _table_exists(table_name) or _column_exists(table_name, column.name):
return
with op.batch_alter_table(table_name, schema=None) as batch_op:
batch_op.add_column(column)
def _create_index_if_missing(table_name: str, index_name: str, columns: list[str]) -> None:
if not _table_exists(table_name) or _index_exists(table_name, index_name):
return
existing_columns = {column['name'] for column in sa.inspect(op.get_bind()).get_columns(table_name)}
if not set(columns).issubset(existing_columns):
return
with op.batch_alter_table(table_name, schema=None) as batch_op:
batch_op.create_index(index_name, columns)
def _drop_index_if_exists(table_name: str, index_name: str) -> None:
if not _table_exists(table_name) or not _index_exists(table_name, index_name):
return
with op.batch_alter_table(table_name, schema=None) as batch_op:
batch_op.drop_index(index_name)
def upgrade() -> None:
_add_column_if_missing('transcript', sa.Column('bot_id', sa.String(255), nullable=True))
_add_column_if_missing('transcript', sa.Column('workspace_id', sa.String(255), nullable=True))
_create_index_if_missing('transcript', 'ix_transcript_bot_id', ['bot_id'])
_create_index_if_missing(
'transcript',
'ix_transcript_scope_seq',
['bot_id', 'workspace_id', 'conversation_id', 'thread_id', 'seq'],
)
_drop_index_if_exists('agent_runner_state', 'ix_agent_runner_state_scope_key')
_create_index_if_missing('agent_runner_state', 'ix_agent_runner_state_scope_key_lookup', ['scope_key'])
def downgrade() -> None:
_drop_index_if_exists('agent_runner_state', 'ix_agent_runner_state_scope_key_lookup')
_create_index_if_missing('agent_runner_state', 'ix_agent_runner_state_scope_key', ['scope_key'])
_drop_index_if_exists('transcript', 'ix_transcript_scope_seq')
_drop_index_if_exists('transcript', 'ix_transcript_bot_id')
if not _table_exists('transcript'):
return
existing_columns = {column['name'] for column in sa.inspect(op.get_bind()).get_columns('transcript')}
with op.batch_alter_table('transcript', schema=None) as batch_op:
if 'workspace_id' in existing_columns:
batch_op.drop_column('workspace_id')
if 'bot_id' in existing_columns:
batch_op.drop_column('bot_id')
@@ -0,0 +1,202 @@
"""add agent run ledger
Revision ID: 8d3a1f2c4b6e
Revises: 7b2c1d9e4f30
Create Date: 2026-06-15
"""
from alembic import op
import sqlalchemy as sa
revision = '8d3a1f2c4b6e'
down_revision = '7b2c1d9e4f30'
branch_labels = None
depends_on = None
def _table_exists(table_name: str) -> bool:
return table_name in sa.inspect(op.get_bind()).get_table_names()
def _index_exists(table_name: str, index_name: str) -> bool:
return index_name in {index['name'] for index in sa.inspect(op.get_bind()).get_indexes(table_name)}
def _column_exists(table_name: str, column_name: str) -> bool:
if not _table_exists(table_name):
return False
return column_name in {column['name'] for column in sa.inspect(op.get_bind()).get_columns(table_name)}
def _add_column_if_missing(table_name: str, column: sa.Column) -> None:
if not _table_exists(table_name) or _column_exists(table_name, column.name):
return
with op.batch_alter_table(table_name, schema=None) as batch_op:
batch_op.add_column(column)
def _create_index_if_missing(table_name: str, index_name: str, columns: list[str], *, unique: bool = False) -> None:
if not _table_exists(table_name) or _index_exists(table_name, index_name):
return
existing_columns = {column['name'] for column in sa.inspect(op.get_bind()).get_columns(table_name)}
if not set(columns).issubset(existing_columns):
return
with op.batch_alter_table(table_name, schema=None) as batch_op:
batch_op.create_index(index_name, columns, unique=unique)
def _drop_index_if_exists(table_name: str, index_name: str) -> None:
if not _table_exists(table_name) or not _index_exists(table_name, index_name):
return
with op.batch_alter_table(table_name, schema=None) as batch_op:
batch_op.drop_index(index_name)
def upgrade() -> None:
if not _table_exists('agent_run'):
op.create_table(
'agent_run',
sa.Column('id', sa.Integer(), primary_key=True, autoincrement=True),
sa.Column('run_id', sa.String(255), nullable=False, unique=True),
sa.Column('event_id', sa.String(255), nullable=True),
sa.Column('agent_id', sa.String(255), nullable=True),
sa.Column('binding_id', sa.String(255), nullable=True),
sa.Column('runner_id', sa.String(255), nullable=False),
sa.Column('conversation_id', sa.String(255), nullable=True),
sa.Column('thread_id', sa.String(255), nullable=True),
sa.Column('workspace_id', sa.String(255), nullable=True),
sa.Column('bot_id', sa.String(255), nullable=True),
sa.Column('status', sa.String(50), nullable=False),
sa.Column('status_reason', sa.Text(), nullable=True),
sa.Column('queue_name', sa.String(255), nullable=True),
sa.Column('priority', sa.Integer(), nullable=False, server_default='0'),
sa.Column('requested_runtime_id', sa.String(255), nullable=True),
sa.Column('claimed_by_runtime_id', sa.String(255), nullable=True),
sa.Column('claim_token', sa.String(255), nullable=True),
sa.Column('claim_lease_expires_at', sa.DateTime(), nullable=True),
sa.Column('dispatch_attempts', sa.Integer(), nullable=False, server_default='0'),
sa.Column('last_claimed_at', sa.DateTime(), nullable=True),
sa.Column('created_at', sa.DateTime(), nullable=False, server_default=sa.text('(CURRENT_TIMESTAMP)')),
sa.Column('started_at', sa.DateTime(), nullable=True),
sa.Column('finished_at', sa.DateTime(), nullable=True),
sa.Column('updated_at', sa.DateTime(), nullable=False, server_default=sa.text('(CURRENT_TIMESTAMP)')),
sa.Column('deadline_at', sa.DateTime(), nullable=True),
sa.Column('cancel_requested_at', sa.DateTime(), nullable=True),
sa.Column('usage_json', sa.Text(), nullable=True),
sa.Column('cost_json', sa.Text(), nullable=True),
sa.Column('authorization_json', sa.Text(), nullable=True),
sa.Column('metadata_json', sa.Text(), nullable=True),
)
else:
_add_column_if_missing('agent_run', sa.Column('queue_name', sa.String(255), nullable=True))
_add_column_if_missing(
'agent_run', sa.Column('priority', sa.Integer(), nullable=False, server_default='0')
)
_add_column_if_missing('agent_run', sa.Column('requested_runtime_id', sa.String(255), nullable=True))
_add_column_if_missing('agent_run', sa.Column('claimed_by_runtime_id', sa.String(255), nullable=True))
_add_column_if_missing('agent_run', sa.Column('claim_token', sa.String(255), nullable=True))
_add_column_if_missing('agent_run', sa.Column('claim_lease_expires_at', sa.DateTime(), nullable=True))
_add_column_if_missing(
'agent_run', sa.Column('dispatch_attempts', sa.Integer(), nullable=False, server_default='0')
)
_add_column_if_missing('agent_run', sa.Column('last_claimed_at', sa.DateTime(), nullable=True))
_create_index_if_missing('agent_run', 'ix_agent_run_run_id', ['run_id'], unique=True)
_create_index_if_missing('agent_run', 'ix_agent_run_event_id', ['event_id'])
_create_index_if_missing('agent_run', 'ix_agent_run_binding_id', ['binding_id'])
_create_index_if_missing('agent_run', 'ix_agent_run_runner_id', ['runner_id'])
_create_index_if_missing('agent_run', 'ix_agent_run_conversation_id', ['conversation_id'])
_create_index_if_missing('agent_run', 'ix_agent_run_bot_id', ['bot_id'])
_create_index_if_missing('agent_run', 'ix_agent_run_status', ['status'])
_create_index_if_missing('agent_run', 'ix_agent_run_queue_name', ['queue_name'])
_create_index_if_missing('agent_run', 'ix_agent_run_requested_runtime_id', ['requested_runtime_id'])
_create_index_if_missing('agent_run', 'ix_agent_run_claimed_by_runtime_id', ['claimed_by_runtime_id'])
_create_index_if_missing('agent_run', 'ix_agent_run_claim_token', ['claim_token'])
_create_index_if_missing('agent_run', 'ix_agent_run_claim_lease_expires_at', ['claim_lease_expires_at'])
_create_index_if_missing(
'agent_run',
'ix_agent_run_scope_status',
['bot_id', 'workspace_id', 'conversation_id', 'thread_id', 'status'],
)
_create_index_if_missing('agent_run', 'ix_agent_run_runner_status', ['runner_id', 'status'])
_create_index_if_missing('agent_run', 'ix_agent_run_queue_claim', ['queue_name', 'status', 'priority', 'id'])
if not _table_exists('agent_run_event'):
op.create_table(
'agent_run_event',
sa.Column('id', sa.Integer(), primary_key=True, autoincrement=True),
sa.Column('run_id', sa.String(255), nullable=False),
sa.Column('sequence', sa.Integer(), nullable=False),
sa.Column('type', sa.String(100), nullable=False),
sa.Column('data_json', sa.Text(), nullable=True),
sa.Column('usage_json', sa.Text(), nullable=True),
sa.Column('created_at', sa.DateTime(), nullable=False, server_default=sa.text('(CURRENT_TIMESTAMP)')),
sa.Column('source', sa.String(50), nullable=True),
sa.Column('metadata_json', sa.Text(), nullable=True),
sa.UniqueConstraint('run_id', 'sequence', name='uq_agent_run_event_run_sequence'),
)
_create_index_if_missing('agent_run_event', 'ix_agent_run_event_run_id', ['run_id'])
_create_index_if_missing('agent_run_event', 'ix_agent_run_event_type', ['type'])
_create_index_if_missing(
'agent_run_event',
'ix_agent_run_event_run_sequence',
['run_id', 'sequence'],
)
if not _table_exists('agent_runtime'):
op.create_table(
'agent_runtime',
sa.Column('id', sa.Integer(), primary_key=True, autoincrement=True),
sa.Column('runtime_id', sa.String(255), nullable=False, unique=True),
sa.Column('status', sa.String(50), nullable=False),
sa.Column('display_name', sa.String(255), nullable=True),
sa.Column('endpoint', sa.String(1024), nullable=True),
sa.Column('version', sa.String(255), nullable=True),
sa.Column('capabilities_json', sa.Text(), nullable=True),
sa.Column('labels_json', sa.Text(), nullable=True),
sa.Column('metadata_json', sa.Text(), nullable=True),
sa.Column('last_heartbeat_at', sa.DateTime(), nullable=True),
sa.Column('heartbeat_deadline_at', sa.DateTime(), nullable=True),
sa.Column('created_at', sa.DateTime(), nullable=False, server_default=sa.text('(CURRENT_TIMESTAMP)')),
sa.Column('updated_at', sa.DateTime(), nullable=False, server_default=sa.text('(CURRENT_TIMESTAMP)')),
)
_create_index_if_missing('agent_runtime', 'ix_agent_runtime_runtime_id', ['runtime_id'], unique=True)
_create_index_if_missing('agent_runtime', 'ix_agent_runtime_status', ['status'])
_create_index_if_missing('agent_runtime', 'ix_agent_runtime_last_heartbeat_at', ['last_heartbeat_at'])
_create_index_if_missing('agent_runtime', 'ix_agent_runtime_heartbeat_deadline_at', ['heartbeat_deadline_at'])
def downgrade() -> None:
_drop_index_if_exists('agent_runtime', 'ix_agent_runtime_heartbeat_deadline_at')
_drop_index_if_exists('agent_runtime', 'ix_agent_runtime_last_heartbeat_at')
_drop_index_if_exists('agent_runtime', 'ix_agent_runtime_status')
_drop_index_if_exists('agent_runtime', 'ix_agent_runtime_runtime_id')
if _table_exists('agent_runtime'):
op.drop_table('agent_runtime')
_drop_index_if_exists('agent_run_event', 'ix_agent_run_event_run_sequence')
_drop_index_if_exists('agent_run_event', 'ix_agent_run_event_type')
_drop_index_if_exists('agent_run_event', 'ix_agent_run_event_run_id')
if _table_exists('agent_run_event'):
op.drop_table('agent_run_event')
_drop_index_if_exists('agent_run', 'ix_agent_run_queue_claim')
_drop_index_if_exists('agent_run', 'ix_agent_run_claim_lease_expires_at')
_drop_index_if_exists('agent_run', 'ix_agent_run_claim_token')
_drop_index_if_exists('agent_run', 'ix_agent_run_claimed_by_runtime_id')
_drop_index_if_exists('agent_run', 'ix_agent_run_requested_runtime_id')
_drop_index_if_exists('agent_run', 'ix_agent_run_queue_name')
_drop_index_if_exists('agent_run', 'ix_agent_run_runner_status')
_drop_index_if_exists('agent_run', 'ix_agent_run_scope_status')
_drop_index_if_exists('agent_run', 'ix_agent_run_status')
_drop_index_if_exists('agent_run', 'ix_agent_run_bot_id')
_drop_index_if_exists('agent_run', 'ix_agent_run_conversation_id')
_drop_index_if_exists('agent_run', 'ix_agent_run_runner_id')
_drop_index_if_exists('agent_run', 'ix_agent_run_binding_id')
_drop_index_if_exists('agent_run', 'ix_agent_run_event_id')
_drop_index_if_exists('agent_run', 'ix_agent_run_run_id')
if _table_exists('agent_run'):
op.drop_table('agent_run')
@@ -11,6 +11,7 @@ from ...entity.persistence import (
pipeline as persistence_pipeline,
bot as persistence_bot,
)
from ...agent.runner.config_migration import LEGACY_RUNNER_ID_MAP
@migration.migration_class(1)
@@ -114,21 +115,28 @@ class DBMigrateV3Config(migration.DBMigration):
pipeline_config = default_pipeline['config']
# ai
pipeline_config['ai']['runner'] = {
'runner': self.ap.provider_cfg.data['runner'],
ai_config = pipeline_config.setdefault('ai', {})
runner_name = self.ap.provider_cfg.data['runner']
runner_id = LEGACY_RUNNER_ID_MAP.get(runner_name, '')
ai_config['runner'] = {
'id': runner_id,
}
pipeline_config['ai']['local-agent']['model'] = model_uuid
pipeline_config['ai']['local-agent']['max-round'] = self.ap.pipeline_cfg.data['msg-truncate']['round'][
'max-round'
]
runner_configs = ai_config.setdefault('runner_config', {})
pipeline_config['ai']['local-agent']['prompt'] = [
local_agent_runner_id = LEGACY_RUNNER_ID_MAP['local-agent']
local_agent_config = runner_configs.setdefault(local_agent_runner_id, {})
local_agent_config['model'] = {
'primary': model_uuid,
'fallbacks': [],
}
local_agent_config['prompt'] = [
{
'role': 'system',
'content': self.ap.provider_cfg.data['prompt']['default'],
}
]
pipeline_config['ai']['dify-service-api'] = {
runner_configs[LEGACY_RUNNER_ID_MAP['dify-service-api']] = {
'base-url': self.ap.provider_cfg.data['dify-service-api']['base-url'],
'app-type': self.ap.provider_cfg.data['dify-service-api']['app-type'],
'api-key': self.ap.provider_cfg.data['dify-service-api'][
@@ -139,7 +147,7 @@ class DBMigrateV3Config(migration.DBMigration):
self.ap.provider_cfg.data['dify-service-api']['app-type']
]['timeout'],
}
pipeline_config['ai']['dashscope-app-api'] = {
runner_configs[LEGACY_RUNNER_ID_MAP['dashscope-app-api']] = {
'app-type': self.ap.provider_cfg.data['dashscope-app-api']['app-type'],
'api-key': self.ap.provider_cfg.data['dashscope-app-api']['api-key'],
'references_quote': self.ap.provider_cfg.data['dashscope-app-api'][
+47 -1
View File
@@ -21,11 +21,45 @@ class Controller:
self.ap = ap
self.semaphore = asyncio.Semaphore(self.ap.instance_config.data['concurrency']['pipeline'])
async def _try_claim_steering_before_session_slot(
self,
query: pipeline_query.Query,
) -> bool:
"""Claim steering while the normal per-session slot is still busy.
