feat: Add support for notification and request events, and enhance the event handling capabilities.

README.md

@@ -19,10 +19,9 @@ English / [简体中文](README_CN.md) / [繁體中文](README_TW.md) / [日本
 [![GitHub stars](https://img.shields.io/github/stars/langbot-app/LangBot?style=social)](https://github.com/langbot-app/LangBot/stargazers)
 
 <a href="https://langbot.app">Website</a> ｜
-<a href="https://docs.langbot.app/en/insight/features">Features</a> ｜
-<a href="https://docs.langbot.app/en/insight/guide">Docs</a> ｜
-<a href="https://docs.langbot.app/en/tags/readme">API</a> ｜
-<a href="https://space.langbot.app/cloud">Cloud</a> ｜
+<a href="https://docs.langbot.app/en/insight/features.html">Features</a> ｜
+<a href="https://docs.langbot.app/en/insight/guide.html">Docs</a> ｜
+<a href="https://docs.langbot.app/en/tags/readme.html">API</a> ｜
 <a href="https://space.langbot.app">Plugin Market</a> ｜
 <a href="https://langbot.featurebase.app/roadmap">Roadmap</a>
 
@@ -45,16 +44,12 @@ LangBot is an **open-source, production-grade platform** for building AI-powered
 - **Web Management Panel** — Configure, manage, and monitor your bots through an intuitive browser interface. No YAML editing required.
 - **Multi-Pipeline Architecture** — Different bots for different scenarios, with comprehensive monitoring and exception handling.
 
-[→ Learn more about all features](https://docs.langbot.app/en/insight/features)
+[→ Learn more about all features](https://docs.langbot.app/en/insight/features.html)
 
 ---
 
 ## Quick Start
 
-### ☁️ LangBot Cloud (Recommended)
-
-**[LangBot Cloud](https://space.langbot.app/cloud)** — Zero deployment, ready to use.
-
 ### One-Line Launch
 
 ```bash
@@ -76,7 +71,7 @@ docker compose up -d
 [![Deploy on Zeabur](https://zeabur.com/button.svg)](https://zeabur.com/en-US/templates/ZKTBDH)
 [![Deploy on Railway](https://railway.com/button.svg)](https://railway.app/template/yRrAyL?referralCode=vogKPF)
 
-**More options:** [Docker](https://docs.langbot.app/en/deploy/langbot/docker) · [Manual](https://docs.langbot.app/en/deploy/langbot/manual) · [BTPanel](https://docs.langbot.app/en/deploy/langbot/one-click/bt) · [Kubernetes](./docker/README_K8S.md)
+**More options:** [Docker](https://docs.langbot.app/en/deploy/langbot/docker.html) · [Manual](https://docs.langbot.app/en/deploy/langbot/manual.html) · [BTPanel](https://docs.langbot.app/en/deploy/langbot/one-click/bt.html) · [Kubernetes](./docker/README_K8S.md)
 
 ---
 
@@ -124,7 +119,7 @@ docker compose up -d
 | [接口 AI](https://jiekou.ai/) | Gateway | ✅ |
 | [302.AI](https://share.302.ai/SuTG99) | Gateway | ✅ |
 
-[→ View all integrations](https://docs.langbot.app/en/insight/features)
+[→ View all integrations](https://docs.langbot.app/en/insight/features.html)
 
 ---
 

README_CN.md

@@ -24,7 +24,6 @@
 <a href="https://docs.langbot.app/zh/insight/features.html">特性</a> ｜
 <a href="https://docs.langbot.app/zh/insight/guide.html">文档</a> ｜
 <a href="https://docs.langbot.app/zh/tags/readme.html">API</a> ｜
-<a href="https://space.langbot.app/cloud">Cloud</a> ｜
 <a href="https://space.langbot.app">插件市场</a> ｜
 <a href="https://langbot.featurebase.app/roadmap">路线图</a>
 
@@ -53,10 +52,6 @@ LangBot 是一个**开源的生产级平台**，用于构建 AI 驱动的即时
 
 ## 快速开始
 
-### ☁️ LangBot Cloud（推荐）
-
-**[LangBot Cloud](https://space.langbot.app/cloud)** — 免部署，开箱即用。
-
 ### 一键启动
 
 ```bash

README_ES.md

@@ -50,10 +50,6 @@ LangBot es una **plataforma de código abierto y grado de producción** para con
 
 ## Inicio Rápido
 
-### ☁️ LangBot Cloud (Recomendado)
-
-**[LangBot Cloud](https://space.langbot.app/cloud)** — Sin despliegue, listo para usar.
-
 ### Lanzamiento en una línea
 
 ```bash

README_FR.md

@@ -50,10 +50,6 @@ LangBot est une **plateforme open-source de niveau production** pour créer des
 
 ## Démarrage Rapide
 
-### ☁️ LangBot Cloud (Recommandé)
-
-**[LangBot Cloud](https://space.langbot.app/cloud)** — Sans déploiement, prêt à utiliser.
-
 ### Lancement en une ligne
 
 ```bash

README_JP.md

@@ -50,10 +50,6 @@ LangBot は、AI搭載のインスタントメッセージングボットを構
 
 ## クイックスタート
 
-### ☁️ LangBot Cloud（推奨）
-
-**[LangBot Cloud](https://space.langbot.app/cloud)** — デプロイ不要、すぐに使えます。
-
 ### ワンライン起動
 
 ```bash

README_KO.md

@@ -50,10 +50,6 @@ LangBot은 AI 기반 인스턴트 메시징 봇을 구축하기 위한 **오픈
 
 ## 빠른 시작
 
-### ☁️ LangBot Cloud (추천)
-
-**[LangBot Cloud](https://space.langbot.app/cloud)** — 배포 없이 바로 사용.
-
 ### 원라인 실행
 
 ```bash

README_RU.md

@@ -50,10 +50,6 @@ LangBot — это **платформа с открытым исходным к
 
 ## Быстрый старт
 
-### ☁️ LangBot Cloud (Рекомендуется)
-
-**[LangBot Cloud](https://space.langbot.app/cloud)** — Без развёртывания, готово к использованию.
-
 ### Запуск одной командой
 
 ```bash

README_TW.md

@@ -52,10 +52,6 @@ LangBot 是一個**開源的生產級平台**，用於建構 AI 驅動的即時
 
 ## 快速開始
 
-### ☁️ LangBot Cloud（推薦）
-
-**[LangBot Cloud](https://space.langbot.app/cloud)** — 免部署，開箱即用。
-
 ### 一鍵啟動
 