Follow-up input must be claimed before it waits behind the session
semaphore; otherwise the active run can finish before the query reaches
ChatMessageHandler.try_claim_steering_from_query.
"""
try:
pipeline_uuid = query.pipeline_uuid
if not pipeline_uuid:
return False
pipeline = await self.ap.pipeline_mgr.get_pipeline_by_uuid(pipeline_uuid)
if not pipeline:
return False
session = await self.ap.sess_mgr.get_session(query)
query.session = session
query.pipeline_config = pipeline.pipeline_entity.config
query.variables['_pipeline_bound_plugins'] = pipeline.bound_plugins
query.variables['_pipeline_bound_mcp_servers'] = pipeline.bound_mcp_servers
return await self.ap.agent_run_orchestrator.try_claim_steering_from_query(query)
except Exception as exc:
self.ap.logger.warning(
f'Failed to claim query {query.query_id} as steering input: {exc}',
exc_info=True,
)
return False
async def consumer(self):
"""事件处理循环"""
try:
while True:
selected_query: pipeline_query.Query = None
claimed_steering_query: pipeline_query.Query = None
# 取请求
async with self.ap.query_pool:
@@ -36,6 +70,13 @@ class Controller:
# Debug logging removed from tight loop to prevent excessive log generation
# that can cause memory overflow in high-traffic scenarios
if session._semaphore.locked():
if await self._try_claim_steering_before_session_slot(query):
claimed_steering_query = query
self.ap.logger.debug(f'Claimed query {query.query_id} as steering before session slot')
break
continue
if not session._semaphore.locked():
selected_query = query
await session._semaphore.acquire()
@@ -44,7 +85,12 @@ class Controller:
break
if selected_query: # 找到了
if claimed_steering_query:
queries.remove(claimed_steering_query)
self.ap.query_pool.cached_queries.pop(claimed_steering_query.query_id, None)
self.ap.query_pool.condition.notify_all()
continue
elif selected_query: # 找到了
queries.remove(selected_query)
else: # 没找到 说明:没有请求 或者 所有query对应的session都已达到并发上限
await self.ap.query_pool.condition.wait()
@@ -1,35 +0,0 @@
from __future__ import annotations
from .. import stage, entities
from . import truncator
from ...utils import importutil
import langbot_plugin.api.entities.builtin.pipeline.query as pipeline_query
from . import truncators
importutil.import_modules_in_pkg(truncators)
@stage.stage_class('ConversationMessageTruncator')
class ConversationMessageTruncator(stage.PipelineStage):
"""Conversation message truncator
Used to truncate the conversation message chain to adapt to the LLM message length limit.
"""
trun: truncator.Truncator
async def initialize(self, pipeline_config: dict):
use_method = 'round'
for trun in truncator.preregistered_truncators:
if trun.name == use_method:
self.trun = trun(self.ap)
break
else:
raise ValueError(f'Unknown truncator: {use_method}')
async def process(self, query: pipeline_query.Query, stage_inst_name: str) -> entities.StageProcessResult:
"""处理"""
query = await self.trun.truncate(query)
return entities.StageProcessResult(result_type=entities.ResultType.CONTINUE, new_query=query)
@@ -1,56 +0,0 @@
from __future__ import annotations
import typing
import abc
from ...core import app
import langbot_plugin.api.entities.builtin.pipeline.query as pipeline_query
preregistered_truncators: list[typing.Type[Truncator]] = []
def truncator_class(
name: str,
) -> typing.Callable[[typing.Type[Truncator]], typing.Type[Truncator]]:
"""截断器类装饰器
Args:
name (str): 截断器名称
Returns:
typing.Callable[[typing.Type[Truncator]], typing.Type[Truncator]]: 装饰器
"""
def decorator(cls: typing.Type[Truncator]) -> typing.Type[Truncator]:
assert issubclass(cls, Truncator)
cls.name = name
preregistered_truncators.append(cls)
return cls
return decorator
class Truncator(abc.ABC):
"""消息截断器基类"""
name: str
ap: app.Application
def __init__(self, ap: app.Application):
self.ap = ap
async def initialize(self):
pass
@abc.abstractmethod
async def truncate(self, query: pipeline_query.Query) -> pipeline_query.Query:
"""截断
一般只需要操作query.messages也可以扩展操作query.prompt, query.user_message
请勿操作其他字段
"""
pass
@@ -1,30 +0,0 @@
from __future__ import annotations
from .. import truncator
import langbot_plugin.api.entities.builtin.pipeline.query as pipeline_query
@truncator.truncator_class('round')
class RoundTruncator(truncator.Truncator):
"""Truncate the conversation message chain to adapt to the LLM message length limit."""
async def truncate(self, query: pipeline_query.Query) -> pipeline_query.Query:
"""截断"""
max_round = query.pipeline_config['ai']['local-agent']['max-round']
temp_messages = []
current_round = 0
# Traverse from back to front
for msg in query.messages[::-1]:
if current_round < max_round:
temp_messages.append(msg)
if msg.role == 'user':
current_round += 1
else:
break
query.messages = temp_messages[::-1]
return query
+7 -4
View File
@@ -28,7 +28,6 @@ from . import (
wrapper,
preproc,
ratelimit,
msgtrun,
)
importutil.import_modules_in_pkgs(
@@ -42,7 +41,6 @@ importutil.import_modules_in_pkgs(
wrapper,
preproc,
ratelimit,
msgtrun,
]
)
@@ -278,8 +276,10 @@ class RuntimePipeline:
# Get runner name from pipeline config
runner_name = None
if query.pipeline_config and 'ai' in query.pipeline_config and 'runner' in query.pipeline_config['ai']:
runner_name = query.pipeline_config['ai']['runner'].get('runner')
if query.pipeline_config:
from ..agent.runner.config_migration import ConfigMigration
runner_name = ConfigMigration.resolve_runner_id(query.pipeline_config)
# Record query start and store message_id
message_id = ''
@@ -438,6 +438,9 @@ class PipelineManager:
# initialize stage containers according to pipeline_entity.stages
stage_containers: list[StageInstContainer] = []
for stage_name in pipeline_entity.stages:
if stage_name not in self.stage_dict:
self.ap.logger.warning(f'Pipeline stage {stage_name} is not registered; skipping')
continue
stage_containers.append(StageInstContainer(inst_name=stage_name, inst=self.stage_dict[stage_name](self.ap)))
for stage_container in stage_containers:
+189 -124
View File
@@ -1,6 +1,7 @@
from __future__ import annotations
import datetime
import typing
from .. import stage, entities
from langbot_plugin.api.entities.builtin.provider import message as provider_message
@@ -9,6 +10,15 @@ import langbot_plugin.api.entities.builtin.platform.message as platform_message
import langbot_plugin.api.entities.builtin.pipeline.query as pipeline_query
import langbot_plugin.api.entities.builtin.platform.events as platform_events
from ...agent.runner.descriptor import AgentRunnerDescriptor
from ...agent.runner.config_migration import ConfigMigration
from ...agent.runner import config_schema
DEFAULT_PROMPT_CONFIG = [
{'role': 'system', 'content': 'You are a helpful assistant.'},
]
@stage.stage_class('PreProcessor')
class PreProcessor(stage.PipelineStage):
@@ -25,55 +35,166 @@ class PreProcessor(stage.PipelineStage):
- use_funcs
"""
async def _get_runner_descriptor(
self,
runner_id: str | None,
bound_plugins: list[str] | None,
) -> AgentRunnerDescriptor | None:
if not runner_id:
return None
registry = getattr(self.ap, 'agent_runner_registry', None)
if registry is None:
return None
try:
return await registry.get(runner_id, bound_plugins)
except Exception as e:
self.ap.logger.debug(f'Unable to load AgentRunner descriptor for {runner_id}: {e}')
return None
async def _resolve_llm_model(
self,
primary_uuid: str,
) -> typing.Any | None:
if primary_uuid in config_schema.NONE_SENTINELS:
return None
try:
return await self.ap.model_mgr.get_model_by_uuid(primary_uuid)
except ValueError:
self.ap.logger.warning(f'LLM model {primary_uuid} not found or not configured')
return None
async def _resolve_fallback_models(self, fallback_uuids: list[str]) -> list[str]:
valid_fallbacks = []
for fallback_uuid in fallback_uuids:
if fallback_uuid in config_schema.NONE_SENTINELS:
continue
try:
await self.ap.model_mgr.get_model_by_uuid(fallback_uuid)
valid_fallbacks.append(fallback_uuid)
except ValueError:
self.ap.logger.warning(f'Fallback model {fallback_uuid} not found, skipping')
return valid_fallbacks
def _runner_accepts_multimodal_input(self, descriptor: AgentRunnerDescriptor | None) -> bool:
if descriptor is None:
return True
return descriptor.capabilities.multimodal_input
def _model_supports_vision(self, llm_model: typing.Any | None) -> bool:
if not llm_model:
return False
abilities = getattr(getattr(llm_model, 'model_entity', None), 'abilities', [])
return 'vision' in (abilities or [])
def _should_keep_image_inputs(
self,
descriptor: AgentRunnerDescriptor | None,
uses_host_models: bool,
llm_model: typing.Any | None,
) -> bool:
if not self._runner_accepts_multimodal_input(descriptor):
return False
if uses_host_models:
return self._model_supports_vision(llm_model)
return True
def _strip_images_from_history(self, query: pipeline_query.Query) -> None:
for msg in query.messages:
if isinstance(msg.content, list):
msg.content = [elem for elem in msg.content if elem.type != 'image_url']
def _has_declared_db_engine(self) -> bool:
persistence_mgr = getattr(self.ap, 'persistence_mgr', None)
if persistence_mgr is None:
return False
if 'get_db_engine' in getattr(persistence_mgr, '__dict__', {}):
return True
return hasattr(type(persistence_mgr), 'get_db_engine')
async def _load_agent_runner_history_messages(
self,
runner_id: str | None,
conversation_uuid: str | None,
bot_id: str | None = None,
workspace_id: str | None = None,
thread_id: str | None = None,
) -> list[provider_message.Message] | None:
if not runner_id or not conversation_uuid or not self._has_declared_db_engine():
return None
try:
from ...agent.runner.transcript_store import TranscriptStore
store = TranscriptStore(self.ap.persistence_mgr.get_db_engine())
messages = await store.get_legacy_provider_messages(
str(conversation_uuid),
bot_id=bot_id,
workspace_id=workspace_id,
thread_id=thread_id,
strict_thread=True,
)
except Exception as e:
self.ap.logger.warning(
f'Unable to load Transcript history view for conversation {conversation_uuid}: {e}'
)
return None
return messages or None
async def _resolve_history_messages(
self,
runner_id: str | None,
conversation: typing.Any,
bot_id: str | None = None,
workspace_id: str | None = None,
) -> list[provider_message.Message]:
transcript_messages = await self._load_agent_runner_history_messages(
runner_id,
getattr(conversation, 'uuid', None),
bot_id=bot_id,
workspace_id=workspace_id,
thread_id=getattr(conversation, 'thread_id', None),
)
if transcript_messages is not None:
return transcript_messages
return conversation.messages.copy()
async def process(
self,
query: pipeline_query.Query,
stage_inst_name: str,
) -> entities.StageProcessResult:
"""Process"""
selected_runner = query.pipeline_config['ai']['runner']['runner']
include_skill_authoring = (
selected_runner == 'local-agent' and getattr(self.ap, 'skill_service', None) is not None
)
# Resolve runner ID from the current ai.runner.id shape.
runner_id = ConfigMigration.resolve_runner_id(query.pipeline_config)
# Get runner config from ai.runner_config[runner_id].
runner_config = ConfigMigration.resolve_runner_config(query.pipeline_config, runner_id) if runner_id else {}
query.variables = query.variables or {}
bound_plugins = query.variables.get('_pipeline_bound_plugins', None)
bound_mcp_servers = query.variables.get('_pipeline_bound_mcp_servers', None)
descriptor = await self._get_runner_descriptor(runner_id, bound_plugins)
session = await self.ap.sess_mgr.get_session(query)
# When not local-agent, llm_model is None
uses_host_models = config_schema.uses_host_models(descriptor)
uses_host_tools = config_schema.uses_host_tools(descriptor)
llm_model = None
if selected_runner == 'local-agent':
# Read model config — new format is { primary: str, fallbacks: [str] },
# but handle legacy plain string for backward compatibility
model_config = query.pipeline_config['ai']['local-agent'].get('model', {})
if isinstance(model_config, str):
# Legacy format: plain UUID string
primary_uuid = model_config
fallback_uuids = []
else:
primary_uuid = model_config.get('primary', '')
fallback_uuids = model_config.get('fallbacks', [])
if uses_host_models:
primary_uuid, fallback_uuids = config_schema.extract_model_selection(descriptor, runner_config)
llm_model = await self._resolve_llm_model(primary_uuid)
valid_fallbacks = await self._resolve_fallback_models(fallback_uuids)
if valid_fallbacks:
query.variables['_fallback_model_uuids'] = valid_fallbacks
if primary_uuid:
try:
llm_model = await self.ap.model_mgr.get_model_by_uuid(primary_uuid)
except ValueError:
self.ap.logger.warning(f'LLM model {primary_uuid} not found or not configured')
# Resolve fallback model UUIDs
if fallback_uuids:
valid_fallbacks = []
for fb_uuid in fallback_uuids:
try:
await self.ap.model_mgr.get_model_by_uuid(fb_uuid)
valid_fallbacks.append(fb_uuid)
except ValueError:
self.ap.logger.warning(f'Fallback model {fb_uuid} not found, skipping')
if valid_fallbacks:
query.variables['_fallback_model_uuids'] = valid_fallbacks
prompt_config = config_schema.extract_prompt_config(descriptor, runner_config, DEFAULT_PROMPT_CONFIG)
conversation = await self.ap.sess_mgr.get_conversation(
query,
session,
query.pipeline_config['ai']['local-agent']['prompt'],
prompt_config,
query.pipeline_uuid,
query.bot_uuid,
)
@@ -82,7 +203,7 @@ class PreProcessor(stage.PipelineStage):
# been idle for longer than the configured conversation expire time.
# The idle window is measured from the last preprocess/update time, not
# from the conversation creation time.
conversation_expire_time = query.pipeline_config.get('ai', {}).get('runner', {}).get('expire-time', None)
conversation_expire_time = ConfigMigration.get_expire_time(query.pipeline_config)
now = datetime.datetime.now()
if conversation_expire_time is not None and conversation_expire_time > 0:
last_update_time = getattr(conversation, 'update_time', None) or getattr(conversation, 'create_time', None)
@@ -99,24 +220,24 @@ class PreProcessor(stage.PipelineStage):
# time instead of the first message/creation time.
conversation.update_time = now
# 设置query
# Attach resolved session state to the query.
query.session = session
query.prompt = conversation.prompt.copy()
query.messages = conversation.messages.copy()
query.messages = await self._resolve_history_messages(
runner_id,
conversation,
bot_id=query.bot_uuid,
)
if selected_runner == 'local-agent':
if uses_host_models:
query.use_funcs = []
if llm_model:
query.use_llm_model_uuid = llm_model.model_entity.uuid
if 'func_call' in (llm_model.model_entity.abilities or []):
# Get bound plugins and MCP servers for filtering tools
bound_plugins = query.variables.get('_pipeline_bound_plugins', None)
bound_mcp_servers = query.variables.get('_pipeline_bound_mcp_servers', None)
if uses_host_tools and 'func_call' in (llm_model.model_entity.abilities or []):
query.use_funcs = await self.ap.tool_mgr.get_all_tools(
bound_plugins,
bound_mcp_servers,
include_skill_authoring=include_skill_authoring,
)
self.ap.logger.debug(f'Bound plugins: {bound_plugins}')
@@ -125,14 +246,20 @@ class PreProcessor(stage.PipelineStage):
# If primary model doesn't support func_call but fallback models exist,
# load tools anyway since fallback models may support them
if not query.use_funcs and query.variables.get('_fallback_model_uuids'):
bound_plugins = query.variables.get('_pipeline_bound_plugins', None)
bound_mcp_servers = query.variables.get('_pipeline_bound_mcp_servers', None)
if uses_host_tools and not query.use_funcs and query.variables.get('_fallback_model_uuids'):
query.use_funcs = await self.ap.tool_mgr.get_all_tools(
bound_plugins,
bound_mcp_servers,
include_skill_authoring=include_skill_authoring,
)
elif uses_host_tools:
query.use_funcs = await self.ap.tool_mgr.get_all_tools(
bound_plugins,
bound_mcp_servers,
)
self.ap.logger.debug(f'Bound plugins: {bound_plugins}')
self.ap.logger.debug(f'Bound MCP servers: {bound_mcp_servers}')
self.ap.logger.debug(f'Use funcs: {query.use_funcs}')
sender_name = ''
@@ -157,32 +284,25 @@ class PreProcessor(stage.PipelineStage):
}
query.variables.update(variables)
# Check if this model supports vision, if not, remove all images
# TODO this checking should be performed in runner, and in this stage, the image should be reserved
if selected_runner == 'local-agent' and llm_model and 'vision' not in (llm_model.model_entity.abilities or []):
for msg in query.messages:
if isinstance(msg.content, list):
for me in msg.content:
if me.type == 'image_url':
msg.content.remove(me)
keep_image_inputs = self._should_keep_image_inputs(descriptor, uses_host_models, llm_model)
if not keep_image_inputs:
self._strip_images_from_history(query)
content_list: list[provider_message.ContentElement] = []
plain_text = ''
quote_msg = query.pipeline_config['trigger'].get('misc', '').get('combine-quote-message')
quote_msg = query.pipeline_config['trigger'].get('misc', {}).get('combine-quote-message', False)
for me in query.message_chain:
if isinstance(me, platform_message.Plain):
content_list.append(provider_message.ContentElement.from_text(me.text))
plain_text += me.text
elif isinstance(me, platform_message.Image):
if selected_runner != 'local-agent' or (
llm_model and 'vision' in (llm_model.model_entity.abilities or [])
):
if keep_image_inputs:
if me.base64 is not None:
content_list.append(provider_message.ContentElement.from_image_base64(me.base64))
elif isinstance(me, platform_message.Voice):
# 转成文件链接,让下游 runner 上传到目标模型
# Convert voice input into file content for downstream model upload.
if me.base64:
content_list.append(provider_message.ContentElement.from_file_base64(me.base64, 'voice.silk'))
elif me.url:
@@ -197,9 +317,7 @@ class PreProcessor(stage.PipelineStage):
if isinstance(msg, platform_message.Plain):
content_list.append(provider_message.ContentElement.from_text(msg.text))
elif isinstance(msg, platform_message.Image):
if selected_runner != 'local-agent' or (
llm_model and 'vision' in (llm_model.model_entity.abilities or [])
):
if keep_image_inputs:
if msg.base64 is not None:
content_list.append(provider_message.ContentElement.from_image_base64(msg.base64))
elif isinstance(msg, platform_message.File):
@@ -219,16 +337,14 @@ class PreProcessor(stage.PipelineStage):
query.user_message = provider_message.Message(role='user', content=content_list)
# Extract knowledge base UUIDs into query variables so plugins can modify them
# during PromptPreProcessing before the runner performs retrieval.
kb_uuids = query.pipeline_config['ai']['local-agent'].get('knowledge-bases', [])
if not kb_uuids:
old_kb_uuid = query.pipeline_config['ai']['local-agent'].get('knowledge-base', '')
if old_kb_uuid and old_kb_uuid != '__none__':
kb_uuids = [old_kb_uuid]
query.variables['_knowledge_base_uuids'] = list(kb_uuids)
# Extract configured KB UUIDs into query variables so PromptPreProcessing
# plugins can still adjust the authorized retrieval set before run_agent.
query.variables['_knowledge_base_uuids'] = config_schema.extract_knowledge_base_uuids(
descriptor,
runner_config,
)
# =========== 触发事件 PromptPreProcessing
# Emit PromptPreProcessing before the runner receives the query.
event = events.PromptPreProcessing(
session_name=f'{query.session.launcher_type.value}_{query.session.launcher_id}',
@@ -244,19 +360,7 @@ class PreProcessor(stage.PipelineStage):
query.prompt.messages = event_ctx.event.default_prompt
query.messages = event_ctx.event.prompt
# =========== Skill awareness for the local-agent runner ===========
# The actual activation goes through the ``activate`` Tool Call so the
# LLM doesn't see full SKILL.md instructions until it commits to a
# skill (Claude Code's progressive disclosure). But the LLM still has
# to KNOW which skills exist to make that choice, so we:
# 1. resolve the pipeline's bound skills and stash them in
# ``query.variables['_pipeline_bound_skills']`` for downstream
# visibility checks (skill loader, native exec workdir);
# 2. inject a short ``Available Skills`` index (name + description
# only) into the system prompt. The contributor's original PR
# relied on this injection; without it the LLM never discovers
# the skills are there and just calls native tools instead.
if selected_runner == 'local-agent' and self.ap.skill_mgr:
if getattr(self.ap, 'skill_mgr', None) is not None:
pipeline_data = await self.ap.pipeline_service.get_pipeline(query.pipeline_uuid)
extensions_prefs = (pipeline_data or {}).get('extensions_preferences', {})
enable_all_skills = extensions_prefs.get('enable_all_skills', True)
@@ -268,43 +372,4 @@ class PreProcessor(stage.PipelineStage):
query.variables['_pipeline_bound_skills'] = bound_skills
skill_addition = self.ap.skill_mgr.build_skill_aware_prompt_addition(
bound_skills=bound_skills,
)
if skill_addition:
# Append to the first system message; create one if the
# prompt has none. Handles both plain-string and
# content-element (list) message bodies.
if query.prompt.messages and query.prompt.messages[0].role == 'system':
head = query.prompt.messages[0]
if isinstance(head.content, str):
head.content = head.content + skill_addition
elif isinstance(head.content, list):
appended = False
for ce in head.content:
if getattr(ce, 'type', None) == 'text':
ce.text = (ce.text or '') + skill_addition
appended = True
break
if not appended:
head.content.append(provider_message.ContentElement(type='text', text=skill_addition))
else:
query.prompt.messages.insert(
0,
provider_message.Message(role='system', content=skill_addition.strip()),
)
self.ap.logger.debug(
f'Skill index injected into system prompt: '
f'pipeline={query.pipeline_uuid} '
f'bound_skills={bound_skills or "all"} '
f'loaded_skills={len(self.ap.skill_mgr.skills)}'
)
else:
self.ap.logger.debug(
f'No skills available for prompt injection: '
f'pipeline={query.pipeline_uuid} '
f'loaded_skills={len(self.ap.skill_mgr.skills)} '
f'bound_skills={bound_skills}'
)
return entities.StageProcessResult(result_type=entities.ResultType.CONTINUE, new_query=query)
+163 -71
View File
@@ -9,30 +9,36 @@ from datetime import datetime
from .. import handler
from ... import entities
from ....provider import runner as runner_module
import langbot_plugin.api.entities.events as events
from ....utils import importutil, constants, runner as runner_utils
from ....agent.runner.config_migration import ConfigMigration
from ....agent.runner import config_schema
from ....utils import constants, runner as runner_utils
from ....telemetry import features as telemetry_features
from ....provider import runners
import langbot_plugin.api.entities.builtin.provider.session as provider_session
import langbot_plugin.api.entities.builtin.pipeline.query as pipeline_query
import langbot_plugin.api.entities.builtin.provider.message as provider_message
importutil.import_modules_in_pkg(runners)
DEFAULT_PROMPT_CONFIG = [
{'role': 'system', 'content': 'You are a helpful assistant.'},
]
class ChatMessageHandler(handler.MessageHandler):
"""Chat message handler using AgentRunOrchestrator.
This handler delegates all runner execution to the agent_run_orchestrator,
which resolves runner ID, builds context, invokes plugin runtime,
and normalizes results.
"""
async def handle(
self,
query: pipeline_query.Query,
) -> typing.AsyncGenerator[entities.StageProcessResult, None]:
"""处理"""
# 调API
# 生成器
# 触发插件事件
"""Handle chat message by delegating to AgentRunOrchestrator."""