 ```bash

README_VI.md

@@ -50,10 +50,6 @@ LangBot là một **nền tảng mã nguồn mở, cấp sản xuất** để x
 
 ## Bắt đầu nhanh
 
-### ☁️ LangBot Cloud (Khuyên dùng)
-
-**[LangBot Cloud](https://space.langbot.app/cloud)** — Không cần triển khai, sẵn sàng sử dụng.
-
 ### Khởi chạy một dòng
 
 ```bash

pyproject.toml

@@ -1,6 +1,6 @@
 [project]
 name = "langbot"
-version = "4.9.0"
+version = "4.8.4"
 description = "Production-grade platform for building agentic IM bots"
 readme = "README.md"
 license-files = ["LICENSE"]
@@ -63,15 +63,14 @@ dependencies = [
     "langchain-text-splitters>=0.0.1",
     "chromadb>=0.4.24",
     "qdrant-client (>=1.15.1,<2.0.0)",
-    "pyseekdb==1.1.0.post3",
-    "langbot-plugin==0.3.0",
+    "pyseekdb==1.0.0b7",
+    "langbot-plugin==0.2.6",
     "asyncpg>=0.30.0",
     "line-bot-sdk>=3.19.0",
     "tboxsdk>=0.0.10",
     "boto3>=1.35.0",
     "pymilvus>=2.6.4",
     "pgvector>=0.4.1",
-    "botocore>=1.42.39",
 ]
 keywords = [
     "bot",

src/langbot/__init__.py

@@ -1,3 +1,3 @@
 """LangBot - Production-grade platform for building agentic IM bots"""
 
-__version__ = '4.9.0'
+__version__ = '4.8.4'

src/langbot/libs/wechatpad_api/util/http_util.py

@@ -1,5 +1,5 @@
 import requests
-from langbot.pkg.utils import httpclient
+import aiohttp
 
 
 def post_json(base_url, token, data=None):
@@ -63,16 +63,16 @@ async def async_request(
     """
     headers = {'Content-Type': 'application/json'}
     url = f'{base_url}?key={token_key}'
-    session = httpclient.get_session()
-    async with session.request(
-        method=method, url=url, params=params, headers=headers, data=data, json=json
-    ) as response:
-        response.raise_for_status()  # 如果状态码不是200，抛出异常
-        result = await response.json()
-        # print(result)
-        return result
-        # if result.get('Code') == 200:
-        #
-        #     return await result
-        # else:
-        #     raise RuntimeError("请求失败",response.text)
+    async with aiohttp.ClientSession() as session:
+        async with session.request(
+            method=method, url=url, params=params, headers=headers, data=data, json=json
+        ) as response:
+            response.raise_for_status()  # 如果状态码不是200，抛出异常
+            result = await response.json()
+            # print(result)
+            return result
+            # if result.get('Code') == 200:
+            #
+            #     return await result
+            # else:
+            #     raise RuntimeError("请求失败",response.text)

src/langbot/pkg/api/http/controller/groups/knowledge/base.py

@@ -13,10 +13,7 @@ class KnowledgeBaseRouterGroup(group.RouterGroup):
 
             elif quart.request.method == 'POST':
                 json_data = await quart.request.json
-                try:
-                    knowledge_base_uuid = await self.ap.knowledge_service.create_knowledge_base(json_data)
-                except ValueError as e:
-                    return self.http_status(400, -1, str(e))
+                knowledge_base_uuid = await self.ap.knowledge_service.create_knowledge_base(json_data)
                 return self.success(data={'uuid': knowledge_base_uuid})
 
             return self.http_status(405, -1, 'Method not allowed')
@@ -42,7 +39,7 @@ class KnowledgeBaseRouterGroup(group.RouterGroup):
             elif quart.request.method == 'PUT':
                 json_data = await quart.request.json
                 await self.ap.knowledge_service.update_knowledge_base(knowledge_base_uuid, json_data)
-                return self.success(data={'uuid': knowledge_base_uuid})
+                return self.success({})
 
             elif quart.request.method == 'DELETE':
                 await self.ap.knowledge_service.delete_knowledge_base(knowledge_base_uuid)
@@ -68,12 +65,8 @@ class KnowledgeBaseRouterGroup(group.RouterGroup):
                 if not file_id:
                     return self.http_status(400, -1, 'File ID is required')
 
-                parser_plugin_id = json_data.get('parser_plugin_id')
-
                 # 调用服务层方法将文件与知识库关联
-                task_id = await self.ap.knowledge_service.store_file(
-                    knowledge_base_uuid, file_id, parser_plugin_id=parser_plugin_id
-                )
+                task_id = await self.ap.knowledge_service.store_file(knowledge_base_uuid, file_id)
                 return self.success(
                     {
                         'task_id': task_id,
@@ -97,13 +90,5 @@ class KnowledgeBaseRouterGroup(group.RouterGroup):
         async def retrieve_knowledge_base(knowledge_base_uuid: str) -> str:
             json_data = await quart.request.json
             query = json_data.get('query')
-
-            if not query or not query.strip():
-                return self.http_status(400, -1, 'Query is required and cannot be empty')
-
-            # Extract retrieval_settings to allow dynamic control over Knowledge Engine behavior (e.g. top_k, filters)
-            retrieval_settings = json_data.get('retrieval_settings', {})
-            results = await self.ap.knowledge_service.retrieve_knowledge_base(
-                knowledge_base_uuid, query, retrieval_settings
-            )
+            results = await self.ap.knowledge_service.retrieve_knowledge_base(knowledge_base_uuid, query)
             return self.success(data={'results': results})

src/langbot/pkg/api/http/controller/groups/knowledge/engines.py

@@ -1,45 +0,0 @@
-import quart
-from urllib.parse import unquote
-from ... import group
-
-
-@group.group_class('knowledge_engines', '/api/v1/knowledge/engines')
-class KnowledgeEnginesRouterGroup(group.RouterGroup):
-    async def initialize(self) -> None:
-        @self.route('', methods=['GET'], auth_type=group.AuthType.USER_TOKEN_OR_API_KEY)
-        async def list_knowledge_engines() -> quart.Response:
-            """List all available Knowledge Engines from plugins.
-
-            Returns a list of Knowledge Engines with their capabilities and configuration schemas.
-            This is used by the frontend to render the knowledge base creation wizard.
-            """
-            engines = await self.ap.knowledge_service.list_knowledge_engines()
-            return self.success(data={'engines': engines})
-
-        @self.route(
-            '/<path:plugin_id>/creation-schema', methods=['GET'], auth_type=group.AuthType.USER_TOKEN_OR_API_KEY
-        )
-        async def get_engine_creation_schema(plugin_id: str) -> quart.Response:
-            """Get creation settings schema for a specific Knowledge Engine.
-
-            plugin_id is in 'author/name' format, captured via <path:> converter.
-            """
-            plugin_id = unquote(plugin_id)
-            if '/' not in plugin_id:
-                return self.http_status(400, -1, 'Invalid plugin_id format. Expected author/name.')
-            schema = await self.ap.knowledge_service.get_engine_creation_schema(plugin_id)
-            return self.success(data={'schema': schema})
-
-        @self.route(
-            '/<path:plugin_id>/retrieval-schema', methods=['GET'], auth_type=group.AuthType.USER_TOKEN_OR_API_KEY
-        )
-        async def get_engine_retrieval_schema(plugin_id: str) -> quart.Response:
-            """Get retrieval settings schema for a specific Knowledge Engine.
-
-            plugin_id is in 'author/name' format, captured via <path:> converter.
-            """
-            plugin_id = unquote(plugin_id)
-            if '/' not in plugin_id:
-                return self.http_status(400, -1, 'Invalid plugin_id format. Expected author/name.')
-            schema = await self.ap.knowledge_service.get_engine_retrieval_schema(plugin_id)
-            return self.success(data={'schema': schema})

src/langbot/pkg/api/http/controller/groups/knowledge/external.py

@@ -0,0 +1,61 @@
+import quart
+from ... import group
+
+
+@group.group_class('external_knowledge_base', '/api/v1/knowledge/external-bases')
+class ExternalKnowledgeBaseRouterGroup(group.RouterGroup):
+    async def initialize(self) -> None:
+        @self.route('/retrievers', methods=['GET'])
+        async def list_knowledge_retrievers() -> quart.Response:
+            """List all available knowledge retrievers from plugins."""
+            retrievers = await self.ap.plugin_connector.list_knowledge_retrievers()
+            return self.success(data={'retrievers': retrievers})
+
+        @self.route('', methods=['POST', 'GET'])
+        async def handle_external_knowledge_bases() -> quart.Response:
+            if quart.request.method == 'GET':
+                external_kbs = await self.ap.external_kb_service.get_external_knowledge_bases()
+                return self.success(data={'bases': external_kbs})
+
+            elif quart.request.method == 'POST':
+                json_data = await quart.request.json
+                kb_uuid = await self.ap.external_kb_service.create_external_knowledge_base(json_data)
+                return self.success(data={'uuid': kb_uuid})
+
+            return self.http_status(405, -1, 'Method not allowed')
+
+        @self.route(
+            '/<kb_uuid>',
+            methods=['GET', 'DELETE', 'PUT'],
+        )
+        async def handle_specific_external_knowledge_base(kb_uuid: str) -> quart.Response:
+            if quart.request.method == 'GET':
+                external_kb = await self.ap.external_kb_service.get_external_knowledge_base(kb_uuid)
+
+                if external_kb is None:
+                    return self.http_status(404, -1, 'external knowledge base not found')
+
+                return self.success(
+                    data={
+                        'base': external_kb,
+                    }
+                )
+
+            elif quart.request.method == 'PUT':
+                json_data = await quart.request.json
+                await self.ap.external_kb_service.update_external_knowledge_base(kb_uuid, json_data)
+                return self.success({})
+
+            elif quart.request.method == 'DELETE':
+                await self.ap.external_kb_service.delete_external_knowledge_base(kb_uuid)
+                return self.success({})
+
+        @self.route(
+            '/<kb_uuid>/retrieve',
+            methods=['POST'],
+        )
+        async def retrieve_external_knowledge_base(kb_uuid: str) -> str:
+            json_data = await quart.request.json
+            query = json_data.get('query')
+            results = await self.ap.external_kb_service.retrieve_external_knowledge_base(kb_uuid, query)
+            return self.success(data={'results': results})

src/langbot/pkg/api/http/controller/groups/knowledge/migration.py

@@ -1,372 +0,0 @@
-import asyncio
-import json
-
-import httpx
-import quart
-import sqlalchemy
-
-from ... import group
-from ......core import taskmgr
-from ......entity.persistence import metadata as persistence_metadata
-from langbot_plugin.runtime.plugin.mgr import PluginInstallSource
-
-LANGRAG_PLUGIN_AUTHOR = 'langbot-team'
-LANGRAG_PLUGIN_NAME = 'LangRAG'
-LANGRAG_PLUGIN_ID = f'{LANGRAG_PLUGIN_AUTHOR}/{LANGRAG_PLUGIN_NAME}'
-DEFAULT_SPACE_URL = 'https://space.langbot.app'
-
-# Old Retriever plugin_name -> New Connector plugin_name
-EXTERNAL_PLUGIN_NAME_MAPPING = {
-    'DifyDatasetsRetriever': 'DifyDatasetsConnector',
-    'RAGFlowRetriever': 'RAGFlowConnector',
-    'FastGPTRetriever': 'FastGPTConnector',
-}
-
-# Per-plugin: which old retriever_config fields belong to creation_settings.
-# Remaining fields go to retrieval_settings.
-# None means ALL fields go to creation_settings (no retrieval_schema).
-EXTERNAL_PLUGIN_CREATION_FIELDS: dict[str, set[str] | None] = {
-    'langbot-team/DifyDatasetsConnector': {'api_base_url', 'dify_apikey', 'dataset_id'},
-    'langbot-team/RAGFlowConnector': {'api_base_url', 'api_key', 'dataset_ids'},
-    'langbot-team/FastGPTConnector': None,  # all fields -> creation_settings
-}
-
-
-@group.group_class('knowledge/migration', '/api/v1/knowledge/migration')
-class KnowledgeMigrationRouterGroup(group.RouterGroup):
-    async def _get_migration_flag(self) -> bool:
-        """Check if rag_plugin_migration_needed flag is set."""
-        result = await self.ap.persistence_mgr.execute_async(
-            sqlalchemy.select(persistence_metadata.Metadata).where(
-                persistence_metadata.Metadata.key == 'rag_plugin_migration_needed'
-            )
-        )
-        row = result.first()
-        return row is not None and row.value == 'true'
-
-    async def _set_migration_flag(self, value: str):
-        """Set rag_plugin_migration_needed flag."""
-        await self.ap.persistence_mgr.execute_async(
-            sqlalchemy.update(persistence_metadata.Metadata)
-            .where(persistence_metadata.Metadata.key == 'rag_plugin_migration_needed')
-            .values(value=value)
-        )
-
-    async def _table_exists(self, table_name: str) -> bool:
-        """Check if a table exists."""
-        if self.ap.persistence_mgr.db.name == 'postgresql':
-            result = await self.ap.persistence_mgr.execute_async(
-                sqlalchemy.text(
-                    'SELECT EXISTS (SELECT FROM information_schema.tables WHERE table_name = :table_name);'
-                ).bindparams(table_name=table_name)
-            )
-            return result.scalar()
-        else:
-            result = await self.ap.persistence_mgr.execute_async(
-                sqlalchemy.text("SELECT name FROM sqlite_master WHERE type='table' AND name=:table_name;").bindparams(
-                    table_name=table_name
-                )
-            )
-            return result.first() is not None
-
-    async def _install_plugin_from_marketplace(
-        self, plugin_id: str, task_context: taskmgr.TaskContext, space_url: str
-    ) -> None:
-        """Install a single plugin from the marketplace."""
-        p_author, p_name = plugin_id.split('/', 1)
-        self.ap.logger.info(f'RAG migration: installing plugin {plugin_id} from marketplace...')
-        task_context.trace(f'Installing plugin {plugin_id} from marketplace...')
-
-        async with httpx.AsyncClient(trust_env=True, timeout=15) as client:
-            resp = await client.get(f'{space_url}/api/v1/marketplace/plugins/{p_author}/{p_name}')
-            resp.raise_for_status()
-            p_data = resp.json().get('data', {}).get('plugin', {})
-            p_version = p_data.get('latest_version')
-            if not p_version:
-                raise Exception(f'Could not determine latest version for {plugin_id}')
-
-        await self.ap.plugin_connector.install_plugin(
-            PluginInstallSource.MARKETPLACE,
-            {
-                'plugin_author': p_author,
-                'plugin_name': p_name,
-                'plugin_version': p_version,
-            },
-            task_context=task_context,
-        )
-        self.ap.logger.info(f'RAG migration: plugin {plugin_id} install request sent.')
-
-    async def _execute_rag_migration(self, task_context: taskmgr.TaskContext, install_plugin: bool = True):
-        """Execute RAG migration: install required plugins and restore backup data."""
-        warnings = []
-
-        # Collect all plugins we need: LangRAG (always) + connector plugins (from external KBs)
-        needed_plugins: dict[str, str] = {
-            LANGRAG_PLUGIN_ID: LANGRAG_PLUGIN_NAME,
-        }
-
-        has_external = await self._table_exists('external_knowledge_bases')
-        if has_external:
-            result = await self.ap.persistence_mgr.execute_async(
-                sqlalchemy.text('SELECT DISTINCT plugin_author, plugin_name FROM external_knowledge_bases;')
-            )
-            for row in result.fetchall():
-                plugin_author = row[0] or ''
-                plugin_name = row[1] or ''
-                mapped_name = EXTERNAL_PLUGIN_NAME_MAPPING.get(plugin_name, plugin_name)
-                plugin_id = f'{plugin_author}/{mapped_name}'
-                if plugin_id not in needed_plugins:
-                    needed_plugins[plugin_id] = mapped_name
-
-        self.ap.logger.info(f'RAG migration: plugins needed: {list(needed_plugins.keys())}')
-
-        if install_plugin:
-            # Step 1: Install all required plugins from marketplace
-            task_context.trace('Installing required plugins...', action='install-plugin')
-            space_url = self.ap.instance_config.data.get('space', {}).get('url', DEFAULT_SPACE_URL).rstrip('/')
-
-            for plugin_id in needed_plugins:
-                try:
-                    await self._install_plugin_from_marketplace(plugin_id, task_context, space_url)
-                except Exception as e:
-                    self.ap.logger.warning(f'RAG migration: plugin {plugin_id} install returned: {e}')
-                    task_context.trace(f'Plugin install note ({plugin_id}): {e}')
-
-            # Step 2: Wait for all plugins to become available as knowledge engines
-            task_context.trace(
-                f'Waiting for plugins to become available: {list(needed_plugins.keys())}...',
-                action='wait-plugin',
-            )
-            max_retries = 30
-            engine_id_set: set[str] = set()
-            for i in range(max_retries):
-                try:
-                    engines = await self.ap.plugin_connector.list_knowledge_engines()
-                    engine_id_set = {e.get('plugin_id') for e in engines}
-                except Exception:
-                    pass
-                if all(pid in engine_id_set for pid in needed_plugins):
-                    self.ap.logger.info(f'RAG migration: all plugins ready: {engine_id_set}')
-                    task_context.trace('All required plugins are ready.')
-                    break
-                if i == max_retries - 1:
-                    still_missing = [pid for pid in needed_plugins if pid not in engine_id_set]
-                    warning = f'Plugin(s) {still_missing} did not become available after {max_retries} retries'
-                    self.ap.logger.warning(f'RAG migration: {warning}')
-                    warnings.append(warning)
-                    task_context.trace(warning)
-                await asyncio.sleep(2)
-        else:
-            try:
-                engines = await self.ap.plugin_connector.list_knowledge_engines()
-                engine_id_set = {e.get('plugin_id') for e in engines}
-            except Exception:
-                engine_id_set = set()
-
-        # Step 3: Restore internal knowledge bases from backup
-        task_context.trace('Restoring internal knowledge bases...', action='restore-internal')
-        if await self._table_exists('knowledge_bases_backup'):
-            result = await self.ap.persistence_mgr.execute_async(
-                sqlalchemy.text('SELECT * FROM knowledge_bases_backup;')
-            )
-            rows = result.fetchall()
-            columns = result.keys()
-
-            for row in rows:
-                row_dict = dict(zip(columns, row))
-                kb_uuid = row_dict.get('uuid')
-                name = row_dict.get('name', 'Untitled')
-                description = row_dict.get('description', '')
-                emoji = row_dict.get('emoji', '\U0001f4da')
-                embedding_model_uuid = row_dict.get('embedding_model_uuid', '')
-                top_k = row_dict.get('top_k', 5)
-                created_at = row_dict.get('created_at')
-                updated_at = row_dict.get('updated_at')
-
-                creation_settings = json.dumps({'embedding_model_uuid': embedding_model_uuid})
-                retrieval_settings = json.dumps({'top_k': top_k})
-
-                await self.ap.persistence_mgr.execute_async(
-                    sqlalchemy.text(
-                        'INSERT INTO knowledge_bases '
-                        '(uuid, name, description, emoji, created_at, updated_at, '
-                        'knowledge_engine_plugin_id, collection_id, creation_settings, retrieval_settings) '
-                        'VALUES (:uuid, :name, :description, :emoji, :created_at, :updated_at, '
-                        ':plugin_id, :collection_id, :creation_settings, :retrieval_settings);'
-                    ).bindparams(
-                        uuid=kb_uuid,
-                        name=name,
-                        description=description,
-                        emoji=emoji,
-                        created_at=created_at,
-                        updated_at=updated_at,
-                        plugin_id=LANGRAG_PLUGIN_ID,
-                        collection_id=kb_uuid,
-                        creation_settings=creation_settings,
-                        retrieval_settings=retrieval_settings,
-                    )
-                )
-
-                try:
-                    config = {'embedding_model_uuid': embedding_model_uuid}
-                    await self.ap.plugin_connector.rag_on_kb_create(LANGRAG_PLUGIN_ID, kb_uuid, config)
-                    task_context.trace(f'Restored internal KB: {name} ({kb_uuid})')
-                except Exception as e:
-                    warning = f'Failed to notify plugin for KB {name} ({kb_uuid}): {e}'
-                    warnings.append(warning)
-                    task_context.trace(warning)
-
-            await self.ap.rag_mgr.load_knowledge_bases_from_db()
-
-        # Step 4: Restore external knowledge bases
-        task_context.trace('Restoring external knowledge bases...', action='restore-external')
-        if has_external:
-            result = await self.ap.persistence_mgr.execute_async(
-                sqlalchemy.text('SELECT * FROM external_knowledge_bases;')
-            )
-            rows = result.fetchall()
-            columns = result.keys()
-
-            self.ap.logger.info(
-                f'RAG migration: {len(rows)} external KB(s) to restore. Available engines: {engine_id_set}'
-            )
-            task_context.trace(f'Found {len(rows)} external KB(s). Available engines: {engine_id_set}')
-
-            for row in rows:
-                row_dict = dict(zip(columns, row))
-                kb_uuid = row_dict.get('uuid')
-                name = row_dict.get('name', 'Untitled')
-                description = row_dict.get('description', '')
-                emoji = row_dict.get('emoji', '\U0001f517')
-                plugin_author = row_dict.get('plugin_author', '')
-                plugin_name = row_dict.get('plugin_name', '')
-                retriever_config = row_dict.get('retriever_config', {})
-                created_at = row_dict.get('created_at')
-
-                mapped_plugin_name = EXTERNAL_PLUGIN_NAME_MAPPING.get(plugin_name, plugin_name)
-                external_plugin_id = f'{plugin_author}/{mapped_plugin_name}'
-
-                self.ap.logger.info(
-                    f'RAG migration: processing external KB "{name}" ({kb_uuid}), '
-                    f'plugin: {plugin_author}/{plugin_name} -> {external_plugin_id}'
-                )
-
-                if isinstance(retriever_config, str):
-                    try:
-                        retriever_config = json.loads(retriever_config)
-                    except (json.JSONDecodeError, TypeError):
-                        retriever_config = {}
-
-                creation_fields = EXTERNAL_PLUGIN_CREATION_FIELDS.get(external_plugin_id)
-                if creation_fields is None:
-                    creation_settings_dict = retriever_config
-                    retrieval_settings_dict = {}
-                else:
-                    creation_settings_dict = {k: v for k, v in retriever_config.items() if k in creation_fields}
-                    retrieval_settings_dict = {k: v for k, v in retriever_config.items() if k not in creation_fields}
-
-                await self.ap.persistence_mgr.execute_async(
-                    sqlalchemy.text(
-                        'INSERT INTO knowledge_bases '
-                        '(uuid, name, description, emoji, created_at, updated_at, '
-                        'knowledge_engine_plugin_id, collection_id, creation_settings, retrieval_settings) '
-                        'VALUES (:uuid, :name, :description, :emoji, :created_at, :updated_at, '
-                        ':plugin_id, :collection_id, :creation_settings, :retrieval_settings);'
-                    ).bindparams(
-                        uuid=kb_uuid,
-                        name=name,
-                        description=description,
-                        emoji=emoji,
-                        created_at=created_at,
-                        updated_at=created_at,
-                        plugin_id=external_plugin_id,
-                        collection_id=kb_uuid,
-                        creation_settings=json.dumps(creation_settings_dict),
-                        retrieval_settings=json.dumps(retrieval_settings_dict),
-                    )
-                )
-
-                if external_plugin_id not in engine_id_set:
-                    warning = (
-                        f'External KB "{name}" ({kb_uuid}) record saved, but plugin {external_plugin_id} '
-                        f'is not installed yet. Install the connector plugin to use it.'
-                    )
-                    warnings.append(warning)
-                    task_context.trace(warning)
-                else:
-                    try:
-                        await self.ap.plugin_connector.rag_on_kb_create(
-                            external_plugin_id, kb_uuid, creation_settings_dict
-                        )
-                        task_context.trace(f'Restored external KB: {name} ({kb_uuid})')
-                    except Exception as e:
-                        warning = f'Failed to notify plugin for external KB {name} ({kb_uuid}): {e}'
-                        warnings.append(warning)
-                        task_context.trace(warning)
-
-            await self.ap.rag_mgr.load_knowledge_bases_from_db()
-
-        # Step 5: Clear migration flag
-        await self._set_migration_flag('false')
-        task_context.trace('RAG migration completed.', action='done')
-
-        if warnings:
-            task_context.trace(f'Completed with {len(warnings)} warning(s).')
-
-    async def initialize(self) -> None:
-        @self.route('/status', methods=['GET'], auth_type=group.AuthType.USER_TOKEN)
-        async def _() -> str:
-            needed = await self._get_migration_flag()
-
-            internal_kb_count = 0
-            external_kb_count = 0
-
-            if needed:
-                if await self._table_exists('knowledge_bases_backup'):
-                    result = await self.ap.persistence_mgr.execute_async(
-                        sqlalchemy.text('SELECT COUNT(*) FROM knowledge_bases_backup;')
-                    )
-                    internal_kb_count = result.scalar() or 0
-
-                if await self._table_exists('external_knowledge_bases'):
-                    result = await self.ap.persistence_mgr.execute_async(
-                        sqlalchemy.text('SELECT COUNT(*) FROM external_knowledge_bases;')
-                    )
-                    external_kb_count = result.scalar() or 0
-
-            return self.success(
-                data={
-                    'needed': needed,
-                    'internal_kb_count': internal_kb_count,
-                    'external_kb_count': external_kb_count,
-                }
-            )
-
-        @self.route('/execute', methods=['POST'], auth_type=group.AuthType.USER_TOKEN)
-        async def _() -> str:
-            needed = await self._get_migration_flag()
-            if not needed:
-                return self.http_status(400, -1, 'RAG migration is not needed')
-
-            data = await quart.request.get_json(silent=True) or {}
-            install_plugin = data.get('install_plugin', True)
-
-            ctx = taskmgr.TaskContext.new()
-            wrapper = self.ap.task_mgr.create_user_task(
-                self._execute_rag_migration(task_context=ctx, install_plugin=install_plugin),
-                kind='rag-migration',
-                name='rag-migration-execute',
-                label='Migrating knowledge bases to plugin architecture',
-                context=ctx,
-            )
-
-            return self.success(data={'task_id': wrapper.id})
-
-        @self.route('/dismiss', methods=['POST'], auth_type=group.AuthType.USER_TOKEN)
-        async def _() -> str:
-            needed = await self._get_migration_flag()
-            if not needed:
-                return self.http_status(400, -1, 'RAG migration is not needed')
-
-            await self._set_migration_flag('false')
-            return self.success()

src/langbot/pkg/api/http/controller/groups/knowledge/parsers.py

@@ -1,16 +0,0 @@
-import quart
-from ... import group
-
-
-@group.group_class('parsers', '/api/v1/knowledge/parsers')
-class ParsersRouterGroup(group.RouterGroup):
-    async def initialize(self) -> None:
-        @self.route('', methods=['GET'], auth_type=group.AuthType.USER_TOKEN_OR_API_KEY)
-        async def list_parsers() -> quart.Response:
-            """List all available parsers from plugins.
-
-            Optional query parameter `mime_type` to filter parsers by supported MIME type.
-            """
-            mime_type = quart.request.args.get('mime_type')
-            parsers = await self.ap.knowledge_service.list_parsers(mime_type)
-            return self.success(data={'parsers': parsers})

src/langbot/pkg/api/http/controller/groups/monitoring.py

@@ -52,7 +52,6 @@ class MonitoringRouterGroup(group.RouterGroup):
             # Parse query parameters
             bot_ids = quart.request.args.getlist('botId')
             pipeline_ids = quart.request.args.getlist('pipelineId')
-            session_ids = quart.request.args.getlist('sessionId')
             start_time_str = quart.request.args.get('startTime')
             end_time_str = quart.request.args.get('endTime')
             limit = int(quart.request.args.get('limit', 100))
@@ -65,7 +64,6 @@ class MonitoringRouterGroup(group.RouterGroup):
             messages, total = await self.ap.monitoring_service.get_messages(
                 bot_ids=bot_ids if bot_ids else None,
                 pipeline_ids=pipeline_ids if pipeline_ids else None,
-                session_ids=session_ids if session_ids else None,
                 start_time=start_time,
                 end_time=end_time,
                 limit=limit,

src/langbot/pkg/api/http/controller/groups/pipelines/pipelines.py

@@ -68,7 +68,7 @@ class PipelinesRouterGroup(group.RouterGroup):
                     return self.http_status(404, -1, 'pipeline not found')
 
                 # Only include plugins with pipeline-related components (Command, EventListener, Tool)
-                # Plugins that only have KnowledgeEngine components are not suitable for pipeline extensions
+                # Plugins that only have KnowledgeRetriever components are not suitable for pipeline extensions
                 pipeline_component_kinds = ['Command', 'EventListener', 'Tool']
                 plugins = await self.ap.plugin_connector.list_plugins(component_kinds=pipeline_component_kinds)
                 mcp_servers = await self.ap.mcp_service.get_mcp_servers(contain_runtime_info=True)

src/langbot/pkg/api/http/controller/groups/survey.py

@@ -1,47 +0,0 @@
-import quart
-
-from .. import group
-
-
-@group.group_class('survey', '/api/v1/survey')
-class SurveyRouterGroup(group.RouterGroup):
-    async def initialize(self) -> None:
-        @self.route('/pending', methods=['GET'], auth_type=group.AuthType.USER_TOKEN)
-        async def _get_pending() -> str:
-            """Get pending survey for the frontend to display."""
-            survey = self.ap.survey.get_pending_survey() if self.ap.survey else None
-            return self.success(data={'survey': survey})
-
-        @self.route('/respond', methods=['POST'], auth_type=group.AuthType.USER_TOKEN)
-        async def _respond() -> str:
-            """Submit survey response."""
-            json_data = await quart.request.json
-            survey_id = json_data.get('survey_id')
-            answers = json_data.get('answers', {})
-            completed = json_data.get('completed', True)
-
-            if not survey_id:
-                return self.fail(1, 'survey_id required')
-
-            if self.ap.survey:
-                ok = await self.ap.survey.submit_response(survey_id, answers, completed)
-                if ok:
-                    return self.success()
-                return self.fail(2, 'Failed to submit response')
-            return self.fail(3, 'Survey not available')
-
-        @self.route('/dismiss', methods=['POST'], auth_type=group.AuthType.USER_TOKEN)
-        async def _dismiss() -> str:
-            """Dismiss survey."""
-            json_data = await quart.request.json
-            survey_id = json_data.get('survey_id')
-
-            if not survey_id:
-                return self.fail(1, 'survey_id required')
-
-            if self.ap.survey:
-                ok = await self.ap.survey.dismiss_survey(survey_id)
-                if ok:
-                    return self.success()
-                return self.fail(2, 'Failed to dismiss')
-            return self.fail(3, 'Survey not available')

src/langbot/pkg/api/http/service/external_kb.py

@@ -0,0 +1,80 @@
+from __future__ import annotations
+
+from ....core import app
+import sqlalchemy
+from langbot.pkg.entity.persistence import rag as persistence_rag
+import uuid
+
+
+class ExternalKBService:
+    """External KB service"""
+
+    ap: app.Application
+
+    def __init__(self, ap: app.Application) -> None:
+        self.ap = ap
+
+    # External Knowledge Base methods
+    async def get_external_knowledge_bases(self) -> list[dict]:
+        result = await self.ap.persistence_mgr.execute_async(sqlalchemy.select(persistence_rag.ExternalKnowledgeBase))
+        external_kbs = result.all()
+        return [
+            self.ap.persistence_mgr.serialize_model(persistence_rag.ExternalKnowledgeBase, external_kb)
+            for external_kb in external_kbs
+        ]
+
+    async def get_external_knowledge_base(self, kb_uuid: str) -> dict | None:
+        result = await self.ap.persistence_mgr.execute_async(
+            sqlalchemy.select(persistence_rag.ExternalKnowledgeBase).where(
+                persistence_rag.ExternalKnowledgeBase.uuid == kb_uuid
+            )
+        )
+        external_kb = result.first()
+        if external_kb is None:
+            return None
+        return self.ap.persistence_mgr.serialize_model(persistence_rag.ExternalKnowledgeBase, external_kb)
+
+    async def create_external_knowledge_base(self, kb_data: dict) -> str:
+        kb_data['uuid'] = str(uuid.uuid4())
+        await self.ap.persistence_mgr.execute_async(
+            sqlalchemy.insert(persistence_rag.ExternalKnowledgeBase).values(kb_data)
+        )
+
+        kb = await self.get_external_knowledge_base(kb_data['uuid'])
+
+        await self.ap.rag_mgr.load_external_knowledge_base(kb)
+
+        return kb_data['uuid']
+
+    async def retrieve_external_knowledge_base(self, kb_uuid: str, query: str) -> list[dict]:
+        """Retrieve external knowledge base"""
+        runtime_kb = await self.ap.rag_mgr.get_knowledge_base_by_uuid(kb_uuid)
+        if runtime_kb is None:
+            raise Exception('Knowledge base not found')
+        return [
+            result.model_dump() for result in await runtime_kb.retrieve(query, 5)
+        ]  # top_k is just a placeholder for external knowledge base
+
+    async def update_external_knowledge_base(self, kb_uuid: str, kb_data: dict) -> None:
+        if 'uuid' in kb_data:
+            del kb_data['uuid']
+
+        await self.ap.persistence_mgr.execute_async(
+            sqlalchemy.update(persistence_rag.ExternalKnowledgeBase)
+            .values(kb_data)
+            .where(persistence_rag.ExternalKnowledgeBase.uuid == kb_uuid)
+        )
+        await self.ap.rag_mgr.remove_knowledge_base_from_runtime(kb_uuid)
+
+        kb = await self.get_external_knowledge_base(kb_uuid)
+
+        await self.ap.rag_mgr.load_external_knowledge_base(kb)
+
+    async def delete_external_knowledge_base(self, kb_uuid: str) -> None:
+        await self.ap.persistence_mgr.execute_async(
+            sqlalchemy.delete(persistence_rag.ExternalKnowledgeBase).where(
+                persistence_rag.ExternalKnowledgeBase.uuid == kb_uuid
+            )
+        )
+
+        await self.ap.rag_mgr.delete_knowledge_base(kb_uuid)

src/langbot/pkg/api/http/service/knowledge.py

@@ -1,5 +1,6 @@
 from __future__ import annotations
 
+import uuid
 import sqlalchemy
 
 from ....core import app
@@ -16,77 +17,64 @@ class KnowledgeService:
 
     async def get_knowledge_bases(self) -> list[dict]:
         """获取所有知识库"""
-        return await self.ap.rag_mgr.get_all_knowledge_base_details()
+        result = await self.ap.persistence_mgr.execute_async(sqlalchemy.select(persistence_rag.KnowledgeBase))
+        knowledge_bases = result.all()
+        return [
+            self.ap.persistence_mgr.serialize_model(persistence_rag.KnowledgeBase, knowledge_base)
+            for knowledge_base in knowledge_bases
+        ]
 
     async def get_knowledge_base(self, kb_uuid: str) -> dict | None:
         """获取知识库"""
-        return await self.ap.rag_mgr.get_knowledge_base_details(kb_uuid)
+        result = await self.ap.persistence_mgr.execute_async(
+            sqlalchemy.select(persistence_rag.KnowledgeBase).where(persistence_rag.KnowledgeBase.uuid == kb_uuid)
+        )
+        knowledge_base = result.first()
+        if knowledge_base is None:
+            return None
+        return self.ap.persistence_mgr.serialize_model(persistence_rag.KnowledgeBase, knowledge_base)
 
     async def create_knowledge_base(self, kb_data: dict) -> str:
         """创建知识库"""
-        # In new architecture, we delegate entirely to RAGManager which uses plugins.
-        # Legacy internal KB creation is removed.
+        kb_data['uuid'] = str(uuid.uuid4())
+        await self.ap.persistence_mgr.execute_async(sqlalchemy.insert(persistence_rag.KnowledgeBase).values(kb_data))
 
-        knowledge_engine_plugin_id = kb_data.get('knowledge_engine_plugin_id')
-        if not knowledge_engine_plugin_id:
-            raise ValueError('knowledge_engine_plugin_id is required')
+        kb = await self.get_knowledge_base(kb_data['uuid'])
 
-        kb = await self.ap.rag_mgr.create_knowledge_base(
-            name=kb_data.get('name', 'Untitled'),
-            knowledge_engine_plugin_id=knowledge_engine_plugin_id,
-            creation_settings=kb_data.get('creation_settings', {}),
-            retrieval_settings=kb_data.get('retrieval_settings', {}),
-            description=kb_data.get('description', ''),
-        )
-        return kb.uuid
+        await self.ap.rag_mgr.load_knowledge_base(kb)
+
+        return kb_data['uuid']
 
     async def update_knowledge_base(self, kb_uuid: str, kb_data: dict) -> None:
         """更新知识库"""
-        # Filter to only mutable fields
-        filtered_data = {k: v for k, v in kb_data.items() if k in persistence_rag.KnowledgeBase.MUTABLE_FIELDS}
+        if 'uuid' in kb_data:
+            del kb_data['uuid']
 
-        if not filtered_data:
-            return
+        if 'embedding_model_uuid' in kb_data:
+            del kb_data['embedding_model_uuid']
 
         await self.ap.persistence_mgr.execute_async(
             sqlalchemy.update(persistence_rag.KnowledgeBase)
-            .values(filtered_data)
+            .values(kb_data)
             .where(persistence_rag.KnowledgeBase.uuid == kb_uuid)
         )
         await self.ap.rag_mgr.remove_knowledge_base_from_runtime(kb_uuid)
 
         kb = await self.get_knowledge_base(kb_uuid)
-        if kb is None:
-            raise Exception('Knowledge base not found after update')
 
         await self.ap.rag_mgr.load_knowledge_base(kb)
 
-    async def _check_doc_capability(self, kb_uuid: str, operation: str) -> None:
-        """Check if the KB's Knowledge Engine supports document operations.
-
-        Args:
-            kb_uuid: Knowledge base UUID.
-            operation: Human-readable operation name for error messages.
-
-        Raises:
-            Exception: If the KB does not support doc_ingestion.
-        """
-        kb_info = await self.ap.rag_mgr.get_knowledge_base_details(kb_uuid)
-        if not kb_info:
-            raise Exception('Knowledge base not found')
-        capabilities = kb_info.get('knowledge_engine', {}).get('capabilities', [])
-        if 'doc_ingestion' not in capabilities:
-            raise Exception(f'This knowledge base does not support {operation}')
-
-    async def store_file(self, kb_uuid: str, file_id: str, parser_plugin_id: str | None = None) -> str:
+    async def store_file(self, kb_uuid: str, file_id: str) -> int:
         """存储文件"""
+        # await self.ap.persistence_mgr.execute_async(sqlalchemy.insert(persistence_rag.File).values(kb_id=kb_uuid, file_id=file_id))
+        # await self.ap.rag_mgr.store_file(file_id)
         runtime_kb = await self.ap.rag_mgr.get_knowledge_base_by_uuid(kb_uuid)
         if runtime_kb is None:
             raise Exception('Knowledge base not found')
-
-        await self._check_doc_capability(kb_uuid, 'document upload')
-
-        result = await runtime_kb.store_file(file_id, parser_plugin_id=parser_plugin_id)
+        # Only internal KBs support file storage
+        if runtime_kb.get_type() != 'internal':
+            raise Exception('Only internal knowledge bases support file storage')
+        result = await runtime_kb.store_file(file_id)
 
         # Update the KB's updated_at timestamp
         await self.ap.persistence_mgr.execute_async(
@@ -97,18 +85,14 @@ class KnowledgeService:
 
         return result
 
-    async def retrieve_knowledge_base(
-        self, kb_uuid: str, query: str, retrieval_settings: dict | None = None
-    ) -> list[dict]:
+    async def retrieve_knowledge_base(self, kb_uuid: str, query: str) -> list[dict]:
         """检索知识库"""
         runtime_kb = await self.ap.rag_mgr.get_knowledge_base_by_uuid(kb_uuid)
         if runtime_kb is None:
             raise Exception('Knowledge base not found')
-
-        # Pass retrieval_settings
-        results = await runtime_kb.retrieve(query, settings=retrieval_settings)
-
-        return [result.model_dump() for result in results]
+        return [
+            result.model_dump() for result in await runtime_kb.retrieve(query, runtime_kb.knowledge_base_entity.top_k)
+        ]
 
     async def get_files_by_knowledge_base(self, kb_uuid: str) -> list[dict]:
         """获取知识库文件"""
@@ -123,9 +107,9 @@ class KnowledgeService:
         runtime_kb = await self.ap.rag_mgr.get_knowledge_base_by_uuid(kb_uuid)
         if runtime_kb is None:
             raise Exception('Knowledge base not found')
-
-        await self._check_doc_capability(kb_uuid, 'document deletion')
-
+        # Only internal KBs support file deletion
+        if runtime_kb.get_type() != 'internal':
+            raise Exception('Only internal knowledge bases support file deletion')
         await runtime_kb.delete_file(file_id)
 
         # Update the KB's updated_at timestamp
@@ -137,14 +121,13 @@ class KnowledgeService:
 
     async def delete_knowledge_base(self, kb_uuid: str) -> None:
         """删除知识库"""
-        # Delete from DB first to commit the deletion, then clean up runtime/plugin (best-effort)
+        await self.ap.rag_mgr.delete_knowledge_base(kb_uuid)
+
         await self.ap.persistence_mgr.execute_async(
             sqlalchemy.delete(persistence_rag.KnowledgeBase).where(persistence_rag.KnowledgeBase.uuid == kb_uuid)
         )
 
         # delete files
-        # NOTE: Chunk cleanup is for legacy (pre-plugin) KBs that stored chunks locally.
-        # For plugin-based Knowledge Engines, the Chunk table is not populated, so this is a no-op.
         files = await self.ap.persistence_mgr.execute_async(
             sqlalchemy.select(persistence_rag.File).where(persistence_rag.File.kb_id == kb_uuid)
         )
@@ -157,53 +140,3 @@ class KnowledgeService:
             await self.ap.persistence_mgr.execute_async(
                 sqlalchemy.delete(persistence_rag.File).where(persistence_rag.File.uuid == file.uuid)
             )
-
-        # Remove from runtime and notify plugin (best-effort, DB is already cleaned up)
-        await self.ap.rag_mgr.delete_knowledge_base(kb_uuid)
-
-    # ================= Knowledge Engine Discovery =================
-
-    async def list_knowledge_engines(self) -> list[dict]:
-        """List all available Knowledge Engines from plugins."""
-        engines = []
-
-        if not self.ap.plugin_connector.is_enable_plugin:
-            return engines
-
-        # Get KnowledgeEngine plugins
-        try:
-            knowledge_engines = await self.ap.plugin_connector.list_knowledge_engines()
-            engines.extend(knowledge_engines)
-        except Exception as e:
-            self.ap.logger.warning(f'Failed to list Knowledge Engines from plugins: {e}')
-
-        return engines
-
-    async def list_parsers(self, mime_type: str | None = None) -> list[dict]:
-        """List available parsers, optionally filtered by MIME type."""
-        if not self.ap.plugin_connector.is_enable_plugin:
-            return []
-        try:
-            parsers = await self.ap.plugin_connector.list_parsers()
-            if mime_type:
-                parsers = [p for p in parsers if mime_type in p.get('supported_mime_types', [])]
-            return parsers
-        except Exception as e:
-            self.ap.logger.warning(f'Failed to list parsers: {e}')
-            return []
-
-    async def get_engine_creation_schema(self, plugin_id: str) -> dict:
-        """Get creation settings schema for a specific Knowledge Engine."""
-        try:
-            return await self.ap.plugin_connector.get_rag_creation_schema(plugin_id)
-        except Exception as e:
-            self.ap.logger.warning(f'Failed to get creation schema for {plugin_id}: {e}')
-            return {}
-
-    async def get_engine_retrieval_schema(self, plugin_id: str) -> dict:
-        """Get retrieval settings schema for a specific Knowledge Engine."""
-        try:
-            return await self.ap.plugin_connector.get_rag_retrieval_schema(plugin_id)
-        except Exception as e:
-            self.ap.logger.warning(f'Failed to get retrieval schema for {plugin_id}: {e}')
-            return {}

src/langbot/pkg/api/http/service/monitoring.py

@@ -32,7 +32,6 @@ class MonitoringService:
         user_id: str | None = None,
         runner_name: str | None = None,
         variables: str | None = None,
-        role: str = 'user',
     ) -> str:
         """Record a message"""
         message_id = str(uuid.uuid4())
@@ -51,7 +50,6 @@ class MonitoringService:
             'user_id': user_id,
             'runner_name': runner_name,
             'variables': variables,
-            'role': role,
         }
 
         await self.ap.persistence_mgr.execute_async(
@@ -357,7 +355,6 @@ class MonitoringService:
         self,
         bot_ids: list[str] | None = None,
         pipeline_ids: list[str] | None = None,
-        session_ids: list[str] | None = None,
         start_time: datetime.datetime | None = None,
         end_time: datetime.datetime | None = None,
         limit: int = 100,
@@ -370,8 +367,6 @@ class MonitoringService:
             conditions.append(persistence_monitoring.MonitoringMessage.bot_id.in_(bot_ids))
         if pipeline_ids:
             conditions.append(persistence_monitoring.MonitoringMessage.pipeline_id.in_(pipeline_ids))
-        if session_ids:
-            conditions.append(persistence_monitoring.MonitoringMessage.session_id.in_(session_ids))
         if start_time:
             conditions.append(persistence_monitoring.MonitoringMessage.timestamp >= start_time)
         if end_time:

src/langbot/pkg/api/http/service/space.py

@@ -1,6 +1,6 @@
 from __future__ import annotations
 
-from langbot.pkg.utils import httpclient
+import aiohttp
 import typing
 import datetime
 import time
@@ -99,49 +99,49 @@ class SpaceService:
         space_config = self._get_space_config()
         space_url = space_config['url']
 
-        session = httpclient.get_session()
-        async with session.post(
-            f'{space_url}/api/v1/accounts/oauth/token',
-            json={'code': code, 'instance_id': constants.instance_id},
-        ) as response:
-            if response.status != 200:
-                raise ValueError(f'Failed to exchange OAuth code: {await response.text()}')
-            data = await response.json()
-            if data.get('code') != 0:
-                raise ValueError(f'Failed to exchange OAuth code: {data.get("msg")}')
-            return data.get('data', {})
+        async with aiohttp.ClientSession() as session:
+            async with session.post(
+                f'{space_url}/api/v1/accounts/oauth/token',
+                json={'code': code, 'instance_id': constants.instance_id},
+            ) as response:
+                if response.status != 200:
+                    raise ValueError(f'Failed to exchange OAuth code: {await response.text()}')
+                data = await response.json()
+                if data.get('code') != 0:
+                    raise ValueError(f'Failed to exchange OAuth code: {data.get("msg")}')
+                return data.get('data', {})
 
     async def refresh_token(self, refresh_token: str) -> typing.Dict:
         """Refresh Space access token"""
         space_config = self._get_space_config()
         space_url = space_config['url']
 
-        session = httpclient.get_session()
-        async with session.post(
-            f'{space_url}/api/v1/accounts/token/refresh', json={'refresh_token': refresh_token}
-        ) as response:
-            if response.status != 200:
-                raise ValueError(f'Failed to refresh token: {await response.text()}')
-            data = await response.json()
-            if data.get('code') != 0:
-                raise ValueError(f'Failed to refresh token: {data.get("msg")}')
-            return data.get('data', {})
+        async with aiohttp.ClientSession() as session:
+            async with session.post(
+                f'{space_url}/api/v1/accounts/token/refresh', json={'refresh_token': refresh_token}
+            ) as response:
+                if response.status != 200:
+                    raise ValueError(f'Failed to refresh token: {await response.text()}')
+                data = await response.json()
+                if data.get('code') != 0:
+                    raise ValueError(f'Failed to refresh token: {data.get("msg")}')
+                return data.get('data', {})
 
     async def get_user_info_raw(self, access_token: str) -> typing.Dict:
         """Get user info from Space using access token (no validation)"""
         space_config = self._get_space_config()
         space_url = space_config['url']
 
-        session = httpclient.get_session()
-        async with session.get(
-            f'{space_url}/api/v1/accounts/me', headers={'Authorization': f'Bearer {access_token}'}
-        ) as response:
-            if response.status != 200:
-                raise ValueError(f'Failed to get user info: {await response.text()}')
-            data = await response.json()
-            if data.get('code') != 0:
-                raise ValueError(f'Failed to get user info: {data.get("msg")}')
-            return data.get('data', {})
+        async with aiohttp.ClientSession() as session:
+            async with session.get(
+                f'{space_url}/api/v1/accounts/me', headers={'Authorization': f'Bearer {access_token}'}
+            ) as response:
+                if response.status != 200:
+                    raise ValueError(f'Failed to get user info: {await response.text()}')
+                data = await response.json()
+                if data.get('code') != 0:
+                    raise ValueError(f'Failed to get user info: {data.get("msg")}')
+                return data.get('data', {})
 
     # === API calls with token validation ===
 
@@ -178,12 +178,12 @@ class SpaceService:
         space_config = self._get_space_config()
         space_url = space_config['url']
 
-        session = httpclient.get_session()
-        async with session.get(f'{space_url}/api/v1/models') as response:
-            if response.status != 200:
-                raise ValueError(f'Failed to get models: {await response.text()}')
-            data = await response.json()
-            if data.get('code') != 0:
-                raise ValueError(f'Failed to get models: {data.get("msg")}')
-            models_data = data.get('data', {}).get('models', [])
-            return [SpaceModel.model_validate(model_dict) for model_dict in models_data]
+        async with aiohttp.ClientSession() as session:
+            async with session.get(f'{space_url}/api/v1/models') as response:
+                if response.status != 200:
+                    raise ValueError(f'Failed to get models: {await response.text()}')