# Trigger plugin event
event_class = (
events.PersonNormalMessageReceived
if query.launcher_type == provider_session.LauncherTypes.PERSON
@@ -53,7 +59,7 @@ class ChatMessageHandler(handler.MessageHandler):
bound_plugins = query.variables.get('_pipeline_bound_plugins', None)
event_ctx = await self.ap.plugin_connector.emit_event(event, bound_plugins)
is_create_card = False # 判断下是否需要创建流式卡片
is_create_card = False # Track if streaming card was created
if event_ctx.is_prevented_default():
if event_ctx.event.reply_message_chain is not None:
@@ -79,40 +85,51 @@ class ChatMessageHandler(handler.MessageHandler):
text_length = 0
try:
is_stream = await query.adapter.is_stream_output_supported()
except AttributeError:
is_stream = False
try:
for r in runner_module.preregistered_runners:
if r.name == query.pipeline_config['ai']['runner']['runner']:
runner = r(self.ap, query.pipeline_config)
break
else:
raise ValueError(f'Request Runner not found: {query.pipeline_config["ai"]["runner"]["runner"]}')
# Mark start time for telemetry
start_ts = time.time()
if is_stream:
resp_message_id = uuid.uuid4()
chunk_count = 0 # Track streaming chunks to reduce excessive logging
try_claim_steering = getattr(
self.ap.agent_run_orchestrator,
'try_claim_steering_from_query',
None,
)
if try_claim_steering and await try_claim_steering(query):
yield entities.StageProcessResult(result_type=entities.ResultType.INTERRUPT, new_query=query)
return
async for result in runner.run(query):
result.resp_message_id = str(resp_message_id)
try:
is_stream = await query.adapter.is_stream_output_supported()
except AttributeError:
is_stream = False
# Create a single resp_message_id for the entire streaming response
resp_message_id = uuid.uuid4()
chunk_count = 0
# Use AgentRunOrchestrator to run the agent
# This replaces direct runner lookup and PluginAgentRunnerWrapper
async for result in self.ap.agent_run_orchestrator.run_from_query(query):
result.resp_message_id = str(resp_message_id)
# For streaming mode, pop previous response before adding new chunk
# This allows incremental card updates
if is_stream:
if query.resp_messages:
query.resp_messages.pop()
if query.resp_message_chain:
query.resp_message_chain.pop()
# 此时连接外部 AI 服务正常,创建卡片
if not is_create_card: # 只有不是第一次才创建卡片
# Create streaming card on first result (connection established)
if not is_create_card:
await query.adapter.create_message_card(str(resp_message_id), query.message_event)
is_create_card = True
query.resp_messages.append(result)
query.resp_messages.append(result)
if is_stream:
chunk_count += 1
# Only log every 10th chunk to reduce excessive logging during streaming
# This prevents memory overflow from thousands of log entries per conversation
# First chunk uses INFO level to confirm connection establishment
# Only log every 10th chunk to reduce excessive logging during streaming.
# First chunk uses INFO level to confirm connection establishment.
if chunk_count == 1:
summary = self.format_result_log(result)
if summary is not None:
@@ -123,46 +140,59 @@ class ChatMessageHandler(handler.MessageHandler):
self.ap.logger.debug(
f'Conversation({query.query_id}) Streaming chunk {chunk_count}: {self.cut_str(result.readable_str())}'
)
if result.content is not None:
text_length += len(result.content)
yield entities.StageProcessResult(result_type=entities.ResultType.CONTINUE, new_query=query)
# Log final summary after streaming completes
self.ap.logger.info(
f'Conversation({query.query_id}) Streaming completed: {chunk_count} chunks, {text_length} chars'
)
else:
async for result in runner.run(query):
query.resp_messages.append(result)
else:
summary = self.format_result_log(result)
if summary is not None:
self.ap.logger.info(f'Conversation({query.query_id}) Response: {summary}')
if result.content is not None:
text_length += len(result.content)
if result.content is not None:
text_length += len(result.content)
yield entities.StageProcessResult(result_type=entities.ResultType.CONTINUE, new_query=query)
yield entities.StageProcessResult(result_type=entities.ResultType.CONTINUE, new_query=query)
query.session.using_conversation.messages.append(query.user_message)
# Log final summary after streaming completes
if is_stream:
self.ap.logger.info(
f'Conversation({query.query_id}) Streaming completed: {chunk_count} chunks, {text_length} chars'
)
# Keep a conversation object available for downstream legacy
# readers, but do not mirror AgentRunner history into
# conversation.messages. TranscriptStore is the canonical
# history source for this path.
await self._ensure_conversation_for_history(query)
query.session.using_conversation.messages.extend(query.resp_messages)
except Exception as e:
# Import orchestrator errors for specific handling
from ....agent.runner.errors import (
RunnerNotFoundError,
RunnerNotAuthorizedError,
RunnerExecutionError,
)
error_info = f'{traceback.format_exc()}'
self.ap.logger.error(f'Conversation({query.query_id}) Request Failed: {error_info}')
traceback.print_exc()
exception_handling = query.pipeline_config['output']['misc'].get('exception-handling', 'show-hint')
# Handle specific runner errors with appropriate messages
if isinstance(e, RunnerNotFoundError):
user_notice = f'Agent runner not found: {e.runner_id}'
elif isinstance(e, RunnerNotAuthorizedError):
user_notice = 'Agent runner not authorized for this pipeline'
elif isinstance(e, RunnerExecutionError):
if e.retryable:
user_notice = 'Agent runner temporarily unavailable. Please try again.'
else:
user_notice = 'Agent runner execution failed.'
else:
# Use existing exception handling
exception_handling = query.pipeline_config['output']['misc'].get('exception-handling', 'show-hint')
if exception_handling == 'show-error':
user_notice = f'{e}'
elif exception_handling == 'show-hint':
user_notice = query.pipeline_config['output']['misc'].get('failure-hint', 'Request failed.')
else: # hide
user_notice = None
if exception_handling == 'show-error':
user_notice = f'{e}'
elif exception_handling == 'show-hint':
user_notice = query.pipeline_config['output']['misc'].get('failure-hint', 'Request failed.')
else: # hide
user_notice = None
yield entities.StageProcessResult(
result_type=entities.ResultType.INTERRUPT,
@@ -172,7 +202,7 @@ class ChatMessageHandler(handler.MessageHandler):
debug_notice=traceback.format_exc(),
)
finally:
# Telemetry reporting: collect minimal per-query execution info and send asynchronously
# Telemetry reporting
try:
end_ts = time.time()
duration_ms = None
@@ -180,16 +210,14 @@ class ChatMessageHandler(handler.MessageHandler):
duration_ms = int((end_ts - start_ts) * 1000)
adapter_name = query.adapter.__class__.__name__ if hasattr(query, 'adapter') else None
runner_name = (
query.pipeline_config.get('ai', {}).get('runner', {}).get('runner')
if query.pipeline_config
else None
)
# Model name if using localagent
# Use orchestrator to resolve runner ID for telemetry
runner_name = self.ap.agent_run_orchestrator.resolve_runner_id_for_telemetry(query)
# Model name if available
model_name = None
try:
if runner_name == 'local-agent' and getattr(query, 'use_llm_model_uuid', None):
if getattr(query, 'use_llm_model_uuid', None):
m = await self.ap.model_mgr.get_model_by_uuid(query.use_llm_model_uuid)
if m and getattr(m, 'model_entity', None):
model_name = getattr(m.model_entity, 'name', None)
@@ -199,7 +227,7 @@ class ChatMessageHandler(handler.MessageHandler):
pipeline_plugins = query.variables.get('_pipeline_bound_plugins', None)
runner_category = runner_utils.get_runner_category_from_runner(
runner_name, runner, query.pipeline_config
runner_name, None, query.pipeline_config
)
# Feature usage collected during query processing (tool calls,
@@ -223,7 +251,6 @@ class ChatMessageHandler(handler.MessageHandler):
'timestamp': datetime.utcnow().isoformat(),
}
# Send telemetry asynchronously and do not block pipeline via app's telemetry manager
await self.ap.telemetry.start_send_task(payload)
# Trigger survey events on successful non-WebSocket responses
@@ -233,5 +260,70 @@ class ChatMessageHandler(handler.MessageHandler):
# Counts toward the bot_response_success_100 milestone event
await self.ap.survey.record_bot_response_success()
except Exception as ex:
# Ensure telemetry issues do not affect normal flow
self.ap.logger.warning(f'Failed to send telemetry: {ex}')
async def _ensure_conversation_for_history(
self,
query: pipeline_query.Query,
) -> provider_session.Conversation:
session = getattr(query, 'session', None)
conversation = getattr(session, 'using_conversation', None)
if conversation is not None:
return conversation
if session is None or getattr(self.ap, 'sess_mgr', None) is None:
raise RuntimeError('Conversation is not available for history update')
prompt_config = await self._build_history_prompt_config(query)
conversation = await self.ap.sess_mgr.get_conversation(
query,
session,
prompt_config,
query.pipeline_uuid,
query.bot_uuid,
)
if conversation is None:
raise RuntimeError('Conversation manager did not return a conversation')
if getattr(session, 'using_conversation', None) is None:
session.using_conversation = conversation
return conversation
async def _build_history_prompt_config(
self,
query: pipeline_query.Query,
) -> list[dict[str, typing.Any]]:
prompt_messages = getattr(getattr(query, 'prompt', None), 'messages', None)
if prompt_messages:
prompt_config = []
for message in prompt_messages:
if hasattr(message, 'model_dump'):
prompt_config.append(message.model_dump(mode='python'))
elif isinstance(message, dict):
prompt_config.append(message)
if prompt_config:
return prompt_config
runner_id = ConfigMigration.resolve_runner_id(query.pipeline_config)
runner_config = ConfigMigration.resolve_runner_config(query.pipeline_config, runner_id) if runner_id else {}
bound_plugins = query.variables.get('_pipeline_bound_plugins', None)
descriptor = await self._get_runner_descriptor(runner_id, bound_plugins)
return config_schema.extract_prompt_config(descriptor, runner_config, DEFAULT_PROMPT_CONFIG)
async def _get_runner_descriptor(
self,
runner_id: str | None,
bound_plugins: list[str] | None,
) -> typing.Any | None:
if not runner_id:
return None
registry = getattr(self.ap, 'agent_runner_registry', None)
if registry is None:
return None
try:
return await registry.get(runner_id, bound_plugins)
except Exception as e:
self.ap.logger.debug(f'Unable to load AgentRunner descriptor for {runner_id}: {e}')
return None
@@ -1,509 +0,0 @@
"""HTTP Bot adapter — standalone server-to-server platform adapter.
Lets any external backend drive a LangBot pipeline over plain HTTP:
* **Inbound** the backend POSTs a signed message to the unified webhook
route ``POST /bots/<bot_uuid>``; this adapter verifies the signature, builds
a platform event carrying the caller-defined ``session_id`` as the launcher
id, and fires it into the normal pipeline (so message aggregation, N->1,
works for free).
* **Outbound** every ``reply_message`` / ``reply_message_chunk`` the pipeline
emits is delivered as a signed POST to the configured ``callback_url``. A
single turn may emit many replies (1->M); each is one callback, ordered per
session via a small worker queue.
Design notes:
* The callback URL is taken **only** from adapter config (never from the
inbound message) to keep the SSRF surface closed.
* Replies for one ``session_id`` are delivered in ``sequence`` order; the
caller knows a turn is complete when ``is_final: true`` arrives.
* No new HTTP route is registered the existing unified webhook dispatcher
(``pkg/api/http/controller/groups/webhooks.py``) calls
``handle_unified_webhook`` on this adapter.
See docs/platforms/http-bot.md for the full integration guide.
"""
from __future__ import annotations
import asyncio
import json
import time
import typing
import uuid
from datetime import datetime
import aiohttp
import pydantic
import quart
import langbot_plugin.api.definition.abstract.platform.adapter as abstract_platform_adapter
import langbot_plugin.api.entities.builtin.platform.message as platform_message
import langbot_plugin.api.entities.builtin.platform.events as platform_events
import langbot_plugin.api.entities.builtin.platform.entities as platform_entities
import langbot_plugin.api.definition.abstract.platform.event_logger as abstract_platform_logger
from . import http_bot_signing as signing
from ...utils import httpclient
# Error envelope codes (HTTP status -> body code), documented in the design doc.
_ERR = {
'bad_request': (400, 40001),
'bad_signature': (401, 40101),
'duplicate': (409, 40901),
'too_large': (413, 41301),
'internal': (500, 50001),
}
# Max accepted inbound body size (bytes).
_MAX_BODY = 1 * 1024 * 1024
# Idempotency dedup window (seconds) and cap.
_IDEMPOTENCY_TTL = 600
_IDEMPOTENCY_MAX = 4096
class _SessionOutbound:
"""Per-session outbound state: ordered delivery queue + sequence counter."""
def __init__(self) -> None:
self.queue: asyncio.Queue = asyncio.Queue(maxsize=1000)
self.worker: asyncio.Task | None = None
self.sequence: int = 0
self.last_was_final: bool = True # so the first reply of a turn starts at seq 1
class _SyncCollector:
"""Collects reply parts for a /sync request and resolves when the turn ends."""
def __init__(self) -> None:
self.parts: list = []
self.done: asyncio.Event = asyncio.Event()
class HttpBotAdapter(abstract_platform_adapter.AbstractMessagePlatformAdapter):
"""Standalone HTTP adapter (inbound webhook + outbound callbacks)."""
bot_uuid: str = pydantic.Field(default='', exclude=True)
listeners: dict[
typing.Type[platform_events.Event],
typing.Callable[[platform_events.Event, abstract_platform_adapter.AbstractMessagePlatformAdapter], None],
] = pydantic.Field(default_factory=dict, exclude=True)
# session_id -> outbound state
outbound_states: dict[str, _SessionOutbound] = pydantic.Field(default_factory=dict, exclude=True)
# idempotency key -> accepted-at epoch
idempotency_cache: dict[str, float] = pydantic.Field(default_factory=dict, exclude=True)
# session_id -> sync collector (set while a /sync request is awaiting a turn)
sync_waiters: dict[str, '_SyncCollector'] = pydantic.Field(default_factory=dict, exclude=True)
model_config = pydantic.ConfigDict(arbitrary_types_allowed=True)
def __init__(self, config: dict, logger: abstract_platform_logger.AbstractEventLogger, **kwargs):
super().__init__(config=config, logger=logger, **kwargs)
self.bot_account_id = 'http_bot'
self.outbound_states = {}
self.idempotency_cache = {}
self.sync_waiters = {}
# -- framework hooks ------------------------------------------------------
def set_bot_uuid(self, bot_uuid: str) -> None:
"""Called by the bot manager so the adapter knows its own bot uuid."""
object.__setattr__(self, 'bot_uuid', bot_uuid)
def get_launcher_id(self, event: platform_events.MessageEvent) -> str:
"""Map an inbound event to a LangBot launcher id.
We return the caller-defined ``session_id`` (stashed on the sender /
group id at inbound time) so that each external session maps 1:1 to an
isolated LangBot session.
"""
if isinstance(event, platform_events.GroupMessage):
return str(event.sender.group.id)
return str(event.sender.id)
def register_listener(
self,
event_type: typing.Type[platform_events.Event],
func: typing.Callable[
[platform_events.Event, abstract_platform_adapter.AbstractMessagePlatformAdapter], typing.Awaitable[None]
],
):
self.listeners[event_type] = func
def unregister_listener(
self,
event_type: typing.Type[platform_events.Event],
func: typing.Callable[
[platform_events.Event, abstract_platform_adapter.AbstractMessagePlatformAdapter], typing.Awaitable[None]
],
):
self.listeners.pop(event_type, None)
async def is_muted(self, group_id: int) -> bool:
return False
async def is_stream_output_supported(self) -> bool:
return True
async def run_async(self):
# Purely webhook-driven; nothing to poll. Stay alive.
while True:
await asyncio.sleep(3600)
async def kill(self):
# Cancel any outbound workers.
for state in self.outbound_states.values():
if state.worker and not state.worker.done():
state.worker.cancel()
return True
# -- inbound --------------------------------------------------------------
def _err(self, kind: str, detail: str = ''):
status, code = _ERR[kind]
return quart.jsonify({'code': code, 'msg': detail or kind, 'data': None}), status
def _prune_idempotency(self) -> None:
now = time.time()
if len(self.idempotency_cache) > _IDEMPOTENCY_MAX:
self.idempotency_cache.clear()
return
expired = [k for k, ts in self.idempotency_cache.items() if now - ts > _IDEMPOTENCY_TTL]
for k in expired:
self.idempotency_cache.pop(k, None)
async def handle_unified_webhook(self, bot_uuid: str, path: str, request):
"""Handle an inbound POST from the unified webhook dispatcher.
Sub-path routing:
(no path) -> push a message
"reset" -> reset a session's conversation (body: {session_id, session_type?})
"sync" -> push a message and wait for the final reply (collapses 1->M)
"""
object.__setattr__(self, 'bot_uuid', bot_uuid)
if path == 'reset':
return await self._handle_reset(request)
if path == 'sync':
return await self._handle_inbound(request, sync=True)
if path in ('', None):
return await self._handle_inbound(request, sync=False)
return self._err('bad_request', f'unknown sub-path: {path}')
async def _read_and_verify(self, request) -> tuple[dict | None, typing.Any]:
"""Read body, enforce size + signature. Returns (data, error_response)."""
body = await request.get_data()
if body and len(body) > _MAX_BODY:
return None, self._err('too_large', 'message too large')
if self.config.get('signature_required', True):
ok, reason = signing.verify(
secret=self.config.get('inbound_secret', ''),
body=body,
timestamp=request.headers.get(signing.HEADER_TIMESTAMP),
signature=request.headers.get(signing.HEADER_SIGNATURE),
)
if not ok:
await self.logger.warning(f'http_bot inbound signature rejected: {reason}')
return None, self._err('bad_signature', f'invalid signature: {reason}')
try:
data = json.loads(body)
except (json.JSONDecodeError, ValueError):
return None, self._err('bad_request', 'body is not valid JSON')
if not isinstance(data, dict):
return None, self._err('bad_request', 'body must be a JSON object')
return data, None
def _build_event(self, data: dict) -> tuple[platform_events.MessageEvent, str, str, str]:
"""Build a platform event from inbound data.
Returns (event, session_id, session_type, message_id).
"""
session_id = str(data['session_id'])
session_type = data.get('session_type') or self.config.get('default_session_type', 'person')
sender_meta = data.get('sender') or {}
sender_name = str(sender_meta.get('name', 'User'))
message_id = 'in_' + uuid.uuid4().hex
chain = platform_message.MessageChain.model_validate(data['message'])
# Carry the inbound message id + timestamp as the Source component.
chain.insert(0, platform_message.Source(id=message_id, time=datetime.now()))
if session_type == 'group':
group = platform_entities.Group(
id=session_id,
name=str(sender_meta.get('group_name', session_id)),
permission=platform_entities.Permission.Member,
)
sender = platform_entities.GroupMember(
id=str(sender_meta.get('id', session_id)),
member_name=sender_name,
group=group,
permission=platform_entities.Permission.Member,
)
event = platform_events.GroupMessage(sender=sender, message_chain=chain, time=datetime.now().timestamp())
else:
sender = platform_entities.Friend(id=session_id, nickname=sender_name, remark=sender_name)
event = platform_events.FriendMessage(sender=sender, message_chain=chain, time=datetime.now().timestamp())
return event, session_id, session_type, message_id
async def _handle_inbound(self, request, sync: bool):
data, err = await self._read_and_verify(request)
if err is not None:
return err
if 'session_id' not in data or 'message' not in data:
return self._err('bad_request', 'session_id and message are required')
# Idempotency.
idem = request.headers.get(signing.HEADER_IDEMPOTENCY)
if idem:
self._prune_idempotency()
if idem in self.idempotency_cache:
return self._err('duplicate', 'idempotency key already accepted')
self.idempotency_cache[idem] = time.time()
try:
event, session_id, session_type, message_id = self._build_event(data)
except Exception as e: # noqa: BLE001
return self._err('bad_request', f'failed to parse message: {e}')
listener = self.listeners.get(type(event))
if listener is None:
return self._err('internal', 'no listener registered for event type')
if sync:
return await self._run_sync(event, listener, session_id, message_id)
# Fire-and-collect: kick the pipeline, return 202 immediately.
asyncio.create_task(listener(event, self))
return quart.jsonify(
{
'code': 0,
'msg': 'accepted',
'data': {
'session_id': session_id,
'accepted_message_id': message_id,
'aggregating': True,
},
}
), 202
async def _handle_reset(self, request):
data, err = await self._read_and_verify(request)
if err is not None:
return err
if 'session_id' not in data:
return self._err('bad_request', 'session_id is required')
session_id = str(data['session_id'])
session_type = data.get('session_type') or self.config.get('default_session_type', 'person')
launcher_type = 'group' if session_type == 'group' else 'person'
removed = await self._reset_session(launcher_type, session_id)
return quart.jsonify({'code': 0, 'msg': 'reset', 'data': {'session_id': session_id, 'removed': removed}}), 200
async def _reset_session(self, launcher_type: str, launcher_id: str) -> bool:
"""Drop the matching session so the next message starts a fresh conversation."""
sess_mgr = self.ap.sess_mgr
before = len(sess_mgr.session_list)
sess_mgr.session_list = [
s
for s in sess_mgr.session_list
if not (
str(s.launcher_type.value if hasattr(s.launcher_type, 'value') else s.launcher_type) == launcher_type
and str(s.launcher_id) == launcher_id
)
]
return len(sess_mgr.session_list) < before
# -- outbound -------------------------------------------------------------
@staticmethod
def _extract_session_id(message_source: platform_events.MessageEvent) -> str:
if isinstance(message_source, platform_events.GroupMessage):
return str(message_source.sender.group.id)
return str(message_source.sender.id)
@staticmethod
def _extract_reply_to(message_source: platform_events.MessageEvent) -> str:
for comp in message_source.message_chain:
if isinstance(comp, platform_message.Source):
return str(comp.id)
return ''
def _next_sequence(self, session_id: str, is_final: bool) -> int:
state = self.outbound_states.setdefault(session_id, _SessionOutbound())
if state.last_was_final:
state.sequence = 1
else:
state.sequence += 1
state.last_was_final = is_final
return state.sequence
async def _enqueue_callback(self, session_id: str, payload: dict) -> None:
state = self.outbound_states.setdefault(session_id, _SessionOutbound())
if state.worker is None or state.worker.done():
state.worker = asyncio.create_task(self._outbound_worker(session_id, state))
try:
state.queue.put_nowait(payload)
except asyncio.QueueFull:
# Drop oldest to bound memory, then enqueue (best-effort, at-least-once).
try:
state.queue.get_nowait()
except asyncio.QueueEmpty:
pass
await self.logger.warning(f'http_bot outbound queue full for session {session_id}; dropped oldest')
state.queue.put_nowait(payload)
async def _outbound_worker(self, session_id: str, state: _SessionOutbound) -> None:
while True:
payload = await state.queue.get()
try:
await self._deliver_callback(payload)
except Exception as e: # noqa: BLE001
await self.logger.error(f'http_bot callback delivery failed for {session_id}: {e}')
finally:
state.queue.task_done()
async def _deliver_callback(self, payload: dict) -> None:
callback_url = self.config.get('callback_url', '')
if not callback_url:
await self.logger.warning('http_bot has no callback_url configured; dropping reply')
return
body = json.dumps(payload, ensure_ascii=False).encode()
secret = self.config.get('outbound_secret') or self.config.get('inbound_secret', '')
ts, sig = signing.sign(secret, body)
headers = {
'Content-Type': 'application/json',
signing.HEADER_TIMESTAMP: ts,
signing.HEADER_SIGNATURE: sig,
}
timeout = aiohttp.ClientTimeout(total=int(self.config.get('callback_timeout', 15)))
max_retries = int(self.config.get('callback_max_retries', 3))
session = httpclient.get_session()
attempt = 0
while True:
attempt += 1
try:
async with session.post(callback_url, data=body, headers=headers, timeout=timeout) as resp:
if resp.status < 400:
return
if resp.status < 500 or attempt > max_retries:
await self.logger.warning(f'http_bot callback {callback_url} -> {resp.status}, giving up')
return
except (aiohttp.ClientError, asyncio.TimeoutError) as e:
if attempt > max_retries:
await self.logger.warning(f'http_bot callback {callback_url} failed after {attempt} tries: {e}')
return
await asyncio.sleep(min(2 ** (attempt - 1), 30))
async def _emit_reply(
self,
message_source: platform_events.MessageEvent,
message: platform_message.MessageChain,
is_final: bool,
stream: bool,
) -> dict:
session_id = self._extract_session_id(message_source)
reply_to = self._extract_reply_to(message_source)
sequence = self._next_sequence(session_id, is_final)
parts = [c.model_dump() if hasattr(c, 'model_dump') else c.__dict__ for c in message]
payload = {
'session_id': session_id,
'reply_to': reply_to,
'sequence': sequence,
'is_final': is_final,
'stream': stream,
'message': parts,
'timestamp': datetime.now().isoformat(),
}
# If a /sync request is awaiting this session, collect instead of POSTing.
collector = self.sync_waiters.get(session_id)
if collector is not None:
collector.parts.extend(parts)
if is_final:
collector.done.set()
return payload
await self._enqueue_callback(session_id, payload)
return payload
async def send_message(self, target_type: str, target_id: str, message: platform_message.MessageChain) -> dict:
"""Proactively push a message to a session (target_id == session_id)."""
sequence = self._next_sequence(str(target_id), is_final=True)
payload = {
'session_id': str(target_id),
'reply_to': '',
'sequence': sequence,
'is_final': True,
'stream': False,
'message': [c.model_dump() if hasattr(c, 'model_dump') else c.__dict__ for c in message],
'timestamp': datetime.now().isoformat(),
}
await self._enqueue_callback(str(target_id), payload)
return payload
async def reply_message(
self,
message_source: platform_events.MessageEvent,
message: platform_message.MessageChain,
quote_origin: bool = False,
) -> dict:
return await self._emit_reply(message_source, message, is_final=True, stream=False)
async def reply_message_chunk(
self,
message_source: platform_events.MessageEvent,
bot_message,
message: platform_message.MessageChain,
quote_origin: bool = False,
is_final: bool = False,
) -> dict:
message_is_final = is_final and getattr(bot_message, 'tool_calls', None) is None
return await self._emit_reply(message_source, message, is_final=message_is_final, stream=True)
# -- sync convenience mode ------------------------------------------------
async def _run_sync(self, event, listener, session_id: str, message_id: str):
"""Push a message and wait for the final reply, collapsing 1->M parts.
Lossy by design (drops streaming/ordering nuance); documented as such.
Concurrency-safe: routing is via the per-session ``_sync_waiters``
registry that ``_emit_reply`` consults, not by patching methods.
"""
if session_id in self.sync_waiters:
return self._err('duplicate', 'a sync request is already in flight for this session')
collector = _SyncCollector()
self.sync_waiters[session_id] = collector
try:
asyncio.create_task(listener(event, self))
timeout = int(self.config.get('callback_timeout', 15)) * 4
try:
await asyncio.wait_for(collector.done.wait(), timeout=timeout)
except asyncio.TimeoutError:
await self.logger.warning(f'http_bot sync wait timed out for session {session_id}')
finally:
self.sync_waiters.pop(session_id, None)
return quart.jsonify(
{
'code': 0,
'msg': 'ok',
'data': {
'session_id': session_id,
'reply_to': message_id,
'message': collector.parts,
},
}
), 200
@@ -1,9 +0,0 @@
<svg width="800px" height="800px" viewBox="0 0 64 64" fill="none" xmlns="http://www.w3.org/2000/svg">
<rect x="2" y="2" width="60" height="60" rx="14" fill="#2563EB"/>
<g stroke="#FFFFFF" stroke-width="3.6" stroke-linecap="round" stroke-linejoin="round" fill="none">
<!-- </> code icon -->
<path d="M24 22 L14 32 L24 42"/>
<path d="M40 22 L50 32 L40 42"/>
<path d="M36 18 L28 46"/>
</g>
</svg>

Before

Width:  |  Height:  |  Size: 416 B

@@ -1,153 +0,0 @@
apiVersion: v1
kind: MessagePlatformAdapter
metadata:
name: http_bot
label:
en_US: HTTP Bot
zh_Hans: HTTP 通用接入
zh_Hant: HTTP 通用接入
ja_JP: HTTP ボット
description:
en_US: Integrate any backend over plain HTTP. Push messages in via a signed webhook, receive replies on a callback URL. Server-to-server, no long-lived connection. Preserves message aggregation (N->1) and multi-part replies (1->M).
zh_Hans: 通过 HTTP 接入任意后端系统。以签名 Webhook 推入消息,在回调地址接收回复。面向服务间集成,无需长连接。完整保留消息聚合(多条合一)与多段回复(一条问、多条回)能力。
zh_Hant: 透過 HTTP 接入任意後端系統。以簽名 Webhook 推入訊息,在回調地址接收回覆。面向服務間整合,無需長連線。完整保留訊息聚合(多條合一)與多段回覆(一條問、多條回)能力。
ja_JP: 任意のバックエンドを HTTP で接続。署名付き Webhook でメッセージを送信し、コールバック URL で返信を受信します。サーバー間連携、長時間接続不要。メッセージ集約(N→1)とマルチパート返信(1→M)に対応。
icon: http_bot.svg
spec:
categories:
- popular
- global
help_links:
zh: https://docs.langbot.app/zh/platforms/http-bot
en: https://docs.langbot.app/en/platforms/http-bot
ja: https://docs.langbot.app/ja/platforms/http-bot
config:
- name: webhook_url
label:
en_US: Inbound Webhook URL
zh_Hans: 入站 Webhook 地址
zh_Hant: 入站 Webhook 地址
ja_JP: 受信 Webhook URL
description:
en_US: Copy this URL. Your backend POSTs messages here (signed with the inbound secret).