+                data = await response.json()
+                if data.get('code') != 0:
+                    raise ValueError(f'Failed to get models: {data.get("msg")}')
+                models_data = data.get('data', {}).get('models', [])
+                return [SpaceModel.model_validate(model_dict) for model_dict in models_data]

src/langbot/pkg/core/app.py

@@ -15,7 +15,6 @@ from ..command import cmdmgr
 from ..plugin import connector as plugin_connector
 from ..pipeline import pool
 from ..pipeline import controller, pipelinemgr
-from ..pipeline import aggregator as message_aggregator
 from ..utils import version as version_mgr, proxy as proxy_mgr
 from ..persistence import mgr as persistencemgr
 from ..api.http.controller import main as http_controller
@@ -29,6 +28,7 @@ from ..api.http.service import knowledge as knowledge_service
 from ..api.http.service import mcp as mcp_service
 from ..api.http.service import apikey as apikey_service
 from ..api.http.service import webhook as webhook_service
+from ..api.http.service import external_kb as external_kb_service
 from ..api.http.service import monitoring as monitoring_service
 from ..discover import engine as discover_engine
 from ..storage import mgr as storagemgr
@@ -36,10 +36,8 @@ from ..utils import logcache
 from . import taskmgr
 from . import entities as core_entities
 from ..rag.knowledge import kbmgr as rag_mgr
-from ..rag.service import RAGRuntimeService
 from ..vector import mgr as vectordb_mgr
 from ..telemetry import telemetry as telemetry_module
-from ..survey import manager as survey_module
 
 
 class Application:
@@ -63,7 +61,6 @@ class Application:
     model_mgr: llm_model_mgr.ModelManager = None
 
     rag_mgr: rag_mgr.RAGManager = None
-    rag_runtime_service: RAGRuntimeService = None
 
     # TODO move to pipeline
     tool_mgr: llm_tool_mgr.ToolManager = None
@@ -99,8 +96,6 @@ class Application:
 
     query_pool: pool.QueryPool = None
 
-    msg_aggregator: message_aggregator.MessageAggregator = None
-
     ctrl: controller.Controller = None
 
     pipeline_mgr: pipelinemgr.PipelineManager = None
@@ -139,6 +134,8 @@ class Application:
 
     knowledge_service: knowledge_service.KnowledgeService = None
 
+    external_kb_service: external_kb_service.ExternalKBService = None
+
     mcp_service: mcp_service.MCPService = None
 
     apikey_service: apikey_service.ApiKeyService = None
@@ -147,8 +144,6 @@ class Application:
 
     telemetry: telemetry_module.TelemetryManager = None
 
-    survey: survey_module.SurveyManager = None
-
     monitoring_service: monitoring_service.MonitoringService = None
 
     def __init__(self):

src/langbot/pkg/core/bootutils/deps.py

@@ -1,4 +1,3 @@
-import importlib.util
 import pip
 import os
 from ...utils import pkgmgr
@@ -50,10 +49,9 @@ async def check_deps() -> list[str]:
 
     missing_deps = []
     for dep in required_deps:
-        # Use find_spec instead of __import__ to avoid actually loading
-        # all modules into memory. find_spec only checks if the module
-        # can be found, without executing module-level code.
-        if importlib.util.find_spec(dep) is None:
+        try:
+            __import__(dep)
+        except ImportError:
             missing_deps.append(dep)
     return missing_deps
 

src/langbot/pkg/core/stages/build_app.py

@@ -5,14 +5,12 @@ import asyncio
 from .. import stage, app
 from ...utils import version, proxy
 from ...pipeline import pool, controller, pipelinemgr
-from ...pipeline import aggregator as message_aggregator
 from ...plugin import connector as plugin_connector
 from ...command import cmdmgr
 from ...provider.session import sessionmgr as llm_session_mgr
 from ...provider.modelmgr import modelmgr as llm_model_mgr
 from ...provider.tools import toolmgr as llm_tool_mgr
 from ...rag.knowledge import kbmgr as rag_mgr
-from ...rag.service import RAGRuntimeService
 from ...platform import botmgr as im_mgr
 from ...platform.webhook_pusher import WebhookPusher
 from ...persistence import mgr as persistencemgr
@@ -27,6 +25,7 @@ from ...api.http.service import knowledge as knowledge_service
 from ...api.http.service import mcp as mcp_service
 from ...api.http.service import apikey as apikey_service
 from ...api.http.service import webhook as webhook_service
+from ...api.http.service import external_kb as external_kb_service
 from ...api.http.service import monitoring as monitoring_service
 from ...discover import engine as discover_engine
 from ...storage import mgr as storagemgr
@@ -34,7 +33,6 @@ from ...utils import logcache
 from ...vector import mgr as vectordb_mgr
 from .. import taskmgr
 from ...telemetry import telemetry as telemetry_module
-from ...survey import manager as survey_module
 
 
 @stage.stage_class('BuildAppStage')
@@ -73,6 +71,9 @@ class BuildAppStage(stage.BootingStage):
         knowledge_service_inst = knowledge_service.KnowledgeService(ap)
         ap.knowledge_service = knowledge_service_inst
 
+        external_kb_service_inst = external_kb_service.ExternalKBService(ap)
+        ap.external_kb_service = external_kb_service_inst
+
         mcp_service_inst = mcp_service.MCPService(ap)
         ap.mcp_service = mcp_service_inst
 
@@ -108,11 +109,6 @@ class BuildAppStage(stage.BootingStage):
         await telemetry_inst.initialize()
         ap.telemetry = telemetry_inst
 
-        # Survey manager
-        survey_inst = survey_module.SurveyManager(ap)
-        await survey_inst.initialize()
-        ap.survey = survey_inst
-
         cmd_mgr_inst = cmdmgr.CommandManager(ap)
         await cmd_mgr_inst.initialize()
         ap.cmd_mgr = cmd_mgr_inst
@@ -141,17 +137,10 @@ class BuildAppStage(stage.BootingStage):
         await pipeline_mgr.initialize()
         ap.pipeline_mgr = pipeline_mgr
 
-        # Initialize message aggregator (after pipeline_mgr, as it needs pipeline config)
-        msg_aggregator_inst = message_aggregator.MessageAggregator(ap)
-        ap.msg_aggregator = msg_aggregator_inst
-
         rag_mgr_inst = rag_mgr.RAGManager(ap)
         await rag_mgr_inst.initialize()
         ap.rag_mgr = rag_mgr_inst
 
-        # Initialize RAG Runtime Service for plugins
-        ap.rag_runtime_service = RAGRuntimeService(ap)
-
         # 初始化向量数据库管理器
         vectordb_mgr_inst = vectordb_mgr.VectorDBManager(ap)
         await vectordb_mgr_inst.initialize()

src/langbot/pkg/entity/persistence/monitoring.py

@@ -22,7 +22,6 @@ class MonitoringMessage(Base):
     user_id = sqlalchemy.Column(sqlalchemy.String(255), nullable=True)
     runner_name = sqlalchemy.Column(sqlalchemy.String(255), nullable=True)  # Runner name for this query
     variables = sqlalchemy.Column(sqlalchemy.Text, nullable=True)  # Query variables as JSON string
-    role = sqlalchemy.Column(sqlalchemy.String(50), nullable=True, default='user')  # user, assistant
 
 
 class MonitoringLLMCall(Base):

src/langbot/pkg/entity/persistence/rag.py

@@ -10,21 +10,8 @@ class KnowledgeBase(Base):
     emoji = sqlalchemy.Column(sqlalchemy.String(10), nullable=True, default='📚')
     created_at = sqlalchemy.Column(sqlalchemy.DateTime, default=sqlalchemy.func.now())
     updated_at = sqlalchemy.Column(sqlalchemy.DateTime, default=sqlalchemy.func.now(), onupdate=sqlalchemy.func.now())
-    # New fields for plugin-based RAG
-    knowledge_engine_plugin_id = sqlalchemy.Column(sqlalchemy.String, nullable=True)
-    collection_id = sqlalchemy.Column(sqlalchemy.String, nullable=True)
-    creation_settings = sqlalchemy.Column(sqlalchemy.JSON, nullable=True, default=None)
-    retrieval_settings = sqlalchemy.Column(sqlalchemy.JSON, nullable=True, default=None)
-
-    # Field sets for different operations
-    MUTABLE_FIELDS = {'name', 'description', 'retrieval_settings'}
-    """Fields that can be updated after creation."""
-
-    CREATE_FIELDS = MUTABLE_FIELDS | {'uuid', 'knowledge_engine_plugin_id', 'collection_id', 'creation_settings'}
-    """Fields used when creating a new knowledge base."""
-
-    ALL_DB_FIELDS = CREATE_FIELDS | {'emoji', 'created_at', 'updated_at'}
-    """All fields stored in database (for loading from DB row)."""
+    embedding_model_uuid = sqlalchemy.Column(sqlalchemy.String, default='')
+    top_k = sqlalchemy.Column(sqlalchemy.Integer, default=5)
 
 
 class File(Base):
@@ -42,3 +29,16 @@ class Chunk(Base):
     uuid = sqlalchemy.Column(sqlalchemy.String(255), primary_key=True, unique=True)
     file_id = sqlalchemy.Column(sqlalchemy.String(255), nullable=True)
     text = sqlalchemy.Column(sqlalchemy.Text)
+
+
+class ExternalKnowledgeBase(Base):
+    __tablename__ = 'external_knowledge_bases'
+    uuid = sqlalchemy.Column(sqlalchemy.String(255), primary_key=True, unique=True)
+    name = sqlalchemy.Column(sqlalchemy.String, index=True)
+    description = sqlalchemy.Column(sqlalchemy.Text)
+    emoji = sqlalchemy.Column(sqlalchemy.String(10), nullable=True, default='🔗')
+    plugin_author = sqlalchemy.Column(sqlalchemy.String, nullable=False)
+    plugin_name = sqlalchemy.Column(sqlalchemy.String, nullable=False)
+    retriever_name = sqlalchemy.Column(sqlalchemy.String, nullable=False)
+    retriever_config = sqlalchemy.Column(sqlalchemy.JSON, nullable=False, default={})
+    created_at = sqlalchemy.Column(sqlalchemy.DateTime, default=sqlalchemy.func.now())

src/langbot/pkg/persistence/migrations/dbm019_monitoring_message_role.py

@@ -1,24 +0,0 @@
-import sqlalchemy
-from .. import migration
-
-
-@migration.migration_class(19)
-class DBMigrateMonitoringMessageRole(migration.DBMigration):
-    """Add role column to monitoring_messages table"""
-
-    async def upgrade(self):
-        """Upgrade"""
-        try:
-            sql_text = sqlalchemy.text("ALTER TABLE monitoring_messages ADD COLUMN role VARCHAR(50) DEFAULT 'user'")
-            await self.ap.persistence_mgr.execute_async(sql_text)
-        except Exception:
-            # Column may already exist
-            pass
-
-    async def downgrade(self):
-        """Downgrade"""
-        try:
-            sql_text = sqlalchemy.text('ALTER TABLE monitoring_messages DROP COLUMN role')
-            await self.ap.persistence_mgr.execute_async(sql_text)
-        except Exception:
-            pass

src/langbot/pkg/persistence/migrations/dbm020_knowledge_engine_plugin_architecture.py

@@ -1,161 +0,0 @@
-import sqlalchemy
-from .. import migration
-
-
-@migration.migration_class(20)
-class DBMigrateKnowledgeEnginePluginArchitecture(migration.DBMigration):
-    """Migrate to unified Knowledge Engine plugin architecture.
-
-    Changes:
-    - Backup existing knowledge_bases data to knowledge_bases_backup
-    - Clear knowledge_bases table and add new plugin architecture columns
-    - Drop old columns (PostgreSQL only; SQLite leaves them unmapped)
-    - Preserve external_knowledge_bases table as-is for future migration
-    - Set rag_plugin_migration_needed flag in metadata if old data exists
-    """
-
-    async def upgrade(self):
-        """Upgrade"""
-        has_internal_data = await self._backup_knowledge_bases()
-        has_external_data = await self._check_external_knowledge_bases()
-        await self._clear_knowledge_bases()
-        await self._add_columns_to_knowledge_bases()
-        await self._drop_old_columns()
-        if has_internal_data or has_external_data:
-            await self._set_migration_flag()
-
-    async def _get_table_columns(self, table_name: str) -> list[str]:
-        """Get column names from a table (works for both SQLite and PostgreSQL)."""
-        if self.ap.persistence_mgr.db.name == 'postgresql':
-            result = await self.ap.persistence_mgr.execute_async(
-                sqlalchemy.text(
-                    'SELECT column_name FROM information_schema.columns WHERE table_name = :table_name;'
-                ).bindparams(table_name=table_name)
-            )
-            return [row[0] for row in result.fetchall()]
-        else:
-            # SQLite PRAGMA does not support bind parameters; validate identifier.
-            if not table_name.isidentifier():
-                raise ValueError(f'Invalid table name: {table_name}')
-            result = await self.ap.persistence_mgr.execute_async(sqlalchemy.text(f'PRAGMA table_info({table_name});'))
-            return [row[1] for row in result.fetchall()]
-
-    async def _table_exists(self, table_name: str) -> bool:
-        """Check if a table exists."""
-        if self.ap.persistence_mgr.db.name == 'postgresql':
-            result = await self.ap.persistence_mgr.execute_async(
-                sqlalchemy.text(
-                    'SELECT EXISTS (SELECT FROM information_schema.tables WHERE table_name = :table_name);'
-                ).bindparams(table_name=table_name)
-            )
-            return result.scalar()
-        else:
-            result = await self.ap.persistence_mgr.execute_async(
-                sqlalchemy.text("SELECT name FROM sqlite_master WHERE type='table' AND name=:table_name;").bindparams(
-                    table_name=table_name
-                )
-            )
-            return result.first() is not None
-
-    async def _backup_knowledge_bases(self) -> bool:
-        """Backup knowledge_bases data. Returns True if data was backed up."""
-        result = await self.ap.persistence_mgr.execute_async(sqlalchemy.text('SELECT COUNT(*) FROM knowledge_bases;'))
-        count = result.scalar()
-        if count == 0:
-            return False
-
-        # Drop backup table if it already exists (from a previous failed migration)
-        if await self._table_exists('knowledge_bases_backup'):
-            await self.ap.persistence_mgr.execute_async(sqlalchemy.text('DROP TABLE knowledge_bases_backup;'))
-
-        await self.ap.persistence_mgr.execute_async(
-            sqlalchemy.text('CREATE TABLE knowledge_bases_backup AS SELECT * FROM knowledge_bases;')
-        )
-        self.ap.logger.info(
-            'Backed up %d knowledge base(s) to knowledge_bases_backup table.',
-            count,
-        )
-        return True
-
-    async def _check_external_knowledge_bases(self) -> bool:
-        """Check if external_knowledge_bases table exists and has data.
-
-        The table is preserved as-is (not dropped) for future migration.
-        """
-        if not await self._table_exists('external_knowledge_bases'):
-            return False
-
-        result = await self.ap.persistence_mgr.execute_async(
-            sqlalchemy.text('SELECT COUNT(*) FROM external_knowledge_bases;')
-        )
-        count = result.scalar()
-        if count > 0:
-            self.ap.logger.info(
-                'Found %d external knowledge base(s) in external_knowledge_bases table. '
-                'Table preserved for future migration.',
-                count,
-            )
-        return count > 0
-
-    async def _clear_knowledge_bases(self):
-        """Clear all rows from knowledge_bases table (preserve table structure)."""
-        await self.ap.persistence_mgr.execute_async(sqlalchemy.text('DELETE FROM knowledge_bases;'))
-
-    async def _add_columns_to_knowledge_bases(self):
-        """Add new RAG plugin architecture columns to knowledge_bases table."""
-        columns = await self._get_table_columns('knowledge_bases')
-
-        new_columns = {
-            'knowledge_engine_plugin_id': 'VARCHAR',
-            'collection_id': 'VARCHAR',
-            'creation_settings': 'TEXT',  # JSON stored as TEXT for SQLite compatibility
-            'retrieval_settings': 'TEXT',
-        }
-
-        for col_name, col_type in new_columns.items():
-            if col_name not in columns:
-                await self.ap.persistence_mgr.execute_async(
-                    sqlalchemy.text(f'ALTER TABLE knowledge_bases ADD COLUMN {col_name} {col_type};')
-                )
-
-    async def _drop_old_columns(self):
-        """Drop embedding_model_uuid and top_k columns (PostgreSQL only).
-
-        SQLite does not support DROP COLUMN in older versions, so we leave the
-        columns in place — the SQLAlchemy entity simply won't map them.
-        """
-        if self.ap.persistence_mgr.db.name != 'postgresql':
-            return
-
-        columns = await self._get_table_columns('knowledge_bases')
-
-        if 'embedding_model_uuid' in columns:
-            await self.ap.persistence_mgr.execute_async(
-                sqlalchemy.text('ALTER TABLE knowledge_bases DROP COLUMN embedding_model_uuid;')
-            )
-
-        if 'top_k' in columns:
-            await self.ap.persistence_mgr.execute_async(
-                sqlalchemy.text('ALTER TABLE knowledge_bases DROP COLUMN top_k;')
-            )
-
-    async def _set_migration_flag(self):
-        """Set rag_plugin_migration_needed flag in metadata table."""
-        # Check if the key already exists
-        result = await self.ap.persistence_mgr.execute_async(
-            sqlalchemy.text("SELECT value FROM metadata WHERE key = 'rag_plugin_migration_needed';")
-        )
-        row = result.first()
-        if row is not None:
-            await self.ap.persistence_mgr.execute_async(
-                sqlalchemy.text("UPDATE metadata SET value = 'true' WHERE key = 'rag_plugin_migration_needed';")
-            )
-        else:
-            await self.ap.persistence_mgr.execute_async(
-                sqlalchemy.text("INSERT INTO metadata (key, value) VALUES ('rag_plugin_migration_needed', 'true');")
-            )
-        self.ap.logger.info('Set rag_plugin_migration_needed=true in metadata.')
-
-    async def downgrade(self):
-        """Downgrade"""
-        pass

src/langbot/pkg/pipeline/aggregator.py

@@ -1,289 +0,0 @@
-"""Message Aggregator Module
-
-This module provides message aggregation/debounce functionality.
-When users send multiple messages consecutively, the aggregator will wait
-for a configurable delay period and merge them into a single message
-before processing.
-"""
-
-from __future__ import annotations
-
-import asyncio
-import time
-import typing
-from dataclasses import dataclass, field
-
-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.provider.session as provider_session
-import langbot_plugin.api.definition.abstract.platform.adapter as abstract_platform_adapter
-
-if typing.TYPE_CHECKING:
-    from ..core import app
-
-# Maximum number of messages to buffer before forcing a flush
-MAX_BUFFER_MESSAGES = 10
-
-
-@dataclass
-class PendingMessage:
-    """A pending message waiting to be aggregated"""
-
-    bot_uuid: str
-    launcher_type: provider_session.LauncherTypes
-    launcher_id: typing.Union[int, str]
-    sender_id: typing.Union[int, str]
-    message_event: platform_events.MessageEvent
-    message_chain: platform_message.MessageChain
-    adapter: abstract_platform_adapter.AbstractMessagePlatformAdapter
-    pipeline_uuid: typing.Optional[str]
-    timestamp: float = field(default_factory=time.time)
-
-
-@dataclass
-class SessionBuffer:
-    """Buffer for a single session's pending messages"""
-
-    session_id: str
-    messages: list[PendingMessage] = field(default_factory=list)
-    timer_task: typing.Optional[asyncio.Task] = None
-    last_message_time: float = field(default_factory=time.time)
-
-
-class MessageAggregator:
-    """Message aggregator that buffers and merges consecutive messages
-
-    This class implements a debounce mechanism for incoming messages.
-    When a message arrives, it starts a timer. If more messages arrive
-    before the timer expires, they are buffered. When the timer expires,
-    all buffered messages are merged and sent to the query pool.
-    """
-
-    ap: app.Application
-
-    buffers: dict[str, SessionBuffer]
-    """Session ID -> SessionBuffer mapping"""
-
-    lock: asyncio.Lock
-    """Lock for thread-safe buffer operations"""
-
-    def __init__(self, ap: app.Application):
-        self.ap = ap
-        self.buffers = {}
-        self.lock = asyncio.Lock()
-
-    def _get_session_id(
-        self,
-        bot_uuid: str,
-        launcher_type: provider_session.LauncherTypes,
-        launcher_id: typing.Union[int, str],
-    ) -> str:
-        """Generate a unique session ID"""
-        return f'{bot_uuid}:{launcher_type.value}:{launcher_id}'
-
-    async def _get_aggregation_config(self, pipeline_uuid: typing.Optional[str]) -> tuple[bool, float]:
-        """Get aggregation configuration for a pipeline
-
-        Returns:
-            tuple: (enabled, delay_seconds)
-        """
-        default_enabled = False
-        default_delay = 1.5
-
-        if pipeline_uuid is None:
-            return default_enabled, default_delay
-
-        # Get pipeline from pipeline manager
-        pipeline = await self.ap.pipeline_mgr.get_pipeline_by_uuid(pipeline_uuid)
-        if pipeline is None:
-            return default_enabled, default_delay
-
-        config = pipeline.pipeline_entity.config or {}
-        trigger_config = config.get('trigger', {})
-        aggregation_config = trigger_config.get('message-aggregation', {})
-
-        enabled = aggregation_config.get('enabled', default_enabled)
-
-        delay_raw = aggregation_config.get('delay', default_delay)
-        try:
-            delay = float(delay_raw)
-        except (TypeError, ValueError):
-            delay = default_delay
-
-        # Clamp delay to valid range
-        delay = max(1.0, min(10.0, delay))
-
-        return enabled, delay
-
-    async def add_message(
-        self,
-        bot_uuid: str,
-        launcher_type: provider_session.LauncherTypes,
-        launcher_id: typing.Union[int, str],
-        sender_id: typing.Union[int, str],
-        message_event: platform_events.MessageEvent,
-        message_chain: platform_message.MessageChain,
-        adapter: abstract_platform_adapter.AbstractMessagePlatformAdapter,
-        pipeline_uuid: typing.Optional[str] = None,
-    ) -> None:
-        """Add a message to the aggregation buffer
-
-        If aggregation is disabled for the pipeline, the message is sent
-        directly to the query pool. Otherwise, it's buffered and will be
-        merged with other messages from the same session.
-        """
-        enabled, delay = await self._get_aggregation_config(pipeline_uuid)
-
-        if not enabled:
-            # Aggregation disabled, send directly to query pool
-            await self.ap.query_pool.add_query(
-                bot_uuid=bot_uuid,
-                launcher_type=launcher_type,
-                launcher_id=launcher_id,
-                sender_id=sender_id,
-                message_event=message_event,
-                message_chain=message_chain,
-                adapter=adapter,
-                pipeline_uuid=pipeline_uuid,
-            )
-            return
-
-        session_id = self._get_session_id(bot_uuid, launcher_type, launcher_id)
-
-        pending_msg = PendingMessage(
-            bot_uuid=bot_uuid,
-            launcher_type=launcher_type,
-            launcher_id=launcher_id,
-            sender_id=sender_id,
-            message_event=message_event,
-            message_chain=message_chain,
-            adapter=adapter,
-            pipeline_uuid=pipeline_uuid,
-        )
-
-        force_flush = False
-        async with self.lock:
-            if session_id in self.buffers:
-                buffer = self.buffers[session_id]
-                # Cancel existing timer (just cancel, don't await inside lock)
-                if buffer.timer_task and not buffer.timer_task.done():
-                    buffer.timer_task.cancel()
-                buffer.messages.append(pending_msg)
-            else:
-                buffer = SessionBuffer(
-                    session_id=session_id,
-                    messages=[pending_msg],
-                )
-                self.buffers[session_id] = buffer
-
-            buffer.last_message_time = time.time()
-
-            # Check if buffer reached max capacity
-            if len(buffer.messages) >= MAX_BUFFER_MESSAGES:
-                force_flush = True
-            else:
-                # Start new timer
-                buffer.timer_task = asyncio.create_task(self._delayed_flush(session_id, delay))
-
-        if force_flush:
-            await self._flush_buffer(session_id)
-
-    async def _delayed_flush(self, session_id: str, delay: float) -> None:
-        """Wait for delay then flush the buffer"""
-        try:
-            await asyncio.sleep(delay)
-            await self._flush_buffer(session_id)
-        except asyncio.CancelledError:
-            # Timer was cancelled, new message arrived
-            pass
-
-    async def _flush_buffer(self, session_id: str) -> None:
-        """Flush the buffer for a session, merging all messages"""
-        async with self.lock:
-            buffer = self.buffers.pop(session_id, None)
-
-        if buffer is None or not buffer.messages:
-            return
-
-        if len(buffer.messages) == 1:
-            # Only one message, no need to merge
-            msg = buffer.messages[0]
-            await self.ap.query_pool.add_query(
-                bot_uuid=msg.bot_uuid,
-                launcher_type=msg.launcher_type,
-                launcher_id=msg.launcher_id,
-                sender_id=msg.sender_id,
-                message_event=msg.message_event,
-                message_chain=msg.message_chain,
-                adapter=msg.adapter,
-                pipeline_uuid=msg.pipeline_uuid,
-            )
-            return
-
-        # Merge multiple messages
-        merged_msg = self._merge_messages(buffer.messages)
-        await self.ap.query_pool.add_query(
-            bot_uuid=merged_msg.bot_uuid,
-            launcher_type=merged_msg.launcher_type,
-            launcher_id=merged_msg.launcher_id,
-            sender_id=merged_msg.sender_id,
-            message_event=merged_msg.message_event,
-            message_chain=merged_msg.message_chain,
-            adapter=merged_msg.adapter,
-            pipeline_uuid=merged_msg.pipeline_uuid,
-        )
-
-    def _merge_messages(self, messages: list[PendingMessage]) -> PendingMessage:
-        """Merge multiple messages into one
-
-        The merged message uses the first message as base and combines
-        all message chains with newline separators.
-        The original message_event is kept unmodified to preserve
-        message metadata (message_id, etc.) for reply/quote.
-        """
-        if len(messages) == 1:
-            return messages[0]
-
-        base_msg = messages[0]
-
-        # Build merged message chain
-        merged_chain = platform_message.MessageChain([])
-
-        for i, msg in enumerate(messages):
-            if i > 0:
-                # Add newline separator between messages
-                merged_chain.append(platform_message.Plain(text='\n'))
-
-            # Copy all components from this message
-            for component in msg.message_chain:
-                merged_chain.append(component)
-
-        # Keep message_event unmodified (preserves original message_id and
-        # metadata for reply/quote), only pass merged chain separately
-        return PendingMessage(
-            bot_uuid=base_msg.bot_uuid,
-            launcher_type=base_msg.launcher_type,
-            launcher_id=base_msg.launcher_id,
-            sender_id=base_msg.sender_id,
-            message_event=base_msg.message_event,
-            message_chain=merged_chain,
-            adapter=base_msg.adapter,
-            pipeline_uuid=base_msg.pipeline_uuid,
-        )
-
-    async def flush_all(self) -> None:
-        """Flush all pending buffers immediately
-
-        This is useful during shutdown to ensure no messages are lost.
-        """
-        # Snapshot session IDs and cancel all timers under lock
-        async with self.lock:
-            session_ids = list(self.buffers.keys())
-            for sid in session_ids:
-                buffer = self.buffers.get(sid)
-                if buffer and buffer.timer_task and not buffer.timer_task.done():
-                    buffer.timer_task.cancel()
-
-        # Flush each buffer outside the lock
-        for session_id in session_ids:
-            await self._flush_buffer(session_id)

src/langbot/pkg/pipeline/cntfilter/filters/baiduexamine.py

@@ -1,9 +1,10 @@
 from __future__ import annotations
 
+import aiohttp
+
 from .. import entities
 from .. import filter as filter_model
 import langbot_plugin.api.entities.builtin.pipeline.query as pipeline_query
-from langbot.pkg.utils import httpclient
 
 BAIDU_EXAMINE_URL = 'https://aip.baidubce.com/rest/2.0/solution/v1/text_censor/v2/user_defined?access_token={}'
 BAIDU_EXAMINE_TOKEN_URL = 'https://aip.baidubce.com/oauth/2.0/token'
@@ -14,50 +15,50 @@ class BaiduCloudExamine(filter_model.ContentFilter):
     """百度云内容审核"""
 
     async def _get_token(self) -> str:
-        session = httpclient.get_session()
-        async with session.post(
-            BAIDU_EXAMINE_TOKEN_URL,
-            params={
-                'grant_type': 'client_credentials',
-                'client_id': self.ap.pipeline_cfg.data['baidu-cloud-examine']['api-key'],
-                'client_secret': self.ap.pipeline_cfg.data['baidu-cloud-examine']['api-secret'],
-            },
-        ) as resp:
-            return (await resp.json())['access_token']
+        async with aiohttp.ClientSession() as session:
+            async with session.post(
+                BAIDU_EXAMINE_TOKEN_URL,
+                params={
+                    'grant_type': 'client_credentials',
+                    'client_id': self.ap.pipeline_cfg.data['baidu-cloud-examine']['api-key'],
+                    'client_secret': self.ap.pipeline_cfg.data['baidu-cloud-examine']['api-secret'],
+                },
+            ) as resp:
+                return (await resp.json())['access_token']
 
     async def process(self, query: pipeline_query.Query, message: str) -> entities.FilterResult:
-        session = httpclient.get_session()
-        async with session.post(
-            BAIDU_EXAMINE_URL.format(await self._get_token()),
-            headers={
-                'Content-Type': 'application/x-www-form-urlencoded',
-                'Accept': 'application/json',
-            },
-            data=f'text={message}'.encode('utf-8'),
-        ) as resp:
-            result = await resp.json()
+        async with aiohttp.ClientSession() as session:
+            async with session.post(
+                BAIDU_EXAMINE_URL.format(await self._get_token()),
+                headers={
+                    'Content-Type': 'application/x-www-form-urlencoded',
+                    'Accept': 'application/json',
+                },
+                data=f'text={message}'.encode('utf-8'),
+            ) as resp:
+                result = await resp.json()
 
-            if 'error_code' in result:
-                return entities.FilterResult(
-                    level=entities.ResultLevel.BLOCK,
-                    replacement=message,
-                    user_notice='',
-                    console_notice=f'百度云判定出错，错误信息：{result["error_msg"]}',
-                )
-            else:
-                conclusion = result['conclusion']
-
-                if conclusion in ('合规'):
-                    return entities.FilterResult(
-                        level=entities.ResultLevel.PASS,
-                        replacement=message,
-                        user_notice='',
-                        console_notice=f'百度云判定结果：{conclusion}',
-                    )
-                else:
+                if 'error_code' in result:
                     return entities.FilterResult(
                         level=entities.ResultLevel.BLOCK,
                         replacement=message,
-                        user_notice='消息中存在不合适的内容, 请修改',
-                        console_notice=f'百度云判定结果：{conclusion}',
+                        user_notice='',
+                        console_notice=f'百度云判定出错，错误信息：{result["error_msg"]}',
                     )
+                else:
+                    conclusion = result['conclusion']
+
+                    if conclusion in ('合规'):
+                        return entities.FilterResult(
+                            level=entities.ResultLevel.PASS,
+                            replacement=message,
+                            user_notice='',
+                            console_notice=f'百度云判定结果：{conclusion}',
+                        )
+                    else:
+                        return entities.FilterResult(
+                            level=entities.ResultLevel.BLOCK,
+                            replacement=message,
+                            user_notice='消息中存在不合适的内容, 请修改',
+                            console_notice=f'百度云判定结果：{conclusion}',
+                        )

src/langbot/pkg/pipeline/config_coercion.py

@@ -1,105 +0,0 @@
-from __future__ import annotations
-
-import logging
-
-logger = logging.getLogger(__name__)
-
-# metadata type -> coercion function
-_COERCE_MAP = {
-    'integer': lambda v: int(v),
-    'number': lambda v: float(v),
-    'float': lambda v: float(v),
-}
-
-
-def _coerce_bool(v):
-    if isinstance(v, bool):
-        return v
-    if isinstance(v, str):
-        if v.lower() == 'true':
-            return True
-        if v.lower() == 'false':
-            return False
-        raise ValueError(f'Cannot convert string {v!r} to bool')
-    return bool(v)
-
-
-def _coerce_value(value, expected_type: str):
-    """Convert a single value to the expected type.
-
-    Returns the converted value, or the original value if no conversion needed.
-    """
-    if value is None:
-        return value
-
-    if expected_type == 'boolean':
-        if isinstance(value, bool):
-            return value
-        return _coerce_bool(value)
-
-    coerce_fn = _COERCE_MAP.get(expected_type)
-    if coerce_fn is None:
-        return value
-
-    # Already the correct type
-    if expected_type == 'integer' and isinstance(value, int) and not isinstance(value, bool):
-        return value
-    if expected_type in ('number', 'float') and isinstance(value, (int, float)) and not isinstance(value, bool):
-        return float(value)
-
-    return coerce_fn(value)
-
-
-def coerce_pipeline_config(
-    config: dict,
-    *metadata_list: dict,
-) -> None:
-    """Coerce pipeline config values according to metadata type definitions.
-
-    Walks each metadata dict (trigger, safety, ai, output) and converts
-    config values in-place so that strings coming from the JSON column are
-    cast to their declared types (integer, number/float, boolean).
-
-    Args:
-        config: The pipeline config dict to modify in-place.
-        *metadata_list: Metadata dicts loaded from the YAML templates.
-    """
-    for meta in metadata_list:
-        section_name = meta.get('name')
-        if not section_name or section_name not in config:
-            continue
-
-        section = config[section_name]
-        if not isinstance(section, dict):
-            continue
-
-        for stage_def in meta.get('stages', []):
-            stage_name = stage_def.get('name')
-            if not stage_name or stage_name not in section:
-                continue
-
-            stage_config = section[stage_name]
-            if not isinstance(stage_config, dict):
-                continue
-
-            for field_def in stage_def.get('config', []):
-                field_name = field_def.get('name')
-                field_type = field_def.get('type')
-                if not field_name or not field_type or field_name not in stage_config:
-                    continue
-
-                old_value = stage_config[field_name]
-                try:
-                    new_value = _coerce_value(old_value, field_type)
-                    if new_value is not old_value:
-                        stage_config[field_name] = new_value
-                except (ValueError, TypeError) as e:
-                    logger.warning(
-                        'Failed to coerce config %s.%s.%s (%r) to %s: %s',
-                        section_name,
-                        stage_name,
-                        field_name,
-                        old_value,
-                        field_type,
-                        e,
-                    )

src/langbot/pkg/pipeline/monitoring_helper.py

@@ -114,60 +114,6 @@ class MonitoringHelper:
         except Exception as e:
             ap.logger.error(f'Failed to record query success: {e}')
 
-    @staticmethod
-    async def record_query_response(
-        ap: app.Application,
-        query: pipeline_query.Query,
-        bot_id: str,
-        bot_name: str,
-        pipeline_id: str,
-        pipeline_name: str,
-        runner_name: str | None = None,
-    ):
-        """Record bot response message to monitoring"""
-        try:
-            session_id = f'{query.launcher_type}_{query.launcher_id}'
-
-            # Extract response content from resp_message_chain
-            if hasattr(query, 'resp_message_chain') and query.resp_message_chain:
-                # Serialize the last response message chain
-                last_resp = query.resp_message_chain[-1]
-                if hasattr(last_resp, 'model_dump'):
-                    message_content = json.dumps(last_resp.model_dump(), ensure_ascii=False)
-                else:
-                    message_content = str(last_resp)
-            elif hasattr(query, 'resp_messages') and query.resp_messages:
-                last_resp = query.resp_messages[-1]
-                if hasattr(last_resp, 'get_content_platform_message_chain'):
-                    chain = last_resp.get_content_platform_message_chain()
-                    if hasattr(chain, 'model_dump'):
-                        message_content = json.dumps(chain.model_dump(), ensure_ascii=False)
-                    else:
-                        message_content = str(chain)
-                else:
-                    message_content = str(last_resp)
-            else:
-                return  # No response to record
-
-            await ap.monitoring_service.record_message(
-                bot_id=bot_id,
-                bot_name=bot_name,
-                pipeline_id=pipeline_id,
-                pipeline_name=pipeline_name,
-                message_content=message_content,
-                session_id=session_id,
-                status='success',
-                level='info',
-                platform=query.launcher_type.value
-                if hasattr(query.launcher_type, 'value')
-                else str(query.launcher_type),
-                user_id=query.sender_id,
-                runner_name=runner_name,
-                role='assistant',
-            )
-        except Exception as e:
-            ap.logger.error(f'Failed to record query response: {e}')
-
     @staticmethod
     async def record_query_error(
         ap: app.Application,

src/langbot/pkg/pipeline/pipelinemgr.py

@@ -13,7 +13,6 @@ 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.events as events
 from ..utils import importutil
-from .config_coercion import coerce_pipeline_config
 
 import langbot_plugin.api.entities.builtin.provider.session as provider_session
 import langbot_plugin.api.entities.builtin.pipeline.query as pipeline_query
@@ -340,20 +339,6 @@ class RuntimePipeline:
                 except Exception as e:
                     self.ap.logger.error(f'Failed to record query success: {e}')
 
-                # Record bot response message
-                try:
-                    await monitoring_helper.MonitoringHelper.record_query_response(
-                        ap=self.ap,
-                        query=query,
-                        bot_id=query.bot_uuid or 'unknown',
-                        bot_name=bot_name,
-                        pipeline_id=self.pipeline_entity.uuid,
-                        pipeline_name=pipeline_name,
-                        runner_name=runner_name,
-                    )
-                except Exception as e:
-                    self.ap.logger.error(f'Failed to record query response: {e}')
-
         except Exception as e:
             inst_name = query.current_stage_name if query.current_stage_name else 'unknown'
             self.ap.logger.error(f'Error processing query {query.query_id} stage={inst_name} : {e}')
@@ -384,6 +369,8 @@ class RuntimePipeline:
 class PipelineManager:
     """流水线管理器"""
 
+    # ====== 4.0 ======
+
     ap: app.Application
 
     pipelines: list[RuntimePipeline]
@@ -421,14 +408,6 @@ class PipelineManager:
         elif isinstance(pipeline_entity, dict):
             pipeline_entity = persistence_pipeline.LegacyPipeline(**pipeline_entity)
 
-        coerce_pipeline_config(
-            pipeline_entity.config,
-            getattr(self.ap, 'pipeline_config_meta_trigger', {'name': 'trigger', 'stages': []}),
-            getattr(self.ap, 'pipeline_config_meta_safety', {'name': 'safety', 'stages': []}),
-            getattr(self.ap, 'pipeline_config_meta_ai', {'name': 'ai', 'stages': []}),
-            getattr(self.ap, 'pipeline_config_meta_output', {'name': 'output', 'stages': []}),
-        )
-
         # initialize stage containers according to pipeline_entity.stages
         stage_containers: list[StageInstContainer] = []
         for stage_name in pipeline_entity.stages:

src/langbot/pkg/pipeline/process/handlers/chat.py

@@ -12,7 +12,7 @@ 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 ....utils import importutil, constants
 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
@@ -185,15 +185,10 @@ 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
-                    )
-
                     payload = {
                         'query_id': query.query_id,
                         'adapter': adapter_name,
                         'runner': runner_name,
-                        'runner_category': runner_category,
                         'duration_ms': duration_ms,
                         'model_name': model_name,
                         'version': constants.semantic_version,
@@ -205,11 +200,6 @@ class ChatMessageHandler(handler.MessageHandler):
 
                     # Send telemetry asynchronously and do not block pipeline via app's telemetry manager
                     await self.ap.telemetry.start_send_task(payload)
-
-                    # Trigger survey event on first successful non-WebSocket response
-                    if not locals().get('error_info') and adapter_name and 'WebSocket' not in adapter_name:
-                        if self.ap.survey:
-                            await self.ap.survey.trigger_event('first_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}')

src/langbot/pkg/platform/botmgr.py

@@ -18,6 +18,7 @@ import langbot_plugin.api.entities.builtin.provider.session as provider_session
 import langbot_plugin.api.entities.builtin.platform.events as platform_events
 import langbot_plugin.api.entities.builtin.platform.message as platform_message
 import langbot_plugin.api.definition.abstract.platform.adapter as abstract_platform_adapter
+import langbot_plugin.api.entities.events as events
 
 
 class RuntimeBot:
@@ -82,7 +83,7 @@ class RuntimeBot:
                     if custom_launcher_id:
                         launcher_id = custom_launcher_id
 
-                await self.ap.msg_aggregator.add_message(
+                await self.ap.query_pool.add_query(
                     bot_uuid=self.bot_entity.uuid,
                     launcher_type=provider_session.LauncherTypes.PERSON,
                     launcher_id=launcher_id,
@@ -125,7 +126,7 @@ class RuntimeBot:
                     if custom_launcher_id:
                         launcher_id = custom_launcher_id
 
-                await self.ap.msg_aggregator.add_message(
+                await self.ap.query_pool.add_query(
                     bot_uuid=self.bot_entity.uuid,
                     launcher_type=provider_session.LauncherTypes.GROUP,
                     launcher_id=launcher_id,
@@ -141,6 +142,56 @@ class RuntimeBot:
         self.adapter.register_listener(platform_events.FriendMessage, on_friend_message)
         self.adapter.register_listener(platform_events.GroupMessage, on_group_message)
 
+        async def on_notice(
+            event: platform_events.NoticeEvent,
+            adapter: abstract_platform_adapter.AbstractMessagePlatformAdapter,
+        ):
+            await self.logger.info(f'Notice event: {event.notice_type} {event.sub_type}')
+
+            try:
+                event_obj = events.NoticeReceived(
+                    notice_type=event.notice_type,
+                    sub_type=event.sub_type,
+                    group_id=event.group_id,
+                    user_id=event.user_id,
+                    operator_id=event.operator_id,
+                    target_id=event.target_id,
+                    message_id=event.message_id,
+                    duration=event.duration,
+                    file=event.file,
+                    honor_type=event.honor_type,
+                )
+
+                if hasattr(self.ap, 'plugin_connector') and self.ap.plugin_connector:
+                    await self.ap.plugin_connector.emit_event(event_obj)
+            except Exception:
+                await self.logger.error(f'Error emitting notice event: {traceback.format_exc()}')
+
+        self.adapter.register_listener(platform_events.NoticeEvent, on_notice)
+
+        async def on_request(
+            event: platform_events.RequestEvent,
+            adapter: abstract_platform_adapter.AbstractMessagePlatformAdapter,
+        ):
+            await self.logger.info(f'Request event: {event.request_type} {event.sub_type}')
+
+            try:
+                event_obj = events.RequestReceived(
+                    request_type=event.request_type,
+                    sub_type=event.sub_type,
+                    user_id=event.user_id,
+                    group_id=event.group_id,
+                    comment=event.comment,
+                    flag=event.flag,
+                )
+
+                if hasattr(self.ap, 'plugin_connector') and self.ap.plugin_connector:
+                    await self.ap.plugin_connector.emit_event(event_obj)
+            except Exception:
+                await self.logger.error(f'Error emitting request event: {traceback.format_exc()}')
+
+        self.adapter.register_listener(platform_events.RequestEvent, on_request)
+
     async def run(self):
         async def exception_wrapper():
             try:
@@ -282,8 +333,6 @@ class PlatformManager:
         return runtime_bot
 
     async def get_bot_by_uuid(self, bot_uuid: str) -> RuntimeBot | None:
-        if self.websocket_proxy_bot and self.websocket_proxy_bot.bot_entity.uuid == bot_uuid:
-            return self.websocket_proxy_bot
         for bot in self.bots:
             if bot.bot_entity.uuid == bot_uuid:
                 return bot

src/langbot/pkg/platform/sources/aiocqhttp.py

@@ -306,9 +306,8 @@ class AiocqhttpEventConverter(abstract_platform_adapter.AbstractEventConverter):
 
     @staticmethod
     async def target2yiri(event: aiocqhttp.Event, bot=None):
-        yiri_chain = await AiocqhttpMessageConverter.target2yiri(event.message, event.message_id, bot)
-
         if event.message_type == 'group':
+            yiri_chain = await AiocqhttpMessageConverter.target2yiri(event.message, event.message_id, bot)
             permission = 'MEMBER'
 
             if 'role' in event.sender:
@@ -334,6 +333,7 @@ class AiocqhttpEventConverter(abstract_platform_adapter.AbstractEventConverter):
             )
             return converted_event
         elif event.message_type == 'private':
+            yiri_chain = await AiocqhttpMessageConverter.target2yiri(event.message, event.message_id, bot)
             return platform_events.FriendMessage(
                 sender=platform_entities.Friend(
                     id=event.sender['user_id'],
@@ -344,6 +344,57 @@ class AiocqhttpEventConverter(abstract_platform_adapter.AbstractEventConverter):
                 time=event.time,
                 source_platform_object=event,
             )
+        elif event.post_type == 'notice':
+            yiri_chain = platform_message.MessageChain(
+                [
+                    platform_message.Source(id=-1, time=datetime.datetime.now()),
+                    platform_message.Notice(
+                        notice_type=event.get('notice_type', ''),
+                        sub_type=event.get('sub_type', ''),
+                        user_id=event.get('user_id', None),
+                        target_id=event.get('target_id', None),
+                        group_id=event.get('group_id', None),
+                        operator_id=event.get('operator_id', None),
+                        message_id=event.get('message_id', None),
+                        duration=event.get('duration', None),
+                        file=event.get('file', None),
+                        honor_type=event.get('honor_type', None),
+                    ),
+                ]
+            )
+            return platform_events.NoticeEvent(
+                notice_type=event.get('notice_type', ''),
+                sub_type=event.get('sub_type', ''),
+                user_id=event.get('user_id', None),
+                target_id=event.get('target_id', None),
+                group_id=event.get('group_id', None),
+                time=event.time,
+                source_platform_object=event,
+            )
+        elif event.post_type == 'request':
+            yiri_chain = platform_message.MessageChain(
+                [
+                    platform_message.Source(id=-1, time=datetime.datetime.now()),
+                    platform_message.Request(
+                        request_type=event.get('request_type', ''),
+                        sub_type=event.get('sub_type', ''),
+                        user_id=event.get('user_id', None),
+                        group_id=event.get('group_id', None),
+                        comment=event.get('comment', ''),
+                        flag=event.get('flag', ''),
+                    ),
+                ]
+            )
+            return platform_events.RequestEvent(
+                request_type=event.get('request_type', ''),
+                sub_type=event.get('sub_type', ''),
+                user_id=event.get('user_id', None),
+                group_id=event.get('group_id', None),
+                comment=event.get('comment', ''),
+                flag=event.get('flag', ''),
+                time=event.time,
+                source_platform_object=event,
+            )
 
 
 class AiocqhttpAdapter(abstract_platform_adapter.AbstractMessagePlatformAdapter):
@@ -375,18 +426,6 @@ class AiocqhttpAdapter(abstract_platform_adapter.AbstractMessagePlatformAdapter)
             self.bot = aiocqhttp.CQHttp()
 
     async def send_message(self, target_type: str, target_id: str, message: platform_message.MessageChain):
-        # Check if message contains a Forward component
-        forward_msg = message.get_first(platform_message.Forward)
-        if forward_msg:
-            if target_type == 'group':
-                # Send as merged forward message via OneBot API
-                await self._send_forward_message(int(target_id), forward_msg)
-                return
-            else:
-                await self.logger.warning(
-                    f'Forward message is only supported for group targets, got target_type={target_type}. Falling through to normal send.'
-                )
-
         aiocq_msg = (await AiocqhttpMessageConverter.yiri2target(message))[0]
 
         if target_type == 'group':
@@ -394,90 +433,6 @@ class AiocqhttpAdapter(abstract_platform_adapter.AbstractMessagePlatformAdapter)
         elif target_type == 'person':
             await self.bot.send_private_msg(user_id=int(target_id), message=aiocq_msg)
 
-    async def _send_forward_message(self, group_id: int, forward: platform_message.Forward):
-        """Send a merged forward message to a group using NapCat extended API."""
-        messages = []
-
-        for node in forward.node_list:
-            # Build content for each node
-            content = []
-            if node.message_chain:
-                for component in node.message_chain:
-                    if isinstance(component, platform_message.Plain):
-                        if component.text:
-                            content.append({'type': 'text', 'data': {'text': component.text}})
-                    elif isinstance(component, platform_message.Image):
-                        img_data = {}
-                        if component.base64:
-                            b64 = component.base64
-                            if b64.startswith('data:'):
-                                b64 = b64.split(',', 1)[-1] if ',' in b64 else b64
-                            img_data['file'] = f'base64://{b64}'
-                        elif component.url:
-                            img_data['file'] = component.url
-                        elif component.path:
-                            img_data['file'] = str(component.path)
-
-                        if img_data:
-                            content.append({'type': 'image', 'data': img_data})
-
-            if not content:
-                continue
-
-            # Build node data - use user_id and nickname format for NapCat
-            user_id = str(node.sender_id) if node.sender_id else str(self.bot_account_id or '10000')
-            node_data = {
-                'type': 'node',
-                'data': {
-                    'user_id': user_id,
-                    'nickname': node.sender_name or '未知',
-                    'content': content,
-                },
-            }
-
-            messages.append(node_data)
-
-        if not messages:
-            return
-
-        # Build the full message payload for NapCat's send_forward_msg API
-        # This matches the format used by GiveMeSetuPlugin
-        bot_id = str(self.bot_account_id) if self.bot_account_id else '10000'
-        payload = {
-            'group_id': group_id,
-            'user_id': bot_id,  # Required by NapCat for display
-            'messages': messages,
-        }
-
-        # Add display settings if available
-        if forward.display:
-            if forward.display.title:
-                payload['news'] = [{'text': forward.display.title}]
-            if forward.display.brief:
-                payload['prompt'] = forward.display.brief
-            if forward.display.summary:
-                payload['summary'] = forward.display.summary
-            if forward.display.source:
-                payload['source'] = forward.display.source
-
-        try:
-            # Use send_forward_msg (NapCat extended API) instead of send_group_forward_msg
-            await self.logger.info(
-                f'Sending forward message to group {group_id} with {len(messages)} nodes, payload keys: {list(payload.keys())}'
-            )
-            result = await self.bot.call_action('send_forward_msg', **payload)
-            await self.logger.info(f'Forward message sent to group {group_id}, result: {result}')
-        except Exception as e:
-            await self.logger.error(f'Failed to send forward message to group {group_id}: {e}')
-            # Fallback: try standard OneBot API with integer group_id
-            try:
-                await self.logger.info('Trying fallback API send_group_forward_msg')
-                await self.bot.call_action('send_group_forward_msg', group_id=group_id, messages=messages)
-                await self.logger.info(f'Forward message sent via fallback API to group {group_id}')
-            except Exception as e2:
-                await self.logger.error(f'Fallback also failed: {e2}')
-                raise
-
     async def reply_message(
         self,
         message_source: platform_events.MessageEvent,
@@ -509,12 +464,31 @@ class AiocqhttpAdapter(abstract_platform_adapter.AbstractMessagePlatformAdapter)
                 await self.logger.error(f'Error in on_message: {traceback.format_exc()}')
                 traceback.print_exc()
 
+        async def on_notice(event: aiocqhttp.Event):
+            self.bot_account_id = event.self_id
+            try:
+                return await callback(await self.event_converter.target2yiri(event, self.bot), self)
+            except Exception:
+                await self.logger.error(f'Error in on_notice: {traceback.format_exc()}')
+                traceback.print_exc()
+
+        async def on_request(event: aiocqhttp.Event):
+            self.bot_account_id = event.self_id
+            try:
+                return await callback(await self.event_converter.target2yiri(event, self.bot), self)
+            except Exception:
+                await self.logger.error(f'Error in on_request: {traceback.format_exc()}')
+                traceback.print_exc()
+
         if event_type == platform_events.GroupMessage:
             self.bot.on_message('group')(on_message)
             # self.bot.on_notice()(on_message)
         elif event_type == platform_events.FriendMessage:
             self.bot.on_message('private')(on_message)
-            # self.bot.on_notice()(on_message)
+        elif event_type == platform_events.NoticeEvent:
+            self.bot.on_notice()(on_notice)
+        elif event_type == platform_events.RequestEvent:
+            self.bot.on_request()(on_request)
         # print(event_type)
 
         async def on_websocket_connection(event: aiocqhttp.Event):

src/langbot/pkg/platform/sources/discord.py

@@ -14,7 +14,7 @@ import io
 import asyncio
 from enum import Enum
 
-from langbot.pkg.utils import httpclient
+import aiohttp
 import pydantic
 
 import langbot_plugin.api.definition.abstract.platform.adapter as abstract_platform_adapter
@@ -622,23 +622,23 @@ class DiscordMessageConverter(abstract_platform_adapter.AbstractMessageConverter
                     image_bytes = base64.b64decode(base64_data)
                 elif ele.url:
                     # 从URL下载图片
-                    session = httpclient.get_session()
-                    async with session.get(ele.url) as response:
-                        image_bytes = await response.read()
-                        # 从URL或Content-Type推断文件类型
-                        content_type = response.headers.get('Content-Type', '')
-                        if 'jpeg' in content_type or 'jpg' in content_type:
-                            filename = f'{uuid.uuid4()}.jpg'
-                        elif 'gif' in content_type:
-                            filename = f'{uuid.uuid4()}.gif'
-                        elif 'webp' in content_type:
-                            filename = f'{uuid.uuid4()}.webp'
-                        elif ele.url.lower().endswith(('.jpg', '.jpeg')):
-                            filename = f'{uuid.uuid4()}.jpg'
-                        elif ele.url.lower().endswith('.gif'):
-                            filename = f'{uuid.uuid4()}.gif'
-                        elif ele.url.lower().endswith('.webp'):
-                            filename = f'{uuid.uuid4()}.webp'
+                    async with aiohttp.ClientSession() as session:
+                        async with session.get(ele.url) as response:
+                            image_bytes = await response.read()
+                            # 从URL或Content-Type推断文件类型
+                            content_type = response.headers.get('Content-Type', '')
+                            if 'jpeg' in content_type or 'jpg' in content_type:
+                                filename = f'{uuid.uuid4()}.jpg'
+                            elif 'gif' in content_type:
+                                filename = f'{uuid.uuid4()}.gif'
+                            elif 'webp' in content_type:
+                                filename = f'{uuid.uuid4()}.webp'
+                            elif ele.url.lower().endswith(('.jpg', '.jpeg')):
+                                filename = f'{uuid.uuid4()}.jpg'
+                            elif ele.url.lower().endswith('.gif'):
+                                filename = f'{uuid.uuid4()}.gif'
+                            elif ele.url.lower().endswith('.webp'):
+                                filename = f'{uuid.uuid4()}.webp'
                 elif ele.path:
                     # 从文件路径读取图片
                     # 确保路径没有空字节
@@ -702,9 +702,9 @@ class DiscordMessageConverter(abstract_platform_adapter.AbstractMessageConverter
                     file_base64 = ele.base64.split(',')[-1]
                     file_bytes = base64.b64decode(file_base64)
                 elif ele.url:
-                    session = httpclient.get_session()
-                    async with session.get(ele.url) as response:
-                        file_bytes = await response.read()
+                    async with aiohttp.ClientSession() as session:
+                        async with session.get(ele.url) as response:
+                            file_bytes = await response.read()
                 if file_bytes:
                     files.append(discord.File(fp=io.BytesIO(file_bytes), filename=filename))
             elif isinstance(ele, platform_message.File):
@@ -717,9 +717,9 @@ class DiscordMessageConverter(abstract_platform_adapter.AbstractMessageConverter
                     else:
                         file_bytes = base64.b64decode(ele.base64)
                 elif ele.url:
-                    session = httpclient.get_session()
-                    async with session.get(ele.url) as response:
-                        file_bytes = await response.read()
+                    async with aiohttp.ClientSession() as session:
+                        async with session.get(ele.url) as response:
+                            file_bytes = await response.read()
                 if file_bytes:
                     files.append(discord.File(fp=io.BytesIO(file_bytes), filename=filename))
             elif isinstance(ele, platform_message.Forward):
@@ -775,12 +775,12 @@ class DiscordMessageConverter(abstract_platform_adapter.AbstractMessageConverter
 
         # attachments
         for attachment in message.attachments:
-            session = httpclient.get_session(trust_env=True)
-            async with session.get(attachment.url) as response:
-                image_data = await response.read()
-                image_base64 = base64.b64encode(image_data).decode('utf-8')
-                image_format = response.headers['Content-Type']
-                element_list.append(platform_message.Image(base64=f'data:{image_format};base64,{image_base64}'))
+            async with aiohttp.ClientSession(trust_env=True) as session:
+                async with session.get(attachment.url) as response:
+                    image_data = await response.read()
+                    image_base64 = base64.b64encode(image_data).decode('utf-8')
+                    image_format = response.headers['Content-Type']
+                    element_list.append(platform_message.Image(base64=f'data:{image_format};base64,{image_base64}'))
 
         return platform_message.MessageChain(element_list)
 

src/langbot/pkg/platform/sources/kook.py

@@ -9,8 +9,6 @@ import traceback
 import time
 
 import aiohttp
-
-from langbot.pkg.utils import httpclient
 import websockets
 import pydantic
 
@@ -122,16 +120,16 @@ class KookMessageConverter(abstract_platform_adapter.AbstractMessageConverter):
             if content:
                 # Download image and convert to base64
                 try:
-                    session = httpclient.get_session()
-                    async with session.get(content) as response:
-                        if response.status == 200:
-                            image_bytes = await response.read()
-                            image_base64 = base64.b64encode(image_bytes).decode('utf-8')
-                            # Detect image format
-                            content_type = response.headers.get('Content-Type', 'image/png')
-                            components.append(
-                                platform_message.Image(base64=f'data:{content_type};base64,{image_base64}')
-                            )
+                    async with aiohttp.ClientSession() as session:
+                        async with session.get(content) as response:
+                            if response.status == 200:
+                                image_bytes = await response.read()
+                                image_base64 = base64.b64encode(image_bytes).decode('utf-8')
+                                # Detect image format
+                                content_type = response.headers.get('Content-Type', 'image/png')
+                                components.append(
+                                    platform_message.Image(base64=f'data:{content_type};base64,{image_base64}')
+                                )
                 except Exception:
                     # If download fails, just add as plain text
                     components.append(platform_message.Plain(text=f'[Image: {content}]'))
@@ -297,17 +295,17 @@ class KookAdapter(abstract_platform_adapter.AbstractMessagePlatformAdapter):
             'Authorization': f'Bot {self.config["token"]}',
         }
 
-        session = httpclient.get_session()
-        async with session.get(base_url, params=params, headers=headers) as response:
-            if response.status == 200:
-                data = await response.json()
-                if data.get('code') == 0:
-                    gateway_url = data['data']['url']
-                    return gateway_url
+        async with aiohttp.ClientSession() as session:
+            async with session.get(base_url, params=params, headers=headers) as response:
+                if response.status == 200:
+                    data = await response.json()
+                    if data.get('code') == 0:
+                        gateway_url = data['data']['url']
+                        return gateway_url
+                    else:
+                        raise Exception(f'Failed to get gateway URL: {data.get("message")}')
                 else:
-                    raise Exception(f'Failed to get gateway URL: {data.get("message")}')
-            else:
-                raise Exception(f'Failed to get gateway URL: HTTP {response.status}')
+                    raise Exception(f'Failed to get gateway URL: HTTP {response.status}')
 
     async def _get_bot_user_info(self) -> dict:
         """Get bot's own user information from KOOK API"""
@@ -317,17 +315,17 @@ class KookAdapter(abstract_platform_adapter.AbstractMessagePlatformAdapter):
             'Authorization': f'Bot {self.config["token"]}',
         }
 
-        session = httpclient.get_session()
-        async with session.get(base_url, headers=headers) as response:
-            if response.status == 200:
-                data = await response.json()
-                if data.get('code') == 0:
-                    user_info = data['data']
-                    return user_info
+        async with aiohttp.ClientSession() as session:
+            async with session.get(base_url, headers=headers) as response:
+                if response.status == 200:
+                    data = await response.json()
+                    if data.get('code') == 0:
+                        user_info = data['data']
+                        return user_info
+                    else:
+                        raise Exception(f'Failed to get bot user info: {data.get("message")}')
                 else:
-                    raise Exception(f'Failed to get bot user info: {data.get("message")}')
-            else:
-                raise Exception(f'Failed to get bot user info: HTTP {response.status}')
+                    raise Exception(f'Failed to get bot user info: HTTP {response.status}')
 
     async def _handle_hello(self, data: dict):
         """Handle HELLO signal (signal 1)"""
@@ -512,7 +510,7 @@ class KookAdapter(abstract_platform_adapter.AbstractMessagePlatformAdapter):
 
         try:
             if not self.http_session:
-                self.http_session = httpclient.get_session()
+                self.http_session = aiohttp.ClientSession()
 
             async with self.http_session.post(url, json=payload, headers=headers) as response:
                 if response.status == 200:
@@ -578,7 +576,7 @@ class KookAdapter(abstract_platform_adapter.AbstractMessagePlatformAdapter):
 
         try:
             if not self.http_session:
-                self.http_session = httpclient.get_session()
+                self.http_session = aiohttp.ClientSession()
 
             async with self.http_session.post(url, json=payload, headers=headers) as response:
                 if response.status == 200:
@@ -626,7 +624,7 @@ class KookAdapter(abstract_platform_adapter.AbstractMessagePlatformAdapter):
 
         try:
             # Create HTTP session
-            self.http_session = httpclient.get_session()
+            self.http_session = aiohttp.ClientSession()
 
             await self.logger.info('Starting KOOK adapter')
 

src/langbot/pkg/platform/sources/lark.py

@@ -1,7 +1,7 @@
 from __future__ import annotations
 
 import lark_oapi
-from lark_oapi.api.im.v1 import CreateImageRequest, CreateImageRequestBody, CreateFileRequest, CreateFileRequestBody
+from lark_oapi.api.im.v1 import CreateImageRequest, CreateImageRequestBody
 import traceback
 import typing
 import asyncio
@@ -17,7 +17,7 @@ import tempfile
 import os
 import mimetypes
 
-from langbot.pkg.utils import httpclient
+import aiohttp
 import lark_oapi.ws.exception
 import quart
 from lark_oapi.api.im.v1 import *
@@ -78,13 +78,13 @@ class LarkMessageConverter(abstract_platform_adapter.AbstractMessageConverter):
                 return None
         elif msg.url:
             try:
-                session = httpclient.get_session()
-                async with session.get(msg.url) as response:
-                    if response.status == 200:
-                        image_bytes = await response.read()
-                    else:
-                        print(f'Failed to download image from {msg.url}: HTTP {response.status}')
-                        return None
+                async with aiohttp.ClientSession() as session:
+                    async with session.get(msg.url) as response:
+                        if response.status == 200:
+                            image_bytes = await response.read()
+                        else:
+                            print(f'Failed to download image from {msg.url}: HTTP {response.status}')
+                            return None
             except Exception as e:
                 print(f'Failed to download image from {msg.url}: {e}')
                 traceback.print_exc()
@@ -141,88 +141,6 @@ class LarkMessageConverter(abstract_platform_adapter.AbstractMessageConverter):
             traceback.print_exc()
             return None
 
-    @staticmethod
-    async def upload_file_to_lark(
-        file_bytes: bytes,
-        api_client: lark_oapi.Client,
-        file_type: str,
-        file_name: str = 'file',
-        duration: typing.Optional[int] = None,
-    ) -> typing.Optional[str]:
-        """Upload a file to Lark and return the file_key, or None if upload fails.
-
-        Args:
-            file_bytes: Raw file bytes.
-            api_client: Lark API client.
-            file_type: Lark file type, e.g. 'opus', 'mp4', 'pdf', 'doc', etc.
-            file_name: Display name for the file.
-            duration: Duration in milliseconds (for audio files).
-        """
-        try:
-            with tempfile.NamedTemporaryFile(delete=False) as temp_file:
-                temp_file.write(file_bytes)
-                temp_file_path = temp_file.name
-
-            try:
-                body_builder = (
-                    CreateFileRequestBody.builder()
-                    .file_type(file_type)
-                    .file_name(file_name)
-                    .file(open(temp_file_path, 'rb'))
-                )
-                if duration is not None:
-                    body_builder = body_builder.duration(duration)
-
-                request = CreateFileRequest.builder().request_body(body_builder.build()).build()
-
-                response = await api_client.im.v1.file.acreate(request)
-
-                if not response.success():
-                    print(
-                        f'client.im.v1.file.create failed, code: {response.code}, msg: {response.msg}, log_id: {response.get_log_id()}'
-                    )
-                    return None
-
-                return response.data.file_key
-            finally:
-                os.unlink(temp_file_path)
-        except Exception as e:
-            print(f'Failed to upload file to Lark: {e}')
-            traceback.print_exc()
-            return None
-
-    @staticmethod
-    async def _get_media_bytes(
-        msg: typing.Union[platform_message.Voice, platform_message.File],
-    ) -> typing.Optional[bytes]:
-        """Get bytes from a Voice or File message (base64, url, or path)."""
-        data = None
-
-        if msg.base64:
-            try:
-                base64_str = msg.base64
-                if ',' in base64_str:
-                    base64_str = base64_str.split(',', 1)[1]
-                data = base64.b64decode(base64_str)
-            except Exception:
-                pass
-        elif msg.url:
-            try:
-                session = httpclient.get_session()
-                async with session.get(msg.url) as resp:
-                    if resp.status == 200:
-                        data = await resp.read()
-            except Exception:
-                pass
-        elif msg.path:
-            try:
-                with open(msg.path, 'rb') as f:
-                    data = f.read()
-            except Exception:
-                pass
-
-        return data
-
     @staticmethod
     async def yiri2target(
         message_chain: platform_message.MessageChain, api_client: lark_oapi.Client
@@ -232,10 +150,10 @@ class LarkMessageConverter(abstract_platform_adapter.AbstractMessageConverter):
         Returns:
             Tuple of (text_elements, image_keys):
             - text_elements: List of paragraphs for post message format
-            - media_items: List of dicts with 'msg_type' and 'content' for separate media messages
+            - image_keys: List of image_key strings for separate image messages
         """
         message_elements = []
-        media_items = []
+        image_keys = []
         pending_paragraph = []
 
         # Regex pattern to match Markdown image syntax: ![alt](url)
@@ -278,77 +196,40 @@ class LarkMessageConverter(abstract_platform_adapter.AbstractMessageConverter):
                 # Check for and extract Markdown images from text
                 cleaned_text, extracted_urls = await process_text_with_images(text)
 
-                # Split by blank lines to create separate paragraphs for Lark post format.
-                # Lark truncates md elements at the first \n\n, so we must use the
-                # post format's native paragraph structure instead.
+                # Add cleaned text if not empty
                 if cleaned_text:
-                    segments = re.split(r'\n\s*\n', cleaned_text)
-                    for i, segment in enumerate(segments):
-                        segment = segment.strip()
-                        if not segment:
-                            continue
-                        if i > 0 and pending_paragraph:
-                            message_elements.append(pending_paragraph)
-                            pending_paragraph = []
-                        pending_paragraph.append({'tag': 'md', 'text': segment})
+                    pending_paragraph.append({'tag': 'md', 'text': cleaned_text})
 
                 # Process extracted image URLs
                 for url in extracted_urls:
+                    # Create a temporary Image message to upload
                     temp_image = platform_message.Image(url=url)
                     image_key = await LarkMessageConverter.upload_image_to_lark(temp_image, api_client)
                     if image_key:
-                        media_items.append({'msg_type': 'image', 'content': {'image_key': image_key}})
+                        image_keys.append(image_key)
 
             elif isinstance(msg, platform_message.At):
                 pending_paragraph.append({'tag': 'at', 'user_id': msg.target, 'style': []})
             elif isinstance(msg, platform_message.AtAll):
                 pending_paragraph.append({'tag': 'at', 'user_id': 'all', 'style': []})
             elif isinstance(msg, platform_message.Image):
+                # Upload image and get image_key
                 image_key = await LarkMessageConverter.upload_image_to_lark(msg, api_client)
                 if image_key:
-                    media_items.append({'msg_type': 'image', 'content': {'image_key': image_key}})
-            elif isinstance(msg, platform_message.Voice):
-                data = await LarkMessageConverter._get_media_bytes(msg)
-                if data:
-                    duration = int(msg.length * 1000) if msg.length else None
-                    file_key = await LarkMessageConverter.upload_file_to_lark(
-                        data, api_client, file_type='opus', file_name='voice.opus', duration=duration
-                    )
-                    if file_key:
-                        media_items.append({'msg_type': 'audio', 'content': {'file_key': file_key}})
-            elif isinstance(msg, platform_message.File):
-                data = await LarkMessageConverter._get_media_bytes(msg)
-                if data:
-                    file_name = msg.name or 'file'
-                    # Guess file_type from extension
-                    ext = os.path.splitext(file_name)[1].lstrip('.').lower() if file_name else ''
-                    file_type_map = {
-                        'opus': 'opus',
-                        'mp4': 'mp4',
-                        'pdf': 'pdf',
-                        'doc': 'doc',
-                        'docx': 'doc',
-                        'xls': 'xls',
-                        'xlsx': 'xls',
-                        'ppt': 'ppt',
-                        'pptx': 'ppt',
-                    }
-                    file_type = file_type_map.get(ext, 'stream')
-                    file_key = await LarkMessageConverter.upload_file_to_lark(
-                        data, api_client, file_type=file_type, file_name=file_name
-                    )
-                    if file_key:
-                        media_items.append({'msg_type': 'file', 'content': {'file_key': file_key}})
+                    # Store image_key for separate image message
+                    image_keys.append(image_key)
             elif isinstance(msg, platform_message.Forward):
                 for node in msg.node_list:
-                    sub_elements, sub_media = await LarkMessageConverter.yiri2target(node.message_chain, api_client)
+                    sub_elements, sub_image_keys = await LarkMessageConverter.yiri2target(
+                        node.message_chain, api_client
+                    )
                     message_elements.extend(sub_elements)
-                    media_items.extend(sub_media)
+                    image_keys.extend(sub_image_keys)
 
         if pending_paragraph:
             message_elements.append(pending_paragraph)
 
-        return message_elements, media_items
+        return message_elements, image_keys
 
     @staticmethod
     async def target2yiri(
@@ -1036,40 +917,23 @@ class LarkAdapter(abstract_platform_adapter.AbstractMessagePlatformAdapter):
     ):
         # 不再需要了，因为message_id已经被包含到message_chain中
         # lark_event = await self.event_converter.yiri2target(message_source)
-        text_elements, media_items = await self.message_converter.yiri2target(message, self.api_client)
+        text_elements, image_keys = await self.message_converter.yiri2target(message, self.api_client)
 
         # Send text message if there are text elements
         if text_elements:
-            # Determine msg_type based on content: use 'post' if at mentions
-            # are present (requires post paragraph structure), otherwise 'text'
-            needs_post = any(ele['tag'] == 'at' for paragraph in text_elements for ele in paragraph)
-
-            if needs_post:
-                msg_type = 'post'
-                final_content = json.dumps(
-                    {
-                        'zh_Hans': {
-                            'title': '',
-                            'content': text_elements,
-                        },
-                    }
-                )
-            else:
-                msg_type = 'text'
-                parts = []
-                for paragraph in text_elements:
-                    para_text = ''.join(ele.get('text', '') for ele in paragraph)
-                    if para_text:
-                        parts.append(para_text)
-                final_content = json.dumps({'text': '\n\n'.join(parts)})
-
+            final_content = {
+                'zh_Hans': {
+                    'title': '',
+                    'content': text_elements,
+                },
+            }
             request: ReplyMessageRequest = (
                 ReplyMessageRequest.builder()
                 .message_id(message_source.message_chain.message_id)
                 .request_body(
                     ReplyMessageRequestBody.builder()
-                    .content(final_content)
-                    .msg_type(msg_type)
+                    .content(json.dumps(final_content))
+                    .msg_type('post')
                     .reply_in_thread(False)
                     .uuid(str(uuid.uuid4()))
                     .build()
@@ -1099,15 +963,17 @@ class LarkAdapter(abstract_platform_adapter.AbstractMessagePlatformAdapter):
                     f'client.im.v1.message.reply failed, code: {response.code}, msg: {response.msg}, log_id: {response.get_log_id()}, resp: \n{json.dumps(json.loads(response.raw.content), indent=4, ensure_ascii=False)}'
                 )
 
-        # Send media messages separately (image, audio, file, etc.)
-        for media in media_items:
+        # Send image messages separately using msg_type='image'
+        for image_key in image_keys:
+            image_content = json.dumps({'image_key': image_key})
+
             request: ReplyMessageRequest = (
                 ReplyMessageRequest.builder()
                 .message_id(message_source.message_chain.message_id)
                 .request_body(
                     ReplyMessageRequestBody.builder()
-                    .content(json.dumps(media['content']))
-                    .msg_type(media['msg_type'])
+                    .content(image_content)
+                    .msg_type('image')
                     .reply_in_thread(False)
                     .uuid(str(uuid.uuid4()))
                     .build()
@@ -1134,7 +1000,7 @@ class LarkAdapter(abstract_platform_adapter.AbstractMessagePlatformAdapter):
 
             if not response.success():
                 raise Exception(
-                    f'client.im.v1.message.reply ({media["msg_type"]}) failed, code: {response.code}, msg: {response.msg}, log_id: {response.get_log_id()}, resp: \n{json.dumps(json.loads(response.raw.content), indent=4, ensure_ascii=False)}'
+                    f'client.im.v1.message.reply (image) failed, code: {response.code}, msg: {response.msg}, log_id: {response.get_log_id()}, resp: \n{json.dumps(json.loads(response.raw.content), indent=4, ensure_ascii=False)}'
                 )
 
     async def reply_message_chunk(
@@ -1152,16 +1018,15 @@ class LarkAdapter(abstract_platform_adapter.AbstractMessagePlatformAdapter):
         message_id = bot_message.resp_message_id
         msg_seq = bot_message.msg_sequence
         if msg_seq % 8 == 0 or is_final:
-            text_elements, media_items = await self.message_converter.yiri2target(message, self.api_client)
+            text_elements, image_keys = await self.message_converter.yiri2target(message, self.api_client)
 
             text_message = ''
             if text_elements:
-                parts = []
-                for paragraph in text_elements:
-                    para_text = ''.join(ele['text'] for ele in paragraph if ele['tag'] in ('text', 'md'))
-                    if para_text:
-                        parts.append(para_text)
-                text_message = '\n\n'.join(parts)
+                for ele in text_elements[0]:
+                    if ele['tag'] == 'text':
+                        text_message += ele['text']
+                    elif ele['tag'] == 'md':
+                        text_message += ele['text']
 
             # content = {
             #     'type': 'card_json',
@@ -1211,30 +1076,6 @@ class LarkAdapter(abstract_platform_adapter.AbstractMessagePlatformAdapter):
                 )
                 return
 
-            # Send media messages when streaming is done
-            if is_final and media_items:
-                for media in media_items:
-                    media_request: ReplyMessageRequest = (
-                        ReplyMessageRequest.builder()
-                        .message_id(message_source.message_chain.message_id)
-                        .request_body(
-                            ReplyMessageRequestBody.builder()
-                            .content(json.dumps(media['content']))
-                            .msg_type(media['msg_type'])
-                            .reply_in_thread(False)
-                            .uuid(str(uuid.uuid4()))
-                            .build()
-                        )
-                        .build()
-                    )
-                    media_response: ReplyMessageResponse = await self.api_client.im.v1.message.areply(
-                        media_request, req_opt
-                    )
-                    if not media_response.success():
-                        raise Exception(
-                            f'client.im.v1.message.reply ({media["msg_type"]}) failed, code: {media_response.code}, msg: {media_response.msg}, log_id: {media_response.get_log_id()}'
-                        )
-
     async def is_muted(self, group_id: int) -> bool:
         return False
 

src/langbot/pkg/platform/sources/legacy/gewechat.py

@@ -9,7 +9,7 @@ import copy
 import threading
 
 import quart
-from langbot.pkg.utils import httpclient
+import aiohttp
 
 import langbot_plugin.api.definition.abstract.platform.adapter as abstract_platform_adapter
 from ....core import app
@@ -639,14 +639,14 @@ class GeWeChatAdapter(abstract_platform_adapter.AbstractMessagePlatformAdapter):
 
     async def run_async(self):
         if not self.config['token']:
-            session = httpclient.get_session()
-            async with session.post(
-                f'{self.config["gewechat_url"]}/v2/api/tools/getTokenId',
-                json={'app_id': self.config['app_id']},
-            ) as response:
-                if response.status != 200:
-                    raise Exception(f'获取gewechat token失败: {await response.text()}')
-                self.config['token'] = (await response.json())['data']
+            async with aiohttp.ClientSession() as session:
+                async with session.post(
+                    f'{self.config["gewechat_url"]}/v2/api/tools/getTokenId',
+                    json={'app_id': self.config['app_id']},
+                ) as response:
+                    if response.status != 200:
+                        raise Exception(f'获取gewechat token失败: {await response.text()}')
+                    self.config['token'] = (await response.json())['data']
 
         self.bot = gewechat_client.GewechatClient(f'{self.config["gewechat_url"]}/v2/api', self.config['token'])
 

src/langbot/pkg/platform/sources/telegram.py

@@ -1,5 +1,4 @@
 from __future__ import annotations
-import time
 
 
 import telegram
@@ -10,9 +9,9 @@ import telegramify_markdown
 import typing
 import traceback
 import base64
+import aiohttp
 import pydantic
 
-from langbot.pkg.utils import httpclient
 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
@@ -34,9 +33,9 @@ class TelegramMessageConverter(abstract_platform_adapter.AbstractMessageConverte
                 if component.base64:
                     photo_bytes = base64.b64decode(component.base64)
                 elif component.url:
-                    session = httpclient.get_session()
-                    async with session.get(component.url) as response:
-                        photo_bytes = await response.read()
+                    async with aiohttp.ClientSession() as session:
+                        async with session.get(component.url) as response:
+                            photo_bytes = await response.read()
                 elif component.path:
                     with open(component.path, 'rb') as f:
                         photo_bytes = f.read()
@@ -75,9 +74,10 @@ class TelegramMessageConverter(abstract_platform_adapter.AbstractMessageConverte
             file_bytes = None
             file_format = ''
 
-            async with httpclient.get_session(trust_env=True).get(file.file_path) as response:
-                file_bytes = await response.read()
-                file_format = 'image/jpeg'
+            async with aiohttp.ClientSession(trust_env=True) as session:
+                async with session.get(file.file_path) as response:
+                    file_bytes = await response.read()
+                    file_format = 'image/jpeg'
 
             message_components.append(
                 platform_message.Image(
@@ -94,8 +94,9 @@ class TelegramMessageConverter(abstract_platform_adapter.AbstractMessageConverte
             file_bytes = None
             file_format = message.voice.mime_type or 'audio/ogg'
 
-            async with httpclient.get_session(trust_env=True).get(file.file_path) as response:
-                file_bytes = await response.read()
+            async with aiohttp.ClientSession(trust_env=True) as session:
+                async with session.get(file.file_path) as response:
+                    file_bytes = await response.read()
 
             message_components.append(
                 platform_message.Voice(
@@ -193,31 +194,7 @@ class TelegramAdapter(abstract_platform_adapter.AbstractMessagePlatformAdapter):
         )
 
     async def send_message(self, target_type: str, target_id: str, message: platform_message.MessageChain):
-        components = await TelegramMessageConverter.yiri2target(message, self.bot)
-
-        chat_id_str, _, thread_id_str = str(target_id).partition('#')
-        chat_id: int | str = int(chat_id_str) if chat_id_str.lstrip('-').isdigit() else chat_id_str
-        message_thread_id = int(thread_id_str) if thread_id_str and thread_id_str.isdigit() else None
-
-        for component in components:
-            component_type = component.get('type')
-            args = {'chat_id': chat_id}
-            if message_thread_id is not None:
-                args['message_thread_id'] = message_thread_id
-
-            if component_type == 'text':
-                text = component.get('text', '')
-                if self.config['markdown_card'] is True:
-                    text = telegramify_markdown.markdownify(content=text)
-                    args['parse_mode'] = 'MarkdownV2'
-                args['text'] = text
-                await self.bot.send_message(**args)
-            elif component_type == 'photo':
-                photo = component.get('photo')
-                if photo is None:
-                    continue
-                args['photo'] = telegram.InputFile(photo)
-                await self.bot.send_photo(**args)
+        pass
 
     async def reply_message(
         self,
@@ -251,39 +228,6 @@ class TelegramAdapter(abstract_platform_adapter.AbstractMessagePlatformAdapter):
 
         await self.bot.send_message(**args)
 
-    def _process_markdown(self, text: str) -> str:
-        if self.config.get('markdown_card', False):
-            return telegramify_markdown.markdownify(content=text)
-        return text
-
-    def _build_message_args(self, chat_id: int, text: str, message_thread_id: int = None, **extra_args) -> dict:
-        args = {'chat_id': chat_id, 'text': self._process_markdown(text), **extra_args}
-        if message_thread_id:
-            args['message_thread_id'] = message_thread_id
-        if self.config.get('markdown_card', False):
-            args['parse_mode'] = 'MarkdownV2'
-        return args
-
-    async def create_message_card(self, message_id, event):
-        assert isinstance(event.source_platform_object, Update)
-        update = event.source_platform_object
-        chat_id = update.effective_chat.id
-        chat_type = update.effective_chat.type
-        message_thread_id = update.message.message_thread_id
-
-        if chat_type == 'private':
-            draft_id = int(time.time() * 1000)
-            self.msg_stream_id[message_id] = ('private', draft_id)
-
-            args = self._build_message_args(chat_id, 'Thinking...', message_thread_id, draft_id=draft_id)
-            await self.bot.send_message_draft(**args)
-        else:
-            args = self._build_message_args(chat_id, 'Thinking...', message_thread_id)
-            send_msg = await self.bot.send_message(**args)
-            self.msg_stream_id[message_id] = ('group', send_msg.message_id)
-
-        return True
-
     async def reply_message_chunk(
         self,
         message_source: platform_events.MessageEvent,
@@ -292,47 +236,59 @@ class TelegramAdapter(abstract_platform_adapter.AbstractMessagePlatformAdapter):
         quote_origin: bool = False,
         is_final: bool = False,
     ):
-        message_id = bot_message.resp_message_id
         msg_seq = bot_message.msg_sequence
-        assert isinstance(message_source.source_platform_object, Update)
-        update = message_source.source_platform_object
-        chat_id = update.effective_chat.id
-        message_thread_id = update.message.message_thread_id
+        if (msg_seq - 1) % 8 == 0 or is_final:
+            assert isinstance(message_source.source_platform_object, Update)
+            components = await TelegramMessageConverter.yiri2target(message, self.bot)
+            args = {}
+            message_id = message_source.source_platform_object.message.id
 
-        if message_id not in self.msg_stream_id:
-            return
+            component = components[0]
+            if message_id not in self.msg_stream_id:  # 当消息回复第一次时，发送新消息
+                # time.sleep(0.6)
+                if component['type'] == 'text':
+                    if self.config['markdown_card'] is True:
+                        content = telegramify_markdown.markdownify(
+                            content=component['text'],
+                        )
+                    else:
+                        content = component['text']
+                    args = {
+                        'chat_id': message_source.source_platform_object.effective_chat.id,
+                        'text': content,
+                    }
+                    if message_source.source_platform_object.message.message_thread_id:
+                        args['message_thread_id'] = message_source.source_platform_object.message.message_thread_id
 
-        chat_mode, draft_id = self.msg_stream_id[message_id]
-        components = await TelegramMessageConverter.yiri2target(message, self.bot)
+                    if quote_origin:
+                        args['reply_to_message_id'] = message_source.source_platform_object.message.id
 
-        if not components or components[0]['type'] != 'text':
-            if is_final and bot_message.tool_calls is None:
-                self.msg_stream_id.pop(message_id)
-            return
+                    if self.config['markdown_card'] is True:
+                        args['parse_mode'] = 'MarkdownV2'
 
-        content = components[0]['text']
+                send_msg = await self.bot.send_message(**args)
+                send_msg_id = send_msg.message_id
+                self.msg_stream_id[message_id] = send_msg_id
+            else:  # 存在消息的时候直接编辑消息1
+                if component['type'] == 'text':
+                    if self.config['markdown_card'] is True:
+                        content = telegramify_markdown.markdownify(
+                            content=component['text'],
+                        )
+                    else:
+                        content = component['text']
+                    args = {
+                        'message_id': self.msg_stream_id[message_id],
+                        'chat_id': message_source.source_platform_object.effective_chat.id,
+                        'text': content,
+                    }
+                    if self.config['markdown_card'] is True:
+                        args['parse_mode'] = 'MarkdownV2'
 
-        if chat_mode == 'private':
-            args = self._build_message_args(chat_id, content, message_thread_id, draft_id=draft_id)
-            await self.bot.send_message_draft(**args)
-            if is_final and bot_message.tool_calls is None:
-                del args['draft_id']
-                await self.bot.send_message(**args)
-                self.msg_stream_id.pop(message_id)
-        else:
-            stream_id = draft_id
-            if (msg_seq - 1) % 8 == 0 or is_final:
-                args = {
-                    'message_id': stream_id,
-                    'chat_id': chat_id,
-                    'text': self._process_markdown(content),
-                }
-                if self.config.get('markdown_card', False):
-                    args['parse_mode'] = 'MarkdownV2'
                 await self.bot.edit_message_text(**args)
-
             if is_final and bot_message.tool_calls is None:
-                self.msg_stream_id.pop(message_id)
+                # self.seq = 1  # 消息回复结束之后重置seq
+                self.msg_stream_id.pop(message_id)  # 消息回复结束之后删除流式消息id
 
     def get_launcher_id(self, event: platform_events.MessageEvent) -> str | None:
         if not isinstance(event.source_platform_object, Update):

src/langbot/pkg/platform/sources/websocket_adapter.py

@@ -37,24 +37,16 @@ class WebSocketSession:
     id: str
     message_lists: dict[str, list[WebSocketMessage]] = {}
     """消息列表 {pipeline_uuid: [messages]}"""
-    stream_message_indexes: dict[str, dict[str, int]] = {}
-    """流式消息索引 {pipeline_uuid: {resp_message_id: message_index}}"""
 
     def __init__(self, id: str):
         self.id = id
         self.message_lists = {}
-        self.stream_message_indexes = {}
 
     def get_message_list(self, pipeline_uuid: str) -> list[WebSocketMessage]:
         if pipeline_uuid not in self.message_lists:
             self.message_lists[pipeline_uuid] = []
         return self.message_lists[pipeline_uuid]
 
-    def get_stream_message_indexes(self, pipeline_uuid: str) -> dict[str, int]:
-        if pipeline_uuid not in self.stream_message_indexes:
-            self.stream_message_indexes[pipeline_uuid] = {}
-        return self.stream_message_indexes[pipeline_uuid]
-
 
 class WebSocketAdapter(abstract_platform_adapter.AbstractMessagePlatformAdapter):
     """WebSocket适配器 - 支持双向实时通信"""
@@ -97,46 +89,20 @@ class WebSocketAdapter(abstract_platform_adapter.AbstractMessagePlatformAdapter)
         target_id: str,
         message: platform_message.MessageChain,
     ) -> dict:
-        """发送消息 - 这里用于主动推送消息到前端
+        """发送消息 - 这里用于主动推送消息到前端"""
+        message_data = {
+            'type': 'bot_message',
+            'target_type': target_type,
+            'target_id': target_id,
+            'content': str(message),
+            'message_chain': [component.__dict__ for component in message],
+            'timestamp': datetime.now().isoformat(),
+        }
 
-        对于 WebSocket 适配器，我们需要将消息广播到正确的 pipeline 连接。
-        target_id 可能是 launcher_id（如 websocket_xxx）或 pipeline_uuid。
-        我们需要尝试两种方式来确保消息能够送达。
-        """
-        # 获取当前的 pipeline_uuid
-        pipeline_uuid = self.ap.platform_mgr.websocket_proxy_bot.bot_entity.use_pipeline_uuid
-        session_type = 'group' if target_type == 'group' else 'person'
+        # 推送到所有相关连接
+        await self.outbound_message_queue.put(message_data)
 
-        # 选择会话
-        session = self.websocket_group_session if session_type == 'group' else self.websocket_person_session
-
-        # 生成唯一消息ID
-        msg_id = len(session.get_message_list(pipeline_uuid)) + 1
-
-        message_data = WebSocketMessage(
-            id=msg_id,
-            role='assistant',
-            content=str(message),
-            message_chain=[component.__dict__ for component in message],
-            timestamp=datetime.now().isoformat(),
-            is_final=True,
-        )
-
-        # 保存到历史记录
-        session.get_message_list(pipeline_uuid).append(message_data)
-
-        # 直接广播到当前pipeline的连接
-        await ws_connection_manager.broadcast_to_pipeline(
-            pipeline_uuid,
-            {
-                'type': 'response',
-                'session_type': session_type,
-                'data': message_data.model_dump(),
-            },
-            session_type=session_type,
-        )
-
-        return message_data.model_dump()
+        return message_data
 
     async def reply_message(
         self,
@@ -203,16 +169,10 @@ class WebSocketAdapter(abstract_platform_adapter.AbstractMessagePlatformAdapter)
         pipeline_uuid = self.ap.platform_mgr.websocket_proxy_bot.bot_entity.use_pipeline_uuid
         session_type = 'group' if isinstance(message_source, platform_events.GroupMessage) else 'person'
         message_list = session.get_message_list(pipeline_uuid)
-        stream_message_indexes = session.get_stream_message_indexes(pipeline_uuid)
 
-        # Streaming messages in LangBot have a stable resp_message_id during the same assistant reply.
-        # Use it as the primary key to avoid overwriting an old card from a previous reply.
-        resp_message_id = str(getattr(bot_message, 'resp_message_id', '') or '')
-        existing_index = stream_message_indexes.get(resp_message_id) if resp_message_id else None
-
-        message_is_final = is_final and bot_message.tool_calls is None
-
-        if existing_index is None or existing_index >= len(message_list):
+        # 检查是否是新的流式消息（通过bot_message对象判断）
+        # 如果列表为空，或者最后一条消息已经is_final=True，则创建新消息
+        if not message_list or message_list[-1].is_final:
             # 创建新消息
             msg_id = len(message_list) + 1
             message_data = WebSocketMessage(
@@ -221,31 +181,27 @@ class WebSocketAdapter(abstract_platform_adapter.AbstractMessagePlatformAdapter)
                 content=str(message),
                 message_chain=[component.__dict__ for component in message],
                 timestamp=datetime.now().isoformat(),
-                is_final=message_is_final,
+                is_final=is_final and bot_message.tool_calls is None,
             )
 
-            # 立即添加到历史记录（即使is_final=False），以便后续块可以更新它
-            message_list.append(message_data)
-            if resp_message_id:
-                stream_message_indexes[resp_message_id] = len(message_list) - 1
+            # 只有在is_final时才保存到历史记录
+            if is_final and bot_message.tool_calls is None:
+                message_list.append(message_data)
         else:
-            # 更新同一条流式消息
-            old_message = message_list[existing_index]
-            msg_id = old_message.id
+            # 更新最后一条消息
+            msg_id = message_list[-1].id
             message_data = WebSocketMessage(
                 id=msg_id,
                 role='assistant',
                 content=str(message),
                 message_chain=[component.__dict__ for component in message],
-                timestamp=old_message.timestamp,  # 保持原始时间戳
-                is_final=message_is_final,
+                timestamp=message_list[-1].timestamp,  # 保持原始时间戳
+                is_final=is_final and bot_message.tool_calls is None,
             )
 
-            # 更新历史记录中的对应消息
-            message_list[existing_index] = message_data
-
-        if message_is_final and resp_message_id:
-            stream_message_indexes.pop(resp_message_id, None)
+            # 如果是final，更新历史记录中的最后一条
+            if is_final and bot_message.tool_calls is None:
+                message_list[-1] = message_data
 
         # 直接广播到所有该pipeline的连接，包含session_type信息
         await ws_connection_manager.broadcast_to_pipeline(
@@ -454,10 +410,6 @@ class WebSocketAdapter(abstract_platform_adapter.AbstractMessagePlatformAdapter)
         if session_type == 'person':
             if pipeline_uuid in self.websocket_person_session.message_lists:
                 self.websocket_person_session.message_lists[pipeline_uuid] = []
-            if pipeline_uuid in self.websocket_person_session.stream_message_indexes:
-                self.websocket_person_session.stream_message_indexes[pipeline_uuid] = {}
         else:
             if pipeline_uuid in self.websocket_group_session.message_lists:
                 self.websocket_group_session.message_lists[pipeline_uuid] = []
-            if pipeline_uuid in self.websocket_group_session.stream_message_indexes:
-                self.websocket_group_session.stream_message_indexes[pipeline_uuid] = {}

src/langbot/pkg/platform/webhook_pusher.py

@@ -3,8 +3,6 @@ from __future__ import annotations
 import asyncio
 import logging
 import aiohttp
-
-from langbot.pkg.utils import httpclient
 import uuid
 from typing import TYPE_CHECKING
 
@@ -121,23 +119,23 @@ class WebhookPusher:
             dict | None: The response JSON if successful, None otherwise
         """
         try:
-            session = httpclient.get_session()
-            async with session.post(
-                url,
-                json=payload,
-                headers={'Content-Type': 'application/json'},
-                timeout=aiohttp.ClientTimeout(total=15),
-            ) as response:
-                if response.status >= 400:
-                    self.logger.warning(f'Webhook {url} returned status {response.status}')
-                    return None
-                else:
-                    self.logger.debug(f'Successfully pushed to webhook {url}')
-                    try:
-                        return await response.json()
-                    except Exception as json_error:
-                        self.logger.debug(f'Failed to parse JSON response from webhook {url}: {json_error}')
+            async with aiohttp.ClientSession() as session:
+                async with session.post(
+                    url,
+                    json=payload,
+                    headers={'Content-Type': 'application/json'},
+                    timeout=aiohttp.ClientTimeout(total=15),
+                ) as response:
+                    if response.status >= 400:
+                        self.logger.warning(f'Webhook {url} returned status {response.status}')
                         return None
+                    else:
+                        self.logger.debug(f'Successfully pushed to webhook {url}')
+                        try:
+                            return await response.json()
+                        except Exception as json_error:
+                            self.logger.debug(f'Failed to parse JSON response from webhook {url}: {json_error}')
+                            return None
         except asyncio.TimeoutError:
             self.logger.warning(f'Timeout pushing to webhook {url}')
             return None

src/langbot/pkg/plugin/connector.py

@@ -7,6 +7,7 @@ import typing
 import os
 import sys
 import httpx
+import traceback
 import sqlalchemy
 from async_lru import alru_cache
 from langbot_plugin.api.entities.builtin.pipeline.query import provider_session
@@ -101,6 +102,12 @@ class PluginRuntimeConnector:
             self.handler_task = asyncio.create_task(self.handler.run())
             _ = await self.handler.ping()
             self.ap.logger.info('Connected to plugin runtime.')
+            # Sync polymorphic component instances after connection
+            try:
+                await self.sync_polymorphic_component_instances()
+            except Exception as e:
+                traceback.print_exc()
+                self.ap.logger.error(f'Failed to sync polymorphic component instances: {e}')
             await self.handler_task
 
         task: asyncio.Task | None = None
@@ -456,18 +463,30 @@ class PluginRuntimeConnector:
 
             yield cmd_ret
 
+    # KnowledgeRetriever methods
+    async def list_knowledge_retrievers(self, bound_plugins: list[str] | None = None) -> list[dict[str, Any]]:
+        """List all available KnowledgeRetriever components."""
+        if not self.is_enable_plugin:
+            return []
+
+        retrievers_data = await self.handler.list_knowledge_retrievers(include_plugins=bound_plugins)
+        return retrievers_data
+
     async def retrieve_knowledge(
         self,
         plugin_author: str,
         plugin_name: str,
         retriever_name: str,
+        instance_id: str,
         retrieval_context: dict[str, Any],
-    ) -> dict[str, Any]:
-        """Retrieve knowledge using a KnowledgeEngine instance."""
+    ) -> list[dict[str, Any]]:
+        """Retrieve knowledge using a KnowledgeRetriever instance."""
         if not self.is_enable_plugin:
-            return {'results': []}
+            return []
 
-        return await self.handler.retrieve_knowledge(plugin_author, plugin_name, retriever_name, retrieval_context)
+        return await self.handler.retrieve_knowledge(
+            plugin_author, plugin_name, retriever_name, instance_id, retrieval_context
+        )
 
     def dispose(self):
         # No need to consider the shutdown on Windows
@@ -481,84 +500,41 @@ class PluginRuntimeConnector:
             self.heartbeat_task.cancel()
             self.heartbeat_task = None
 
-    @staticmethod
-    def _parse_plugin_id(plugin_id: str) -> tuple[str, str]:
-        """Parse a plugin ID string into (author, name).
+    async def sync_polymorphic_component_instances(self) -> dict[str, Any]:
+        """Sync polymorphic component instances with runtime.
 
-        Args:
-            plugin_id: Plugin ID in 'author/name' format.
-
-        Returns:
-            Tuple of (plugin_author, plugin_name).
-
-        Raises:
-            ValueError: If plugin_id is not in the expected 'author/name' format.
+        This collects all external knowledge bases from database and sends to runtime
+        to ensure instance integrity across restarts.
         """
-        if '/' not in plugin_id:
-            raise ValueError(
-                f"Invalid plugin_id format: '{plugin_id}'. Expected 'author/name' format (e.g. 'langbot/rag-engine')."
+        if not self.is_enable_plugin:
+            return {}
+
+        # ===== external knowledge bases =====
+
+        external_kbs = await self.ap.external_kb_service.get_external_knowledge_bases()
+
+        # Build required_instances list
+        required_instances = []
+        for kb in external_kbs:
+            required_instances.append(
+                {
+                    'instance_id': kb['uuid'],
+                    'plugin_author': kb['plugin_author'],
+                    'plugin_name': kb['plugin_name'],
+                    'component_kind': 'KnowledgeRetriever',
+                    'component_name': kb['retriever_name'],
+                    'config': kb['retriever_config'],
+                }
             )
-        return plugin_id.split('/', 1)
 
-    async def call_rag_ingest(self, plugin_id: str, context_data: dict[str, Any]) -> dict[str, Any]:
-        """Call plugin to ingest document.
+        self.ap.logger.info(f'Syncing {len(required_instances)} polymorphic component instances to runtime')
 
-        Args:
-            plugin_id: Target plugin ID (author/name).
-            context_data: IngestionContext data.
-        """
-        plugin_author, plugin_name = self._parse_plugin_id(plugin_id)
-        return await self.handler.rag_ingest_document(plugin_author, plugin_name, context_data)
+        # Send to runtime
+        sync_result = await self.handler.sync_polymorphic_component_instances(required_instances)
 
-    async def call_rag_delete_document(self, plugin_id: str, document_id: str, kb_id: str) -> bool:
-        plugin_author, plugin_name = self._parse_plugin_id(plugin_id)
-        return await self.handler.rag_delete_document(plugin_author, plugin_name, document_id, kb_id)
+        self.ap.logger.info(
+            f'Sync complete: {len(sync_result.get("success_instances", []))} succeeded, '
+            f'{len(sync_result.get("failed_instances", []))} failed'
+        )
 
-    async def get_rag_creation_schema(self, plugin_id: str) -> dict[str, Any]:
-        plugin_author, plugin_name = self._parse_plugin_id(plugin_id)
-        return await self.handler.get_rag_creation_schema(plugin_author, plugin_name)
-
-    async def get_rag_retrieval_schema(self, plugin_id: str) -> dict[str, Any]:
-        plugin_author, plugin_name = self._parse_plugin_id(plugin_id)
-        return await self.handler.get_rag_retrieval_schema(plugin_author, plugin_name)
-
-    async def rag_on_kb_create(self, plugin_id: str, kb_id: str, config: dict[str, Any]) -> dict[str, Any]:
-        """Notify plugin about KB creation."""
-        plugin_author, plugin_name = self._parse_plugin_id(plugin_id)
-        return await self.handler.rag_on_kb_create(plugin_author, plugin_name, kb_id, config)
-
-    async def rag_on_kb_delete(self, plugin_id: str, kb_id: str) -> dict[str, Any]:
-        """Notify plugin about KB deletion."""
-        plugin_author, plugin_name = self._parse_plugin_id(plugin_id)
-        return await self.handler.rag_on_kb_delete(plugin_author, plugin_name, kb_id)
-
-    async def call_rag_retrieve(self, plugin_id: str, retrieval_context: dict[str, Any]) -> dict[str, Any]:
-        """Call plugin to retrieve knowledge.
-
-        Args:
-            plugin_id: Target plugin ID (author/name).
-            retrieval_context: RetrievalContext data.
-        """
-        plugin_author, plugin_name = self._parse_plugin_id(plugin_id)
-        return await self.handler.retrieve_knowledge(plugin_author, plugin_name, '', retrieval_context)
-
-    async def list_knowledge_engines(self) -> list[dict[str, Any]]:
-        """List all available Knowledge Engines from plugins.
-
-        Returns a list of Knowledge Engines with their capabilities and configuration schemas.
-        """
-        if not self.is_enable_plugin:
-            return []
-
-        return await self.handler.list_knowledge_engines()
-
-    async def list_parsers(self) -> list[dict[str, Any]]:
-        """List all available parsers from plugins."""
-        if not self.is_enable_plugin:
-            return []
-        return await self.handler.list_parsers()
-
-    async def call_parser(self, plugin_id: str, context_data: dict[str, Any], file_bytes: bytes) -> dict[str, Any]:
-        """Call plugin to parse a document."""
-        plugin_author, plugin_name = self._parse_plugin_id(plugin_id)
-        return await self.handler.parse_document(plugin_author, plugin_name, context_data, file_bytes)
+        return sync_result

src/langbot/pkg/plugin/handler.py

@@ -26,20 +26,6 @@ from ..core import app
 from ..utils import constants
 
 
-def _make_rag_error_response(error: Exception, error_type: str, **extra_context) -> handler.ActionResponse:
-    """Create a clean error response for RAG operations.
-
-    Args:
-        error: The caught exception.
-        error_type: A category string like 'EmbeddingError', 'VectorStoreError'.
-        **extra_context: Additional context fields for the error message.
-    """
-    context_parts = [f'{k}={v}' for k, v in extra_context.items()]
-    context_str = f' [{", ".join(context_parts)}]' if context_parts else ''
-    message = f'[{error_type}/{type(error).__name__}]{context_str} {str(error)}'
-    return handler.ActionResponse.error(message=message)
-
-
 class RuntimeConnectionHandler(handler.Handler):
     """Runtime connection handler"""
 
@@ -293,7 +279,6 @@ class RuntimeConnectionHandler(handler.Handler):
             target_id = data['target_id']
             message_chain = data['message_chain']
 
-            # Use custom deserializer that properly handles Forward messages
             message_chain_obj = platform_message.MessageChain.model_validate(message_chain)
 
             bot = await self.ap.platform_mgr.get_bot_by_uuid(bot_uuid)
@@ -337,14 +322,7 @@ class RuntimeConnectionHandler(handler.Handler):
                 )
 
             messages_obj = [provider_message.Message.model_validate(message) for message in messages]
-
-            # The func field is excluded during model_dump() in plugin side (marked as exclude=True),
-            # but it's a required field for LLMTool validation. We need to provide a placeholder
-            # function when reconstructing the LLMTool objects from serialized data.
-            async def _placeholder_func(**kwargs):
-                pass
-
-            funcs_obj = [resource_tool.LLMTool.model_validate({**func, 'func': _placeholder_func}) for func in funcs]
+            funcs_obj = [resource_tool.LLMTool.model_validate(func) for func in funcs]
 
             result = await llm_model.provider.invoke_llm(
                 query=None,
@@ -460,7 +438,7 @@ class RuntimeConnectionHandler(handler.Handler):
                 },
             )
 
-        @self.action(PluginToRuntimeAction.GET_CONFIG_FILE)
+        @self.action(RuntimeToLangBotAction.GET_CONFIG_FILE)
         async def get_config_file(data: dict[str, Any]) -> handler.ActionResponse:
             """Get a config file by file key"""
             file_key = data['file_key']
@@ -479,125 +457,6 @@ class RuntimeConnectionHandler(handler.Handler):
                     message=f'Failed to load config file {file_key}: {e}',
                 )
 
-        # ================= RAG Capability Handlers =================
-
-        @self.action(PluginToRuntimeAction.INVOKE_EMBEDDING)
-        async def invoke_embedding(data: dict[str, Any]) -> handler.ActionResponse:
-            embedding_model_uuid = data['embedding_model_uuid']
-            texts = data['texts']
-
-            embedding_model = await self.ap.model_mgr.get_embedding_model_by_uuid(embedding_model_uuid)
-            if embedding_model is None:
-                return handler.ActionResponse.error(
-                    message=f'Embedding model with embedding_model_uuid {embedding_model_uuid} not found',
-                )
-
-            try:
-                vectors = await embedding_model.provider.invoke_embedding(embedding_model, texts)
-                return handler.ActionResponse.success(data={'vectors': vectors})
-            except Exception as e:
-                return _make_rag_error_response(e, 'EmbeddingError', embedding_model_uuid=embedding_model_uuid)
-
-        @self.action(PluginToRuntimeAction.VECTOR_UPSERT)
-        async def vector_upsert(data: dict[str, Any]) -> handler.ActionResponse:
-            collection_id = data['collection_id']
-            vectors = data['vectors']
-            ids = data['ids']
-            metadata = data.get('metadata')
-            documents = data.get('documents')
-            if len(vectors) != len(ids):
-                return handler.ActionResponse.error(message='vectors and ids must have same length')
-            if metadata and len(metadata) != len(vectors):
-                return handler.ActionResponse.error(message='metadata must match vectors length')
-            if documents and len(documents) != len(vectors):
-                return handler.ActionResponse.error(message='documents must match vectors length')
-            try:
-                await self.ap.rag_runtime_service.vector_upsert(
-                    collection_id,
-                    vectors,
-                    ids,
-                    metadata,
-                    documents,
-                )
-                return handler.ActionResponse.success(data={})
-            except Exception as e:
-                return _make_rag_error_response(e, 'VectorStoreError', collection_id=collection_id)
-
-        @self.action(PluginToRuntimeAction.VECTOR_SEARCH)
-        async def vector_search(data: dict[str, Any]) -> handler.ActionResponse:
-            collection_id = data['collection_id']
-            query_vector = data['query_vector']
-            top_k = data['top_k']
-            filters = data.get('filters')
-            search_type = data.get('search_type', 'vector')
-            query_text = data.get('query_text', '')
-            try:
-                results = await self.ap.rag_runtime_service.vector_search(
-                    collection_id,
-                    query_vector,
-                    top_k,
-                    filters,
-                    search_type,
-                    query_text,
-                )
-                return handler.ActionResponse.success(data={'results': results})
-            except Exception as e:
-                return _make_rag_error_response(e, 'VectorStoreError', collection_id=collection_id)
-
-        @self.action(PluginToRuntimeAction.VECTOR_DELETE)
-        async def vector_delete(data: dict[str, Any]) -> handler.ActionResponse:
-            collection_id = data['collection_id']
-            file_ids = data.get('file_ids')
-            filters = data.get('filters')
-            try:
-                count = await self.ap.rag_runtime_service.vector_delete(collection_id, file_ids, filters)
-                return handler.ActionResponse.success(data={'count': count})
-            except Exception as e:
-                return _make_rag_error_response(e, 'VectorStoreError', collection_id=collection_id)
-
-        @self.action(PluginToRuntimeAction.GET_KNOWLEDEGE_FILE_STREAM)
-        async def get_knowledge_file_stream(data: dict[str, Any]) -> handler.ActionResponse:
-            storage_path = data['storage_path']
-            try:
-                content_bytes = await self.ap.rag_runtime_service.get_file_stream(storage_path)
-                file_key = await self.send_file(content_bytes, '')
-                return handler.ActionResponse.success(data={'file_key': file_key})
-            except Exception as e:
-                return _make_rag_error_response(e, 'FileServiceError', storage_path=storage_path)
-
-        @self.action(PluginToRuntimeAction.INVOKE_PARSER)
-        async def invoke_parser(data: dict[str, Any]) -> handler.ActionResponse:
-            """Plugin requests host to invoke a parser plugin."""
-            plugin_author = data['plugin_author']
-            plugin_name = data['plugin_name']
-            storage_path = data['storage_path']
-            mime_type = data.get('mime_type', 'application/octet-stream')
-            filename = data.get('filename', '')
-            metadata = data.get('metadata', {})
-            try:
-                # Read file from storage
-                file_bytes = await self.ap.rag_runtime_service.get_file_stream(storage_path)
-                context_data = {
-                    'mime_type': mime_type,
-                    'filename': filename,
-                    'metadata': metadata,
-                }
-                result = await self.ap.plugin_connector.call_parser(
-                    f'{plugin_author}/{plugin_name}', context_data, file_bytes
-                )
-                return handler.ActionResponse.success(data=result)
-            except Exception as e:
-                return _make_rag_error_response(e, 'ParserError')
-
-        @self.action(CommonAction.PING)
-        async def ping(data: dict[str, Any]) -> handler.ActionResponse:
-            """Ping"""
-            return handler.ActionResponse.success(
-                data={
-                    'pong': 'pong',
-                },
-            )
-
     async def ping(self) -> dict[str, Any]:
         """Ping the runtime"""
         return await self.call_action(
@@ -857,13 +716,26 @@ class RuntimeConnectionHandler(handler.Handler):
         async for ret in gen:
             yield ret
 
+    # KnowledgeRetriever methods
+    async def list_knowledge_retrievers(self, include_plugins: list[str] | None = None) -> list[dict[str, Any]]:
+        """List knowledge retrievers"""
+        result = await self.call_action(
+            LangBotToRuntimeAction.LIST_KNOWLEDGE_RETRIEVERS,
+            {
+                'include_plugins': include_plugins,
+            },
+            timeout=10,
+        )
+        return result['retrievers']
+
     async def retrieve_knowledge(
         self,
         plugin_author: str,
         plugin_name: str,
         retriever_name: str,
+        instance_id: str,
         retrieval_context: dict[str, Any],
-    ) -> dict[str, Any]:
+    ) -> list[dict[str, Any]]:
         """Retrieve knowledge"""
         result = await self.call_action(
             LangBotToRuntimeAction.RETRIEVE_KNOWLEDGE,
@@ -871,10 +743,22 @@ class RuntimeConnectionHandler(handler.Handler):
                 'plugin_author': plugin_author,
                 'plugin_name': plugin_name,
                 'retriever_name': retriever_name,
+                'instance_id': instance_id,
                 'retrieval_context': retrieval_context,
             },
             timeout=30,
         )
+        return result['retrieval_results']
+
+    async def sync_polymorphic_component_instances(self, required_instances: list[dict[str, Any]]) -> dict[str, Any]:
+        """Sync polymorphic component instances with runtime"""
+        result = await self.call_action(
+            LangBotToRuntimeAction.SYNC_POLYMORPHIC_COMPONENT_INSTANCES,
+            {
+                'required_instances': required_instances,
+            },
+            timeout=30,
+        )
         return result
 
     async def get_debug_info(self) -> dict[str, Any]:
@@ -885,91 +769,3 @@ class RuntimeConnectionHandler(handler.Handler):
             timeout=10,
         )
         return result
-
-    # ================= RAG Capability Callers (LangBot -> Runtime) =================
-
-    async def rag_ingest_document(
-        self, plugin_author: str, plugin_name: str, context_data: dict[str, Any]
-    ) -> dict[str, Any]:
-        """Send INGEST_DOCUMENT action to runtime."""
-        result = await self.call_action(
-            LangBotToRuntimeAction.RAG_INGEST_DOCUMENT,
-            {'plugin_author': plugin_author, 'plugin_name': plugin_name, 'context': context_data},
-            timeout=300,  # Ingestion can be slow
-        )
-        return result
-
-    async def rag_delete_document(self, plugin_author: str, plugin_name: str, document_id: str, kb_id: str) -> bool:
-        result = await self.call_action(
-            LangBotToRuntimeAction.RAG_DELETE_DOCUMENT,
-            {'plugin_author': plugin_author, 'plugin_name': plugin_name, 'document_id': document_id, 'kb_id': kb_id},
-            timeout=30,
-        )
-        return result.get('success', False)
-
-    async def rag_on_kb_create(
-        self, plugin_author: str, plugin_name: str, kb_id: str, config: dict[str, Any]
-    ) -> dict[str, Any]:
-        """Notify plugin about KB creation."""
-        result = await self.call_action(
-            LangBotToRuntimeAction.RAG_ON_KB_CREATE,
-            {'plugin_author': plugin_author, 'plugin_name': plugin_name, 'kb_id': kb_id, 'config': config},
-            timeout=30,
-        )
-        return result
-
-    async def rag_on_kb_delete(self, plugin_author: str, plugin_name: str, kb_id: str) -> dict[str, Any]:
-        """Notify plugin about KB deletion."""
-        result = await self.call_action(
-            LangBotToRuntimeAction.RAG_ON_KB_DELETE,
-            {'plugin_author': plugin_author, 'plugin_name': plugin_name, 'kb_id': kb_id},
-            timeout=30,
-        )
-        return result
-
-    async def get_rag_creation_schema(self, plugin_author: str, plugin_name: str) -> dict[str, Any]:
-        return await self.call_action(
-            LangBotToRuntimeAction.GET_RAG_CREATION_SETTINGS_SCHEMA,
-            {'plugin_author': plugin_author, 'plugin_name': plugin_name},
-            timeout=10,
-        )
-
-    async def get_rag_retrieval_schema(self, plugin_author: str, plugin_name: str) -> dict[str, Any]:
-        return await self.call_action(
-            LangBotToRuntimeAction.GET_RAG_RETRIEVAL_SETTINGS_SCHEMA,
-            {'plugin_author': plugin_author, 'plugin_name': plugin_name},
-            timeout=10,
-        )
-
-    async def list_knowledge_engines(self) -> list[dict[str, Any]]:
-        """List all available Knowledge Engines from plugins."""
-        result = await self.call_action(LangBotToRuntimeAction.LIST_KNOWLEDGE_ENGINES, {}, timeout=60)
-        return result.get('engines', [])
-
-    # ================= Parser Capability Callers (LangBot -> Runtime) =================
-
-    async def list_parsers(self) -> list[dict[str, Any]]:
-        """List all available parsers from plugins."""
-        result = await self.call_action(LangBotToRuntimeAction.LIST_PARSERS, {}, timeout=60)
-        return result.get('parsers', [])
-
-    async def parse_document(
-        self, plugin_author: str, plugin_name: str, context_data: dict[str, Any], file_bytes: bytes
-    ) -> dict[str, Any]:
-        """Send PARSE_DOCUMENT action to runtime.
-
-        Sends file content via chunked FILE_CHUNK transfer, then invokes
-        the PARSE_DOCUMENT action with a file_key reference.
-        """
-        # Send file to runtime via chunked transfer
-        file_key = await self.send_file(file_bytes, '')
-
-        # Include file_key in context_data for the runtime to read
-        context_data['file_key'] = file_key
-
-        result = await self.call_action(
-            LangBotToRuntimeAction.PARSE_DOCUMENT,
-            {'plugin_author': plugin_author, 'plugin_name': plugin_name, 'context': context_data},
-            timeout=300,
-        )
-        return result

src/langbot/pkg/provider/runners/difysvapi.py

@@ -72,28 +72,6 @@ class DifyServiceAPIRunner(runner.RequestRunner):
                 content = f'<think>\n{thinking_content}\n</think>\n{content}'.strip()
             return content, thinking_content
 
-    def _extract_dify_text_output(self, value: typing.Any) -> str:
-        """Extract text content from Dify output payload."""
-        if value is None:
-            return ''
-        if isinstance(value, dict):
-            content = value.get('content')
-            if isinstance(content, str):
-                return content
-            return json.dumps(value, ensure_ascii=False)
-        if isinstance(value, str):
-            text = value.strip()
-            if not text:
-                return ''
-            try:
-                parsed = json.loads(text)
-            except json.JSONDecodeError:
-                return value
-            if isinstance(parsed, dict) and isinstance(parsed.get('content'), str):
-                return parsed['content']
-            return value
-        return str(value)
-
     async def _preprocess_user_message(self, query: pipeline_query.Query) -> tuple[str, list[dict]]:
         """预处理用户消息，提取纯文本，并将图片/文件上传到 Dify 服务
 
@@ -214,8 +192,7 @@ class DifyServiceAPIRunner(runner.RequestRunner):
             if mode == 'workflow':
                 if chunk['event'] == 'node_finished':
                     if chunk['data']['node_type'] == 'answer':
-                        answer = self._extract_dify_text_output(chunk['data']['outputs'].get('answer'))
-                        content, _ = self._process_thinking_content(answer)
+                        content, _ = self._process_thinking_content(chunk['data']['outputs']['answer'])
 
                         yield provider_message.Message(
                             role='assistant',
@@ -428,7 +405,6 @@ class DifyServiceAPIRunner(runner.RequestRunner):
             for f in upload_files
         ]
 
-        mode = 'basic'
         basic_mode_pending_chunk = ''
 
         inputs = {}
@@ -454,12 +430,11 @@ class DifyServiceAPIRunner(runner.RequestRunner):
         ):
             self.ap.logger.debug('dify-chat-chunk: ' + str(chunk))
 
-            if chunk['event'] == 'workflow_started':
-                mode = 'workflow'
-            elif chunk['event'] in ('node_started', 'node_finished', 'workflow_finished'):
-                # Some Dify deployments may omit workflow_started in streamed chunks.
-                mode = 'workflow'
-
+            # if chunk['event'] == 'workflow_started':
+            #     mode = 'workflow'
+            # if mode == 'workflow':
+            # elif mode == 'basic':
+            # 因为都只是返回的 message也没有工具调用什么的，暂时不分类
             if chunk['event'] == 'message':
                 message_idx += 1
                 if remove_think:
@@ -482,18 +457,8 @@ class DifyServiceAPIRunner(runner.RequestRunner):
 
             if chunk['event'] == 'message_end':
                 is_final = True
-            elif chunk['event'] == 'workflow_finished':
-                is_final = True
-                if chunk['data'].get('error'):
-                    raise errors.DifyAPIError(chunk['data']['error'])
 
-            if mode == 'workflow' and chunk['event'] == 'node_finished':
-                if chunk['data'].get('node_type') == 'answer':
-                    answer = self._extract_dify_text_output(chunk['data'].get('outputs', {}).get('answer'))
-                    if answer:
-                        basic_mode_pending_chunk = answer
-
-            if (is_final or message_idx % 8 == 0) and (basic_mode_pending_chunk != '' or is_final):
+            if is_final or message_idx % 8 == 0:
                 # content, _ = self._process_thinking_content(basic_mode_pending_chunk)
                 yield provider_message.MessageChunk(
                     role='assistant',

src/langbot/pkg/provider/runners/localagent.py

@@ -74,7 +74,15 @@ class LocalAgentRunner(runner.RequestRunner):
                     self.ap.logger.warning(f'Knowledge base {kb_uuid} not found, skipping')
                     continue
 
-                result = await kb.retrieve(user_message_text)
+                # Get top_k based on KB type
+                if kb.get_type() == 'internal':
+                    top_k = kb.knowledge_base_entity.top_k
+                elif kb.get_type() == 'external':
+                    top_k = 5  # external kb's top_k is managed by plugin config
+                else:
+                    top_k = 5  # default fallback
+
+                result = await kb.retrieve(user_message_text, top_k)
 
                 if result:
                     all_results.extend(result)
@@ -89,9 +97,9 @@ class LocalAgentRunner(runner.RequestRunner):
                         if content.type == 'text' and content.text is not None:
                             texts.append(f'[{idx}] {content.text}')
                             idx += 1
-                rag_context_text = '\n\n'.join(texts)
+                rag_context = '\n\n'.join(texts)
                 final_user_message_text = rag_combined_prompt_template.format(
-                    rag_context=rag_context_text, user_message=user_message_text
+                    rag_context=rag_context, user_message=user_message_text
                 )
 
             else:

src/langbot/pkg/provider/runners/n8nsvapi.py

@@ -5,8 +5,6 @@ import json
 import uuid
 import aiohttp
 
-from langbot.pkg.utils import httpclient
-
 from .. import runner
 from ...core import app
 import langbot_plugin.api.entities.builtin.pipeline.query as pipeline_query
@@ -219,50 +217,50 @@ class N8nServiceAPIRunner(runner.RequestRunner):
                 self.ap.logger.debug('no auth')
 
             # 调用webhook
-            session = httpclient.get_session()
-            if is_stream:
-                # 流式请求
-                async with session.post(
-                    self.webhook_url, json=payload, headers=headers, auth=auth, timeout=self.timeout
-                ) as response:
-                    if response.status != 200:
-                        error_text = await response.text()
-                        self.ap.logger.error(f'n8n webhook call failed: {response.status}, {error_text}')
-                        raise Exception(f'n8n webhook call failed: {response.status}, {error_text}')
-
-                    # 处理流式响应
-                    async for chunk in self._process_stream_response(response):
-                        yield chunk
-            else:
-                async with session.post(
-                    self.webhook_url, json=payload, headers=headers, auth=auth, timeout=self.timeout
-                ) as response:
-                    try:
-                        async for chunk in self._process_stream_response(response):
-                            output_content = chunk.content if chunk.is_final else ''
-                    except:
-                        # 非流式请求（保持原有逻辑）
+            async with aiohttp.ClientSession() as session:
+                if is_stream:
+                    # 流式请求
+                    async with session.post(
+                        self.webhook_url, json=payload, headers=headers, auth=auth, timeout=self.timeout
+                    ) as response:
                         if response.status != 200:
                             error_text = await response.text()
                             self.ap.logger.error(f'n8n webhook call failed: {response.status}, {error_text}')
                             raise Exception(f'n8n webhook call failed: {response.status}, {error_text}')
 
-                        # 解析响应
-                        response_data = await response.json()
-                        self.ap.logger.debug(f'n8n webhook response: {response_data}')
+                        # 处理流式响应
+                        async for chunk in self._process_stream_response(response):
+                            yield chunk
+                else:
+                    async with session.post(
+                        self.webhook_url, json=payload, headers=headers, auth=auth, timeout=self.timeout
+                    ) as response:
+                        try:
+                            async for chunk in self._process_stream_response(response):
+                                output_content = chunk.content if chunk.is_final else ''
+                        except:
+                            # 非流式请求（保持原有逻辑）
+                            if response.status != 200:
+                                error_text = await response.text()
+                                self.ap.logger.error(f'n8n webhook call failed: {response.status}, {error_text}')
+                                raise Exception(f'n8n webhook call failed: {response.status}, {error_text}')
 
-                        # 从响应中提取输出
-                        if self.output_key in response_data:
-                            output_content = response_data[self.output_key]
-                        else:
-                            # 如果没有指定的输出键，则使用整个响应
-                            output_content = json.dumps(response_data, ensure_ascii=False)
+                            # 解析响应
+                            response_data = await response.json()
+                            self.ap.logger.debug(f'n8n webhook response: {response_data}')
 
-                    # 返回消息
-                    yield provider_message.Message(
-                        role='assistant',
-                        content=output_content,
-                    )
+                            # 从响应中提取输出
+                            if self.output_key in response_data:
+                                output_content = response_data[self.output_key]
+                            else:
+                                # 如果没有指定的输出键，则使用整个响应
+                                output_content = json.dumps(response_data, ensure_ascii=False)
+
+                        # 返回消息
+                        yield provider_message.Message(
+                            role='assistant',
+                            content=output_content,
+                        )
         except Exception as e:
             self.ap.logger.error(f'n8n webhook call exception: {str(e)}')
             raise N8nAPIError(f'n8n webhook call exception: {str(e)}')

src/langbot/pkg/rag/knowledge/base.py

@@ -22,12 +22,12 @@ class KnowledgeBaseInterface(metaclass=abc.ABCMeta):
         pass
 
     @abc.abstractmethod
-    async def retrieve(self, query: str, settings: dict | None = None) -> list[rag_context.RetrievalResultEntry]:
+    async def retrieve(self, query: str, top_k: int) -> list[rag_context.RetrievalResultEntry]:
         """Retrieve relevant documents from the knowledge base
 
         Args:
             query: The query string
-            settings: Optional per-request retrieval settings overrides
+            top_k: Number of top results to return
 
         Returns:
             List of retrieve result entries
@@ -45,8 +45,8 @@ class KnowledgeBaseInterface(metaclass=abc.ABCMeta):
         pass
 
     @abc.abstractmethod
-    def get_knowledge_engine_plugin_id(self) -> str:
-        """Get the Knowledge Engine plugin ID"""
+    def get_type(self) -> str:
+        """Get the type of knowledge base (internal/external)"""
         pass
 
     @abc.abstractmethod

src/langbot/pkg/rag/knowledge/external.py

@@ -0,0 +1,85 @@
+"""External knowledge base implementation"""
+
+from __future__ import annotations
+
+from langbot.pkg.core import app
+from langbot.pkg.entity.persistence import rag as persistence_rag
+from langbot_plugin.api.entities.builtin.rag import context as rag_context
+from .base import KnowledgeBaseInterface
+
+
+class ExternalKnowledgeBase(KnowledgeBaseInterface):
+    """External knowledge base that queries via HTTP API or plugin retriever"""
+
+    external_kb_entity: persistence_rag.ExternalKnowledgeBase
+
+    # Plugin retriever instance ID
+    retriever_instance_id: str | None
+
+    def __init__(self, ap: app.Application, external_kb_entity: persistence_rag.ExternalKnowledgeBase):
+        super().__init__(ap)
+        self.external_kb_entity = external_kb_entity
+        self.retriever_instance_id = None
+
+    async def initialize(self):
+        """Initialize the external knowledge base"""
+        # Use KB UUID as instance ID
+        # Instance creation is now handled by the unified sync mechanism
+        # when LangBot connects to runtime
+        self.retriever_instance_id = self.external_kb_entity.uuid
+
+        self.ap.logger.info(
+            f'Initialized external KB {self.external_kb_entity.uuid}, instance will be created by sync mechanism'
+        )
+
+    async def retrieve(self, query: str, top_k: int = 5) -> list[rag_context.RetrievalResultEntry]:
+        """Retrieve documents from external knowledge base via plugin retriever"""
+        if not self.retriever_instance_id:
+            self.ap.logger.error(f'No retriever instance for KB {self.external_kb_entity.uuid}')
+            return []
+
+        try:
+            results = await self.ap.plugin_connector.retrieve_knowledge(
+                self.external_kb_entity.plugin_author,
+                self.external_kb_entity.plugin_name,
+                self.external_kb_entity.retriever_name,
+                self.retriever_instance_id,
+                {'query': query},
+            )
+
+            # Convert plugin results to RetrievalResultEntry
+            retrieval_entries = []
+            for result in results:
+                retrieval_entries.append(rag_context.RetrievalResultEntry(**result))
+
+            return retrieval_entries
+        except Exception as e:
+            self.ap.logger.error(f'Plugin retriever error: {e}')
+            import traceback
+
+            traceback.print_exc()
+            return []
+
+    def get_uuid(self) -> str:
+        """Get the UUID of the external knowledge base"""
+        return self.external_kb_entity.uuid
+
+    def get_name(self) -> str:
+        """Get the name of the external knowledge base"""
+        return self.external_kb_entity.name
+
+    def get_type(self) -> str:
+        """Get the type of knowledge base"""
+        return 'external'
+
+    async def dispose(self):
+        """Clean up resources"""
+        # Trigger sync to immediately delete the instance from plugin process
+        # This ensures instance is cleaned up without waiting for next LangBot restart
+        try:
+            await self.ap.plugin_connector.sync_polymorphic_component_instances()
+            self.ap.logger.info(
+                f'Disposed external KB {self.external_kb_entity.uuid}, triggered sync to delete instance'
+            )
+        except Exception as e:
+            self.ap.logger.error(f'Failed to sync after disposing KB: {e}')

src/langbot/pkg/rag/knowledge/kbmgr.py

@@ -1,19 +1,18 @@
 from __future__ import annotations
-import mimetypes
-import os.path
 import traceback
 import uuid
 import zipfile
 import io
-from typing import Any
+from .services import parser, chunker
 from langbot.pkg.core import app
+from langbot.pkg.rag.knowledge.services.embedder import Embedder
+from langbot.pkg.rag.knowledge.services.retriever import Retriever
 import sqlalchemy
-
-
 from langbot.pkg.entity.persistence import rag as persistence_rag
 from langbot.pkg.core import taskmgr
 from langbot_plugin.api.entities.builtin.rag import context as rag_context
 from .base import KnowledgeBaseInterface
+from .external import ExternalKnowledgeBase
 
 
 class RuntimeKnowledgeBase(KnowledgeBaseInterface):
@@ -21,16 +20,28 @@ class RuntimeKnowledgeBase(KnowledgeBaseInterface):
 
     knowledge_base_entity: persistence_rag.KnowledgeBase
 
+    parser: parser.FileParser
+
+    chunker: chunker.Chunker
+
+    embedder: Embedder
+
+    retriever: Retriever
+
     def __init__(self, ap: app.Application, knowledge_base_entity: persistence_rag.KnowledgeBase):
         super().__init__(ap)
         self.knowledge_base_entity = knowledge_base_entity
+        self.parser = parser.FileParser(ap=self.ap)
+        self.chunker = chunker.Chunker(ap=self.ap)
+        self.embedder = Embedder(ap=self.ap)
+        self.retriever = Retriever(ap=self.ap)
+        # 传递kb_id给retriever
+        self.retriever.kb_id = knowledge_base_entity.uuid
 
     async def initialize(self):
         pass
 
-    async def _store_file_task(
-        self, file: persistence_rag.File, task_context: taskmgr.TaskContext, parser_plugin_id: str | None = None
-    ):
+    async def _store_file_task(self, file: persistence_rag.File, task_context: taskmgr.TaskContext):
         try:
             # set file status to processing
             await self.ap.persistence_mgr.execute_async(
@@ -39,45 +50,30 @@ class RuntimeKnowledgeBase(KnowledgeBaseInterface):
                 .values(status='processing')
             )
 
-            task_context.set_current_action('Processing file')
+            task_context.set_current_action('Parsing file')
+            # parse file
+            text = await self.parser.parse(file.file_name, file.extension)
+            if not text:
+                raise Exception(f'No text extracted from file {file.file_name}')
 
-            # Get file size from storage
-            file_size = await self.ap.storage_mgr.storage_provider.size(file.file_name)
+            task_context.set_current_action('Chunking file')
+            # chunk file
+            chunks_texts = await self.chunker.chunk(text)
+            if not chunks_texts:
+                raise Exception(f'No chunks extracted from file {file.file_name}')
 
-            # Detect MIME type from extension
-            mime_type, _ = mimetypes.guess_type(file.file_name)
-            if mime_type is None:
-                mime_type = 'application/octet-stream'
+            task_context.set_current_action('Embedding chunks')
 
-            # If a parser plugin is specified, call it before ingestion
-            parsed_content = None
-            if parser_plugin_id:
-                task_context.set_current_action('Parsing file')
-                file_bytes = await self.ap.storage_mgr.storage_provider.load(file.file_name)
-                parse_context = {
-                    'mime_type': mime_type,
-                    'filename': file.file_name,
-                    'metadata': {},
-                }
-                parsed_content = await self.ap.plugin_connector.call_parser(parser_plugin_id, parse_context, file_bytes)
-
-            # Call plugin to ingest document
-            result = await self._ingest_document(
-                {
-                    'document_id': file.uuid,
-                    'filename': file.file_name,
-                    'extension': file.extension,
-                    'file_size': file_size,
-                    'mime_type': mime_type,
-                },
-                file.file_name,  # storage path
-                parsed_content=parsed_content,
+            embedding_model = await self.ap.model_mgr.get_embedding_model_by_uuid(
+                self.knowledge_base_entity.embedding_model_uuid
+            )
+            # embed chunks
+            await self.embedder.embed_and_store(
+                kb_id=self.knowledge_base_entity.uuid,
+                file_id=file.uuid,
+                chunks=chunks_texts,
+                embedding_model=embedding_model,
             )
-
-            # Check plugin result status
-            if result.get('status') == 'failed':
-                error_msg = result.get('error_message', 'Plugin ingestion returned failed status')
-                raise Exception(error_msg)
 
             # set file status to completed
             await self.ap.persistence_mgr.execute_async(
@@ -101,17 +97,16 @@ class RuntimeKnowledgeBase(KnowledgeBaseInterface):
             # delete file from storage
             await self.ap.storage_mgr.storage_provider.delete(file.file_name)
 
-    async def store_file(self, file_id: str, parser_plugin_id: str | None = None) -> str:
+    async def store_file(self, file_id: str) -> str:
         # pre checking
         if not await self.ap.storage_mgr.storage_provider.exists(file_id):
             raise Exception(f'File {file_id} not found')
 
         file_name = file_id
-        _, ext = os.path.splitext(file_name)
-        extension = ext.lstrip('.').lower() if ext else ''
+        extension = file_name.split('.')[-1].lower()
 
         if extension == 'zip':
-            return await self._store_zip_file(file_id, parser_plugin_id=parser_plugin_id)
+            return await self._store_zip_file(file_id)
 
         file_uuid = str(uuid.uuid4())
         kb_id = self.knowledge_base_entity.uuid
@@ -131,7 +126,7 @@ class RuntimeKnowledgeBase(KnowledgeBaseInterface):
         # run background task asynchronously
         ctx = taskmgr.TaskContext.new()
         wrapper = self.ap.task_mgr.create_user_task(
-            self._store_file_task(file_obj, task_context=ctx, parser_plugin_id=parser_plugin_id),
+            self._store_file_task(file_obj, task_context=ctx),
             kind='knowledge-operation',
             name=f'knowledge-store-file-{file_id}',
             label=f'Store file {file_id}',
@@ -139,7 +134,7 @@ class RuntimeKnowledgeBase(KnowledgeBaseInterface):
         )
         return wrapper.id
 
-    async def _store_zip_file(self, zip_file_id: str, parser_plugin_id: str | None = None) -> str:
+    async def _store_zip_file(self, zip_file_id: str) -> str:
         """Handle ZIP file by extracting each document and storing them separately."""
         self.ap.logger.info(f'Processing ZIP file: {zip_file_id}')
 
@@ -155,8 +150,7 @@ class RuntimeKnowledgeBase(KnowledgeBaseInterface):
                 if file_info.is_dir() or file_info.filename.startswith('.'):
                     continue
 
-                _, file_ext = os.path.splitext(file_info.filename)
-                file_extension = file_ext.lstrip('.').lower()
+                file_extension = file_info.filename.split('.')[-1].lower()
                 if file_extension not in supported_extensions:
                     self.ap.logger.debug(f'Skipping unsupported file in ZIP: {file_info.filename}')
                     continue
@@ -165,18 +159,18 @@ class RuntimeKnowledgeBase(KnowledgeBaseInterface):
                     file_content = zip_ref.read(file_info.filename)
 
                     base_name = file_info.filename.replace('/', '_').replace('\\', '_')
-                    file_stem, file_ext = os.path.splitext(base_name)
-                    extension = file_ext.lstrip('.')
+                    extension = base_name.split('.')[-1]
+                    file_name = base_name.split('.')[0]
 
-                    if file_stem.startswith('__MACOSX'):
+                    if file_name.startswith('__MACOSX'):
                         continue
 
-                    extracted_file_id = file_stem + '_' + str(uuid.uuid4())[:8] + '.' + extension
+                    extracted_file_id = file_name + '_' + str(uuid.uuid4())[:8] + '.' + extension
                     # save file to storage
 
                     await self.ap.storage_mgr.storage_provider.save(extracted_file_id, file_content)
 
-                    task_id = await self.store_file(extracted_file_id, parser_plugin_id=parser_plugin_id)
+                    task_id = await self.store_file(extracted_file_id)
                     stored_file_tasks.append(task_id)
 
                     self.ap.logger.info(
@@ -195,28 +189,21 @@ class RuntimeKnowledgeBase(KnowledgeBaseInterface):
 
         return stored_file_tasks[0] if stored_file_tasks else ''
 
-    async def retrieve(self, query: str, settings: dict | None = None) -> list[rag_context.RetrievalResultEntry]:
-        # Merge stored retrieval_settings with per-request overrides
-        stored = self.knowledge_base_entity.retrieval_settings or {}
-        merged = {**stored, **(settings or {})}
-        if 'top_k' not in merged:
-            merged['top_k'] = 5  # fallback default
-
-        response = await self._retrieve(query, merged)
-
-        results_data = response.get('results', [])
-        entries = []
-        for r in results_data:
-            if isinstance(r, dict):
-                entries.append(rag_context.RetrievalResultEntry(**r))
-            elif isinstance(r, rag_context.RetrievalResultEntry):
-                entries.append(r)
-        return entries
+    async def retrieve(self, query: str, top_k: int) -> list[rag_context.RetrievalResultEntry]:
+        embedding_model = await self.ap.model_mgr.get_embedding_model_by_uuid(
+            self.knowledge_base_entity.embedding_model_uuid
+        )
+        return await self.retriever.retrieve(self.knowledge_base_entity.uuid, query, embedding_model, top_k)
 
     async def delete_file(self, file_id: str):
-        await self._delete_document(file_id)
+        # delete vector
+        await self.ap.vector_db_mgr.vector_db.delete_by_file_id(self.knowledge_base_entity.uuid, file_id)
+
+        # delete chunk
+        await self.ap.persistence_mgr.execute_async(
+            sqlalchemy.delete(persistence_rag.Chunk).where(persistence_rag.Chunk.file_id == file_id)
+        )
 
-        # Also cleanup DB record
         await self.ap.persistence_mgr.execute_async(
             sqlalchemy.delete(persistence_rag.File).where(persistence_rag.File.uuid == file_id)
         )
@@ -229,289 +216,32 @@ class RuntimeKnowledgeBase(KnowledgeBaseInterface):
         """Get the name of the knowledge base"""
         return self.knowledge_base_entity.name
 
-    def get_knowledge_engine_plugin_id(self) -> str:
-        """Get the Knowledge Engine plugin ID"""
-        return self.knowledge_base_entity.knowledge_engine_plugin_id or ''
+    def get_type(self) -> str:
+        """Get the type of knowledge base"""
+        return 'internal'
 
     async def dispose(self):
-        """Dispose the knowledge base, notifying the plugin to cleanup."""
-        await self._on_kb_delete()
-
-    # ========== Plugin Communication Methods ==========
-
-    async def _on_kb_create(self) -> None:
-        """Notify plugin about KB creation."""
-        plugin_id = self.knowledge_base_entity.knowledge_engine_plugin_id
-        if not plugin_id:
-            return
-
-        try:
-            config = self.knowledge_base_entity.creation_settings or {}
-            self.ap.logger.info(
-                f'Calling RAG plugin {plugin_id}: on_knowledge_base_create(kb_id={self.knowledge_base_entity.uuid})'
-            )
-            await self.ap.plugin_connector.rag_on_kb_create(plugin_id, self.knowledge_base_entity.uuid, config)
-        except Exception as e:
-            self.ap.logger.error(f'Failed to notify plugin {plugin_id} on KB create: {e}')
-            raise
-
-    async def _on_kb_delete(self) -> None:
-        """Notify plugin about KB deletion."""
-        plugin_id = self.knowledge_base_entity.knowledge_engine_plugin_id
-        if not plugin_id:
-            return
-
-        try:
-            self.ap.logger.info(
-                f'Calling RAG plugin {plugin_id}: on_knowledge_base_delete(kb_id={self.knowledge_base_entity.uuid})'
-            )
-            await self.ap.plugin_connector.rag_on_kb_delete(plugin_id, self.knowledge_base_entity.uuid)
-        except Exception as e:
-            self.ap.logger.error(f'Failed to notify plugin {plugin_id} on KB delete: {e}')
-
-    async def _ingest_document(
-        self,
-        file_metadata: dict[str, Any],
-        storage_path: str,
-        parsed_content: dict[str, Any] | None = None,
-    ) -> dict[str, Any]:
-        """Call plugin to ingest document."""
-        kb = self.knowledge_base_entity
-        plugin_id = kb.knowledge_engine_plugin_id
-        if not plugin_id:
-            self.ap.logger.error(f'No RAG plugin ID configured for KB {kb.uuid}. Ingestion failed.')
-            raise ValueError('RAG Plugin ID required')
-
-        self.ap.logger.info(f'Calling RAG plugin {plugin_id}: ingest(doc={file_metadata.get("filename")})')
-
-        # Inject knowledge_base_id into file metadata as required by SDK schema
-        file_metadata['knowledge_base_id'] = kb.uuid
-
-        context_data = {
-            'file_object': {
-                'metadata': file_metadata,
-                'storage_path': storage_path,
-            },
-            'knowledge_base_id': kb.uuid,
-            'collection_id': kb.collection_id or kb.uuid,
-            'creation_settings': kb.creation_settings or {},
-            'parsed_content': parsed_content,
-        }
-
-        try:
-            result = await self.ap.plugin_connector.call_rag_ingest(plugin_id, context_data)
-            return result
-        except Exception as e:
-            self.ap.logger.error(f'Plugin ingestion failed: {e}')
-            raise
-
-    async def _retrieve(
-        self,
-        query: str,
-        settings: dict[str, Any],
-    ) -> dict[str, Any]:
-        """Call plugin to retrieve documents.
-
-        Raises:
-            ValueError: If no RAG plugin is configured for this KB.
-            Exception: If the plugin retrieval call fails.
-        """
-        kb = self.knowledge_base_entity
-        plugin_id = kb.knowledge_engine_plugin_id
-        if not plugin_id:
-            raise ValueError(f'No RAG plugin ID configured for KB {kb.uuid}. Retrieval failed.')
-
-        retrieval_context = {