zh_Hans: 复制此地址。你的后端将消息以签名方式 POST 到这里。
zh_Hant: 複製此地址。你的後端將訊息以簽名方式 POST 到這裡。
ja_JP: この URL をコピーしてください。バックエンドは署名付きでここにメッセージを POST します。
type: webhook-url
required: false
default: ""
- name: inbound_secret
label:
en_US: Inbound Signing Secret
zh_Hans: 入站签名密钥
zh_Hant: 入站簽名密鑰
ja_JP: 受信署名シークレット
description:
en_US: HMAC-SHA256 secret your backend uses to sign inbound requests. LangBot verifies every inbound POST with it.
zh_Hans: 你的后端用于对入站请求做 HMAC-SHA256 签名的密钥;LangBot 据此校验每个入站 POST。
zh_Hant: 你的後端用於對入站請求做 HMAC-SHA256 簽名的密鑰;LangBot 據此校驗每個入站 POST。
ja_JP: バックエンドが受信リクエストの署名に使う HMAC-SHA256 シークレット。LangBot は受信 POST ごとに検証します。
type: string
required: true
default: ""
- name: callback_url
label:
en_US: Outbound Callback URL
zh_Hans: 出站回调地址
zh_Hant: 出站回調地址
ja_JP: 送信コールバック URL
description:
en_US: Where LangBot POSTs replies. One turn may trigger multiple callbacks (1->M). For security the callback URL is taken ONLY from this config and cannot be overridden per-message.
zh_Hans: LangBot 将回复 POST 到此地址。一轮对话可能触发多次回调(一问多答)。出于安全考虑,回调地址只取自此配置,不允许逐条消息覆盖。
zh_Hant: LangBot 將回覆 POST 到此地址。一輪對話可能觸發多次回調(一問多答)。出於安全考慮,回調地址只取自此配置,不允許逐條訊息覆蓋。
ja_JP: LangBot が返信を POST する先。1 ターンで複数回のコールバック(1→M)が発生し得ます。セキュリティ上、コールバック URL はこの設定からのみ取得し、メッセージ単位で上書きできません。
type: string
required: true
default: ""
- name: outbound_secret
label:
en_US: Outbound Signing Secret
zh_Hans: 出站签名密钥
zh_Hant: 出站簽名密鑰
ja_JP: 送信署名シークレット
description:
en_US: HMAC-SHA256 secret LangBot uses to sign outbound callbacks so your receiver can verify them. Falls back to the inbound secret when empty.
zh_Hans: LangBot 用于对出站回调签名的密钥,供你的接收端校验。留空时回退使用入站密钥。
zh_Hant: LangBot 用於對出站回調簽名的密鑰,供你的接收端校驗。留空時回退使用入站密鑰。
ja_JP: LangBot が送信コールバックの署名に使う HMAC-SHA256 シークレット。受信側で検証できます。空の場合は受信シークレットを使用します。
type: string
required: false
default: ""
- name: default_session_type
label:
en_US: Default Session Type
zh_Hans: 默认会话类型
zh_Hant: 預設會話類型
ja_JP: デフォルトセッションタイプ
description:
en_US: Session type used when an inbound message omits session_type.
zh_Hans: 入站消息未携带 session_type 时使用的会话类型。
zh_Hant: 入站訊息未攜帶 session_type 時使用的會話類型。
ja_JP: 受信メッセージに session_type がない場合に使用するセッションタイプ。
type: select
options:
- name: person
label:
en_US: Person (1-on-1)
zh_Hans: 个人(一对一)
zh_Hant: 個人(一對一)
ja_JP: 個人(1 対 1
- name: group
label:
en_US: Group
zh_Hans: 群组
zh_Hant: 群組
ja_JP: グループ
required: false
default: person
- name: signature_required
label:
en_US: Require Inbound Signature
zh_Hans: 强制入站签名校验
zh_Hant: 強制入站簽名校驗
ja_JP: 受信署名を必須にする
description:
en_US: When enabled (recommended), every inbound POST must carry a valid signature. Disable ONLY for local development behind a trusted network.
zh_Hans: 开启(推荐)后,每个入站 POST 都必须带有效签名。仅在受信任内网的本地开发时关闭。
zh_Hant: 開啟(推薦)後,每個入站 POST 都必須帶有效簽名。僅在受信任內網的本地開發時關閉。
ja_JP: 有効(推奨)にすると、すべての受信 POST に有効な署名が必要です。信頼できるネットワーク内のローカル開発時のみ無効化してください。
type: boolean
required: false
default: true
- name: callback_timeout
label:
en_US: Callback Timeout (seconds)
zh_Hans: 回调超时(秒)
zh_Hant: 回調逾時(秒)
ja_JP: コールバックタイムアウト(秒)
description:
en_US: Per-callback HTTP timeout.
zh_Hans: 单次回调的 HTTP 超时时间。
zh_Hant: 單次回調的 HTTP 逾時時間。
ja_JP: コールバックごとの HTTP タイムアウト。
type: integer
required: false
default: 15
- name: callback_max_retries
label:
en_US: Callback Max Retries
zh_Hans: 回调最大重试次数
zh_Hant: 回調最大重試次數
ja_JP: コールバック最大リトライ回数
description:
en_US: Retries on timeout or 5xx, with exponential backoff.
zh_Hans: 超时或 5xx 时按指数退避重试的次数。
zh_Hant: 逾時或 5xx 時按指數退避重試的次數。
ja_JP: タイムアウトまたは 5xx 時に指数バックオフでリトライする回数。
type: integer
required: false
default: 3
execution:
python:
path: ./http_bot.py
attr: HttpBotAdapter
@@ -1,95 +0,0 @@
"""HMAC signing utilities for the HTTP Bot adapter.
A dependency-free, symmetric HMAC-SHA256 scheme used in *both* directions:
signing_string = "{timestamp}." + raw_body_bytes
signature = "sha256=" + hex(HMAC_SHA256(secret, signing_string))
Inbound requests are signed by the caller and verified here; outbound
callbacks are signed here and verified by the caller. The scheme is trivial to
reproduce in any language (see docs/platforms/http-bot.md for JS/curl).
"""
from __future__ import annotations
import hashlib
import hmac
import time
# Header names (kept here so adapter + clients agree on a single source).
HEADER_TIMESTAMP = 'X-LB-Timestamp'
HEADER_SIGNATURE = 'X-LB-Signature'
HEADER_IDEMPOTENCY = 'X-LB-Idempotency-Key'
# Maximum allowed clock skew between signer and verifier (seconds).
DEFAULT_REPLAY_WINDOW = 300
def compute_signature(secret: str, body: bytes, timestamp: str | int) -> str:
"""Compute the ``sha256=<hex>`` signature for *body* at *timestamp*.
Args:
secret: Shared HMAC secret.
body: Raw request body bytes (exactly as sent on the wire).
timestamp: Unix timestamp (seconds) as str or int.
Returns:
The signature string, e.g. ``sha256=ab12...``.
"""
signing_string = f'{timestamp}.'.encode() + body
digest = hmac.new(secret.encode(), signing_string, hashlib.sha256).hexdigest()
return f'sha256={digest}'
def sign(secret: str, body: bytes, timestamp: int | None = None) -> tuple[str, str]:
"""Produce ``(timestamp, signature)`` for an outbound request.
Args:
secret: Shared HMAC secret.
body: Raw request body bytes.
timestamp: Optional fixed timestamp; defaults to ``int(time.time())``.
Returns:
``(timestamp_str, signature_str)``.
"""
ts = str(timestamp if timestamp is not None else int(time.time()))
return ts, compute_signature(secret, body, ts)
def verify(
secret: str,
body: bytes,
timestamp: str | None,
signature: str | None,
replay_window: int = DEFAULT_REPLAY_WINDOW,
) -> tuple[bool, str]:
"""Verify an inbound signature.
Args:
secret: Shared HMAC secret.
body: Raw request body bytes.
timestamp: Value of the timestamp header.
signature: Value of the signature header.
replay_window: Max allowed skew in seconds.
Returns:
``(ok, reason)``. ``reason`` is empty when ``ok`` is True, otherwise a
short machine-friendly cause (``missing_headers`` / ``bad_timestamp`` /
``expired`` / ``signature_mismatch``).
"""
if not timestamp or not signature:
return False, 'missing_headers'
try:
ts_int = int(float(timestamp))
except (ValueError, TypeError):
return False, 'bad_timestamp'
if abs(int(time.time()) - ts_int) > replay_window:
return False, 'expired'
expected = compute_signature(secret, body, timestamp)
if not hmac.compare_digest(expected, signature):
return False, 'signature_mismatch'
return True, ''
@@ -0,0 +1,293 @@
"""Agent-runner pull actions (history / event)."""
from __future__ import annotations
from typing import Any
from langbot_plugin.runtime.io import handler
from langbot_plugin.entities.io.actions.enums import (
PluginToRuntimeAction,
)
from .agent_run_support import (
_get_run_authorization,
_validate_agent_run_session,
_resolve_run_conversation,
_run_scope_filters,
_event_matches_run_scope,
_project_event_record_for_api,
)
def register(h):
@h.action(PluginToRuntimeAction.HISTORY_PAGE)
async def history_page(data: dict[str, Any]) -> handler.ActionResponse:
"""Page through transcript history for a conversation.
Requires run_id authorization. Only allows access to current run's conversation.
"""
run_id = data.get('run_id')
conversation_id = data.get('conversation_id')
before_cursor = data.get('before_cursor')
after_cursor = data.get('after_cursor')
limit = data.get('limit', 50)
direction = data.get('direction', 'backward')
include_attachments = data.get('include_attachments', False)
caller_plugin_identity = data.get('caller_plugin_identity')
if not run_id:
return handler.ActionResponse.error(message='run_id is required')
session, error = await _validate_agent_run_session(
run_id,
caller_plugin_identity,
h.ap,
'History page',
api_capability='history_page',
)
if error:
return error
conversation_id, scope_error = _resolve_run_conversation(
session,
conversation_id,
'History page',
)
if scope_error:
return scope_error
if not conversation_id:
return handler.ActionResponse.success(
data={
'items': [],
'next_cursor': None,
'prev_cursor': None,
'has_more': False,
}
)
# Parse cursors
before_seq = int(before_cursor) if before_cursor else None
after_seq = int(after_cursor) if after_cursor else None
# Query transcript
from ..agent.runner.transcript_store import TranscriptStore
store = TranscriptStore(h.ap.persistence_mgr.get_db_engine())
try:
items, next_seq, prev_seq, has_more = await store.page_transcript(
conversation_id=conversation_id,
before_seq=before_seq,
after_seq=after_seq,
limit=limit,
direction=direction,
include_attachments=include_attachments,
**_run_scope_filters(session),
)
return handler.ActionResponse.success(
data={
'items': items,
'next_cursor': str(next_seq) if next_seq else None,
'prev_cursor': str(prev_seq) if prev_seq else None,
'has_more': has_more,
}
)
except Exception as e:
h.ap.logger.error(f'HISTORY_PAGE error: {e}', exc_info=True)
return handler.ActionResponse.error(message=f'History page error: {e}')
@h.action(PluginToRuntimeAction.HISTORY_SEARCH)
async def history_search(data: dict[str, Any]) -> handler.ActionResponse:
"""Search transcript history.
Requires run_id authorization. Only searches current run's conversation.
Basic implementation using LIKE filtering.
"""
run_id = data.get('run_id')
query_text = data.get('query', '')
filters = data.get('filters') or {}
top_k = data.get('top_k', 10)
caller_plugin_identity = data.get('caller_plugin_identity')
if not run_id:
return handler.ActionResponse.error(message='run_id is required')
session, error = await _validate_agent_run_session(
run_id,
caller_plugin_identity,
h.ap,
'History search',
api_capability='history_search',
)
if error:
return error
requested_conversation_id = filters.get('conversation_id')
conversation_id, scope_error = _resolve_run_conversation(
session,
requested_conversation_id,
'History search',
)
if scope_error:
return scope_error
if not conversation_id:
return handler.ActionResponse.success(
data={
'items': [],
'total_count': 0,
'query': query_text,
}
)
# Search transcript
from ..agent.runner.transcript_store import TranscriptStore
store = TranscriptStore(h.ap.persistence_mgr.get_db_engine())
try:
safe_filters = {k: v for k, v in filters.items() if k != 'conversation_id'}
items = await store.search_transcript(
conversation_id=conversation_id,
query_text=query_text,
filters=safe_filters,
top_k=top_k,
**_run_scope_filters(session),
)
return handler.ActionResponse.success(
data={
'items': items,
'total_count': len(items),
'query': query_text,
}
)
except Exception as e:
h.ap.logger.error(f'HISTORY_SEARCH error: {e}', exc_info=True)
return handler.ActionResponse.error(message=f'History search error: {e}')
@h.action(PluginToRuntimeAction.EVENT_GET)
async def event_get(data: dict[str, Any]) -> handler.ActionResponse:
"""Get a single event record by ID.
Requires run_id authorization. Only allows access to events in current run's conversation.
"""
run_id = data.get('run_id')
event_id = data.get('event_id')
caller_plugin_identity = data.get('caller_plugin_identity')
if not run_id:
return handler.ActionResponse.error(message='run_id is required')
if not event_id:
return handler.ActionResponse.error(message='event_id is required')
session, error = await _validate_agent_run_session(
run_id,
caller_plugin_identity,
h.ap,
'Event get',
api_capability='event_get',
)
if error:
return error
# Get event
from ..agent.runner.event_log_store import EventLogStore
store = EventLogStore(h.ap.persistence_mgr.get_db_engine())
try:
event = await store.get_event(event_id)
if not event:
return handler.ActionResponse.error(message=f'Event {event_id} not found')
# Validate event is in the same conversation as the run, or was created by the same run.
session_conversation_id = _get_run_authorization(session).get('conversation_id')
event_run_id = event.get('run_id')
if event_run_id and event_run_id == run_id:
return handler.ActionResponse.success(data=_project_event_record_for_api(event))
if not session_conversation_id or not _event_matches_run_scope(session, event):
return handler.ActionResponse.error(message=f'Event {event_id} is not accessible by this run')
return handler.ActionResponse.success(data=_project_event_record_for_api(event))
except Exception as e:
h.ap.logger.error(f'EVENT_GET error: {e}', exc_info=True)
return handler.ActionResponse.error(message=f'Event get error: {e}')
@h.action(PluginToRuntimeAction.EVENT_PAGE)
async def event_page(data: dict[str, Any]) -> handler.ActionResponse:
"""Page through event records.
Requires run_id authorization. Only allows access to current run's conversation.
"""
run_id = data.get('run_id')
conversation_id = data.get('conversation_id')
event_types = data.get('event_types')
before_cursor = data.get('before_cursor')
limit = data.get('limit', 50)
caller_plugin_identity = data.get('caller_plugin_identity')
if not run_id:
return handler.ActionResponse.error(message='run_id is required')
session, error = await _validate_agent_run_session(
run_id,
caller_plugin_identity,
h.ap,
'Event page',
api_capability='event_page',
)
if error:
return error
conversation_id, scope_error = _resolve_run_conversation(
session,
conversation_id,
'Event page',
)
if scope_error:
return scope_error
if not conversation_id:
return handler.ActionResponse.success(
data={
'items': [],
'next_cursor': None,
'prev_cursor': None,
'has_more': False,
}
)
# Parse cursor
before_seq = int(before_cursor) if before_cursor else None
# Query events
from ..agent.runner.event_log_store import EventLogStore
store = EventLogStore(h.ap.persistence_mgr.get_db_engine())
try:
items, next_seq, has_more = await store.page_events(
conversation_id=conversation_id,
event_types=event_types,
before_seq=before_seq,
limit=limit,
**_run_scope_filters(session),
)
return handler.ActionResponse.success(
data={
'items': [_project_event_record_for_api(item) for item in items],
'next_cursor': str(next_seq) if next_seq else None,
'prev_cursor': None,
'has_more': has_more,
}
)
except Exception as e:
h.ap.logger.error(f'EVENT_PAGE error: {e}', exc_info=True)
return handler.ActionResponse.error(message=f'Event page error: {e}')
+488
View File
@@ -0,0 +1,488 @@
"""Agent-runner protocol support: shared constants and authorization/scope/projection helpers extracted from handler.py."""
from __future__ import annotations
from typing import Any, Union
import json
import time
import sqlalchemy
from langbot_plugin.runtime.io import handler
from langbot_plugin.entities.io.actions.enums import (
PluginToRuntimeAction,
)
from ..core import app
from ..agent.runner.session_registry import get_session_registry
from ..agent.runner.result_normalizer import MAX_RESULT_SIZE_BYTES, STRICT_RESULT_PAYLOADS
class _RuntimeActionName:
def __init__(self, value: str):
self.value = value
AGENT_RUN_ADMIN_PERMISSION = 'agent_run:admin'
RUNTIME_ADMIN_PERMISSION = 'runtime:admin'
AGENT_RUNNER_ADMIN_PERMISSION = 'agent_runner:admin'
LEDGER_ONLY_SIDE_EFFECTING_RESULT_TYPES = {
'message.delta',
'message.completed',
'state.updated',
'run.completed',
'run.failed',
}
def _plugin_runtime_action(name: str, value: str) -> Any:
return getattr(PluginToRuntimeAction, name, _RuntimeActionName(value))
def _normalize_permission_set(value: Any) -> set[str]:
if isinstance(value, str):
return {permission.strip() for permission in value.split(',') if permission.strip()}
if isinstance(value, list):
return {str(item).strip() for item in value if str(item).strip()}
if isinstance(value, dict):
return {str(item).strip() for item, enabled in value.items() if enabled and str(item).strip()}
return set()
def _iter_agent_runner_admin_plugin_configs(ap: app.Application) -> list[dict[str, Any]]:
instance_config = getattr(ap, 'instance_config', None)
config_data = getattr(instance_config, 'data', {}) if instance_config is not None else {}
if not isinstance(config_data, dict):
return []
agent_runner_config = config_data.get('agent_runner', {})
if not isinstance(agent_runner_config, dict):
return []
raw_admin_plugins = agent_runner_config.get('admin_plugins', [])
if isinstance(raw_admin_plugins, dict):
items: list[dict[str, Any]] = []
for identity, entry in raw_admin_plugins.items():
if isinstance(entry, dict):
merged = dict(entry)
merged.setdefault('identity', identity)
items.append(merged)
else:
items.append({'identity': identity, 'permissions': entry})
return items
if isinstance(raw_admin_plugins, list):
return [item for item in raw_admin_plugins if isinstance(item, dict)]
return []
def _agent_runner_admin_permissions(ap: app.Application, plugin_identity: str | None) -> set[str]:
if not isinstance(plugin_identity, str) or not plugin_identity.strip():
return set()
normalized_identity = plugin_identity.strip()
permissions: set[str] = set()
for entry in _iter_agent_runner_admin_plugin_configs(ap):
if entry.get('enabled', True) is False:
continue
identity = entry.get('identity') or entry.get('plugin_identity') or entry.get('plugin') or entry.get('id')
if identity != normalized_identity:
continue
permissions.update(_normalize_permission_set(entry.get('permissions')))
permissions.update(_normalize_permission_set(entry.get('scopes')))
return permissions
def _has_agent_runner_admin_permission(
ap: app.Application,
plugin_identity: str | None,
permission: str,
) -> bool:
permissions = _agent_runner_admin_permissions(ap, plugin_identity)
if not permissions:
return False
domain = permission.split(':', 1)[0]
return bool(
permission in permissions
or f'{domain}:*' in permissions
or AGENT_RUNNER_ADMIN_PERMISSION in permissions
or '*' in permissions
)
def _deadline_seconds_from_payload(data: dict[str, Any], default: int = 60) -> int:
deadline_at = data.get('heartbeat_deadline_at')
if deadline_at is not None:
try:
return max(int(float(deadline_at) - time.time()), 1)
except (TypeError, ValueError):
pass
try:
return max(int(data.get('heartbeat_ttl_seconds') or default), 1)
except (TypeError, ValueError):
return default
def _get_run_authorization(session: dict[str, Any]) -> dict[str, Any]:
"""Return the run-scoped authorization snapshot."""
return session['authorization']
def _run_matches_run_scope(session: dict[str, Any], run: dict[str, Any]) -> bool:
authorization = _get_run_authorization(session)
session_run_id = session.get('run_id')
if run.get('run_id') == session_run_id:
return True
session_runner_id = session.get('runner_id') or authorization.get('runner_id')
if not session_runner_id or run.get('runner_id') != session_runner_id:
return False
if not authorization.get('conversation_id'):
return False
if run.get('conversation_id') != authorization.get('conversation_id'):
return False
if authorization.get('bot_id') is not None and authorization.get('bot_id') != run.get('bot_id'):
return False
if authorization.get('workspace_id') is not None and authorization.get('workspace_id') != run.get('workspace_id'):
return False
if authorization.get('thread_id') != run.get('thread_id'):
return False
return True
def _authorize_target_run(
session: dict[str, Any],
run: dict[str, Any],
) -> handler.ActionResponse | None:
"""Authorize non-admin target-run access against scope and runner owner."""
if _run_matches_run_scope(session, run):
return None
return handler.ActionResponse.error(message=f'Run {run.get("run_id")} is not accessible by this run')
def _validate_ledger_only_result_payload(
*,
ap: app.Application,
runner_id: str | None,
event_type: str,
data: dict[str, Any],
) -> str | None:
"""Validate result payloads that can be safely stored without side effects."""
try:
result_json = json.dumps({'type': event_type, 'data': data})
except (TypeError, ValueError) as exc:
return f'event data must be JSON serializable: {exc}'
if len(result_json) > MAX_RESULT_SIZE_BYTES:
return f'event payload exceeds {MAX_RESULT_SIZE_BYTES} bytes'
payload_model = STRICT_RESULT_PAYLOADS.get(event_type)
if payload_model is None:
return f'unknown result type: {event_type}'
try:
payload_model.model_validate(data)
except Exception as exc:
return f'invalid {event_type} payload: {exc}'
if event_type in LEDGER_ONLY_SIDE_EFFECTING_RESULT_TYPES:
if runner_id:
ap.logger.warning(
f'Runner {runner_id} attempted ledger-only append for side-effecting result type {event_type}'
)
return f'{event_type} must be emitted through the canonical runner result path'
return None
async def _require_runtime_write_ownership(
*,
store: Any,
session: dict[str, Any],
run: dict[str, Any],
data: dict[str, Any],
api_name: str,
) -> handler.ActionResponse | None:
"""Require current-run ownership or an active runtime claim for run writes."""
if run.get('run_id') == session.get('run_id') and run.get('status') != 'claimed':
return None
runtime_id = data.get('runtime_id')
claim_token = data.get('claim_token')
if not runtime_id or not claim_token:
return handler.ActionResponse.error(
message=f'{api_name} requires active claim ownership for target run {run.get("run_id")}'
)
if not await store.validate_active_claim(
run_id=str(run.get('run_id')),
runtime_id=str(runtime_id),
claim_token=str(claim_token),
):
return handler.ActionResponse.error(
message=f'{api_name} claim ownership is not active for target run {run.get("run_id")}'
)
return None
def _resolve_state_scope(
session: dict[str, Any],
scope: str,
) -> tuple[dict[str, Any] | None, str | None, handler.ActionResponse | None]:
"""Resolve state policy/context for an authorized run scope."""
authorization = _get_run_authorization(session)
state_policy = authorization['state_policy']
if not state_policy.get('enable_state', True):
return None, None, handler.ActionResponse.error(message='State access is disabled by binding policy')
state_scopes = state_policy.get('state_scopes', ['conversation', 'actor'])
if scope not in state_scopes:
return None, None, handler.ActionResponse.error(message=f'Scope "{scope}" is not enabled by binding policy')
state_context = authorization['state_context']
scope_key = state_context.get('scope_keys', {}).get(scope)
if not scope_key:
return None, None, handler.ActionResponse.error(message=f'Scope key not available for scope "{scope}"')
return state_context, scope_key, None
async def _validate_agent_run_session(
run_id: str,
caller_plugin_identity: str | None,
ap: app.Application,
api_name: str,
api_capability: str | None = None,
allow_persistent_authorization: bool = False,
admin_permission: str | None = None,
) -> Union[tuple[None, handler.ActionResponse], tuple[Any, None]]:
"""Validate an AgentRunner pull API run session and run-scoped API access."""
if (
not run_id
and admin_permission
and _has_agent_runner_admin_permission(
ap,
caller_plugin_identity,
admin_permission,
)
):
return {
'run_id': run_id,
'runner_id': None,
'query_id': None,
'plugin_identity': caller_plugin_identity,
'authorization': {},
'status': {},
'steering_queue': [],
}, None
session_registry = get_session_registry()
session = await session_registry.get(run_id)
if not session:
if allow_persistent_authorization:
session = await _load_persistent_agent_run_session(run_id, ap, api_name)
if not session:
return None, handler.ActionResponse.error(message=f'Run session {run_id} not found or expired')
session_plugin_identity = session.get('plugin_identity')
if not isinstance(session_plugin_identity, str) or not session_plugin_identity.strip():
ap.logger.warning(f'{api_name}: run_id {run_id} has no plugin_identity')
return None, handler.ActionResponse.error(message=f'Run session {run_id} has no plugin_identity')
if not caller_plugin_identity:
return None, handler.ActionResponse.error(message=f'caller_plugin_identity is required for run_id {run_id}')
if caller_plugin_identity != session_plugin_identity:
ap.logger.warning(
f'{api_name}: caller_plugin_identity {caller_plugin_identity} '
f'does not match session plugin_identity {session_plugin_identity}'
)
return None, handler.ActionResponse.error(message=f'Plugin identity mismatch for run_id {run_id}')
if api_capability:
available_apis = _get_run_authorization(session).get('available_apis', {})
has_admin_permission = bool(admin_permission) and _has_agent_runner_admin_permission(
ap,
caller_plugin_identity,
admin_permission,
)
if not available_apis.get(api_capability, False) and not has_admin_permission:
return None, handler.ActionResponse.error(message=f'{api_name} access not authorized')
return session, None
async def _load_persistent_agent_run_session(
run_id: str,
ap: app.Application,
api_name: str,
) -> dict[str, Any] | None:
"""Load an expired run session from the AgentRun authorization snapshot."""
try:
from sqlalchemy.ext.asyncio import AsyncSession
from sqlalchemy.orm import sessionmaker
from ..entity.persistence.agent_run import AgentRun
engine = ap.persistence_mgr.get_db_engine()
session_factory = sessionmaker(engine, class_=AsyncSession, expire_on_commit=False)
async with session_factory() as db_session:
result = await db_session.execute(sqlalchemy.select(AgentRun).where(AgentRun.run_id == run_id))
run = result.scalars().first()
except Exception as e:
ap.logger.error(f'{api_name}: failed to load persistent authorization for run_id {run_id}: {e}', exc_info=True)
return None
if run is None:
return None
try:
authorization = json.loads(run.authorization_json) if run.authorization_json else {}
except (TypeError, ValueError) as e:
ap.logger.warning(f'{api_name}: run_id {run_id} has invalid authorization_json: {e}')
return None
if not isinstance(authorization, dict):
ap.logger.warning(f'{api_name}: run_id {run_id} authorization_json is not an object')
return None
return {
'run_id': run.run_id,
'runner_id': authorization.get('runner_id') or run.runner_id,
'query_id': None,
'plugin_identity': authorization.get('plugin_identity'),
'authorization': authorization,
'status': {},
'steering_queue': [],
}
def _resolve_run_conversation(
session: dict[str, Any],
requested_conversation_id: str | None,
api_name: str,
) -> tuple[str | None, handler.ActionResponse | None]:
"""Resolve and enforce current-run conversation scope."""