-            'query': query,
-            'knowledge_base_id': kb.uuid,
-            'collection_id': kb.collection_id or kb.uuid,
-            'retrieval_settings': settings,
-            'creation_settings': kb.creation_settings or {},
-            'filters': settings.pop('filters', {}),
-        }
-
-        result = await self.ap.plugin_connector.call_rag_retrieve(
-            plugin_id,
-            retrieval_context,
-        )
-        return result
-
-    async def _delete_document(self, document_id: str) -> bool:
-        """Call plugin to delete document."""
-        kb = self.knowledge_base_entity
-        plugin_id = kb.knowledge_engine_plugin_id
-        if not plugin_id:
-            return False
-
-        self.ap.logger.info(f'Calling RAG plugin {plugin_id}: delete_document(doc_id={document_id})')
-
-        try:
-            return await self.ap.plugin_connector.call_rag_delete_document(plugin_id, document_id, kb.uuid)
-        except Exception as e:
-            self.ap.logger.error(f'Plugin document deletion failed: {e}')
-            return False
+        await self.ap.vector_db_mgr.vector_db.delete_collection(self.knowledge_base_entity.uuid)
 
 
 class RAGManager:
     ap: app.Application
 
-    knowledge_bases: dict[str, KnowledgeBaseInterface]
+    knowledge_bases: list[KnowledgeBaseInterface]
 
     def __init__(self, ap: app.Application):
         self.ap = ap
-        self.knowledge_bases = {}
+        self.knowledge_bases = []
 
     async def initialize(self):
         await self.load_knowledge_bases_from_db()
 
-    async def get_all_knowledge_base_details(self) -> list[dict]:
-        """Get all knowledge bases with enriched Knowledge Engine details."""
-        # 1. Get raw KBs from DB
-        result = await self.ap.persistence_mgr.execute_async(sqlalchemy.select(persistence_rag.KnowledgeBase))
-        knowledge_bases = result.all()
-
-        # 2. Get all available Knowledge Engines for enrichment
-        engine_map = {}
-        if self.ap.plugin_connector.is_enable_plugin:
-            try:
-                engines = await self.ap.plugin_connector.list_knowledge_engines()
-                engine_map = {e['plugin_id']: e for e in engines}
-            except Exception as e:
-                self.ap.logger.warning(f'Failed to list Knowledge Engines: {e}')
-
-        # 3. Serialize and enrich
-        kb_list = []
-        for kb in knowledge_bases:
-            kb_dict = self.ap.persistence_mgr.serialize_model(persistence_rag.KnowledgeBase, kb)
-            self._enrich_kb_dict(kb_dict, engine_map)
-            kb_list.append(kb_dict)
-
-        return kb_list
-
-    async def get_knowledge_base_details(self, kb_uuid: str) -> dict | None:
-        """Get specific knowledge base with enriched Knowledge Engine details."""
-        result = await self.ap.persistence_mgr.execute_async(
-            sqlalchemy.select(persistence_rag.KnowledgeBase).where(persistence_rag.KnowledgeBase.uuid == kb_uuid)
-        )
-        kb = result.first()
-        if not kb:
-            return None
-
-        kb_dict = self.ap.persistence_mgr.serialize_model(persistence_rag.KnowledgeBase, kb)
-
-        # Fetch engines
-        engine_map = {}
-        if self.ap.plugin_connector.is_enable_plugin:
-            try:
-                engines = await self.ap.plugin_connector.list_knowledge_engines()
-                engine_map = {e['plugin_id']: e for e in engines}
-            except Exception as e:
-                self.ap.logger.warning(f'Failed to list Knowledge Engines: {e}')
-
-        self._enrich_kb_dict(kb_dict, engine_map)
-        return kb_dict
-
-    @staticmethod
-    def _to_i18n_name(name) -> dict:
-        """Ensure name is always an I18nObject-compatible dict.
-
-        If *name* is already a dict (with ``en_US`` / ``zh_Hans`` keys) it is
-        returned as-is.  A plain string is wrapped into an I18nObject so the
-        frontend ``extractI18nObject`` helper never receives an unexpected type.
-        """
-        if isinstance(name, dict):
-            return name
-        return {'en_US': str(name), 'zh_Hans': str(name)}
-
-    def _enrich_kb_dict(self, kb_dict: dict, engine_map: dict) -> None:
-        """Helper to inject engine info into KB dict."""
-        plugin_id = kb_dict.get('knowledge_engine_plugin_id')
-
-        # Default fallback structure — name must be I18nObject for frontend compatibility
-        fallback_name = self._to_i18n_name(plugin_id or 'Internal (Legacy)')
-        fallback_info = {
-            'plugin_id': plugin_id,
-            'name': fallback_name,
-            'capabilities': [],
-        }
-
-        if not plugin_id:
-            kb_dict['knowledge_engine'] = fallback_info
-            return
-
-        engine_info = engine_map.get(plugin_id)
-        if engine_info:
-            kb_dict['knowledge_engine'] = {
-                'plugin_id': plugin_id,
-                'name': self._to_i18n_name(engine_info.get('name', plugin_id)),
-                'capabilities': engine_info.get('capabilities', []),
-            }
-        else:
-            kb_dict['knowledge_engine'] = fallback_info
-
-    async def create_knowledge_base(
-        self,
-        name: str,
-        knowledge_engine_plugin_id: str,
-        creation_settings: dict,
-        retrieval_settings: dict | None = None,
-        description: str = '',
-    ) -> persistence_rag.KnowledgeBase:
-        """Create a new knowledge base using a RAG plugin."""
-        # Validate that the Knowledge Engine plugin exists
-        if self.ap.plugin_connector.is_enable_plugin:
-            try:
-                engines = await self.ap.plugin_connector.list_knowledge_engines()
-                engine_ids = [e.get('plugin_id') for e in engines]
-                if knowledge_engine_plugin_id not in engine_ids:
-                    raise ValueError(f'Knowledge Engine plugin {knowledge_engine_plugin_id} not found')
-            except ValueError:
-                raise
-            except Exception as e:
-                self.ap.logger.warning(f'Failed to validate Knowledge Engine plugin existence: {e}')
-
-        kb_uuid = str(uuid.uuid4())
-        # Use UUID as collection ID by default for isolation
-        collection_id = kb_uuid
-
-        kb_data = {
-            'uuid': kb_uuid,
-            'name': name,
-            'description': description,
-            'knowledge_engine_plugin_id': knowledge_engine_plugin_id,
-            'collection_id': collection_id,
-            'creation_settings': creation_settings,
-            'retrieval_settings': retrieval_settings or {},
-        }
-
-        # Create Entity
-        kb = persistence_rag.KnowledgeBase(**kb_data)
-
-        # Persist
-        await self.ap.persistence_mgr.execute_async(sqlalchemy.insert(persistence_rag.KnowledgeBase).values(kb_data))
-
-        # Load into Runtime
-        runtime_kb = await self.load_knowledge_base(kb)
-
-        # Notify Plugin — rollback DB record and runtime entry on failure
-        try:
-            await runtime_kb._on_kb_create()
-        except Exception:
-            self.knowledge_bases.pop(kb_uuid, None)
-            await self.ap.persistence_mgr.execute_async(
-                sqlalchemy.delete(persistence_rag.KnowledgeBase).where(persistence_rag.KnowledgeBase.uuid == kb_uuid)
-            )
-            raise
-
-        self.ap.logger.info(f'Created new Knowledge Base {name} ({kb_uuid}) using plugin {knowledge_engine_plugin_id}')
-        return kb
-
     async def load_knowledge_bases_from_db(self):
         self.ap.logger.info('Loading knowledge bases from db...')
 
-        self.knowledge_bases = {}
+        self.knowledge_bases = []
 
-        # Load knowledge bases
+        # Load internal knowledge bases
         result = await self.ap.persistence_mgr.execute_async(sqlalchemy.select(persistence_rag.KnowledgeBase))
         knowledge_bases = result.all()
 
@@ -523,37 +253,86 @@ class RAGManager:
                     f'Error loading knowledge base {knowledge_base.uuid}: {e}\n{traceback.format_exc()}'
                 )
 
+        # Load external knowledge bases
+        external_result = await self.ap.persistence_mgr.execute_async(
+            sqlalchemy.select(persistence_rag.ExternalKnowledgeBase)
+        )
+        external_kbs = external_result.all()
+
+        for external_kb in external_kbs:
+            try:
+                # Don't trigger sync during batch loading - will sync once after LangBot connects to runtime
+                await self.load_external_knowledge_base(external_kb, trigger_sync=False)
+            except Exception as e:
+                self.ap.logger.error(
+                    f'Error loading external knowledge base {external_kb.uuid}: {e}\n{traceback.format_exc()}'
+                )
+
     async def load_knowledge_base(
         self,
         knowledge_base_entity: persistence_rag.KnowledgeBase | sqlalchemy.Row | dict,
     ) -> RuntimeKnowledgeBase:
         if isinstance(knowledge_base_entity, sqlalchemy.Row):
-            # Safe access to _mapping for SQLAlchemy 1.4+
             knowledge_base_entity = persistence_rag.KnowledgeBase(**knowledge_base_entity._mapping)
         elif isinstance(knowledge_base_entity, dict):
-            # Filter out non-database fields (like knowledge_engine which is computed)
-            filtered_dict = {
-                k: v for k, v in knowledge_base_entity.items() if k in persistence_rag.KnowledgeBase.ALL_DB_FIELDS
-            }
-            knowledge_base_entity = persistence_rag.KnowledgeBase(**filtered_dict)
+            knowledge_base_entity = persistence_rag.KnowledgeBase(**knowledge_base_entity)
 
         runtime_knowledge_base = RuntimeKnowledgeBase(ap=self.ap, knowledge_base_entity=knowledge_base_entity)
 
         await runtime_knowledge_base.initialize()
 
-        self.knowledge_bases[runtime_knowledge_base.get_uuid()] = runtime_knowledge_base
+        self.knowledge_bases.append(runtime_knowledge_base)
 
         return runtime_knowledge_base
 
+    async def load_external_knowledge_base(
+        self,
+        external_kb_entity: persistence_rag.ExternalKnowledgeBase | sqlalchemy.Row | dict,
+        trigger_sync: bool = True,
+    ) -> ExternalKnowledgeBase:
+        """Load external knowledge base into runtime
+
+        Args:
+            external_kb_entity: External KB entity to load
+            trigger_sync: Whether to trigger sync after loading (default True for manual creation, False for batch loading)
+        """
+        if isinstance(external_kb_entity, sqlalchemy.Row):
+            external_kb_entity = persistence_rag.ExternalKnowledgeBase(**external_kb_entity._mapping)
+        elif isinstance(external_kb_entity, dict):
+            external_kb_entity = persistence_rag.ExternalKnowledgeBase(**external_kb_entity)
+
+        external_kb = ExternalKnowledgeBase(ap=self.ap, external_kb_entity=external_kb_entity)
+
+        await external_kb.initialize()
+
+        self.knowledge_bases.append(external_kb)
+
+        # Trigger sync to create the instance immediately (for manual creation)
+        # Skip sync during batch loading from DB to avoid multiple sync calls
+        if trigger_sync:
+            try:
+                await self.ap.plugin_connector.sync_polymorphic_component_instances()
+                self.ap.logger.info(f'Triggered sync after loading external KB {external_kb_entity.uuid}')
+            except Exception as e:
+                self.ap.logger.error(f'Failed to sync after loading external KB: {e}')
+
+        return external_kb
+
     async def get_knowledge_base_by_uuid(self, kb_uuid: str) -> KnowledgeBaseInterface | None:
-        return self.knowledge_bases.get(kb_uuid)
+        for kb in self.knowledge_bases:
+            if kb.get_uuid() == kb_uuid:
+                return kb
+        return None
 
     async def remove_knowledge_base_from_runtime(self, kb_uuid: str):
-        self.knowledge_bases.pop(kb_uuid, None)
+        for kb in self.knowledge_bases:
+            if kb.get_uuid() == kb_uuid:
+                self.knowledge_bases.remove(kb)
+                return
 
     async def delete_knowledge_base(self, kb_uuid: str):
-        kb = self.knowledge_bases.pop(kb_uuid, None)
-        if kb is not None:
-            await kb.dispose()
-        else:
-            self.ap.logger.warning(f'Knowledge base {kb_uuid} not found in runtime, skipping plugin notification')
+        for kb in self.knowledge_bases:
+            if kb.get_uuid() == kb_uuid:
+                await kb.dispose()
+                self.knowledge_bases.remove(kb)
+                return

src/langbot/pkg/rag/knowledge/services/base_service.py

@@ -0,0 +1,15 @@
+# 封装异步操作
+import asyncio
+
+
+class BaseService:
+    def __init__(self):
+        pass
+
+    async def _run_sync(self, func, *args, **kwargs):
+        """
+        在单独的线程中运行同步函数。
+        如果第一个参数是 session，则在 to_thread 中获取新的 session。
+        """
+
+        return await asyncio.to_thread(func, *args, **kwargs)

src/langbot/pkg/rag/knowledge/services/chunker.py

@@ -0,0 +1,49 @@
+from __future__ import annotations
+
+import json
+from typing import List
+from langbot.pkg.rag.knowledge.services import base_service
+from langbot.pkg.core import app
+from langchain_text_splitters import RecursiveCharacterTextSplitter
+
+
+class Chunker(base_service.BaseService):
+    """
+    A class for splitting long texts into smaller, overlapping chunks.
+    """
+
+    def __init__(self, ap: app.Application, chunk_size: int = 500, chunk_overlap: int = 50):
+        self.ap = ap
+        self.chunk_size = chunk_size
+        self.chunk_overlap = chunk_overlap
+        if self.chunk_overlap >= self.chunk_size:
+            self.ap.logger.warning(
+                'Chunk overlap is greater than or equal to chunk size. This may lead to empty or malformed chunks.'
+            )
+
+    def _split_text_sync(self, text: str) -> List[str]:
+        """
+        Synchronously splits a long text into chunks with specified overlap.
+        This is a CPU-bound operation, intended to be run in a separate thread.
+        """
+        if not text:
+            return []
+
+        text_splitter = RecursiveCharacterTextSplitter(
+            chunk_size=self.chunk_size,
+            chunk_overlap=self.chunk_overlap,
+            length_function=len,
+            is_separator_regex=False,
+        )
+        return text_splitter.split_text(text)
+
+    async def chunk(self, text: str) -> List[str]:
+        """
+        Asynchronously chunks a given text into smaller pieces.
+        """
+        self.ap.logger.info(f'Chunking text (length: {len(text)})...')
+        # Run the synchronous splitting logic in a separate thread
+        chunks = await self._run_sync(self._split_text_sync, text)
+        self.ap.logger.info(f'Text chunked into {len(chunks)} pieces.')
+        self.ap.logger.debug(f'Chunks: {json.dumps(chunks, indent=4, ensure_ascii=False)}')
+        return chunks

src/langbot/pkg/rag/knowledge/services/embedder.py

@@ -0,0 +1,55 @@
+from __future__ import annotations
+import uuid
+from typing import List
+from langbot.pkg.rag.knowledge.services.base_service import BaseService
+from langbot.pkg.entity.persistence import rag as persistence_rag
+from langbot.pkg.core import app
+from langbot.pkg.provider.modelmgr.requester import RuntimeEmbeddingModel
+import sqlalchemy
+
+
+class Embedder(BaseService):
+    def __init__(self, ap: app.Application) -> None:
+        super().__init__()
+        self.ap = ap
+
+    async def embed_and_store(
+        self, kb_id: str, file_id: str, chunks: List[str], embedding_model: RuntimeEmbeddingModel
+    ) -> list[persistence_rag.Chunk]:
+        # save chunk to db
+        chunk_entities: list[persistence_rag.Chunk] = []
+        chunk_ids: list[str] = []
+
+        for chunk_text in chunks:
+            chunk_uuid = str(uuid.uuid4())
+            chunk_ids.append(chunk_uuid)
+            chunk_entity = persistence_rag.Chunk(uuid=chunk_uuid, file_id=file_id, text=chunk_text)
+            chunk_entities.append(chunk_entity)
+
+        chunk_dicts = [
+            self.ap.persistence_mgr.serialize_model(persistence_rag.Chunk, chunk) for chunk in chunk_entities
+        ]
+
+        await self.ap.persistence_mgr.execute_async(sqlalchemy.insert(persistence_rag.Chunk).values(chunk_dicts))
+
+        # get embeddings (batch size limit: 64 for OpenAI)
+        MAX_BATCH_SIZE = 64
+        embeddings_list: list[list[float]] = []
+
+        for i in range(0, len(chunks), MAX_BATCH_SIZE):
+            batch = chunks[i : i + MAX_BATCH_SIZE]
+            batch_embeddings = await embedding_model.provider.invoke_embedding(
+                model=embedding_model,
+                input_text=batch,
+                extra_args={},  # TODO: add extra args
+                knowledge_base_id=kb_id,
+                call_type='embedding',
+            )
+            embeddings_list.extend(batch_embeddings)
+
+        # save embeddings to vdb
+        await self.ap.vector_db_mgr.vector_db.add_embeddings(kb_id, chunk_ids, embeddings_list, chunk_dicts)
+
+        self.ap.logger.info(f'Successfully saved {len(chunk_entities)} embeddings to Knowledge Base.')
+
+        return chunk_entities

src/langbot/pkg/rag/knowledge/services/parser.py

@@ -0,0 +1,291 @@
+from __future__ import annotations
+
+import PyPDF2
+import io
+from docx import Document
+import chardet
+from typing import Union, Callable, Any
+import markdown
+from bs4 import BeautifulSoup
+import re
+import asyncio  # Import asyncio for async operations
+from langbot.pkg.core import app
+
+
+class FileParser:
+    """
+    A robust file parser class to extract text content from various document formats.
+    It supports TXT, PDF, DOCX, XLSX, CSV, Markdown, HTML, and EPUB files.
+    All core file reading operations are designed to be run synchronously in a thread pool
+    to avoid blocking the asyncio event loop.
+    """
+
+    def __init__(self, ap: app.Application):
+        self.ap = ap
+
+    async def _run_sync(self, sync_func: Callable, *args: Any, **kwargs: Any) -> Any:
+        """
+        Runs a synchronous function in a separate thread to prevent blocking the event loop.
+        This is a general utility method for wrapping blocking I/O operations.
+        """
+        try:
+            return await asyncio.to_thread(sync_func, *args, **kwargs)
+        except Exception as e:
+            self.ap.logger.error(f'Error running synchronous function {sync_func.__name__}: {e}')
+            raise
+
+    async def parse(self, file_name: str, extension: str) -> Union[str, None]:
+        """
+        Parses the file based on its extension and returns the extracted text content.
+        This is the main asynchronous entry point for parsing.
+
+        Args:
+            file_name (str): The name of the file to be parsed, get from ap.storage_mgr
+
+        Returns:
+            Union[str, None]: The extracted text content as a single string, or None if parsing fails.
+        """
+
+        file_extension = extension.lower()
+        parser_method = getattr(self, f'_parse_{file_extension}', None)
+
+        if parser_method is None:
+            self.ap.logger.error(f'Unsupported file format: {file_extension} for file {file_name}')
+            return None
+
+        try:
+            # Pass file_path to the specific parser methods
+            return await parser_method(file_name)
+        except Exception as e:
+            self.ap.logger.error(f'Failed to parse {file_extension} file {file_name}: {e}')
+            return None
+
+    # --- Helper for reading files with encoding detection ---
+    async def _read_file_content(self, file_name: str) -> Union[str, bytes]:
+        """
+        Reads a file with automatic encoding detection, ensuring the synchronous
+        file read operation runs in a separate thread.
+        """
+
+        # def _read_sync():
+        #     with open(file_path, 'rb') as file:
+        #         raw_data = file.read()
+        #         detected = chardet.detect(raw_data)
+        #         encoding = detected['encoding'] or 'utf-8'
+
+        #     if mode == 'r':
+        #         return raw_data.decode(encoding, errors='ignore')
+        #     return raw_data  # For binary mode
+
+        # return await self._run_sync(_read_sync)
+        file_bytes = await self.ap.storage_mgr.storage_provider.load(file_name)
+
+        detected = chardet.detect(file_bytes)
+        encoding = detected['encoding'] or 'utf-8'
+
+        return file_bytes.decode(encoding, errors='ignore')
+
+    # --- Specific Parser Methods ---
+
+    async def _parse_txt(self, file_name: str) -> str:
+        """Parses a TXT file and returns its content."""
+        self.ap.logger.info(f'Parsing TXT file: {file_name}')
+        return await self._read_file_content(file_name)
+
+    async def _parse_pdf(self, file_name: str) -> str:
+        """Parses a PDF file and returns its text content."""
+        self.ap.logger.info(f'Parsing PDF file: {file_name}')
+
+        # def _parse_pdf_sync():
+        #     text_content = []
+        #     with open(file_name, 'rb') as file:
+        #         pdf_reader = PyPDF2.PdfReader(file)
+        #         for page in pdf_reader.pages:
+        #             text = page.extract_text()
+        #             if text:
+        #                 text_content.append(text)
+        #     return '\n'.join(text_content)
+
+        # return await self._run_sync(_parse_pdf_sync)
+
+        pdf_bytes = await self.ap.storage_mgr.storage_provider.load(file_name)
+
+        def _parse_pdf_sync():
+            pdf_reader = PyPDF2.PdfReader(io.BytesIO(pdf_bytes))
+            text_content = []
+            for page in pdf_reader.pages:
+                text = page.extract_text()
+                if text:
+                    text_content.append(text)
+            return '\n'.join(text_content)
+
+        return await self._run_sync(_parse_pdf_sync)
+
+    async def _parse_docx(self, file_name: str) -> str:
+        """Parses a DOCX file and returns its text content."""
+        self.ap.logger.info(f'Parsing DOCX file: {file_name}')
+
+        docx_bytes = await self.ap.storage_mgr.storage_provider.load(file_name)
+
+        def _parse_docx_sync():
+            doc = Document(io.BytesIO(docx_bytes))
+            text_content = [paragraph.text for paragraph in doc.paragraphs if paragraph.text.strip()]
+            return '\n'.join(text_content)
+
+        return await self._run_sync(_parse_docx_sync)
+
+    async def _parse_doc(self, file_name: str) -> str:
+        """Handles .doc files, explicitly stating lack of direct support."""
+        self.ap.logger.warning(f'Direct .doc parsing is not supported for {file_name}. Please convert to .docx first.')
+        raise NotImplementedError('Direct .doc parsing not supported. Please convert to .docx first.')
+
+    # async def _parse_xlsx(self, file_name: str) -> str:
+    #     """Parses an XLSX file, returning text from all sheets."""
+    #     self.ap.logger.info(f'Parsing XLSX file: {file_name}')
+
+    #     xlsx_bytes = await self.ap.storage_mgr.storage_provider.load(file_name)
+
+    #     def _parse_xlsx_sync():
+    #         excel_file = pd.ExcelFile(io.BytesIO(xlsx_bytes))
+    #         all_sheet_content = []
+    #         for sheet_name in excel_file.sheet_names:
+    #             df = pd.read_excel(io.BytesIO(xlsx_bytes), sheet_name=sheet_name)
+    #             sheet_text = f'--- Sheet: {sheet_name} ---\n{df.to_string(index=False)}\n'
+    #             all_sheet_content.append(sheet_text)
+    #         return '\n'.join(all_sheet_content)
+
+    #     return await self._run_sync(_parse_xlsx_sync)
+
+    # async def _parse_csv(self, file_name: str) -> str:
+    #     """Parses a CSV file and returns its content as a string."""
+    #     self.ap.logger.info(f'Parsing CSV file: {file_name}')
+
+    #     csv_bytes = await self.ap.storage_mgr.storage_provider.load(file_name)
+
+    #     def _parse_csv_sync():
+    #         # pd.read_csv can often detect encoding, but explicit detection is safer
+    #         # raw_data = self._read_file_content(
+    #         #     file_name, mode='rb'
+    #         # )  # Note: this will need to be await outside this sync function
+    #         # _ = raw_data
+    #         # For simplicity, we'll let pandas handle encoding internally after a raw read.
+    #         # A more robust solution might pass encoding directly to pd.read_csv after detection.
+    #         detected = chardet.detect(io.BytesIO(csv_bytes))
+    #         encoding = detected['encoding'] or 'utf-8'
+    #         df = pd.read_csv(io.BytesIO(csv_bytes), encoding=encoding)
+    #         return df.to_string(index=False)
+
+    #     return await self._run_sync(_parse_csv_sync)
+
+    async def _parse_md(self, file_name: str) -> str:
+        """Parses a Markdown file, converting it to structured plain text."""
+        self.ap.logger.info(f'Parsing Markdown file: {file_name}')
+
+        md_bytes = await self.ap.storage_mgr.storage_provider.load(file_name)
+
+        def _parse_markdown_sync():
+            md_content = io.BytesIO(md_bytes).read().decode('utf-8', errors='ignore')
+            html_content = markdown.markdown(
+                md_content, extensions=['extra', 'codehilite', 'tables', 'toc', 'fenced_code']
+            )
+            soup = BeautifulSoup(html_content, 'html.parser')
+            text_parts = []
+            for element in soup.children:
+                if element.name in ['h1', 'h2', 'h3', 'h4', 'h5', 'h6']:
+                    level = int(element.name[1])
+                    text_parts.append('#' * level + ' ' + element.get_text().strip())
+                elif element.name == 'p':
+                    text = element.get_text().strip()
+                    if text:
+                        text_parts.append(text)
+                elif element.name in ['ul', 'ol']:
+                    for li in element.find_all('li'):
+                        text_parts.append(f'* {li.get_text().strip()}')
+                elif element.name == 'pre':
+                    code_block = element.get_text().strip()
+                    if code_block:
+                        text_parts.append(f'```\n{code_block}\n```')
+                elif element.name == 'table':
+                    table_str = self._extract_table_to_markdown_sync(element)  # Call sync helper
+                    if table_str:
+                        text_parts.append(table_str)
+                elif element.name:
+                    text = element.get_text(separator=' ', strip=True)
+                    if text:
+                        text_parts.append(text)
+            cleaned_text = re.sub(r'\n\s*\n', '\n\n', '\n'.join(text_parts))
+            return cleaned_text.strip()
+
+        return await self._run_sync(_parse_markdown_sync)
+
+    async def _parse_html(self, file_name: str) -> str:
+        """Parses an HTML file, extracting structured plain text."""
+        self.ap.logger.info(f'Parsing HTML file: {file_name}')
+
+        html_bytes = await self.ap.storage_mgr.storage_provider.load(file_name)
+
+        def _parse_html_sync():
+            html_content = io.BytesIO(html_bytes).read().decode('utf-8', errors='ignore')
+            soup = BeautifulSoup(html_content, 'html.parser')
+            for script_or_style in soup(['script', 'style']):
+                script_or_style.decompose()
+            text_parts = []
+            for element in soup.body.children if soup.body else soup.children:
+                if element.name in ['h1', 'h2', 'h3', 'h4', 'h5', 'h6']:
+                    level = int(element.name[1])
+                    text_parts.append('#' * level + ' ' + element.get_text().strip())
+                elif element.name == 'p':
+                    text = element.get_text().strip()
+                    if text:
+                        text_parts.append(text)
+                elif element.name in ['ul', 'ol']:
+                    for li in element.find_all('li'):
+                        text = li.get_text().strip()
+                        if text:
+                            text_parts.append(f'* {text}')
+                elif element.name == 'table':
+                    table_str = self._extract_table_to_markdown_sync(element)  # Call sync helper
+                    if table_str:
+                        text_parts.append(table_str)
+                elif element.name:
+                    text = element.get_text(separator=' ', strip=True)
+                    if text:
+                        text_parts.append(text)
+            cleaned_text = re.sub(r'\n\s*\n', '\n\n', '\n'.join(text_parts))
+            return cleaned_text.strip()
+
+        return await self._run_sync(_parse_html_sync)
+
+    def _add_toc_items_sync(self, toc_list: list, text_content: list, level: int):
+        """Recursively adds TOC items to text_content (synchronous helper)."""
+        indent = '  ' * level
+        for item in toc_list:
+            if isinstance(item, tuple):
+                chapter, subchapters = item
+                text_content.append(f'{indent}- {chapter.title}')
+                self._add_toc_items_sync(subchapters, text_content, level + 1)
+            else:
+                text_content.append(f'{indent}- {item.title}')
+
+    def _extract_table_to_markdown_sync(self, table_element: BeautifulSoup) -> str:
+        """Helper to convert a BeautifulSoup table element into a Markdown table string (synchronous)."""
+        headers = [th.get_text().strip() for th in table_element.find_all('th')]
+        rows = []
+        for tr in table_element.find_all('tr'):
+            cells = [td.get_text().strip() for td in tr.find_all('td')]
+            if cells:
+                rows.append(cells)
+
+        if not headers and not rows:
+            return ''
+
+        table_lines = []
+        if headers:
+            table_lines.append(' | '.join(headers))
+            table_lines.append(' | '.join(['---'] * len(headers)))
+
+        for row_cells in rows:
+            padded_cells = row_cells + [''] * (len(headers) - len(row_cells)) if headers else row_cells
+            table_lines.append(' | '.join(padded_cells))
+
+        return '\n'.join(table_lines)

src/langbot/pkg/rag/knowledge/services/retriever.py

@@ -0,0 +1,53 @@
+from __future__ import annotations
+
+from . import base_service
+from ....core import app
+from ....provider.modelmgr.requester import RuntimeEmbeddingModel
+from langbot_plugin.api.entities.builtin.rag import context as rag_context
+from langbot_plugin.api.entities.builtin.provider.message import ContentElement
+
+
+class Retriever(base_service.BaseService):
+    def __init__(self, ap: app.Application):
+        super().__init__()
+        self.ap = ap
+
+    async def retrieve(
+        self, kb_id: str, query: str, embedding_model: RuntimeEmbeddingModel, k: int = 5
+    ) -> list[rag_context.RetrievalResultEntry]:
+        self.ap.logger.info(
+            f"Retrieving for query: '{query[:10]}' with k={k} using {embedding_model.model_entity.uuid}"
+        )
+
+        query_embedding: list[float] = await embedding_model.provider.invoke_embedding(
+            model=embedding_model,
+            input_text=[query],
+            extra_args={},  # TODO: add extra args
+            knowledge_base_id=kb_id,
+            query_text=query,
+            call_type='retrieve',
+        )
+
+        vector_results = await self.ap.vector_db_mgr.vector_db.search(kb_id, query_embedding[0], k)
+
+        # 'ids' shape mirrors the Chroma-style response contract for compatibility
+        matched_vector_ids = vector_results.get('ids', [[]])[0]
+        distances = vector_results.get('distances', [[]])[0]
+        vector_metadatas = vector_results.get('metadatas', [[]])[0]
+
+        if not matched_vector_ids:
+            self.ap.logger.info('No relevant chunks found in vector database.')
+            return []
+
+        result: list[rag_context.RetrievalResultEntry] = []
+
+        for i, id in enumerate(matched_vector_ids):
+            entry = rag_context.RetrievalResultEntry(
+                id=id,
+                content=[ContentElement.from_text(vector_metadatas[i].get('text', ''))],
+                metadata=vector_metadatas[i],
+                distance=distances[i],
+            )
+            result.append(entry)
+
+        return result

src/langbot/pkg/rag/service/__init__.py

@@ -1 +0,0 @@
-from .runtime import RAGRuntimeService as RAGRuntimeService

src/langbot/pkg/rag/service/runtime.py

@@ -1,89 +0,0 @@
-from __future__ import annotations
-
-import posixpath
-from typing import Any
-from langbot.pkg.core import app
-
-
-class RAGRuntimeService:
-    """Service to handle RAG-related requests from plugins (Runtime).
-
-    This service acts as the bridge between plugin RPC requests and
-    LangBot's infrastructure (embedding models, vector databases, file storage).
-    """
-
-    def __init__(self, ap: app.Application):
-        self.ap = ap
-
-    async def vector_upsert(
-        self,
-        collection_id: str,
-        vectors: list[list[float]],
-        ids: list[str],
-        metadata: list[dict[str, Any]] | None = None,
-        documents: list[str] | None = None,
-    ) -> None:
-        """Handle VECTOR_UPSERT action."""
-        metadatas = metadata if metadata else [{} for _ in vectors]
-        await self.ap.vector_db_mgr.upsert(
-            collection_name=collection_id,
-            vectors=vectors,
-            ids=ids,
-            metadata=metadatas,
-            documents=documents,
-        )
-
-    async def vector_search(
-        self,
-        collection_id: str,
-        query_vector: list[float],
-        top_k: int,
-        filters: dict[str, Any] | None = None,
-        search_type: str = 'vector',
-        query_text: str = '',
-    ) -> list[dict[str, Any]]:
-        """Handle VECTOR_SEARCH action."""
-        return await self.ap.vector_db_mgr.search(
-            collection_name=collection_id,
-            query_vector=query_vector,
-            limit=top_k,
-            filter=filters,
-            search_type=search_type,
-            query_text=query_text,
-        )
-
-    async def vector_delete(
-        self, collection_id: str, file_ids: list[str] | None = None, filters: dict[str, Any] | None = None
-    ) -> int:
-        """Handle VECTOR_DELETE action.
-
-        Deletes vectors associated with the given file IDs from the collection.
-        Each file_id corresponds to a document whose vectors will be removed.
-
-        Args:
-            collection_id: The collection to delete from.
-            file_ids: File IDs whose associated vectors should be deleted.
-                Each file_id maps to a set of vectors stored with that file_id
-                in their metadata.
-            filters: Filter-based deletion (not yet supported, will raise).
-        """
-        count = 0
-        if file_ids:
-            await self.ap.vector_db_mgr.delete_by_file_id(collection_name=collection_id, file_ids=file_ids)
-            count = len(file_ids)
-        elif filters:
-            count = await self.ap.vector_db_mgr.delete_by_filter(collection_name=collection_id, filter=filters)
-        return count
-
-    async def get_file_stream(self, storage_path: str) -> bytes:
-        """Handle GET_KNOWLEDEGE_FILE_STREAM action.
-
-        Uses the storage manager abstraction to load file content,
-        regardless of the underlying storage provider.
-        """
-        # Validate storage_path to prevent path traversal
-        normalized = posixpath.normpath(storage_path)
-        if normalized.startswith('/') or '..' in normalized.split('/'):
-            raise ValueError('Invalid storage path')
-        content_bytes = await self.ap.storage_mgr.storage_provider.load(normalized)
-        return content_bytes if content_bytes else b''

src/langbot/pkg/storage/mgr.py

@@ -3,7 +3,7 @@ from __future__ import annotations
 
 from ..core import app
 from . import provider
-from .providers import localstorage
+from .providers import localstorage, s3storage
 
 
 class StorageMgr:
@@ -21,8 +21,6 @@ class StorageMgr:
         storage_type = storage_config.get('use', 'local')
 
         if storage_type == 's3':
-            from .providers import s3storage
-
             self.storage_provider = s3storage.S3StorageProvider(self.ap)
             self.ap.logger.info('Initialized S3 storage backend.')
         else:

src/langbot/pkg/storage/provider.py

@@ -43,13 +43,6 @@ class StorageProvider(abc.ABC):
     ):
         pass
 
-    @abc.abstractmethod
-    async def size(
-        self,
-        key: str,
-    ) -> int:
-        pass
-
     @abc.abstractmethod
     async def delete_dir_recursive(
         self,

src/langbot/pkg/storage/providers/localstorage.py

@@ -47,12 +47,6 @@ class LocalStorageProvider(provider.StorageProvider):
     ):
         os.remove(os.path.join(LOCAL_STORAGE_PATH, f'{key}'))
 
-    async def size(
-        self,
-        key: str,
-    ) -> int:
-        return os.path.getsize(os.path.join(LOCAL_STORAGE_PATH, f'{key}'))
-
     async def delete_dir_recursive(
         self,
         dir_path: str,

src/langbot/pkg/storage/providers/s3storage.py

@@ -117,21 +117,6 @@ class S3StorageProvider(provider.StorageProvider):
             self.ap.logger.error(f'Failed to delete from S3: {e}')
             raise
 
-    async def size(
-        self,
-        key: str,
-    ) -> int:
-        """Get object size from S3 without downloading it"""
-        try:
-            response = self.s3_client.head_object(
-                Bucket=self.bucket_name,
-                Key=key,
-            )
-            return response['ContentLength']
-        except Exception as e:
-            self.ap.logger.error(f'Failed to get size from S3: {e}')
-            raise
-
     async def delete_dir_recursive(
         self,
         dir_path: str,

src/langbot/pkg/survey/__init__.py

@@ -1 +0,0 @@
-"""Survey module for in-product surveys triggered by events."""

src/langbot/pkg/survey/manager.py

@@ -1,148 +0,0 @@
-"""Survey manager: tracks events, communicates with Space to fetch/submit surveys."""
-
-from __future__ import annotations
-
-import asyncio
-import json
-import typing
-import httpx
-import sqlalchemy
-
-from ..core import app as core_app
-from ..entity.persistence.metadata import Metadata
-from ..utils import constants
-
-SURVEY_TRIGGERED_KEY = 'survey_triggered_events'
-
-
-class SurveyManager:
-    """Manages survey lifecycle: event tracking, pending survey fetch, submission."""
-
-    def __init__(self, ap: core_app.Application):
-        self.ap = ap
-        self._triggered_events: set[str] = set()
-        self._pending_survey: typing.Optional[dict] = None
-        self._space_url: str = ''
-
-    async def initialize(self):
-        space_config = self.ap.instance_config.data.get('space', {})
-        self._space_url = space_config.get('url', '').rstrip('/')
-        await self._load_triggered_events()
-
-    async def _load_triggered_events(self):
-        """Load previously triggered events from metadata table."""
-        try:
-            result = await self.ap.persistence_mgr.execute_async(
-                sqlalchemy.select(Metadata).where(Metadata.key == SURVEY_TRIGGERED_KEY)
-            )
-            row = result.first()
-            if row:
-                self._triggered_events = set(json.loads(row[0].value))
-        except Exception:
-            self._triggered_events = set()
-
-    async def _save_triggered_events(self):
-        """Persist triggered events to metadata table."""
-        try:
-            value = json.dumps(list(self._triggered_events))
-            result = await self.ap.persistence_mgr.execute_async(
-                sqlalchemy.select(Metadata).where(Metadata.key == SURVEY_TRIGGERED_KEY)
-            )
-            if result.first():
-                await self.ap.persistence_mgr.execute_async(
-                    sqlalchemy.update(Metadata).where(Metadata.key == SURVEY_TRIGGERED_KEY).values(value=value)
-                )
-            else:
-                await self.ap.persistence_mgr.execute_async(
-                    sqlalchemy.insert(Metadata).values(key=SURVEY_TRIGGERED_KEY, value=value)
-                )
-        except Exception as e:
-            self.ap.logger.debug(f'Failed to save survey triggered events: {e}')
-
-    def _is_space_configured(self) -> bool:
-        space_config = self.ap.instance_config.data.get('space', {})
-        if space_config.get('disable_telemetry', False):
-            return False
-        return bool(self._space_url)
-
-    async def trigger_event(self, event: str):
-        """Called when an event occurs. Checks Space for a pending survey."""
-        if event in self._triggered_events:
-            return
-        if not self._is_space_configured():
-            return
-
-        self._triggered_events.add(event)
-        await self._save_triggered_events()
-
-        # Check for pending survey asynchronously
-        asyncio.create_task(self._fetch_pending_survey(event))
-
-    async def _fetch_pending_survey(self, event: str):
-        """Fetch pending survey from Space for this event."""
-        try:
-            url = f'{self._space_url}/api/v1/survey/pending'
-            payload = {
-                'instance_id': constants.instance_id,
-                'event': event,
-            }
-            async with httpx.AsyncClient(timeout=httpx.Timeout(10)) as client:
-                resp = await client.post(url, json=payload)
-                if resp.status_code == 200:
-                    data = resp.json()
-                    if data.get('code') == 0 and data.get('data', {}).get('survey'):
-                        self._pending_survey = data['data']['survey']
-                        self.ap.logger.info(f'Survey pending: {self._pending_survey.get("survey_id")}')
-        except Exception as e:
-            self.ap.logger.debug(f'Failed to fetch pending survey: {e}')
-
-    def get_pending_survey(self) -> typing.Optional[dict]:
-        """Return the current pending survey (if any) for the frontend to display."""
-        return self._pending_survey
-
-    def clear_pending_survey(self):
-        """Clear the pending survey (after user responds or dismisses)."""
-        self._pending_survey = None
-
-    async def submit_response(self, survey_id: str, answers: dict, completed: bool = True) -> bool:
-        """Submit a survey response to Space."""
-        if not self._is_space_configured():
-            return False
-        try:
-            url = f'{self._space_url}/api/v1/survey/respond'
-            payload = {
-                'survey_id': survey_id,
-                'instance_id': constants.instance_id,
-                'answers': answers,
-                'metadata': {
-                    'version': constants.semantic_version,
-                },
-                'completed': completed,
-            }
-            async with httpx.AsyncClient(timeout=httpx.Timeout(10)) as client:
-                resp = await client.post(url, json=payload)
-                if resp.status_code == 200:
-                    self.clear_pending_survey()
-                    return True
-        except Exception as e:
-            self.ap.logger.warning(f'Failed to submit survey response: {e}')
-        return False
-
-    async def dismiss_survey(self, survey_id: str) -> bool:
-        """Dismiss a survey."""
-        if not self._is_space_configured():
-            return False
-        try:
-            url = f'{self._space_url}/api/v1/survey/dismiss'
-            payload = {
-                'survey_id': survey_id,
-                'instance_id': constants.instance_id,
-            }
-            async with httpx.AsyncClient(timeout=httpx.Timeout(10)) as client:
-                resp = await client.post(url, json=payload)
-                if resp.status_code == 200:
-                    self.clear_pending_survey()
-                    return True
-        except Exception as e:
-            self.ap.logger.warning(f'Failed to dismiss survey: {e}')
-        return False

src/langbot/pkg/telemetry/telemetry.py

@@ -60,7 +60,7 @@ class TelemetryManager:
                     except Exception:
                         sanitized['query_id'] = str(sanitized.get('query_id', ''))
 
-                for sfield in ('adapter', 'runner', 'runner_category', 'model_name', 'version', 'error', 'timestamp'):
+                for sfield in ('adapter', 'runner', 'model_name', 'version', 'error', 'timestamp'):
                     v = sanitized.get(sfield)
                     sanitized[sfield] = '' if v is None else str(v)
 

src/langbot/pkg/utils/constants.py

@@ -2,7 +2,7 @@ import langbot
 
 semantic_version = f'v{langbot.__version__}'
 
-required_database_version = 20
+required_database_version = 18
 """Tag the version of the database schema, used to check if the database needs to be migrated"""
 
 debug_mode = False

src/langbot/pkg/utils/httpclient.py

@@ -1,43 +0,0 @@
-"""Shared aiohttp.ClientSession to avoid repeated SSL context creation.
-
-Each call to `aiohttp.ClientSession()` creates a new `TCPConnector` which in turn
-creates a new `ssl.SSLContext` and loads all system root certificates. This is
-extremely expensive in both CPU and memory (~270MB total allocations observed via
-memray profiling).
-
-This module provides a shared session pool so that all HTTP client code in LangBot
-reuses the same underlying SSL context and connection pool.
-"""
-
-from __future__ import annotations
-
-import aiohttp
-
-_sessions: dict[str, aiohttp.ClientSession] = {}
-
-
-def get_session(*, trust_env: bool = False) -> aiohttp.ClientSession:
-    """Get or create a shared aiohttp.ClientSession.
-
-    Args:
-        trust_env: Whether to trust environment variables for proxy settings.
-
-    Returns:
-        A shared aiohttp.ClientSession instance.
-    """
-    key = f'trust_env={trust_env}'
-
-    session = _sessions.get(key)
-    if session is None or session.closed:
-        session = aiohttp.ClientSession(trust_env=trust_env)
-        _sessions[key] = session
-
-    return session
-
-
-async def close_all():
-    """Close all shared sessions. Call on application shutdown."""
-    for session in _sessions.values():
-        if not session.closed:
-            await session.close()
-    _sessions.clear()

src/langbot/pkg/utils/image.py

@@ -5,8 +5,6 @@ from urllib.parse import urlparse, parse_qs
 import ssl
 
 import aiohttp
-
-from langbot.pkg.utils import httpclient
 import PIL.Image
 import httpx
 
@@ -49,54 +47,53 @@ async def get_gewechat_image_base64(
     )
 
     try:
-        session = httpclient.get_session()
-        # 获取图片下载链接
-        try:
-            async with session.post(
-                f'{gewechat_url}/v2/api/message/downloadImage',
-                headers=headers,
-                json={'appId': app_id, 'type': image_type, 'xml': xml_content},
-                timeout=timeout,
-            ) as response:
-                if response.status != 200:
-                    # print(response)
-                    raise Exception(f'获取gewechat图片下载失败: {await response.text()}')
+        async with aiohttp.ClientSession(timeout=timeout) as session:
+            # 获取图片下载链接
+            try:
+                async with session.post(
+                    f'{gewechat_url}/v2/api/message/downloadImage',
+                    headers=headers,
+                    json={'appId': app_id, 'type': image_type, 'xml': xml_content},
+                ) as response:
+                    if response.status != 200:
+                        # print(response)
+                        raise Exception(f'获取gewechat图片下载失败: {await response.text()}')
 
-                resp_data = await response.json()
-                if resp_data.get('ret') != 200:
-                    raise Exception(f'获取gewechat图片下载链接失败: {resp_data}')
+                    resp_data = await response.json()
+                    if resp_data.get('ret') != 200:
+                        raise Exception(f'获取gewechat图片下载链接失败: {resp_data}')
 
-                file_url = resp_data['data']['fileUrl']
-        except asyncio.TimeoutError:
-            raise Exception('获取图片下载链接超时')
-        except aiohttp.ClientError as e:
-            raise Exception(f'获取图片下载链接网络错误: {str(e)}')
+                    file_url = resp_data['data']['fileUrl']
+            except asyncio.TimeoutError:
+                raise Exception('获取图片下载链接超时')
+            except aiohttp.ClientError as e:
+                raise Exception(f'获取图片下载链接网络错误: {str(e)}')
 
-        # 解析原始URL并替换端口
-        base_url = gewechat_file_url
-        download_url = f'{base_url}/download/{file_url}'
+            # 解析原始URL并替换端口
+            base_url = gewechat_file_url
+            download_url = f'{base_url}/download/{file_url}'
 
-        # 下载图片
-        try:
-            async with session.get(download_url) as img_response:
-                if img_response.status != 200:
-                    raise Exception(f'下载图片失败: {await img_response.text()}, URL: {download_url}')
+            # 下载图片
+            try:
+                async with session.get(download_url) as img_response:
+                    if img_response.status != 200:
+                        raise Exception(f'下载图片失败: {await img_response.text()}, URL: {download_url}')
 
-                image_data = await img_response.read()
+                    image_data = await img_response.read()
 
-                content_type = img_response.headers.get('Content-Type', '')
-                if content_type:
-                    image_format = content_type.split('/')[-1]
-                else:
-                    image_format = file_url.split('.')[-1]
+                    content_type = img_response.headers.get('Content-Type', '')
+                    if content_type:
+                        image_format = content_type.split('/')[-1]
+                    else:
+                        image_format = file_url.split('.')[-1]
 
-                base64_str = base64.b64encode(image_data).decode('utf-8')
+                    base64_str = base64.b64encode(image_data).decode('utf-8')
 
-                return base64_str, image_format
-        except asyncio.TimeoutError:
-            raise Exception(f'下载图片超时, URL: {download_url}')
-        except aiohttp.ClientError as e:
-            raise Exception(f'下载图片网络错误: {str(e)}, URL: {download_url}')
+                    return base64_str, image_format
+            except asyncio.TimeoutError:
+                raise Exception(f'下载图片超时, URL: {download_url}')
+            except aiohttp.ClientError as e:
+                raise Exception(f'下载图片网络错误: {str(e)}, URL: {download_url}')
     except Exception as e:
         raise Exception(f'获取图片失败: {str(e)}') from e
 
@@ -107,24 +104,24 @@ async def get_wecom_image_base64(pic_url: str) -> tuple[str, str]:
     :param pic_url: 企业微信图片URL
     :return: (base64_str, image_format)
     """
-    session = httpclient.get_session()
-    async with session.get(pic_url) as response:
-        if response.status != 200:
-            raise Exception(f'Failed to download image: {response.status}')
+    async with aiohttp.ClientSession() as session:
+        async with session.get(pic_url) as response:
+            if response.status != 200:
+                raise Exception(f'Failed to download image: {response.status}')
 
-        # 读取图片数据
-        image_data = await response.read()
+            # 读取图片数据
+            image_data = await response.read()
 
-        # 获取图片格式
-        content_type = response.headers.get('Content-Type', '')
-        image_format = content_type.split('/')[-1]  # 例如 'image/jpeg' -> 'jpeg'
+            # 获取图片格式
+            content_type = response.headers.get('Content-Type', '')
+            image_format = content_type.split('/')[-1]  # 例如 'image/jpeg' -> 'jpeg'
 
-        # 转换为 base64
-        import base64
+            # 转换为 base64
+            import base64
 
-        image_base64 = base64.b64encode(image_data).decode('utf-8')
+            image_base64 = base64.b64encode(image_data).decode('utf-8')
 
-        return image_base64, image_format
+            return image_base64, image_format
 
 
 async def get_qq_official_image_base64(pic_url: str, content_type: str) -> tuple[str, str]:
@@ -155,19 +152,21 @@ async def get_qq_image_bytes(image_url: str, query: dict = {}) -> tuple[bytes, s
     ssl_context = ssl.create_default_context()
     ssl_context.check_hostname = False
     ssl_context.verify_mode = ssl.CERT_NONE
-    session = httpclient.get_session()
-    async with session.get(image_url, params=query, ssl=ssl_context, timeout=aiohttp.ClientTimeout(total=30.0)) as resp:
-        resp.raise_for_status()
-        file_bytes = await resp.read()
-        content_type = resp.headers.get('Content-Type')
-        if not content_type:
-            image_format = 'jpeg'
-        elif not content_type.startswith('image/'):
-            pil_img = PIL.Image.open(io.BytesIO(file_bytes))
-            image_format = pil_img.format.lower()
-        else:
-            image_format = content_type.split('/')[-1]
-        return file_bytes, image_format
+    async with aiohttp.ClientSession(trust_env=False) as session:
+        async with session.get(
+            image_url, params=query, ssl=ssl_context, timeout=aiohttp.ClientTimeout(total=30.0)
+        ) as resp:
+            resp.raise_for_status()
+            file_bytes = await resp.read()
+            content_type = resp.headers.get('Content-Type')
+            if not content_type:
+                image_format = 'jpeg'
+            elif not content_type.startswith('image/'):
+                pil_img = PIL.Image.open(io.BytesIO(file_bytes))
+                image_format = pil_img.format.lower()
+            else:
+                image_format = content_type.split('/')[-1]
+            return file_bytes, image_format
 
 
 async def qq_image_url_to_base64(image_url: str) -> typing.Tuple[str, str]:
@@ -205,11 +204,11 @@ async def extract_b64_and_format(image_base64_data: str) -> typing.Tuple[str, st
 async def get_slack_image_to_base64(pic_url: str, bot_token: str):
     headers = {'Authorization': f'Bearer {bot_token}'}
     try:
-        session = httpclient.get_session()
-        async with session.get(pic_url, headers=headers) as resp:
-            mime_type = resp.headers.get('Content-Type', 'application/octet-stream')
-            file_bytes = await resp.read()
-            base64_str = base64.b64encode(file_bytes).decode('utf-8')
-        return f'data:{mime_type};base64,{base64_str}'
+        async with aiohttp.ClientSession() as session:
+            async with session.get(pic_url, headers=headers) as resp:
+                mime_type = resp.headers.get('Content-Type', 'application/octet-stream')
+                file_bytes = await resp.read()
+                base64_str = base64.b64encode(file_bytes).decode('utf-8')
+            return f'data:{mime_type};base64,{base64_str}'
     except Exception as e:
         raise (e)

src/langbot/pkg/utils/runner.py

@@ -1,105 +0,0 @@
-from __future__ import annotations
-
-from urllib.parse import urlparse
-
-
-class RunnerCategory:
-    LOCAL = 'local'
-    CLOUD = 'cloud'
-    UNKNOWN = 'unknown'
-
-
-CLOUD_DOMAINS = [
-    '.n8n.cloud',
-    '.n8n.io',
-    'api.dify.ai',
-    'cloud.dify.ai',
-    '.coze.com',
-    '.coze.cn',
-    'cloud.langflow.ai',
-    '.langflow.org',
-]
-
-LOCAL_PATTERNS = [
-    'localhost',
-    '127.0.0.1',
-    '0.0.0.0',
-    '192.168.',
-    '10.',
-    '172.16.',
-    '172.17.',
-    '172.18.',
-    '172.19.',
-    '172.20.',
-    '172.21.',
-    '172.22.',
-    '172.23.',
-    '172.24.',
-    '172.25.',
-    '172.26.',
-    '172.27.',
-    '172.28.',
-    '172.29.',
-    '172.30.',
-    '172.31.',
-]
-
-
-def get_runner_category(runner_name: str, runner_url: str) -> str:
-    if not runner_url:
-        return RunnerCategory.UNKNOWN
-
-    try:
-        parsed_url = urlparse(runner_url)
-        host = parsed_url.hostname.lower() if parsed_url.hostname else ''
-    except Exception:
-        return RunnerCategory.UNKNOWN
-
-    for pattern in LOCAL_PATTERNS:
-        if host.startswith(pattern):
-            return RunnerCategory.LOCAL
-
-    for domain in CLOUD_DOMAINS:
-        if host.endswith(domain):
-            return RunnerCategory.CLOUD
-
-    return RunnerCategory.CLOUD
-
-
-def get_runner_info(runner_name: str, runner_url: str) -> dict:
-    return {
-        'name': runner_name,
-        'url': runner_url,
-        'category': get_runner_category(runner_name, runner_url),
-    }
-
-
-def is_cloud_runner(runner_name: str, runner_url: str) -> bool:
-    return get_runner_category(runner_name, runner_url) == RunnerCategory.CLOUD
-
-
-def is_local_runner(runner_name: str, runner_url: str) -> bool:
-    return get_runner_category(runner_name, runner_url) == RunnerCategory.LOCAL
-
-
-def extract_runner_url(runner_name: str, runner, pipeline_config: dict | None) -> str | None:
-    if not runner or not hasattr(runner, 'pipeline_config'):
-        return None
-
-    ai_config = pipeline_config.get('ai', {}) if pipeline_config else {}
-
-    if runner_name == 'dify-service-api':
-        return ai_config.get('dify-service-api', {}).get('base-url')
-    elif runner_name == 'n8n-service-api':
-        return ai_config.get('n8n-service-api', {}).get('webhook-url')
-    elif runner_name == 'coze-api':
-        return ai_config.get('coze-api', {}).get('api-base')
-    elif runner_name == 'langflow-api':
-        return ai_config.get('langflow-api', {}).get('base-url')
-
-    return None
-
-
-def get_runner_category_from_runner(runner_name: str, runner, pipeline_config: dict | None) -> str:
-    runner_url = extract_runner_url(runner_name, runner, pipeline_config)
-    return get_runner_category(runner_name, runner_url)

src/langbot/pkg/vector/filter_utils.py

@@ -1,69 +0,0 @@
-"""Shared utilities for metadata filter handling across VDB backends.
-
-Canonical filter format (Chroma-style ``where`` syntax):
-
-    {"file_id": "abc"}                      # implicit $eq
-    {"file_id": {"$eq": "abc"}}             # explicit $eq
-    {"created_at": {"$gte": 1700000000}}    # comparison
-    {"file_type": {"$in": ["pdf", "docx"]}} # in-list
-
-Multiple top-level keys are AND-ed.  Supported operators:
-``$eq``, ``$ne``, ``$gt``, ``$gte``, ``$lt``, ``$lte``, ``$in``, ``$nin``.
-"""
-
-from __future__ import annotations
-
-import logging
-from typing import Any
-
-SUPPORTED_OPS = frozenset({'$eq', '$ne', '$gt', '$gte', '$lt', '$lte', '$in', '$nin'})
-
-logger = logging.getLogger(__name__)
-
-
-def normalize_filter(
-    raw: dict[str, Any] | None,
-) -> list[tuple[str, str, Any]]:
-    """Parse a canonical filter dict into ``[(field, op, value)]`` triples.
-
-    Returns an empty list when *raw* is ``None`` or empty.
-
-    Raises ``ValueError`` on unsupported operators or malformed entries.
-    """
-    if not raw:
-        return []
-
-    triples: list[tuple[str, str, Any]] = []
-    for field, condition in raw.items():
-        if isinstance(condition, dict):
-            for op, value in condition.items():
-                if op not in SUPPORTED_OPS:
-                    raise ValueError(f'Unsupported filter operator: {op}')
-                triples.append((field, op, value))
-        else:
-            # Bare value -> implicit $eq
-            triples.append((field, '$eq', condition))
-    return triples
-
-
-def strip_unsupported_fields(
-    triples: list[tuple[str, str, Any]],
-    supported_fields: set[str],
-) -> list[tuple[str, str, Any]]:
-    """Return only triples whose field is in *supported_fields*.
-
-    Dropped fields are logged at WARNING level so the caller knows they were
-    silently ignored (useful for Milvus / pgvector which only store a fixed
-    schema).
-    """
-    kept: list[tuple[str, str, Any]] = []
-    for field, op, value in triples:
-        if field in supported_fields:
-            kept.append((field, op, value))
-        else:
-            logger.warning(
-                'Filter field %r is not supported by this backend and will be ignored (supported: %s)',
-                field,
-                ', '.join(sorted(supported_fields)),
-            )
-    return kept

src/langbot/pkg/vector/mgr.py

@@ -1,7 +1,7 @@
 from __future__ import annotations
 
 from ..core import app
-from .vdb import VectorDatabase, SearchType
+from .vdb import VectorDatabase
 from .vdbs.chroma import ChromaVectorDatabase
 from .vdbs.qdrant import QdrantVectorDatabase
 from .vdbs.seekdb import SeekDBVectorDatabase
@@ -65,95 +65,3 @@ class VectorDBManager:
         else:
             self.vector_db = ChromaVectorDatabase(self.ap)
             self.ap.logger.warning('No vector database backend configured, defaulting to Chroma.')
-
-    def get_supported_search_types(self) -> list[str]:
-        """Return the search types supported by the current VDB backend."""
-        if self.vector_db is None:
-            return [SearchType.VECTOR.value]
-        return [st.value for st in self.vector_db.supported_search_types()]
-
-    async def upsert(
-        self,
-        collection_name: str,
-        vectors: list[list[float]],
-        ids: list[str],
-        metadata: list[dict] | None = None,
-        documents: list[str] | None = None,
-    ):
-        """Proxy: Upsert vectors"""
-        await self.vector_db.add_embeddings(
-            collection=collection_name,
-            ids=ids,
-            embeddings_list=vectors,
-            metadatas=metadata or [{} for _ in vectors],
-            documents=documents,
-        )
-
-    async def search(
-        self,
-        collection_name: str,
-        query_vector: list[float],
-        limit: int,
-        filter: dict | None = None,
-        search_type: str = 'vector',
-        query_text: str = '',
-    ) -> list[dict]:
-        """Proxy: Search vectors.
-
-        Returns a list of dicts with keys: 'id', 'score', 'metadata'.
-        The underlying VectorDatabase.search returns Chroma-style format:
-        { 'ids': [['id1']], 'distances': [[0.1]], 'metadatas': [[{}]] }
-        """
-        results = await self.vector_db.search(
-            collection=collection_name,
-            query_embedding=query_vector,
-            k=limit,
-            search_type=search_type,
-            query_text=query_text,
-            filter=filter,
-        )
-
-        if not results or 'ids' not in results or not results['ids']:
-            return []
-
-        # Flatten nested lists (Chroma returns batch-style: list of lists)
-        raw_ids = results['ids']
-        raw_dists = results.get('distances', [])
-        raw_metas = results.get('metadatas', [])
-
-        r_ids = raw_ids[0] if raw_ids and isinstance(raw_ids[0], list) else raw_ids
-        r_dists = raw_dists[0] if raw_dists and isinstance(raw_dists[0], list) else raw_dists
-        r_metas = raw_metas[0] if raw_metas and isinstance(raw_metas[0], list) else raw_metas
-
-        parsed_results = []
-        for i, id_val in enumerate(r_ids):
-            parsed_results.append(
-                {
-                    'id': id_val,
-                    'score': r_dists[i] if r_dists and i < len(r_dists) else 0.0,
-                    'metadata': r_metas[i] if r_metas and i < len(r_metas) else {},
-                }
-            )
-
-        return parsed_results
-
-    async def delete_by_file_id(self, collection_name: str, file_ids: list[str]):
-        """Proxy: Delete vectors by file_id (metadata-level identifier).
-
-        This delegates to VectorDatabase.delete_by_file_id which removes
-        all vectors associated with the given file IDs.
-        """
-        for file_id in file_ids:
-            await self.vector_db.delete_by_file_id(collection_name, file_id)
-
-    async def delete_collection(self, collection_name: str):
-        """Proxy: Delete an entire collection."""
-        await self.vector_db.delete_collection(collection_name)
-
-    async def delete_by_filter(self, collection_name: str, filter: dict) -> int:
-        """Proxy: Delete vectors by metadata filter.
-
-        Returns:
-            Number of deleted vectors (best-effort; some backends return 0).
-        """
-        return await self.vector_db.delete_by_filter(collection_name, filter)

src/langbot/pkg/vector/vdb.py

@@ -1,28 +1,10 @@
 from __future__ import annotations
 import abc
-import enum
 from typing import Any, Dict
 import numpy as np
 
 
-class SearchType(str, enum.Enum):
-    """Supported search types for vector databases."""
-
-    VECTOR = 'vector'
-    FULL_TEXT = 'full_text'
-    HYBRID = 'hybrid'
-
-
 class VectorDatabase(abc.ABC):
-    @classmethod
-    def supported_search_types(cls) -> list[SearchType]:
-        """Return the search types supported by this VDB backend.
-
-        Default: vector search only. Override in subclasses that support
-        full-text or hybrid search.
-        """
-        return [SearchType.VECTOR]
-
     @abc.abstractmethod
     async def add_embeddings(
         self,
@@ -30,47 +12,14 @@ class VectorDatabase(abc.ABC):
         ids: list[str],
         embeddings_list: list[list[float]],
         metadatas: list[dict[str, Any]],
-        documents: list[str] | None = None,
+        documents: list[str],
     ) -> None:
-        """Add vector data to the specified collection.
-
-        Args:
-            collection: Collection name.
-            ids: Unique IDs for each vector.
-            embeddings_list: List of embedding vectors.
-            metadatas: List of metadata dicts.
-            documents: Optional raw text documents. Required for full-text
-                and hybrid search in backends that support them.
-        """
+        """Add vector data to the specified collection."""
         pass
 
     @abc.abstractmethod
-    async def search(
-        self,
-        collection: str,
-        query_embedding: np.ndarray,
-        k: int = 5,
-        search_type: str = 'vector',
-        query_text: str = '',
-        filter: dict[str, Any] | None = None,
-    ) -> Dict[str, Any]:
-        """Search for the most similar vectors in the specified collection.
-
-        Args:
-            collection: Collection name.
-            query_embedding: Query vector for similarity search.
-            k: Number of results to return.
-            search_type: One of 'vector', 'full_text', 'hybrid'.
-            query_text: Raw query text, used for full_text and hybrid search.
-            filter: Optional metadata filters using Chroma-style ``where``
-                syntax.  Multiple top-level keys are AND-ed.  Supported
-                operators: ``$eq``, ``$ne``, ``$gt``, ``$gte``, ``$lt``,
-                ``$lte``, ``$in``, ``$nin``.  Example::
-
-                    {"file_id": "abc"}
-                    {"created_at": {"$gte": 1700000000}}
-                    {"file_type": {"$in": ["pdf", "docx"]}}
-        """
+    async def search(self, collection: str, query_embedding: np.ndarray, k: int = 5) -> Dict[str, Any]:
+        """Search for the most similar vectors in the specified collection."""
         pass
 
     @abc.abstractmethod
@@ -78,20 +27,6 @@ class VectorDatabase(abc.ABC):
         """Delete vectors from the specified collection by file_id."""
         pass
 
-    @abc.abstractmethod
-    async def delete_by_filter(self, collection: str, filter: dict[str, Any]) -> int:
-        """Delete vectors matching the given metadata filter.
-
-        Args:
-            collection: Collection name.
-            filter: Metadata filter dict in canonical format (see ``search``).
-
-        Returns:
-            Number of deleted vectors (best-effort; backends that cannot
-            report an exact count may return 0).
-        """
-        pass
-
     @abc.abstractmethod
     async def get_or_create_collection(self, collection: str):
         """Get or create collection."""

src/langbot/pkg/vector/vdbs/chroma.py

@@ -28,33 +28,19 @@ class ChromaVectorDatabase(VectorDatabase):
         ids: list[str],
         embeddings_list: list[list[float]],
         metadatas: list[dict[str, Any]],
-        documents: list[str] | None = None,
     ) -> None:
         col = await self.get_or_create_collection(collection)
-        kwargs: dict[str, Any] = dict(embeddings=embeddings_list, ids=ids, metadatas=metadatas)
-        if documents is not None:
-            kwargs['documents'] = documents
-        await asyncio.to_thread(col.add, **kwargs)
+        await asyncio.to_thread(col.add, embeddings=embeddings_list, ids=ids, metadatas=metadatas)
         self.ap.logger.info(f"Added {len(ids)} embeddings to Chroma collection '{collection}'.")
 
-    async def search(
-        self,
-        collection: str,
-        query_embedding: list[float],
-        k: int = 5,
-        search_type: str = 'vector',
-        query_text: str = '',
-        filter: dict[str, Any] | None = None,
-    ) -> dict[str, Any]:
+    async def search(self, collection: str, query_embedding: list[float], k: int = 5) -> dict[str, Any]:
         col = await self.get_or_create_collection(collection)
-        query_kwargs: dict[str, Any] = dict(
+        results = await asyncio.to_thread(
+            col.query,
             query_embeddings=query_embedding,
             n_results=k,
             include=['metadatas', 'distances', 'documents'],
         )
-        if filter:
-            query_kwargs['where'] = filter
-        results = await asyncio.to_thread(col.query, **query_kwargs)
         self.ap.logger.info(f"Chroma search in '{collection}' returned {len(results.get('ids', [[]])[0])} results.")
         return results
 
@@ -63,12 +49,6 @@ class ChromaVectorDatabase(VectorDatabase):
         await asyncio.to_thread(col.delete, where={'file_id': file_id})
         self.ap.logger.info(f"Deleted embeddings from Chroma collection '{collection}' with file_id: {file_id}")
 
-    async def delete_by_filter(self, collection: str, filter: dict[str, Any]) -> int:
-        col = await self.get_or_create_collection(collection)
-        await asyncio.to_thread(col.delete, where=filter)
-        self.ap.logger.info(f"Deleted embeddings from Chroma collection '{collection}' by filter")
-        return 0  # Chroma delete does not return a count
-
     async def delete_collection(self, collection: str):
         if collection in self._collections:
             del self._collections[collection]

src/langbot/pkg/vector/vdbs/milvus.py

@@ -4,51 +4,8 @@ from typing import Any, Dict
 from pymilvus import MilvusClient, DataType, CollectionSchema, FieldSchema
 from pymilvus.milvus_client.index import IndexParams
 from langbot.pkg.vector.vdb import VectorDatabase
-from langbot.pkg.vector.filter_utils import normalize_filter, strip_unsupported_fields
 from langbot.pkg.core import app
 
-# Milvus schema only stores these metadata fields; filter on other fields is
-# silently dropped with a warning.
-_MILVUS_SUPPORTED_FIELDS = {'text', 'file_id', 'chunk_uuid'}
-
-
-def _build_milvus_expr(filter_dict: dict[str, Any]) -> str:
-    """Translate canonical filter dict into a Milvus boolean expression string."""
-    triples = normalize_filter(filter_dict)
-    triples = strip_unsupported_fields(triples, _MILVUS_SUPPORTED_FIELDS)
-    if not triples:
-        return ''
-
-    parts: list[str] = []
-    for field, op, value in triples:
-        if op == '$eq':
-            parts.append(f'{field} == {_milvus_literal(value)}')
-        elif op == '$ne':
-            parts.append(f'{field} != {_milvus_literal(value)}')
-        elif op == '$gt':
-            parts.append(f'{field} > {_milvus_literal(value)}')
-        elif op == '$gte':
-            parts.append(f'{field} >= {_milvus_literal(value)}')
-        elif op == '$lt':
-            parts.append(f'{field} < {_milvus_literal(value)}')
-        elif op == '$lte':
-            parts.append(f'{field} <= {_milvus_literal(value)}')
-        elif op == '$in':
-            items = ', '.join(_milvus_literal(v) for v in value)
-            parts.append(f'{field} in [{items}]')
-        elif op == '$nin':
-            items = ', '.join(_milvus_literal(v) for v in value)
-            parts.append(f'{field} not in [{items}]')
-    return ' and '.join(parts)
-
-
-def _milvus_literal(value: Any) -> str:
-    """Format a Python value as a Milvus expression literal."""
-    if isinstance(value, str):
-        escaped = value.replace('\\', '\\\\').replace('"', '\\"')
-        return f'"{escaped}"'
-    return str(value)
-
 
 class MilvusVectorDatabase(VectorDatabase):
     """Milvus vector database implementation"""
@@ -198,7 +155,6 @@ class MilvusVectorDatabase(VectorDatabase):
         ids: list[str],
         embeddings_list: list[list[float]],
         metadatas: list[dict[str, Any]],
-        documents: list[str] | None = None,
     ) -> None:
         """Add vector embeddings to Milvus collection
 
@@ -244,15 +200,7 @@ class MilvusVectorDatabase(VectorDatabase):
 
         self.ap.logger.info(f"Added {len(ids)} embeddings to Milvus collection '{collection}'")
 
-    async def search(
-        self,
-        collection: str,
-        query_embedding: list[float],
-        k: int = 5,
-        search_type: str = 'vector',
-        query_text: str = '',
-        filter: dict[str, Any] | None = None,
-    ) -> Dict[str, Any]:
+    async def search(self, collection: str, query_embedding: list[float], k: int = 5) -> Dict[str, Any]:
         """Search for similar vectors in Milvus collection
 
         Args:
@@ -269,19 +217,14 @@ class MilvusVectorDatabase(VectorDatabase):
         # Perform search
         search_params = {'metric_type': 'COSINE', 'params': {}}
 
-        search_kwargs: dict[str, Any] = dict(
+        results = await asyncio.to_thread(
+            self.client.search,
             collection_name=collection,
             data=[query_embedding],
             limit=k,
             search_params=search_params,
             output_fields=['text', 'file_id', 'chunk_uuid'],
         )
-        if filter:
-            expr = _build_milvus_expr(filter)
-            if expr:
-                search_kwargs['filter'] = expr
-
-        results = await asyncio.to_thread(self.client.search, **search_kwargs)
 
         # Convert results to Chroma-compatible format
         # Milvus returns: [[ {id, distance, entity: {...}} ]]
@@ -325,21 +268,6 @@ class MilvusVectorDatabase(VectorDatabase):
         await asyncio.to_thread(self.client.delete, collection_name=collection, filter=f'file_id == "{file_id}"')
         self.ap.logger.info(f"Deleted embeddings from Milvus collection '{collection}' with file_id: {file_id}")
 
-    async def delete_by_filter(self, collection: str, filter: dict[str, Any]) -> int:
-        collection = self._normalize_collection_name(collection)
-        await self.get_or_create_collection(collection)
-
-        expr = _build_milvus_expr(filter)
-        if not expr:
-            self.ap.logger.warning(
-                f"Milvus delete_by_filter on '{collection}': filter produced empty expression, skipping"
-            )
-            return 0
-
-        await asyncio.to_thread(self.client.delete, collection_name=collection, filter=expr)
-        self.ap.logger.info(f"Deleted embeddings from Milvus collection '{collection}' by filter")
-        return 0  # Milvus delete does not return a count
-
     async def delete_collection(self, collection: str):
         """Delete a Milvus collection
 

src/langbot/pkg/vector/vdbs/pgvector_db.py

@@ -5,21 +5,10 @@ from sqlalchemy.orm import declarative_base
 from sqlalchemy.ext.asyncio import create_async_engine, AsyncSession, async_sessionmaker
 from pgvector.sqlalchemy import Vector
 from langbot.pkg.vector.vdb import VectorDatabase
-from langbot.pkg.vector.filter_utils import normalize_filter, strip_unsupported_fields
 from langbot.pkg.core import app
 
 Base = declarative_base()
 
-# pgvector schema only stores these metadata fields.
-_PG_SUPPORTED_FIELDS = {'text', 'file_id', 'chunk_uuid'}
-
-# Map schema field names to SQLAlchemy columns (resolved lazily from PgVectorEntry).
-_PG_COLUMN_MAP = {
-    'text': 'text',
-    'file_id': 'file_id',
-    'chunk_uuid': 'chunk_uuid',
-}
-
 
 class PgVectorEntry(Base):
     """SQLAlchemy model for pgvector entries"""
@@ -34,33 +23,6 @@ class PgVectorEntry(Base):
     chunk_uuid = Column(String)
 
 
-def _build_pg_conditions(filter_dict: dict[str, Any]) -> list:
-    """Translate canonical filter dict into a list of SQLAlchemy conditions."""
-    triples = normalize_filter(filter_dict)
-    triples = strip_unsupported_fields(triples, _PG_SUPPORTED_FIELDS)
-
-    conditions = []
-    for field, op, value in triples:
-        col = getattr(PgVectorEntry, _PG_COLUMN_MAP[field])
-        if op == '$eq':
-            conditions.append(col == value)
-        elif op == '$ne':
-            conditions.append(col != value)
-        elif op == '$gt':
-            conditions.append(col > value)
-        elif op == '$gte':
-            conditions.append(col >= value)
-        elif op == '$lt':
-            conditions.append(col < value)
-        elif op == '$lte':
-            conditions.append(col <= value)
-        elif op == '$in':
-            conditions.append(col.in_(value))
-        elif op == '$nin':
-            conditions.append(col.notin_(value))
-    return conditions
-
-
 class PgVectorDatabase(VectorDatabase):
     """PostgreSQL with pgvector extension database implementation"""
 
@@ -147,7 +109,6 @@ class PgVectorDatabase(VectorDatabase):
         ids: list[str],
         embeddings_list: list[list[float]],
         metadatas: list[dict[str, Any]],
-        documents: list[str] | None = None,
     ) -> None:
         """Add vector embeddings to pgvector
 
@@ -181,15 +142,7 @@ class PgVectorDatabase(VectorDatabase):
                 self.ap.logger.error(f'Error adding embeddings to pgvector: {e}')
                 raise
 
-    async def search(
-        self,
-        collection: str,
-        query_embedding: list[float],
-        k: int = 5,
-        search_type: str = 'vector',
-        query_text: str = '',
-        filter: dict[str, Any] | None = None,
-    ) -> Dict[str, Any]:
+    async def search(self, collection: str, query_embedding: list[float], k: int = 5) -> Dict[str, Any]:
         """Search for similar vectors using cosine distance
 
         Args:
@@ -221,10 +174,6 @@ class PgVectorDatabase(VectorDatabase):
                     .limit(k)
                 )
 
-                if filter:
-                    for cond in _build_pg_conditions(filter):
-                        stmt = stmt.filter(cond)
-
                 result = await session.execute(stmt)
                 rows = result.fetchall()
 
@@ -276,39 +225,6 @@ class PgVectorDatabase(VectorDatabase):
                 self.ap.logger.error(f'Error deleting from pgvector: {e}')
                 raise
 
-    async def delete_by_filter(self, collection: str, filter: dict[str, Any]) -> int:
-        """Delete vectors matching a metadata filter.
-
-        Args:
-            collection: Collection name
-            filter: Canonical metadata filter dict
-        """
-        conditions = _build_pg_conditions(filter)
-        if not conditions:
-            self.ap.logger.warning(
-                f"pgvector delete_by_filter on '{collection}': filter produced no conditions, skipping"
-            )
-            return 0
-
-        await self.get_or_create_collection(collection)
-
-        async with self.AsyncSessionLocal() as session:
-            try:
-                from sqlalchemy import delete
-
-                stmt = delete(PgVectorEntry).where(PgVectorEntry.collection == collection)
-                for cond in conditions:
-                    stmt = stmt.where(cond)
-                result = await session.execute(stmt)
-                await session.commit()
-                deleted = result.rowcount
-                self.ap.logger.info(f"Deleted {deleted} embeddings from pgvector collection '{collection}' by filter")
-                return deleted
-            except Exception as e:
-                await session.rollback()
-                self.ap.logger.error(f'Error deleting from pgvector by filter: {e}')
-                raise
-
     async def delete_collection(self, collection: str):
         """Delete all vectors in a collection
 

src/langbot/pkg/vector/vdbs/qdrant.py

@@ -5,37 +5,6 @@ from typing import Any, Dict, List
 from qdrant_client import AsyncQdrantClient, models
 from langbot.pkg.core import app
 from langbot.pkg.vector.vdb import VectorDatabase
-from langbot.pkg.vector.filter_utils import normalize_filter
-
-
-def _build_qdrant_filter(filter_dict: dict[str, Any]) -> models.Filter:
-    """Translate canonical filter dict into a Qdrant ``models.Filter``."""
-    triples = normalize_filter(filter_dict)
-    must: list[models.Condition] = []
-    must_not: list[models.Condition] = []
-
-    for field, op, value in triples:
-        if op == '$eq':
-            must.append(models.FieldCondition(key=field, match=models.MatchValue(value=value)))
-        elif op == '$ne':
-            must_not.append(models.FieldCondition(key=field, match=models.MatchValue(value=value)))
-        elif op == '$in':
-            must.append(models.FieldCondition(key=field, match=models.MatchAny(any=value)))
-        elif op == '$nin':
-            must_not.append(models.FieldCondition(key=field, match=models.MatchAny(any=value)))
-        elif op in ('$gt', '$gte', '$lt', '$lte'):
-            range_kwargs: dict[str, Any] = {}
-            if op == '$gt':
-                range_kwargs['gt'] = value
-            elif op == '$gte':
-                range_kwargs['gte'] = value
-            elif op == '$lt':
-                range_kwargs['lt'] = value
-            elif op == '$lte':
-                range_kwargs['lte'] = value
-            must.append(models.FieldCondition(key=field, range=models.Range(**range_kwargs)))
-
-    return models.Filter(must=must or None, must_not=must_not or None)
 
 
 class QdrantVectorDatabase(VectorDatabase):
@@ -79,7 +48,6 @@ class QdrantVectorDatabase(VectorDatabase):
         ids: List[str],
         embeddings_list: List[List[float]],
         metadatas: List[Dict[str, Any]],
-        documents: List[str] | None = None,
     ) -> None:
         if not embeddings_list:
             return
@@ -92,29 +60,19 @@ class QdrantVectorDatabase(VectorDatabase):
         await self.client.upsert(collection_name=collection, points=points)
         self.ap.logger.info(f"Added {len(ids)} embeddings to Qdrant collection '{collection}'.")
 
-    async def search(
-        self,
-        collection: str,
-        query_embedding: list[float],
-        k: int = 5,
-        search_type: str = 'vector',
-        query_text: str = '',
-        filter: dict[str, Any] | None = None,
-    ) -> dict[str, Any]:
+    async def search(self, collection: str, query_embedding: list[float], k: int = 5) -> dict[str, Any]:
         exists = await self.client.collection_exists(collection)
         if not exists:
             return {'ids': [[]], 'metadatas': [[]], 'distances': [[]]}
 
-        query_kwargs: dict[str, Any] = dict(
-            collection_name=collection,
-            query=query_embedding,
-            limit=k,
-            with_payload=True,
-        )
-        if filter:
-            query_kwargs['query_filter'] = _build_qdrant_filter(filter)
-
-        hits = (await self.client.query_points(**query_kwargs)).points
+        hits = (
+            await self.client.query_points(
+                collection_name=collection,
+                query=query_embedding,
+                limit=k,
+                with_payload=True,
+            )
+        ).points
         ids = [str(hit.id) for hit in hits]
         metadatas = [hit.payload or {} for hit in hits]
         # Qdrant's score is similarity; convert to a pseudo-distance for consistency
@@ -137,19 +95,6 @@ class QdrantVectorDatabase(VectorDatabase):
         )
         self.ap.logger.info(f"Deleted embeddings from Qdrant collection '{collection}' with file_id: {file_id}")
 
-    async def delete_by_filter(self, collection: str, filter: dict[str, Any]) -> int:
-        exists = await self.client.collection_exists(collection)
-        if not exists:
-            return 0
-
-        qdrant_filter = _build_qdrant_filter(filter)
-        await self.client.delete(
-            collection_name=collection,
-            points_selector=qdrant_filter,
-        )
-        self.ap.logger.info(f"Deleted embeddings from Qdrant collection '{collection}' by filter")
-        return 0  # Qdrant delete does not return a count
-
     async def delete_collection(self, collection: str):
         try:
             await self.client.delete_collection(collection)

src/langbot/pkg/vector/vdbs/seekdb.py

@@ -5,7 +5,7 @@ from typing import Any, Dict, List
 
 
 from langbot.pkg.core import app
-from langbot.pkg.vector.vdb import VectorDatabase, SearchType
+from langbot.pkg.vector.vdb import VectorDatabase
 
 try:
     import pyseekdb
@@ -25,13 +25,9 @@ class SeekDBVectorDatabase(VectorDatabase):
     SeekDB is an AI-native search database by OceanBase that unifies
     relational, vector, text, JSON and GIS in a single engine.
 
-    Supports embedded mode, remote server mode, and full-text/hybrid search.
+    Supports both embedded mode and remote server mode.
     """
 
-    @classmethod
-    def supported_search_types(cls) -> list[SearchType]:
-        return [SearchType.VECTOR, SearchType.FULL_TEXT, SearchType.HYBRID]
-
     def __init__(self, ap: app.Application):
         if not SEEKDB_AVAILABLE:
             raise ImportError('pyseekdb is not installed. Install it with: pip install pyseekdb')
@@ -93,7 +89,6 @@ class SeekDBVectorDatabase(VectorDatabase):
             {
                 '\x00': '',
                 '\\': '\\\\',
-                "'": "''",  # Standard SQL escaping (OceanBase NO_BACKSLASH_ESCAPES)
                 '"': '\\"',
                 '\n': '\\n',
                 '\r': '\\r',
@@ -116,10 +111,8 @@ class SeekDBVectorDatabase(VectorDatabase):
 
         # Collection doesn't exist, create it
         if vector_size is None:
-            raise ValueError(
-                f"Cannot create SeekDB collection '{collection}' without knowing the vector dimension. "
-                'Ensure add_embeddings is called before any standalone get_or_create_collection.'
-            )
+            # Default dimension if not specified
+            vector_size = 384
 
         # Create HNSW configuration
         config = HNSWConfiguration(dimension=vector_size, distance='cosine')
@@ -154,12 +147,7 @@ class SeekDBVectorDatabase(VectorDatabase):
         return await self._get_or_create_collection_internal(collection)
 
     async def add_embeddings(
-        self,
-        collection: str,
-        ids: List[str],
-        embeddings_list: List[List[float]],
-        metadatas: List[Dict[str, Any]],
-        documents: List[str] | None = None,
+        self, collection: str, ids: List[str], embeddings_list: List[List[float]], metadatas: List[Dict[str, Any]]
     ) -> None:
         """Add vector embeddings to the specified collection.
 
@@ -168,7 +156,6 @@ class SeekDBVectorDatabase(VectorDatabase):
             ids: List of document IDs
             embeddings_list: List of embedding vectors
             metadatas: List of metadata dictionaries
-            documents: Optional raw text documents for full-text search support
         """
         if not embeddings_list:
             return
@@ -179,33 +166,17 @@ class SeekDBVectorDatabase(VectorDatabase):
 
         cleaned_metadatas = [self._clean_metadata(meta) for meta in metadatas]
 
-        kwargs: Dict[str, Any] = dict(ids=ids, embeddings=embeddings_list, metadatas=cleaned_metadatas)
-        if documents is not None:
-            kwargs['documents'] = [doc.translate(self._escape_table) for doc in documents]
-        await asyncio.to_thread(coll.add, **kwargs)
+        await asyncio.to_thread(coll.add, ids=ids, embeddings=embeddings_list, metadatas=cleaned_metadatas)
 
         self.ap.logger.info(f"Added {len(ids)} embeddings to SeekDB collection '{collection}'")
 
-    async def search(
-        self,
-        collection: str,
-        query_embedding: List[float],
-        k: int = 5,
-        search_type: str = 'vector',
-        query_text: str = '',
-        filter: Dict[str, Any] | None = None,
-    ) -> Dict[str, Any]:
+    async def search(self, collection: str, query_embedding: List[float], k: int = 5) -> Dict[str, Any]:
         """Search for the most similar vectors in the specified collection.
 
-        SeekDB supports vector, full-text, and hybrid search modes.
-
         Args:
             collection: Collection name
-            query_embedding: Query vector (used for vector and hybrid modes)
+            query_embedding: Query vector
             k: Number of results to return
-            search_type: One of 'vector', 'full_text', 'hybrid'
-            query_text: Raw query text (used for full_text and hybrid modes)
-            filter: Optional metadata filters (Chroma-style ``where`` syntax).
 
         Returns:
             Dictionary with 'ids', 'metadatas', 'distances' keys
@@ -222,73 +193,11 @@ class SeekDBVectorDatabase(VectorDatabase):
         else:
             coll = self._collections[collection]
 
-        # Route by search type.
-        # pyseekdb's query() always requires embeddings, so full-text and
-        # hybrid modes use hybrid_search() which supports text-only queries
-        # and returns the same nested-list format with distances.
-        if search_type == SearchType.FULL_TEXT:
-            if not query_text:
-                return {'ids': [[]], 'metadatas': [[]], 'distances': [[]]}
+        # Perform query
+        # SeekDB's query() returns: {'ids': [[...]], 'metadatas': [[...]], 'distances': [[...]]}
+        results = await asyncio.to_thread(coll.query, query_embeddings=query_embedding, n_results=k)
 
-            query_cfg: Dict[str, Any] = {
-                'where_document': {'$contains': query_text},
-                'n_results': k,
-            }
-            if filter:
-                query_cfg['where'] = filter
-
-            # TODO: pyseekdb hybrid_search with query-only (no knn) returns None
-            # for IDs due to column name mismatch (*/_id vs _id).
-            # See: https://github.com/oceanbase/pyseekdb/issues/171
-            results = await asyncio.to_thread(
-                coll.hybrid_search,
-                query=query_cfg,
-                knn=None,
-                n_results=k,
-                include=['documents', 'metadatas'],
-            )
-
-        elif search_type == SearchType.HYBRID:
-            if not query_text:
-                # Fall back to pure vector search when no text is provided
-                query_kwargs: Dict[str, Any] = {
-                    'n_results': k,
-                    'query_embeddings': query_embedding,
-                }
-                if filter:
-                    query_kwargs['where'] = filter
-                results = await asyncio.to_thread(coll.query, **query_kwargs)
-            else:
-                query_cfg = {
-                    'where_document': {'$contains': query_text},
-                    'n_results': k,
-                }
-                knn_cfg: Dict[str, Any] = {
-                    'query_embeddings': query_embedding,
-                    'n_results': k,
-                }
-                if filter:
-                    query_cfg['where'] = filter
-                    knn_cfg['where'] = filter
-
-                results = await asyncio.to_thread(
-                    coll.hybrid_search,
-                    query=query_cfg,
-                    knn=knn_cfg,
-                    rank={'rrf': {}},
-                    n_results=k,
-                    include=['documents', 'metadatas'],
-                )
-        else:
-            # Default: vector search via query()
-            query_kwargs = {'n_results': k, 'query_embeddings': query_embedding}
-            if filter:
-                query_kwargs['where'] = filter
-            results = await asyncio.to_thread(coll.query, **query_kwargs)
-
-        self.ap.logger.info(
-            f"SeekDB {search_type} search in '{collection}' returned {len(results.get('ids', [[]])[0])} results"
-        )
+        self.ap.logger.info(f"SeekDB search in '{collection}' returned {len(results.get('ids', [[]])[0])} results")
 
         return results
 
@@ -318,28 +227,6 @@ class SeekDBVectorDatabase(VectorDatabase):
 
         self.ap.logger.info(f"Deleted embeddings from SeekDB collection '{collection}' with file_id: {file_id}")
 
-    async def delete_by_filter(self, collection: str, filter: Dict[str, Any]) -> int:
-        """Delete vectors from the collection by metadata filter.
-
-        Args:
-            collection: Collection name
-            filter: Chroma-style ``where`` filter dict
-        """
-        exists = await asyncio.to_thread(self.client.has_collection, collection)
-        if not exists:
-            self.ap.logger.warning(f"SeekDB collection '{collection}' not found for deletion")
-            return 0
-
-        if collection not in self._collections:
-            coll = await asyncio.to_thread(self.client.get_collection, collection, embedding_function=None)
-            self._collections[collection] = coll
-        else:
-            coll = self._collections[collection]
-
-        await asyncio.to_thread(coll.delete, where=filter)
-        self.ap.logger.info(f"Deleted embeddings from SeekDB collection '{collection}' by filter")
-        return 0  # SeekDB delete does not return a count
-
     async def delete_collection(self, collection: str):
         """Delete the entire collection.
 

src/langbot/templates/default-pipeline-config.json

@@ -17,10 +17,6 @@
             "prefix": [],
             "regexp": []
         },
-        "message-aggregation": {
-            "enabled": false,
-            "delay": 1.5
-        },
         "misc": {
             "combine-quote-message": true
         }

src/langbot/templates/metadata/pipeline/trigger.yaml

@@ -123,34 +123,6 @@ stages:
         type: array[string]
         required: true
         default: []
-  - name: message-aggregation
-    label:
-      en_US: Message Aggregation
-      zh_Hans: 消息聚合
-    description:
-      en_US: When a user sends multiple messages consecutively, wait for a period and merge them into one before processing
-      zh_Hans: 当用户连续发送多条消息时，等待一段时间后合并为一条消息再处理（防抖）
-    config:
-      - name: enabled
-        label:
-          en_US: Enable Message Aggregation
-          zh_Hans: 启用消息聚合
-        description:
-          en_US: If enabled, consecutive messages from the same user will be merged after a delay
-          zh_Hans: 如果启用，同一用户连续发送的消息将在延迟后合并处理
-        type: boolean
-        required: true
-        default: false
-      - name: delay
-        label:
-          en_US: Aggregation Delay (seconds)
-          zh_Hans: 聚合延迟（秒）
-        description:
-          en_US: 'Wait time before merging messages. Range: 1.0-10.0 seconds.'
-          zh_Hans: '合并消息前的等待时间。范围：1.0-10.0 秒。'
-        type: float
-        required: true
-        default: 1.5
   - name: misc
     label:
       en_US: Misc

tests/unit_tests/pipeline/test_config_coercion.py

@@ -1,113 +0,0 @@
-"""Unit tests for config_coercion module"""
-
-from __future__ import annotations
-
-import pytest
-
-from langbot.pkg.pipeline.config_coercion import _coerce_value, coerce_pipeline_config
-
-
-class TestCoerceValue:
-    """Tests for _coerce_value function"""
-
-    def test_none_passthrough(self):
-        assert _coerce_value(None, 'integer') is None
-        assert _coerce_value(None, 'boolean') is None
-
-    def test_string_to_integer(self):
-        assert _coerce_value('120', 'integer') == 120
-        assert _coerce_value('0', 'integer') == 0
-        assert _coerce_value('-5', 'integer') == -5
-
-    def test_integer_passthrough(self):
-        assert _coerce_value(42, 'integer') == 42
-
-    def test_string_to_float(self):
-        assert _coerce_value('3.14', 'number') == 3.14
-        assert _coerce_value('3.14', 'float') == 3.14
-
-    def test_int_to_float(self):
-        assert _coerce_value(3, 'number') == 3.0
-        assert isinstance(_coerce_value(3, 'number'), float)
-
-    def test_float_passthrough(self):
-        assert _coerce_value(3.14, 'float') == 3.14
-
-    def test_string_to_bool(self):
-        assert _coerce_value('true', 'boolean') is True
-        assert _coerce_value('True', 'boolean') is True
-        assert _coerce_value('false', 'boolean') is False
-        assert _coerce_value('False', 'boolean') is False
-
-    def test_bool_passthrough(self):
-        assert _coerce_value(True, 'boolean') is True
-        assert _coerce_value(False, 'boolean') is False
-
-    def test_invalid_bool_string_raises(self):
-        with pytest.raises(ValueError):
-            _coerce_value('notabool', 'boolean')
-
-    def test_unknown_type_passthrough(self):
-        assert _coerce_value('hello', 'string') == 'hello'
-        assert _coerce_value('hello', 'unknown') == 'hello'
-
-    def test_invalid_integer_raises(self):
-        with pytest.raises(ValueError):
-            _coerce_value('abc', 'integer')
-
-
-class TestCoercePipelineConfig:
-    """Tests for coerce_pipeline_config function"""
-
-    def _make_meta(self, section_name: str, stage_name: str, fields: list[dict]) -> dict:
-        return {
-            'name': section_name,
-            'stages': [{'name': stage_name, 'config': fields}],
-        }
-
-    def test_coerce_integer_in_config(self):
-        config = {'trigger': {'misc': {'timeout': '120'}}}
-        meta = self._make_meta('trigger', 'misc', [{'name': 'timeout', 'type': 'integer'}])
-        coerce_pipeline_config(config, meta)
-        assert config['trigger']['misc']['timeout'] == 120
-
-    def test_coerce_boolean_in_config(self):
-        config = {'output': {'misc': {'at-sender': 'true'}}}
-        meta = self._make_meta('output', 'misc', [{'name': 'at-sender', 'type': 'boolean'}])
-        coerce_pipeline_config(config, meta)
-        assert config['output']['misc']['at-sender'] is True
-
-    def test_missing_section_skipped(self):
-        config = {'ai': {}}
-        meta = self._make_meta('trigger', 'misc', [{'name': 'x', 'type': 'integer'}])
-        coerce_pipeline_config(config, meta)  # should not raise
-
-    def test_missing_field_skipped(self):
-        config = {'trigger': {'misc': {}}}
-        meta = self._make_meta('trigger', 'misc', [{'name': 'nonexistent', 'type': 'integer'}])
-        coerce_pipeline_config(config, meta)  # should not raise
-
-    def test_invalid_value_logs_warning(self, caplog):
-        config = {'trigger': {'misc': {'timeout': 'abc'}}}
-        meta = self._make_meta('trigger', 'misc', [{'name': 'timeout', 'type': 'integer'}])
-        import logging
-
-        with caplog.at_level(logging.WARNING):
-            coerce_pipeline_config(config, meta)
-        assert config['trigger']['misc']['timeout'] == 'abc'  # unchanged
-        assert 'Failed to coerce' in caplog.text
-
-    def test_empty_metadata(self):
-        config = {'trigger': {'misc': {'timeout': '120'}}}
-        coerce_pipeline_config(config)  # no metadata args, should not raise
-
-    def test_multiple_metadata(self):
-        config = {
-            'trigger': {'misc': {'timeout': '120'}},
-            'output': {'misc': {'at-sender': 'false'}},
-        }
-        meta_trigger = self._make_meta('trigger', 'misc', [{'name': 'timeout', 'type': 'integer'}])
-        meta_output = self._make_meta('output', 'misc', [{'name': 'at-sender', 'type': 'boolean'}])
-        coerce_pipeline_config(config, meta_trigger, meta_output)
-        assert config['trigger']['misc']['timeout'] == 120
-        assert config['output']['misc']['at-sender'] is False

tests/unit_tests/plugin/test_plugin_component_filtering.py

@@ -38,11 +38,13 @@ async def test_plugin_list_filter_by_component_kinds():
                 'manifest': {
                     'metadata': {
                         'author': 'author2',
-                        'name': 'plugin_with_knowledge_engine_only',
+                        'name': 'plugin_with_knowledge_retriever_only',
                     }
                 }
             },
-            'components': [{'manifest': {'manifest': {'kind': 'KnowledgeEngine', 'metadata': {'name': 'retriever1'}}}}],
+            'components': [
+                {'manifest': {'manifest': {'kind': 'KnowledgeRetriever', 'metadata': {'name': 'retriever1'}}}}
+            ],
         },
         {
             'debug': False,
@@ -79,7 +81,7 @@ async def test_plugin_list_filter_by_component_kinds():
                 }
             },
             'components': [
-                {'manifest': {'manifest': {'kind': 'KnowledgeEngine', 'metadata': {'name': 'retriever2'}}}},
+                {'manifest': {'manifest': {'kind': 'KnowledgeRetriever', 'metadata': {'name': 'retriever2'}}}},
                 {'manifest': {'manifest': {'kind': 'Tool', 'metadata': {'name': 'tool2'}}}},
             ],
         },
@@ -106,8 +108,8 @@ async def test_plugin_list_filter_by_component_kinds():
     assert 'plugin_with_command' in plugin_names
     assert 'plugin_with_event_listener' in plugin_names
     assert 'plugin_with_mixed_components' in plugin_names
-    # Plugin with only KnowledgeEngine should NOT be included
-    assert 'plugin_with_knowledge_engine_only' not in plugin_names
+    # Plugin with only KnowledgeRetriever should NOT be included
+    assert 'plugin_with_knowledge_retriever_only' not in plugin_names
 
 
 @pytest.mark.asyncio
@@ -148,7 +150,9 @@ async def test_plugin_list_filter_no_filter():
                     }
                 }
             },
-            'components': [{'manifest': {'manifest': {'kind': 'KnowledgeEngine', 'metadata': {'name': 'retriever1'}}}}],
+            'components': [
+                {'manifest': {'manifest': {'kind': 'KnowledgeRetriever', 'metadata': {'name': 'retriever1'}}}}
+            ],
         },
     ]
 
@@ -185,7 +189,7 @@ async def test_plugin_list_filter_empty_result():
     connector = PluginRuntimeConnector(mock_app, AsyncMock())
     connector.handler = MagicMock()
 
-    # Mock plugin data - only KnowledgeEngine plugins
+    # Mock plugin data - only KnowledgeRetriever plugins
     mock_plugins = [
         {
             'debug': False,
@@ -197,7 +201,9 @@ async def test_plugin_list_filter_empty_result():
                     }
                 }
             },
-            'components': [{'manifest': {'manifest': {'kind': 'KnowledgeEngine', 'metadata': {'name': 'retriever1'}}}}],
+            'components': [
+                {'manifest': {'manifest': {'kind': 'KnowledgeRetriever', 'metadata': {'name': 'retriever1'}}}}
+            ],
         },
     ]
 

uv.lock

@@ -964,30 +964,6 @@ wheels = [
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-source = { registry = "https://pypi.org/simple" }
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-]
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-    { url = "https://files.pythonhosted.org/packages/a9/c1/dabe88f52c3e3760d861401bb994df08f672ec893b8f7592dc91626adcf3/cuda_bindings-12.9.4-cp312-cp312-manylinux_2_24_x86_64.manylinux_2_28_x86_64.whl", hash = "sha256:fda147a344e8eaeca0c6ff113d2851ffca8f7dfc0a6c932374ee5c47caa649c8", size = 12151019, upload-time = "2025-10-21T14:51:43.167Z" },
-    { url = "https://files.pythonhosted.org/packages/63/56/e465c31dc9111be3441a9ba7df1941fe98f4aa6e71e8788a3fb4534ce24d/cuda_bindings-12.9.4-cp313-cp313-manylinux_2_24_x86_64.manylinux_2_28_x86_64.whl", hash = "sha256:32bdc5a76906be4c61eb98f546a6786c5773a881f3b166486449b5d141e4a39f", size = 11906628, upload-time = "2025-10-21T14:51:49.905Z" },
-    { url = "https://files.pythonhosted.org/packages/a3/84/1e6be415e37478070aeeee5884c2022713c1ecc735e6d82d744de0252eee/cuda_bindings-12.9.4-cp313-cp313t-manylinux_2_24_x86_64.manylinux_2_28_x86_64.whl", hash = "sha256:56e0043c457a99ac473ddc926fe0dc4046694d99caef633e92601ab52cbe17eb", size = 11925991, upload-time = "2025-10-21T14:51:56.535Z" },
-    { url = "https://files.pythonhosted.org/packages/d1/af/6dfd8f2ed90b1d4719bc053ff8940e494640fe4212dc3dd72f383e4992da/cuda_bindings-12.9.4-cp314-cp314-manylinux_2_24_x86_64.manylinux_2_28_x86_64.whl", hash = "sha256:8b72ee72a9cc1b531db31eebaaee5c69a8ec3500e32c6933f2d3b15297b53686", size = 11922703, upload-time = "2025-10-21T14:52:03.585Z" },
-    { url = "https://files.pythonhosted.org/packages/6c/19/90ac264acc00f6df8a49378eedec9fd2db3061bf9263bf9f39fd3d8377c3/cuda_bindings-12.9.4-cp314-cp314t-manylinux_2_24_x86_64.manylinux_2_28_x86_64.whl", hash = "sha256:d80bffc357df9988dca279734bc9674c3934a654cab10cadeed27ce17d8635ee", size = 11924658, upload-time = "2025-10-21T14:52:10.411Z" },
-]
-
-[[package]]
-name = "cuda-pathfinder"
-version = "1.4.1"
-source = { registry = "https://pypi.org/simple" }
-wheels = [
-    { url = "https://files.pythonhosted.org/packages/07/02/59a5bc738a09def0b49aea0e460bdf97f65206d0d041246147cf6207e69c/cuda_pathfinder-1.4.1-py3-none-any.whl", hash = "sha256:40793006082de88e0950753655e55558a446bed9a7d9d0bcb48b2506d50ed82a", size = 43903, upload-time = "2026-03-06T21:05:24.372Z" },
-]
-
 [[package]]
 name = "dashscope"
 version = "1.25.10"
@@ -1753,15 +1729,6 @@ wheels = [
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 ]
 
-[[package]]
-name = "joblib"
-version = "1.5.3"
-source = { registry = "https://pypi.org/simple" }
-sdist = { url = "https://files.pythonhosted.org/packages/41/f2/d34e8b3a08a9cc79a50b2208a93dce981fe615b64d5a4d4abee421d898df/joblib-1.5.3.tar.gz", hash = "sha256:8561a3269e6801106863fd0d6d84bb737be9e7631e33aaed3fb9ce5953688da3", size = 331603, upload-time = "2025-12-15T08:41:46.427Z" }
-wheels = [
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-]
-
 [[package]]
 name = "jsonpatch"
 version = "1.33"
@@ -1832,7 +1799,7 @@ wheels = [
 
 [[package]]
 name = "langbot"
-version = "4.9.0"
+version = "4.8.3"