session_conversation_id = _get_run_authorization(session).get('conversation_id')
if requested_conversation_id:
if not session_conversation_id:
return None, handler.ActionResponse.error(message=f'{api_name} is not available without a run conversation')
if requested_conversation_id != session_conversation_id:
return None, handler.ActionResponse.error(
message=f'Conversation {requested_conversation_id} is not accessible by this run'
)
return requested_conversation_id, None
return session_conversation_id, None
def _run_scope_filters(session: dict[str, Any]) -> dict[str, Any]:
authorization = _get_run_authorization(session)
return {
'bot_id': authorization.get('bot_id'),
'workspace_id': authorization.get('workspace_id'),
'thread_id': authorization.get('thread_id'),
'strict_thread': True,
}
def _run_ledger_scope_filters(session: dict[str, Any]) -> dict[str, Any]:
authorization = _get_run_authorization(session)
filters = _run_scope_filters(session)
filters['runner_id'] = session.get('runner_id') or authorization.get('runner_id')
return filters
def _event_matches_run_scope(session: dict[str, Any], event: dict[str, Any]) -> bool:
authorization = _get_run_authorization(session)
if authorization.get('conversation_id') != event.get('conversation_id'):
return False
if authorization.get('bot_id') is not None and authorization.get('bot_id') != event.get('bot_id'):
return False
if authorization.get('workspace_id') is not None and authorization.get('workspace_id') != event.get('workspace_id'):
return False
if authorization.get('thread_id') != event.get('thread_id'):
return False
return True
def _project_event_record_for_api(event: dict[str, Any]) -> dict[str, Any]:
"""Project EventLogStore rows onto the SDK AgentEventRecord DTO."""
seq = event.get('seq') or event.get('id')
return {
'event_id': event.get('event_id'),
'event_type': event.get('event_type'),
'event_time': event.get('event_time'),
'source': event.get('source'),
'bot_id': event.get('bot_id'),
'workspace_id': event.get('workspace_id'),
'conversation_id': event.get('conversation_id'),
'thread_id': event.get('thread_id'),
'actor_type': event.get('actor_type'),
'actor_id': event.get('actor_id'),
'actor_name': event.get('actor_name'),
'subject_type': event.get('subject_type'),
'subject_id': event.get('subject_id'),
'input_summary': event.get('input_summary'),
'input_ref': event.get('input_ref'),
'raw_ref': event.get('raw_ref'),
'seq': seq,
'cursor': event.get('cursor') or (str(seq) if seq is not None else None),
'created_at': event.get('created_at'),
'metadata': event.get('metadata') or {},
}
def _project_runner_descriptor_for_api(descriptor: Any) -> dict[str, Any]:
"""Project an AgentRunnerDescriptor-like object onto a JSON dict."""
if isinstance(descriptor, dict):
return dict(descriptor)
if hasattr(descriptor, 'model_dump'):
return descriptor.model_dump(mode='json')
return {
'id': getattr(descriptor, 'id', None),
'source': getattr(descriptor, 'source', None),
'label': getattr(descriptor, 'label', {}),
'description': getattr(descriptor, 'description', None),
'plugin_author': getattr(descriptor, 'plugin_author', None),
'plugin_name': getattr(descriptor, 'plugin_name', None),
'runner_name': getattr(descriptor, 'runner_name', None),
'plugin_version': getattr(descriptor, 'plugin_version', None),
'config_schema': getattr(descriptor, 'config_schema', []),
'capabilities': getattr(descriptor, 'capabilities', {}),
'permissions': getattr(descriptor, 'permissions', {}),
'raw_manifest': getattr(descriptor, 'raw_manifest', {}),
}
async def _record_agent_runner_admin_action(
ap: app.Application,
store: Any,
*,
action: str,
caller_plugin_identity: str | None,
permission: str,
durable_run_id: str | None = None,
target_runtime_id: str | None = None,
detail: dict[str, Any] | None = None,
) -> None:
"""Record a small audit trail for privileged AgentRunner operations."""
audit_data: dict[str, Any] = {
'action': action,
'caller_plugin_identity': caller_plugin_identity,
'permission': permission,
}
if durable_run_id:
audit_data['target_run_id'] = durable_run_id
if target_runtime_id:
audit_data['target_runtime_id'] = target_runtime_id
if detail:
audit_data['detail'] = detail
ap.logger.info('Agent runner admin action: %s', audit_data)
if not durable_run_id or store is None or not hasattr(store, 'append_audit_event'):
return
try:
await store.append_audit_event(
run_id=str(durable_run_id),
event_type=f'admin.{action}',
data=audit_data,
metadata={'permission': permission},
)
except Exception as exc:
ap.logger.warning(f'Failed to record AgentRunner admin audit event: {exc}', exc_info=True)
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@@ -0,0 +1,316 @@
"""Agent-runner steering / state actions."""
from __future__ import annotations
from typing import Any
from langbot_plugin.runtime.io import handler
from langbot_plugin.entities.io.actions.enums import (
PluginToRuntimeAction,
)
from ..agent.runner.session_registry import get_session_registry
from .agent_run_support import (
_resolve_state_scope,
_validate_agent_run_session,
)
def register(h):
@h.action(PluginToRuntimeAction.STEERING_PULL)
async def steering_pull(data: dict[str, Any]) -> handler.ActionResponse:
"""Pull pending steering/follow-up inputs for the current run."""
run_id = data.get('run_id')
mode = data.get('mode', 'all')
limit = data.get('limit')
caller_plugin_identity = data.get('caller_plugin_identity')
if not run_id:
return handler.ActionResponse.error(message='run_id is required')
if limit is not None:
try:
limit = int(limit)
except (TypeError, ValueError):
return handler.ActionResponse.error(message='limit must be an integer')
if limit <= 0:
return handler.ActionResponse.error(message='limit must be > 0')
limit = min(limit, 100)
session, error = await _validate_agent_run_session(
run_id,
caller_plugin_identity,
h.ap,
'Steering pull',
api_capability='steering_pull',
)
if error:
return error
session_registry = get_session_registry()
items = await session_registry.pull_steering(
run_id,
mode=str(mode or 'all'),
limit=limit,
)
if items:
try:
from ..agent.runner.event_log_store import EventLogStore
store = EventLogStore(h.ap.persistence_mgr.get_db_engine())
for item in items:
event = item.get('event') if isinstance(item, dict) else None
conversation = item.get('conversation') if isinstance(item, dict) else None
actor = item.get('actor') if isinstance(item, dict) else None
subject = item.get('subject') if isinstance(item, dict) else None
if not isinstance(event, dict):
continue
await store.append_event(
event_id=None,
event_type='steering.injected',
source='agent_runner',
bot_id=conversation.get('bot_id') if isinstance(conversation, dict) else None,
workspace_id=conversation.get('workspace_id') if isinstance(conversation, dict) else None,
conversation_id=conversation.get('conversation_id') if isinstance(conversation, dict) else None,
thread_id=conversation.get('thread_id') if isinstance(conversation, dict) else None,
actor_type=actor.get('actor_type') if isinstance(actor, dict) else None,
actor_id=actor.get('actor_id') if isinstance(actor, dict) else None,
actor_name=actor.get('actor_name') if isinstance(actor, dict) else None,
subject_type=subject.get('subject_type') if isinstance(subject, dict) else None,
subject_id=subject.get('subject_id') if isinstance(subject, dict) else None,
input_summary=f'steering injected from {event.get("event_id")}',
run_id=run_id,
runner_id=session.get('runner_id') if isinstance(session, dict) else None,
metadata={
'steering': {
'status': 'injected',
'source_event_id': event.get('event_id'),
'claimed_by_run_id': item.get('claimed_run_id') if isinstance(item, dict) else run_id,
'claimed_runner_id': item.get('runner_id') if isinstance(item, dict) else None,
'claimed_at': item.get('claimed_at') if isinstance(item, dict) else None,
'pull_mode': str(mode or 'all'),
},
},
)
except Exception as exc:
h.ap.logger.warning(
f'Failed to write steering injection audit for run {run_id}: {exc}',
exc_info=True,
)
return handler.ActionResponse.success(data={'items': items})
# ================= State APIs (run-scoped, policy-enforced) =================
@h.action(PluginToRuntimeAction.STATE_GET)
async def state_get(data: dict[str, Any]) -> handler.ActionResponse:
"""Get a state value from host-owned state store.
Requires run_id authorization and scope enabled by state_policy.
"""
run_id = data.get('run_id')
scope = data.get('scope')
key = data.get('key')
caller_plugin_identity = data.get('caller_plugin_identity')
if not run_id:
return handler.ActionResponse.error(message='run_id is required')
if not scope:
return handler.ActionResponse.error(message='scope is required')
if not key:
return handler.ActionResponse.error(message='key is required')
session, error = await _validate_agent_run_session(
run_id,
caller_plugin_identity,
h.ap,
'State get',
api_capability='state',
)
if error:
return error
_state_context, scope_key, state_error = _resolve_state_scope(session, scope)
if state_error:
return state_error
# Get state from persistent store
from ..agent.runner.persistent_state_store import get_persistent_state_store
store = get_persistent_state_store(h.ap.persistence_mgr.get_db_engine())
try:
value = await store.state_get(scope_key, key)
return handler.ActionResponse.success(data={'value': value})
except Exception as e:
h.ap.logger.error(f'STATE_GET error: {e}', exc_info=True)
return handler.ActionResponse.error(message=f'State get error: {e}')
@h.action(PluginToRuntimeAction.STATE_SET)
async def state_set(data: dict[str, Any]) -> handler.ActionResponse:
"""Set a state value in host-owned state store.
Requires run_id authorization and scope enabled by state_policy.
Value must be JSON-serializable and size-limited.
"""
run_id = data.get('run_id')
scope = data.get('scope')
key = data.get('key')
value = data.get('value')
caller_plugin_identity = data.get('caller_plugin_identity')
if not run_id:
return handler.ActionResponse.error(message='run_id is required')
if not scope:
return handler.ActionResponse.error(message='scope is required')
if not key:
return handler.ActionResponse.error(message='key is required')
session, error = await _validate_agent_run_session(
run_id,
caller_plugin_identity,
h.ap,
'State set',
api_capability='state',
)
if error:
return error
state_context, scope_key, state_error = _resolve_state_scope(session, scope)
if state_error:
return state_error
# Get additional context for DB insert
runner_id = session.get('runner_id', '')
binding_identity = state_context.get('binding_identity', 'unknown')
# Set state in persistent store
from ..agent.runner.persistent_state_store import get_persistent_state_store
store = get_persistent_state_store(h.ap.persistence_mgr.get_db_engine())
try:
success, error = await store.state_set(
scope_key=scope_key,
state_key=key,
value=value,
runner_id=runner_id,
binding_identity=binding_identity,
scope=scope,
context=state_context,
logger=h.ap.logger,
)
if not success:
return handler.ActionResponse.error(message=error or 'Failed to set state')
return handler.ActionResponse.success(data={'success': True})
except Exception as e:
h.ap.logger.error(f'STATE_SET error: {e}', exc_info=True)
return handler.ActionResponse.error(message=f'State set error: {e}')
@h.action(PluginToRuntimeAction.STATE_DELETE)
async def state_delete(data: dict[str, Any]) -> handler.ActionResponse:
"""Delete a state value from host-owned state store.
Requires run_id authorization and scope enabled by state_policy.
"""
run_id = data.get('run_id')
scope = data.get('scope')
key = data.get('key')
caller_plugin_identity = data.get('caller_plugin_identity')
if not run_id:
return handler.ActionResponse.error(message='run_id is required')
if not scope:
return handler.ActionResponse.error(message='scope is required')
if not key:
return handler.ActionResponse.error(message='key is required')
session, error = await _validate_agent_run_session(
run_id,
caller_plugin_identity,
h.ap,
'State delete',
api_capability='state',
)
if error:
return error
_state_context, scope_key, state_error = _resolve_state_scope(session, scope)
if state_error:
return state_error
# Delete state from persistent store
from ..agent.runner.persistent_state_store import get_persistent_state_store
store = get_persistent_state_store(h.ap.persistence_mgr.get_db_engine())
try:
deleted = await store.state_delete(scope_key, key)
return handler.ActionResponse.success(data={'success': deleted})
except Exception as e:
h.ap.logger.error(f'STATE_DELETE error: {e}', exc_info=True)
return handler.ActionResponse.error(message=f'State delete error: {e}')
@h.action(PluginToRuntimeAction.STATE_LIST)
async def state_list(data: dict[str, Any]) -> handler.ActionResponse:
"""List state keys in a scope.
Requires run_id authorization and scope enabled by state_policy.
"""
run_id = data.get('run_id')
scope = data.get('scope')
prefix = data.get('prefix')
limit = data.get('limit', 100)
caller_plugin_identity = data.get('caller_plugin_identity')
if not run_id:
return handler.ActionResponse.error(message='run_id is required')
if not scope:
return handler.ActionResponse.error(message='scope is required')
# Validate limit
if not isinstance(limit, int) or limit <= 0:
limit = 100
limit = min(limit, 100) # Cap at 100
session, error = await _validate_agent_run_session(
run_id,
caller_plugin_identity,
h.ap,
'State list',
api_capability='state',
)
if error:
return error
_state_context, scope_key, state_error = _resolve_state_scope(session, scope)
if state_error:
return state_error
# List state keys from persistent store
from ..agent.runner.persistent_state_store import get_persistent_state_store
store = get_persistent_state_store(h.ap.persistence_mgr.get_db_engine())
try:
keys, has_more = await store.state_list(scope_key, prefix, limit)
return handler.ActionResponse.success(
data={
'keys': keys,
'has_more': has_more,
}
)
except Exception as e:
h.ap.logger.error(f'STATE_LIST error: {e}', exc_info=True)
return handler.ActionResponse.error(message=f'State list error: {e}')

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