 source = { editable = "." }
 dependencies = [
     { name = "aiocqhttp" },
@@ -1846,7 +1813,6 @@ dependencies = [
     { name = "asyncpg" },
     { name = "beautifulsoup4" },
     { name = "boto3" },
-    { name = "botocore" },
     { name = "certifi" },
     { name = "chardet" },
     { name = "chromadb" },
@@ -1925,7 +1891,6 @@ requires-dist = [
     { name = "asyncpg", specifier = ">=0.30.0" },
     { name = "beautifulsoup4", specifier = ">=4.12.3" },
     { name = "boto3", specifier = ">=1.35.0" },
-    { name = "botocore", specifier = ">=1.42.39" },
     { name = "certifi", specifier = ">=2025.4.26" },
     { name = "chardet", specifier = ">=5.2.0" },
     { name = "chromadb", specifier = ">=0.4.24" },
@@ -1937,7 +1902,7 @@ requires-dist = [
     { name = "ebooklib", specifier = ">=0.18" },
     { name = "gewechat-client", specifier = ">=0.1.5" },
     { name = "html2text", specifier = ">=2024.2.26" },
-    { name = "langbot-plugin", specifier = "==0.3.0" },
+    { name = "langbot-plugin", specifier = "==0.2.5" },
     { name = "langchain", specifier = ">=0.2.0" },
     { name = "langchain-text-splitters", specifier = ">=0.0.1" },
     { name = "lark-oapi", specifier = ">=1.4.15" },
@@ -1960,7 +1925,7 @@ requires-dist = [
     { name = "pymilvus", specifier = ">=2.6.4" },
     { name = "pynacl", specifier = ">=1.5.0" },
     { name = "pypdf2", specifier = ">=3.0.1" },
-    { name = "pyseekdb", specifier = "==1.1.0.post3" },
+    { name = "pyseekdb", specifier = "==1.0.0b7" },
     { name = "python-docx", specifier = ">=1.1.0" },
     { name = "python-socks", specifier = ">=2.7.1" },
     { name = "python-telegram-bot", specifier = ">=22.0" },
@@ -1993,7 +1958,7 @@ dev = [
 
 [[package]]
 name = "langbot-plugin"
-version = "0.3.0"
+version = "0.2.5"
 source = { registry = "https://pypi.org/simple" }
 dependencies = [
     { name = "aiofiles" },
@@ -2011,9 +1976,9 @@ dependencies = [
     { name = "watchdog" },
     { name = "websockets" },
 ]
-sdist = { url = "https://files.pythonhosted.org/packages/8d/e5/3686b3225e5f2ee6e19a6050bb981b49a91f2450dff83deb5dfba13b3a2a/langbot_plugin-0.3.0.tar.gz", hash = "sha256:9add2d6e81c8cc7281863e4a92a33ed6228dcc0243f4327ac4062edc962dbf98", size = 169751, upload-time = "2026-03-08T09:54:27.102Z" }
+sdist = { url = "https://files.pythonhosted.org/packages/28/0e/117dfc00f36323cce2369be5176d5cd5247ff52edb34791413af9623f290/langbot_plugin-0.2.5.tar.gz", hash = "sha256:a1bf04c1c07b30c72fb9b28e1330372bb4a43ae2db309394435fc088c513cfd5", size = 103910, upload-time = "2026-01-29T13:55:34.328Z" }
 wheels = [
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+    { url = "https://files.pythonhosted.org/packages/b1/0e/19b9a427206fa46aafbff03437296e38f425365c9ea6a97cbcfa791da2f8/langbot_plugin-0.2.5-py3-none-any.whl", hash = "sha256:b784248fc1f4754cd143bd9a16a7abd89a5c9735a4aa2b03c1c1e771b7d361e9", size = 133362, upload-time = "2026-01-29T13:55:32.486Z" },
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 [[package]]
@@ -2849,15 +2814,6 @@ wheels = [
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 ]
 
-[[package]]
-name = "networkx"
-version = "3.6.1"
-source = { registry = "https://pypi.org/simple" }
-sdist = { url = "https://files.pythonhosted.org/packages/6a/51/63fe664f3908c97be9d2e4f1158eb633317598cfa6e1fc14af5383f17512/networkx-3.6.1.tar.gz", hash = "sha256:26b7c357accc0c8cde558ad486283728b65b6a95d85ee1cd66bafab4c8168509", size = 2517025, upload-time = "2025-12-08T17:02:39.908Z" }
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-
 [[package]]
 name = "nodeenv"
 version = "1.10.0"
@@ -2946,140 +2902,6 @@ wheels = [
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     requiresBuild: true
     optionalDependencies:
       '@img/sharp-libvips-linuxmusl-arm64': 1.2.4
@@ -665,7 +647,6 @@ packages:
     engines: {node: ^18.17.0 || ^20.3.0 || >=21.0.0}
     cpu: [x64]
     os: [linux]
-    libc: [musl]
     requiresBuild: true
     optionalDependencies:
       '@img/sharp-libvips-linuxmusl-x64': 1.2.4
@@ -782,7 +763,6 @@ packages:
     engines: {node: '>= 10'}
     cpu: [arm64]
     os: [linux]
-    libc: [glibc]
     requiresBuild: true
     dev: false
     optional: true
@@ -792,7 +772,6 @@ packages:
     engines: {node: '>= 10'}
     cpu: [arm64]
     os: [linux]
-    libc: [musl]
     requiresBuild: true
     dev: false
     optional: true
@@ -802,7 +781,6 @@ packages:
     engines: {node: '>= 10'}
     cpu: [x64]
     os: [linux]
-    libc: [glibc]
     requiresBuild: true
     dev: false
     optional: true
@@ -812,7 +790,6 @@ packages:
     engines: {node: '>= 10'}
     cpu: [x64]
     os: [linux]
-    libc: [musl]
     requiresBuild: true
     dev: false
     optional: true
@@ -1912,7 +1889,6 @@ packages:
     engines: {node: '>= 10'}
     cpu: [arm64]
     os: [linux]
-    libc: [glibc]
     requiresBuild: true
     dev: false
     optional: true
@@ -1922,7 +1898,6 @@ packages:
     engines: {node: '>= 10'}
     cpu: [arm64]
     os: [linux]
-    libc: [musl]
     requiresBuild: true
     dev: false
     optional: true
@@ -1932,7 +1907,6 @@ packages:
     engines: {node: '>= 10'}
     cpu: [x64]
     os: [linux]
-    libc: [glibc]
     requiresBuild: true
     dev: false
     optional: true
@@ -1942,7 +1916,6 @@ packages:
     engines: {node: '>= 10'}
     cpu: [x64]
     os: [linux]
-    libc: [musl]
     requiresBuild: true
     dev: false
     optional: true
@@ -2358,7 +2331,6 @@ packages:
     resolution: {integrity: sha512-34gw7PjDGB9JgePJEmhEqBhWvCiiWCuXsL9hYphDF7crW7UgI05gyBAi6MF58uGcMOiOqSJ2ybEeCvHcq0BCmQ==}
     cpu: [arm64]
     os: [linux]
-    libc: [glibc]
     requiresBuild: true
     dev: true
     optional: true
@@ -2367,7 +2339,6 @@ packages:
     resolution: {integrity: sha512-RyMIx6Uf53hhOtJDIamSbTskA99sPHS96wxVE/bJtePJJtpdKGXO1wY90oRdXuYOGOTuqjT8ACccMc4K6QmT3w==}
     cpu: [arm64]
     os: [linux]
-    libc: [musl]
     requiresBuild: true
     dev: true
     optional: true
@@ -2376,7 +2347,6 @@ packages:
     resolution: {integrity: sha512-D8Vae74A4/a+mZH0FbOkFJL9DSK2R6TFPC9M+jCWYia/q2einCubX10pecpDiTmkJVUH+y8K3BZClycD8nCShA==}
     cpu: [ppc64]
     os: [linux]
-    libc: [glibc]
     requiresBuild: true
     dev: true
     optional: true
@@ -2385,7 +2355,6 @@ packages:
     resolution: {integrity: sha512-frxL4OrzOWVVsOc96+V3aqTIQl1O2TjgExV4EKgRY09AJ9leZpEg8Ak9phadbuX0BA4k8U5qtvMSQQGGmaJqcQ==}
     cpu: [riscv64]
     os: [linux]
-    libc: [glibc]
     requiresBuild: true
     dev: true
     optional: true
@@ -2394,7 +2363,6 @@ packages:
     resolution: {integrity: sha512-mJ5vuDaIZ+l/acv01sHoXfpnyrNKOk/3aDoEdLO/Xtn9HuZlDD6jKxHlkN8ZhWyLJsRBxfv9GYM2utQ1SChKew==}
     cpu: [riscv64]
     os: [linux]
-    libc: [musl]
     requiresBuild: true
     dev: true
     optional: true
@@ -2403,7 +2371,6 @@ packages:
     resolution: {integrity: sha512-kELo8ebBVtb9sA7rMe1Cph4QHreByhaZ2QEADd9NzIQsYNQpt9UkM9iqr2lhGr5afh885d/cB5QeTXSbZHTYPg==}
     cpu: [s390x]
     os: [linux]
-    libc: [glibc]
     requiresBuild: true
     dev: true
     optional: true
@@ -2412,7 +2379,6 @@ packages:
     resolution: {integrity: sha512-C3ZAHugKgovV5YvAMsxhq0gtXuwESUKc5MhEtjBpLoHPLYM+iuwSj3lflFwK3DPm68660rZ7G8BMcwSro7hD5w==}
     cpu: [x64]
     os: [linux]
-    libc: [glibc]
     requiresBuild: true
     dev: true
     optional: true
@@ -2421,7 +2387,6 @@ packages:
     resolution: {integrity: sha512-rV0YSoyhK2nZ4vEswT/QwqzqQXw5I6CjoaYMOX0TqBlWhojUf8P94mvI7nuJTeaCkkds3QE4+zS8Ko+GdXuZtA==}
     cpu: [x64]
     os: [linux]
-    libc: [musl]
     requiresBuild: true
     dev: true
     optional: true
@@ -3908,14 +3873,6 @@ packages:
       zwitch: 2.0.4
     dev: false
 
-  /hast-util-sanitize@5.0.2:
-    resolution: {integrity: sha512-3yTWghByc50aGS7JlGhk61SPenfE/p1oaFeNwkOOyrscaOkMGrcW9+Cy/QAIOBpZxP1yqDIzFMR0+Np0i0+usg==}
-    dependencies:
-      '@types/hast': 3.0.4
-      '@ungap/structured-clone': 1.3.0
-      unist-util-position: 5.0.0
-    dev: false
-
   /hast-util-to-jsx-runtime@2.3.6:
     resolution: {integrity: sha512-zl6s8LwNyo1P9uw+XJGvZtdFF1GdAkOg8ujOw+4Pyb76874fLps4ueHXDhXWdk6YHQ6OgUtinliG7RsYvCbbBg==}
     dependencies:
@@ -4456,7 +4413,6 @@ packages:
     engines: {node: '>= 12.0.0'}
     cpu: [arm64]
     os: [linux]
-    libc: [glibc]
     requiresBuild: true
     dev: false
     optional: true
@@ -4466,7 +4422,6 @@ packages:
     engines: {node: '>= 12.0.0'}
     cpu: [arm64]
     os: [linux]
-    libc: [musl]
     requiresBuild: true
     dev: false
     optional: true
@@ -4476,7 +4431,6 @@ packages:
     engines: {node: '>= 12.0.0'}
     cpu: [x64]
     os: [linux]
-    libc: [glibc]
     requiresBuild: true
     dev: false
     optional: true
@@ -4486,7 +4440,6 @@ packages:
     engines: {node: '>= 12.0.0'}
     cpu: [x64]
     os: [linux]
-    libc: [musl]
     requiresBuild: true
     dev: false
     optional: true
@@ -5760,13 +5713,6 @@ packages:
       vfile: 6.0.3
     dev: false
 
-  /rehype-sanitize@6.0.0:
-    resolution: {integrity: sha512-CsnhKNsyI8Tub6L4sm5ZFsme4puGfc6pYylvXo1AeqaGbjOYyzNv3qZPwvs0oMJ39eryyeOdmxwUIo94IpEhqg==}
-    dependencies:
-      '@types/hast': 3.0.4
-      hast-util-sanitize: 5.0.2
-    dev: false
-
   /rehype-slug@6.0.0:
     resolution: {integrity: sha512-lWyvf/jwu+oS5+hL5eClVd3hNdmwM1kAC0BUvEGD19pajQMIzcNUd/k9GsfQ+FfECvX+JE+e9/btsKH0EjJT6A==}
     dependencies:

web/src/app/home/bots/BotDetailDialog.tsx

@@ -5,7 +5,6 @@ import {
   Dialog,
   DialogContent,
   DialogHeader,
-  DialogDescription,
   DialogTitle,
   DialogFooter,
 } from '@/components/ui/dialog';
@@ -22,7 +21,6 @@ import {
 import { Button } from '@/components/ui/button';
 import BotForm from '@/app/home/bots/components/bot-form/BotForm';
 import { BotLogListComponent } from '@/app/home/bots/components/bot-log/view/BotLogListComponent';
-import BotSessionMonitor from '@/app/home/bots/components/bot-session/BotSessionMonitor';
 import { useTranslation } from 'react-i18next';
 import { z } from 'zod';
 import { httpClient } from '@/app/infra/http/HttpClient';
@@ -84,19 +82,6 @@ export default function BotDetailDialog({
         </svg>
       ),
     },
-    {
-      key: 'sessions',
-      label: t('bots.sessionMonitor.title'),
-      icon: (
-        <svg
-          xmlns="http://www.w3.org/2000/svg"
-          viewBox="0 0 24 24"
-          fill="currentColor"
-        >
-          <path d="M2 22C2 17.5817 5.58172 14 10 14C14.4183 14 18 17.5817 18 22H16C16 18.6863 13.3137 16 10 16C6.68629 16 4 18.6863 4 22H2ZM10 13C6.685 13 4 10.315 4 7C4 3.685 6.685 1 10 1C13.315 1 16 3.685 16 7C16 10.315 13.315 13 10 13ZM10 11C12.21 11 14 9.21 14 7C14 4.79 12.21 3 10 3C7.79 3 6 4.79 6 7C6 9.21 7.79 11 10 11ZM18.2837 14.7028C21.0644 15.9561 23 18.752 23 22H21C21 19.564 19.5483 17.4671 17.4628 16.5271L18.2837 14.7028ZM17.5962 3.41321C19.5944 4.23703 21 6.20361 21 8.5C21 11.3702 18.8042 13.7252 16 13.9776V11.9646C17.6967 11.7222 19 10.264 19 8.5C19 7.11935 18.2016 5.92603 17.041 5.35635L17.5962 3.41321Z"></path>
-        </svg>
-      ),
-    },
   ];
 
   // eslint-disable-next-line @typescript-eslint/no-explicit-any
@@ -137,9 +122,6 @@ export default function BotDetailDialog({
             <main className="flex flex-1 flex-col h-[70vh]">
               <DialogHeader className="px-6 pt-6 pb-4 shrink-0">
                 <DialogTitle>{t('bots.createBot')}</DialogTitle>
-                <DialogDescription className="sr-only">
-                  {t('bots.createBot')}
-                </DialogDescription>
               </DialogHeader>
               <div className="flex-1 overflow-y-auto px-6 pb-6">
                 <BotForm
@@ -173,7 +155,7 @@ export default function BotDetailDialog({
   return (
     <>
       <Dialog open={open} onOpenChange={onOpenChange}>
-        <DialogContent className="overflow-hidden p-0 !max-w-[70rem] max-h-[75vh] flex">
+        <DialogContent className="overflow-hidden p-0 !max-w-[50rem] max-h-[75vh] flex">
           <SidebarProvider className="items-start w-full flex">
             <Sidebar
               collapsible="none"
@@ -207,25 +189,10 @@ export default function BotDetailDialog({
                 <DialogTitle>
                   {activeMenu === 'config'
                     ? t('bots.editBot')
-                    : activeMenu === 'logs'
-                      ? t('bots.botLogTitle')
-                      : t('bots.sessionMonitor.title')}
+                    : t('bots.botLogTitle')}
                 </DialogTitle>
-                <DialogDescription className="sr-only">
-                  {activeMenu === 'config'
-                    ? t('bots.editBot')
-                    : activeMenu === 'logs'
-                      ? t('bots.botLogTitle')
-                      : t('bots.sessionMonitor.title')}
-                </DialogDescription>
               </DialogHeader>
-              <div
-                className={
-                  activeMenu === 'sessions'
-                    ? 'flex-1 min-h-0'
-                    : 'flex-1 overflow-y-auto px-6 pb-6'
-                }
-              >
+              <div className="flex-1 overflow-y-auto px-6 pb-6">
                 {activeMenu === 'config' && (
                   <BotForm
                     initBotId={botId}
@@ -237,9 +204,6 @@ export default function BotDetailDialog({
                 {activeMenu === 'logs' && botId && (
                   <BotLogListComponent botId={botId} />
                 )}
-                {activeMenu === 'sessions' && botId && (
-                  <BotSessionMonitor botId={botId} />
-                )}
               </div>
               {activeMenu === 'config' && (
                 <DialogFooter className="px-6 py-4 border-t shrink-0">
@@ -274,9 +238,6 @@ export default function BotDetailDialog({
         <DialogContent>
           <DialogHeader>
             <DialogTitle>{t('common.confirmDelete')}</DialogTitle>
-            <DialogDescription className="sr-only">
-              {t('bots.deleteConfirmation')}
-            </DialogDescription>
           </DialogHeader>
           <div className="py-4">{t('bots.deleteConfirmation')}</div>
           <DialogFooter>

web/src/app/home/bots/components/bot-form/BotForm.tsx

@@ -124,12 +124,6 @@ export default function BotForm({
   const currentAdapter = form.watch('adapter');
   const currentAdapterConfig = form.watch('adapter_config');
 
-  // Serialize adapter_config to a stable string so it can be used as a
-  // useEffect dependency without triggering on every render.  form.watch()
-  // returns a new object reference each time, which would otherwise cause
-  // the filtering effect below to loop indefinitely.
-  const adapterConfigJson = JSON.stringify(currentAdapterConfig);
-
   useEffect(() => {
     setBotFormValues();
   }, []);
@@ -153,7 +147,7 @@ export default function BotForm({
       // For non-Lark adapters, show all fields
       setFilteredDynamicFormConfigList(dynamicFormConfigList);
     }
-  }, [currentAdapter, adapterConfigJson, dynamicFormConfigList]);
+  }, [currentAdapter, currentAdapterConfig, dynamicFormConfigList]);
 
   // 复制到剪贴板的辅助函数 - 使用页面上的真实input元素
   const copyToClipboard = () => {
@@ -319,7 +313,6 @@ export default function BotForm({
               required: item.required,
               type: parseDynamicFormItemType(item.type),
               options: item.options,
-              show_if: item.show_if,
             }),
         ),
       );

web/src/app/home/bots/components/bot-session/BotSessionMonitor.tsx

@@ -1,502 +0,0 @@
-'use client';
-
-import React, { useState, useEffect, useRef, useCallback } from 'react';
-import { useTranslation } from 'react-i18next';
-import { httpClient } from '@/app/infra/http/HttpClient';
-import { ScrollArea } from '@/components/ui/scroll-area';
-import { Button } from '@/components/ui/button';
-import { cn } from '@/lib/utils';
-import {
-  MessageChainComponent,
-  Plain,
-  At,
-  Image,
-  Quote,
-  Voice,
-} from '@/app/infra/entities/message';
-
-interface SessionInfo {
-  session_id: string;
-  bot_id: string;
-  bot_name: string;
-  pipeline_id: string;
-  pipeline_name: string;
-  message_count: number;
-  start_time: string;
-  last_activity: string;
-  is_active: boolean;
-  platform?: string | null;
-  user_id?: string | null;
-}
-
-interface SessionMessage {
-  id: string;
-  timestamp: string;
-  bot_id: string;
-  bot_name: string;
-  pipeline_id: string;
-  pipeline_name: string;
-  message_content: string;
-  session_id: string;
-  status: string;
-  level: string;
-  platform?: string | null;
-  user_id?: string | null;
-  runner_name?: string | null;
-  variables?: string | null;
-  role?: string | null;
-}
-
-interface BotSessionMonitorProps {
-  botId: string;
-}
-
-export default function BotSessionMonitor({ botId }: BotSessionMonitorProps) {
-  const { t } = useTranslation();
-  const [sessions, setSessions] = useState<SessionInfo[]>([]);
-  const [selectedSessionId, setSelectedSessionId] = useState<string | null>(
-    null,
-  );
-  const [messages, setMessages] = useState<SessionMessage[]>([]);
-  const [loadingSessions, setLoadingSessions] = useState(false);
-  const [loadingMessages, setLoadingMessages] = useState(false);
-  const messagesContainerRef = useRef<HTMLDivElement>(null);
-
-  const loadSessions = useCallback(async () => {
-    setLoadingSessions(true);
-    try {
-      const response = await httpClient.getBotSessions(botId);
-      setSessions(response.sessions ?? []);
-    } catch (error) {
-      console.error('Failed to load sessions:', error);
-    } finally {
-      setLoadingSessions(false);
-    }
-  }, [botId]);
-
-  const loadMessages = useCallback(async (sessionId: string) => {
-    setLoadingMessages(true);
-    try {
-      const response = await httpClient.getSessionMessages(sessionId);
-      const sorted = (response.messages ?? []).sort(
-        (a, b) =>
-          new Date(a.timestamp).getTime() - new Date(b.timestamp).getTime(),
-      );
-      setMessages(sorted);
-    } catch (error) {
-      console.error('Failed to load session messages:', error);
-    } finally {
-      setLoadingMessages(false);
-    }
-  }, []);
-
-  useEffect(() => {
-    loadSessions();
-  }, [loadSessions]);
-
-  useEffect(() => {
-    if (selectedSessionId) {
-      loadMessages(selectedSessionId);
-    } else {
-      setMessages([]);
-    }
-  }, [selectedSessionId, loadMessages]);
-
-  useEffect(() => {
-    const container = messagesContainerRef.current;
-    if (container) {
-      const viewport = container.querySelector(
-        '[data-radix-scroll-area-viewport]',
-      );
-      const scrollTarget = viewport || container;
-      scrollTarget.scrollTop = scrollTarget.scrollHeight;
-    }
-  }, [messages]);
-
-  const parseMessageChain = (content: string): MessageChainComponent[] => {
-    try {
-      const parsed = JSON.parse(content);
-      if (Array.isArray(parsed)) {
-        return parsed as MessageChainComponent[];
-      }
-    } catch {
-      // Not JSON, return as plain text
-    }
-    return [{ type: 'Plain', text: content } as Plain];
-  };
-
-  const isUserMessage = (msg: SessionMessage): boolean => {
-    if (msg.role === 'assistant') return false;
-    if (msg.role === 'user') return true;
-    return !msg.runner_name;
-  };
-
-  const renderMessageComponent = (
-    component: MessageChainComponent,
-    index: number,
-  ) => {
-    switch (component.type) {
-      case 'Plain':
-        return <span key={index}>{(component as Plain).text}</span>;
-
-      case 'At': {
-        const atComponent = component as At;
-        const displayName =
-          atComponent.display || atComponent.target?.toString() || '';
-        return (
-          <span
-            key={index}
-            className="inline-flex align-middle mx-0.5 px-1.5 py-0.5 bg-blue-200/60 dark:bg-blue-800/60 text-blue-700 dark:text-blue-300 rounded-md text-xs font-medium"
-          >
-            @{displayName}
-          </span>
-        );
-      }
-
-      case 'AtAll':
-        return (
-          <span
-            key={index}
-            className="inline-flex align-middle mx-0.5 px-1.5 py-0.5 bg-blue-200/60 dark:bg-blue-800/60 text-blue-700 dark:text-blue-300 rounded-md text-xs font-medium"
-          >
-            @All
-          </span>
-        );
-
-      case 'Image': {
-        const img = component as Image;
-        const imageUrl = img.url || (img.base64 ? img.base64 : '');
-        if (!imageUrl) {
-          return (
-            <span
-              key={index}
-              className="inline-flex items-center gap-1 text-muted-foreground text-xs"
-            >
-              [Image]
-            </span>
-          );
-        }
-        return (
-          <div key={index} className="my-1.5">
-            <img
-              src={imageUrl}
-              alt="Image"
-              className="max-w-full max-h-52 rounded-lg"
-            />
-          </div>
-        );
-      }
-
-      case 'Voice': {
-        const voice = component as Voice;
-        const voiceUrl = voice.url || (voice.base64 ? voice.base64 : '');
-        if (!voiceUrl) {
-          return (
-            <span
-              key={index}
-              className="inline-flex items-center gap-1 text-muted-foreground text-xs"
-            >
-              🎙 [Voice]
-            </span>
-          );
-        }
-        return (
-          <div key={index} className="my-1">
-            <audio controls src={voiceUrl} className="h-8 max-w-[220px]" />
-          </div>
-        );
-      }
-
-      case 'Quote': {
-        const quote = component as Quote;
-        return (
-          <div
-            key={index}
-            className="mb-2 pl-2.5 border-l-2 border-gray-300 dark:border-gray-600 opacity-80"
-          >
-            <div className="text-sm">
-              {quote.origin?.map((comp, idx) =>
-                renderMessageComponent(comp as MessageChainComponent, idx),
-              )}
-            </div>
-          </div>
-        );
-      }
-
-      case 'Source':
-        return null;
-
-      case 'File': {
-        const file = component as MessageChainComponent & { name?: string };
-        return (
-          <span key={index} className="text-muted-foreground text-xs">
-            📎 {file.name || 'File'}
-          </span>
-        );
-      }
-
-      default:
-        return (
-          <span key={index} className="text-muted-foreground text-xs">
-            [{component.type}]
-          </span>
-        );
-    }
-  };
-
-  const renderMessageContent = (msg: SessionMessage) => {
-    const chain = parseMessageChain(msg.message_content);
-    return (
-      <div className="whitespace-pre-wrap break-words">
-        {chain.map((component, index) =>
-          renderMessageComponent(component, index),
-        )}
-      </div>
-    );
-  };
-
-  const formatTime = (timestamp: string): string => {
-    if (!timestamp) return '';
-    const date = new Date(timestamp);
-    const hours = date.getHours().toString().padStart(2, '0');
-    const minutes = date.getMinutes().toString().padStart(2, '0');
-    return `${hours}:${minutes}`;
-  };
-
-  const formatRelativeTime = (timestamp: string): string => {
-    if (!timestamp) return '';
-    const date = new Date(timestamp);
-    const now = new Date();
-    const diffMs = now.getTime() - date.getTime();
-    const diffMins = Math.floor(diffMs / 60000);
-    const diffHours = Math.floor(diffMs / 3600000);
-    const diffDays = Math.floor(diffMs / 86400000);
-
-    if (diffMins < 1) return '<1m';
-    if (diffMins < 60) return `${diffMins}m`;
-    if (diffHours < 24) return `${diffHours}h`;
-    return `${diffDays}d`;
-  };
-
-  const selectedSession = sessions.find(
-    (s) => s.session_id === selectedSessionId,
-  );
-
-  return (
-    <div className="flex h-full min-h-0">
-      {/* Left Panel: Session List */}
-      <div className="w-64 flex-shrink-0 border-r flex flex-col min-h-0">
-        {/* Refresh Button */}
-        <div className="px-2 py-2 border-b shrink-0">
-          <Button
-            variant="ghost"
-            className="w-full h-9 text-sm text-muted-foreground"
-            onClick={loadSessions}
-            disabled={loadingSessions}
-          >
-            <svg
-              xmlns="http://www.w3.org/2000/svg"
-              viewBox="0 0 24 24"
-              fill="none"
-              stroke="currentColor"
-              strokeWidth={2}
-              strokeLinecap="round"
-              strokeLinejoin="round"
-              className={cn(
-                'w-3.5 h-3.5 mr-1.5',
-                loadingSessions && 'animate-spin',
-              )}
-            >
-              <path d="M21.5 2v6h-6M2.5 22v-6h6M2 11.5a10 10 0 0 1 18.8-4.3M22 12.5a10 10 0 0 1-18.8 4.2" />
-            </svg>
-            {t('bots.sessionMonitor.refresh')}
-          </Button>
-        </div>
-
-        {/* Session List */}
-        <ScrollArea className="flex-1 min-h-0">
-          {loadingSessions && sessions.length === 0 ? (
-            <div className="flex items-center justify-center py-12 text-sm text-muted-foreground">
-              {t('bots.sessionMonitor.loading')}
-            </div>
-          ) : sessions.length === 0 ? (
-            <div className="text-center text-muted-foreground py-12 text-sm">
-              {t('bots.sessionMonitor.noSessions')}
-            </div>
-          ) : (
-            <div className="p-1">
-              {sessions.map((session) => {
-                const isSelected = selectedSessionId === session.session_id;
-                return (
-                  <button
-                    key={session.session_id}
-                    className={cn(
-                      'w-full text-left px-3 py-2.5 rounded-md transition-colors',
-                      isSelected ? 'bg-accent' : 'hover:bg-accent/50',
-                    )}
-                    onClick={() => setSelectedSessionId(session.session_id)}
-                  >
-                    <div className="flex items-center justify-between mb-0.5">
-                      <span className="text-sm font-medium truncate mr-2">
-                        {session.user_id || session.session_id.slice(0, 12)}
-                      </span>
-                      <span className="text-[11px] text-muted-foreground tabular-nums flex-shrink-0">
-                        {formatRelativeTime(session.last_activity)}
-                      </span>
-                    </div>
-                    <div className="flex items-center gap-1.5 text-xs text-muted-foreground">
-                      {session.platform && (
-                        <span className="px-1 py-0.5 rounded bg-muted text-[10px]">
-                          {session.platform}
-                        </span>
-                      )}
-                      {session.is_active && (
-                        <span className="flex items-center gap-0.5 text-green-600 dark:text-green-400">
-                          <span className="w-1.5 h-1.5 rounded-full bg-green-500 inline-block" />
-                        </span>
-                      )}
-                      <span>{session.pipeline_name}</span>
-                    </div>
-                  </button>
-                );
-              })}
-            </div>
-          )}
-        </ScrollArea>
-      </div>
-
-      {/* Right Panel: Messages */}
-      <div className="flex-1 flex flex-col min-h-0 min-w-0">
-        {!selectedSessionId ? (
-          <div className="text-center text-muted-foreground py-12 text-lg flex-1 flex items-center justify-center">
-            {t('bots.sessionMonitor.selectSession')}
-          </div>
-        ) : (
-          <>
-            {/* Chat Header */}
-            <div className="px-6 py-3 border-b shrink-0 flex items-center justify-between">
-              <div className="min-w-0">
-                <div className="text-sm font-medium truncate">
-                  {selectedSession?.user_id || selectedSessionId.slice(0, 20)}
-                </div>
-                <div className="flex items-center gap-2 text-xs text-muted-foreground">
-                  {selectedSession?.platform && (
-                    <span>{selectedSession.platform}</span>
-                  )}
-                  {selectedSession?.pipeline_name && (
-                    <>
-                      {selectedSession?.platform && <span>·</span>}
-                      <span>{selectedSession.pipeline_name}</span>
-                    </>
-                  )}
-                  {selectedSession?.is_active && (
-                    <>
-                      <span>·</span>
-                      <span className="flex items-center gap-1 text-green-600 dark:text-green-400">
-                        <span className="w-1.5 h-1.5 rounded-full bg-green-500 inline-block" />
-                        Active
-                      </span>
-                    </>
-                  )}
-                </div>
-              </div>
-              <Button
-                variant="ghost"
-                size="icon"
-                className="w-8 h-8"
-                onClick={() => loadMessages(selectedSessionId)}
-                disabled={loadingMessages}
-              >
-                <svg
-                  xmlns="http://www.w3.org/2000/svg"
-                  viewBox="0 0 24 24"
-                  fill="none"
-                  stroke="currentColor"
-                  strokeWidth={2}
-                  strokeLinecap="round"
-                  strokeLinejoin="round"
-                  className={cn('w-4 h-4', loadingMessages && 'animate-spin')}
-                >
-                  <path d="M21.5 2v6h-6M2.5 22v-6h6M2 11.5a10 10 0 0 1 18.8-4.3M22 12.5a10 10 0 0 1-18.8 4.2" />
-                </svg>
-              </Button>
-            </div>
-
-            {/* Messages Area — matches DebugDialog style */}
-            <ScrollArea
-              ref={messagesContainerRef}
-              className="flex-1 p-6 overflow-y-auto min-h-0 bg-white dark:bg-black"
-            >
-              <div className="space-y-6">
-                {loadingMessages ? (
-                  <div className="text-center text-muted-foreground py-12 text-lg">
-                    {t('bots.sessionMonitor.loading')}
-                  </div>
-                ) : messages.length === 0 ? (
-                  <div className="text-center text-muted-foreground py-12 text-lg">
-                    {t('bots.sessionMonitor.noMessages')}
-                  </div>
-                ) : (
-                  messages.map((msg) => {
-                    const isUser = isUserMessage(msg);
-                    return (
-                      <div
-                        key={msg.id}
-                        className={cn(
-                          'flex',
-                          isUser ? 'justify-end' : 'justify-start',
-                        )}
-                      >
-                        <div
-                          className={cn(
-                            'max-w-3xl px-5 py-3 rounded-2xl',
-                            isUser
-                              ? 'bg-blue-100 dark:bg-blue-900 text-gray-900 dark:text-gray-100 rounded-br-none'
-                              : 'bg-gray-100 dark:bg-gray-800 text-gray-900 dark:text-gray-100 rounded-bl-none',
-                            msg.status === 'error' && 'ring-1 ring-red-400/50',
-                          )}
-                        >
-                          {renderMessageContent(msg)}
-                          {/* Role label + timestamp inside bubble, matching DebugDialog */}
-                          <div
-                            className={cn(
-                              'text-xs mt-2 flex items-center gap-2',
-                              isUser
-                                ? 'text-gray-600 dark:text-gray-300'
-                                : 'text-gray-500 dark:text-gray-400',
-                            )}
-                          >
-                            <span>
-                              {isUser
-                                ? t('bots.sessionMonitor.userMessage', {
-                                    defaultValue: 'User',
-                                  })
-                                : t('bots.sessionMonitor.botMessage', {
-                                    defaultValue: 'Assistant',
-                                  })}
-                            </span>
-                            <span className="tabular-nums">
-                              {formatTime(msg.timestamp)}
-                            </span>
-                            {msg.status === 'error' && (
-                              <span className="text-red-500">error</span>
-                            )}
-                            {msg.runner_name && (
-                              <span className="opacity-70">
-                                {msg.runner_name}
-                              </span>
-                            )}
-                          </div>
-                        </div>
-                      </div>
-                    );
-                  })
-                )}
-              </div>
-            </ScrollArea>
-          </>
-        )}
-      </div>
-    </div>
-  );
-}

web/src/app/home/components/dynamic-form/DynamicFormComponent.tsx

@@ -11,28 +11,22 @@ import {
   FormMessage,
 } from '@/components/ui/form';
 import DynamicFormItemComponent from '@/app/home/components/dynamic-form/DynamicFormItemComponent';
-import { useCallback, useEffect, useRef } from 'react';
+import { useEffect, useRef } from 'react';
 import { extractI18nObject } from '@/i18n/I18nProvider';
-import { useTranslation } from 'react-i18next';
 
 export default function DynamicFormComponent({
   itemConfigList,
   onSubmit,
   initialValues,
   onFileUploaded,
-  isEditing,
-  externalDependentValues,
 }: {
   itemConfigList: IDynamicFormItemSchema[];
   onSubmit?: (val: object) => unknown;
   initialValues?: Record<string, object>;
   onFileUploaded?: (fileKey: string) => void;
-  isEditing?: boolean;
-  externalDependentValues?: Record<string, unknown>;
 }) {
   const isInitialMount = useRef(true);
   const previousInitialValues = useRef(initialValues);
-  const { t } = useTranslation();
 
   // 根据 itemConfigList 动态生成 zod schema
   const formSchema = z.object(
@@ -61,9 +55,6 @@ export default function DynamicFormComponent({
           case 'llm-model-selector':
             fieldSchema = z.string();
             break;
-          case 'embedding-model-selector':
-            fieldSchema = z.string();
-            break;
           case 'knowledge-base-selector':
             fieldSchema = z.string();
             break;
@@ -90,9 +81,7 @@ export default function DynamicFormComponent({
           (fieldSchema instanceof z.ZodString ||
             fieldSchema instanceof z.ZodArray)
         ) {
-          fieldSchema = fieldSchema.min(1, {
-            message: t('common.fieldRequired'),
-          });
+          fieldSchema = fieldSchema.min(1, { message: '此字段为必填项' });
         }
 
         return {
@@ -152,120 +141,54 @@ export default function DynamicFormComponent({
     }
   }, [initialValues, form, itemConfigList]);
 
-  // Get reactive form values for conditional rendering
-  const watchedValues = form.watch();
-
-  // Stable ref for onSubmit to avoid re-triggering the effect when the
-  // parent passes a new closure on every render.
-  const onSubmitRef = useRef(onSubmit);
-  onSubmitRef.current = onSubmit;
-
-  // Track the last emitted values to avoid emitting identical snapshots,
-  // which would cause the parent to call setValue with an equivalent object,
-  // triggering a re-render loop.
-  const lastEmittedRef = useRef<string>('');
-
-  const emitValues = useCallback(() => {
-    const formValues = form.getValues();
-    const finalValues = itemConfigList.reduce(
-      (acc, item) => {
-        acc[item.name] = formValues[item.name] ?? item.default;
-        return acc;
-      },
-      {} as Record<string, object>,
-    );
-    const serialized = JSON.stringify(finalValues);
-    if (serialized !== lastEmittedRef.current) {
-      lastEmittedRef.current = serialized;
-      onSubmitRef.current?.(finalValues);
-    }
-  }, [form, itemConfigList]);
-
   // 监听表单值变化
   useEffect(() => {
-    // Emit initial form values immediately so the parent always has a valid snapshot,
-    // even if the user saves without modifying any field.
-    // form.watch(callback) only fires on subsequent changes, not on mount.
-    emitValues();
-
     const subscription = form.watch(() => {
-      emitValues();
+      // 获取完整的表单值，确保包含所有默认值
+      const formValues = form.getValues();
+      const finalValues = itemConfigList.reduce(
+        (acc, item) => {
+          acc[item.name] = formValues[item.name] ?? item.default;
+          return acc;
+        },
+        {} as Record<string, object>,
+      );
+      onSubmit?.(finalValues);
     });
     return () => subscription.unsubscribe();
-  }, [form, itemConfigList, emitValues]);
+  }, [form, onSubmit, itemConfigList]);
 
   return (
     <Form {...form}>
       <div className="space-y-4">
-        {itemConfigList.map((config) => {
-          if (config.show_if) {
-            const dependValue =
-              watchedValues[
-                config.show_if.field as keyof typeof watchedValues
-              ] !== undefined
-                ? watchedValues[
-                    config.show_if.field as keyof typeof watchedValues
-                  ]
-                : externalDependentValues?.[config.show_if.field];
-
-            if (
-              config.show_if.operator === 'eq' &&
-              dependValue !== config.show_if.value
-            ) {
-              return null;
-            }
-            if (
-              config.show_if.operator === 'neq' &&
-              dependValue === config.show_if.value
-            ) {
-              return null;
-            }
-            if (
-              config.show_if.operator === 'in' &&
-              Array.isArray(config.show_if.value) &&
-              !config.show_if.value.includes(dependValue)
-            ) {
-              return null;
-            }
-          }
-
-          // All fields are disabled when editing (creation_settings are immutable)
-          const isFieldDisabled = !!isEditing;
-          return (
-            <FormField
-              key={config.id}
-              control={form.control}
-              name={config.name as keyof FormValues}
-              render={({ field }) => (
-                <FormItem>
-                  <FormLabel>
-                    {extractI18nObject(config.label)}{' '}
-                    {config.required && <span className="text-red-500">*</span>}
-                  </FormLabel>
-                  <FormControl>
-                    <div
-                      className={
-                        isFieldDisabled ? 'pointer-events-none opacity-60' : ''
-                      }
-                    >
-                      <DynamicFormItemComponent
-                        config={config}
-                        field={field}
-                        onFileUploaded={onFileUploaded}
-                      />
-                    </div>
-                  </FormControl>
-                  {config.description && (
-                    <p className="text-sm text-muted-foreground">
-                      {extractI18nObject(config.description)}
-                    </p>
-                  )}
-                  <FormMessage />
-                </FormItem>
-              )}
-            />
-          );
-        })}
+        {itemConfigList.map((config) => (
+          <FormField
+            key={config.id}
+            control={form.control}
+            name={config.name as keyof FormValues}
+            render={({ field }) => (
+              <FormItem>
+                <FormLabel>
+                  {extractI18nObject(config.label)}{' '}
+                  {config.required && <span className="text-red-500">*</span>}
+                </FormLabel>
+                <FormControl>
+                  <DynamicFormItemComponent
+                    config={config}
+                    field={field}
+                    onFileUploaded={onFileUploaded}
+                  />
+                </FormControl>
+                {config.description && (
+                  <p className="text-sm text-muted-foreground">
+                    {extractI18nObject(config.description)}
+                  </p>
+                )}
+                <FormMessage />
+              </FormItem>
+            )}
+          />
+        ))}
       </div>
     </Form>
   );

web/src/app/home/components/dynamic-form/DynamicFormItemComponent.tsx

@@ -22,7 +22,8 @@ import {
   LLMModel,
   Bot,
   KnowledgeBase,
-  EmbeddingModel,
+  ExternalKnowledgeBase,
+  ApiRespPluginSystemStatus,
 } from '@/app/infra/entities/api';
 import { toast } from 'sonner';
 import { useTranslation } from 'react-i18next';
@@ -50,12 +51,16 @@ export default function DynamicFormItemComponent({
   onFileUploaded?: (fileKey: string) => void;
 }) {
   const [llmModels, setLlmModels] = useState<LLMModel[]>([]);
-  const [embeddingModels, setEmbeddingModels] = useState<EmbeddingModel[]>([]);
   const [knowledgeBases, setKnowledgeBases] = useState<KnowledgeBase[]>([]);
+  const [externalKnowledgeBases, setExternalKnowledgeBases] = useState<
+    ExternalKnowledgeBase[]
+  >([]);
   const [bots, setBots] = useState<Bot[]>([]);
   const [uploading, setUploading] = useState<boolean>(false);
   const [kbDialogOpen, setKbDialogOpen] = useState(false);
   const [tempSelectedKBIds, setTempSelectedKBIds] = useState<string[]>([]);
+  const [pluginSystemStatus, setPluginSystemStatus] =
+    useState<ApiRespPluginSystemStatus | null>(null);
   const { t } = useTranslation();
 
   const handleFileUpload = async (file: File): Promise<IFileConfig | null> => {
@@ -106,20 +111,7 @@ export default function DynamicFormItemComponent({
           setLlmModels(models);
         })
         .catch((err) => {
-          toast.error(t('models.getModelListError') + err.msg);
-        });
-    }
-  }, [config.type]);
-
-  useEffect(() => {
-    if (config.type === DynamicFormItemType.EMBEDDING_MODEL_SELECTOR) {
-      httpClient
-        .getProviderEmbeddingModels()
-        .then((resp) => {
-          setEmbeddingModels(resp.models);
-        })
-        .catch((err) => {
-          toast.error(t('embedding.getModelListError') + err.msg);
+          toast.error('Failed to get LLM model list: ' + err.msg);
         });
     }
   }, [config.type]);
@@ -135,11 +127,39 @@ export default function DynamicFormItemComponent({
           setKnowledgeBases(resp.bases);
         })
         .catch((err) => {
-          toast.error(t('knowledge.getKnowledgeBaseListError') + err.msg);
+          toast.error('Failed to get knowledge base list: ' + err.msg);
+        });
+
+      // Fetch plugin system status
+      httpClient
+        .getPluginSystemStatus()
+        .then((status) => {
+          setPluginSystemStatus(status);
+        })
+        .catch((err) => {
+          console.error('Failed to get plugin system status:', err);
         });
     }
   }, [config.type]);
 
+  useEffect(() => {
+    if (
+      (config.type === DynamicFormItemType.KNOWLEDGE_BASE_SELECTOR ||
+        config.type === DynamicFormItemType.KNOWLEDGE_BASE_MULTI_SELECTOR) &&
+      pluginSystemStatus?.is_enable &&
+      pluginSystemStatus?.is_connected
+    ) {
+      httpClient
+        .getExternalKnowledgeBases()
+        .then((resp) => {
+          setExternalKnowledgeBases(resp.bases);
+        })
+        .catch((err) => {
+          console.error('Failed to get external knowledge base list:', err);
+        });
+    }
+  }, [config.type, pluginSystemStatus]);
+
   useEffect(() => {
     if (config.type === DynamicFormItemType.BOT_SELECTOR) {
       httpClient
@@ -148,7 +168,7 @@ export default function DynamicFormItemComponent({
           setBots(resp.bots);
         })
         .catch((err) => {
-          toast.error(t('bots.getBotListError') + err.msg);
+          toast.error('Failed to get bot list: ' + err.msg);
         });
     }
   }, [config.type]);
@@ -171,12 +191,7 @@ export default function DynamicFormItemComponent({
       return <Textarea {...field} className="min-h-[120px]" />;
 
     case DynamicFormItemType.BOOLEAN:
-      return (
-        <Switch
-          checked={field.value ?? false}
-          onCheckedChange={field.onChange}
-        />
-      );
+      return <Switch checked={field.value} onCheckedChange={field.onChange} />;
 
     case DynamicFormItemType.STRING_ARRAY:
       return (
@@ -227,7 +242,7 @@ export default function DynamicFormItemComponent({
 
     case DynamicFormItemType.SELECT:
       return (
-        <Select value={field.value ?? ''} onValueChange={field.onChange}>
+        <Select value={field.value} onValueChange={field.onChange}>
           <SelectTrigger className="bg-[#ffffff] dark:bg-[#2a2a2e]">
             <SelectValue placeholder={t('common.select')} />
           </SelectTrigger>
@@ -284,56 +299,7 @@ export default function DynamicFormItemComponent({
         </Select>
       );
 
-    case DynamicFormItemType.EMBEDDING_MODEL_SELECTOR:
-      // Group embedding models by provider
-      const groupedEmbeddingModels = embeddingModels.reduce(
-        (acc, model) => {
-          const providerName = model.provider?.name || 'Unknown';
-          if (!acc[providerName]) acc[providerName] = [];
-          acc[providerName].push(model);
-          return acc;
-        },
-        {} as Record<string, EmbeddingModel[]>,
-      );
-
-      return (
-        <Select value={field.value} onValueChange={field.onChange}>
-          <SelectTrigger className="bg-[#ffffff] dark:bg-[#2a2a2e]">
-            <SelectValue placeholder={t('knowledge.selectEmbeddingModel')} />
-          </SelectTrigger>
-          <SelectContent>
-            {Object.entries(groupedEmbeddingModels).map(
-              ([providerName, models]) => (
-                <SelectGroup key={providerName}>
-                  <SelectLabel>{providerName}</SelectLabel>
-                  {models.map((model) => (
-                    <SelectItem key={model.uuid} value={model.uuid}>
-                      {model.name}
-                    </SelectItem>
-                  ))}
-                </SelectGroup>
-              ),
-            )}
-          </SelectContent>
-        </Select>
-      );
-
     case DynamicFormItemType.KNOWLEDGE_BASE_SELECTOR:
-      // Group KBs by Knowledge Engine name
-      const kbsByEngine = knowledgeBases.reduce(
-        (acc, kb) => {
-          const engineName = kb.knowledge_engine?.name
-            ? extractI18nObject(kb.knowledge_engine.name)
-            : t('knowledge.unknownEngine');
-          if (!acc[engineName]) {
-            acc[engineName] = [];
-          }
-          acc[engineName].push(kb);
-          return acc;
-        },
-        {} as Record<string, typeof knowledgeBases>,
-      );
-
       return (
         <Select value={field.value} onValueChange={field.onChange}>
           <SelectTrigger className="bg-[#ffffff] dark:bg-[#2a2a2e]">
@@ -344,45 +310,53 @@ export default function DynamicFormItemComponent({
               <SelectItem value="__none__">{t('knowledge.empty')}</SelectItem>
             </SelectGroup>
 
-            {Object.entries(kbsByEngine).map(([engineName, kbs]) => (
-              <SelectGroup key={engineName}>
-                <SelectLabel>{engineName}</SelectLabel>
-                {kbs.map((base) => (
+            {knowledgeBases.length > 0 && (
+              <SelectGroup>
+                <SelectLabel>{t('knowledge.builtIn')}</SelectLabel>
+                {knowledgeBases.map((base) => (
                   <SelectItem key={base.uuid} value={base.uuid ?? ''}>
                     {base.name}
                   </SelectItem>
                 ))}
               </SelectGroup>
-            ))}
+            )}
+
+            {externalKnowledgeBases.length > 0 && (
+              <SelectGroup>
+                <SelectLabel>{t('knowledge.external')}</SelectLabel>
+                {externalKnowledgeBases.map((base) => (
+                  <SelectItem key={base.uuid} value={base.uuid ?? ''}>
+                    <div className="flex items-center gap-2">
+                      <img
+                        src={httpClient.getPluginIconURL(
+                          base.plugin_author,
+                          base.plugin_name,
+                        )}
+                        alt="plugin icon"
+                        className="w-4 h-4 rounded-[8%] flex-shrink-0"
+                      />
+                      <span>{base.name}</span>
+                    </div>
+                  </SelectItem>
+                ))}
+              </SelectGroup>
+            )}
           </SelectContent>
         </Select>
       );
 
     case DynamicFormItemType.KNOWLEDGE_BASE_MULTI_SELECTOR:
-      // Group KBs by Knowledge Engine name for multi-selector
-      const multiKbsByEngine = knowledgeBases.reduce(
-        (acc, kb) => {
-          const engineName = kb.knowledge_engine?.name
-            ? extractI18nObject(kb.knowledge_engine.name)
-            : t('knowledge.unknownEngine');
-          if (!acc[engineName]) {
-            acc[engineName] = [];
-          }
-          acc[engineName].push(kb);
-          return acc;
-        },
-        {} as Record<string, typeof knowledgeBases>,
-      );
-
       return (
         <>
           <div className="space-y-2">
             {field.value && field.value.length > 0 ? (
               <div className="space-y-2">
                 {field.value.map((kbId: string) => {
-                  const currentKb = knowledgeBases.find(
+                  const kb = knowledgeBases.find((base) => base.uuid === kbId);
+                  const externalKb = externalKnowledgeBases.find(
                     (base) => base.uuid === kbId,
                   );
+                  const currentKb = kb || externalKb;
                   if (!currentKb) return null;
 
                   return (
@@ -391,17 +365,18 @@ export default function DynamicFormItemComponent({
                       className="flex items-center justify-between rounded-lg border p-3 hover:bg-accent"
                     >
                       <div className="flex items-center gap-2 flex-1">
-                        <div className="flex-1 min-w-0">
-                          <div className="font-medium flex items-center gap-2">
-                            {currentKb.name}
-                            {currentKb.knowledge_engine?.name && (
-                              <span className="text-xs px-2 py-0.5 rounded-full bg-purple-100 text-purple-700 dark:bg-purple-900 dark:text-purple-300">
-                                {extractI18nObject(
-                                  currentKb.knowledge_engine.name,
-                                )}
-                              </span>
+                        {externalKb && (
+                          <img
+                            src={httpClient.getPluginIconURL(
+                              externalKb.plugin_author,
+                              externalKb.plugin_name,
                             )}
-                          </div>
+                            alt="plugin icon"
+                            className="w-8 h-8 rounded-[8%] flex-shrink-0"
+                          />
+                        )}
+                        <div className="flex-1 min-w-0">
+                          <div className="font-medium">{currentKb.name}</div>
                           {currentKb.description && (
                             <div className="text-sm text-muted-foreground">
                               {currentKb.description}
@@ -455,12 +430,13 @@ export default function DynamicFormItemComponent({
                 <DialogTitle>{t('knowledge.selectKnowledgeBases')}</DialogTitle>
               </DialogHeader>
               <div className="flex-1 overflow-y-auto space-y-4 pr-2">
-                {Object.entries(multiKbsByEngine).map(([engineName, kbs]) => (
-                  <div key={engineName} className="space-y-2">
+                {/* Built-in Knowledge Bases */}
+                {knowledgeBases.length > 0 && (
+                  <div className="space-y-2">
                     <div className="text-sm font-semibold text-muted-foreground px-2">
-                      {engineName}
+                      {t('knowledge.builtIn')}
                     </div>
-                    {kbs.map((base) => {
+                    {knowledgeBases.map((base) => {
                       const isSelected = tempSelectedKBIds.includes(
                         base.uuid ?? '',
                       );
@@ -493,7 +469,56 @@ export default function DynamicFormItemComponent({
                       );
                     })}
                   </div>
-                ))}
+                )}
+
+                {/* External Knowledge Bases */}
+                {externalKnowledgeBases.length > 0 && (
+                  <div className="space-y-2">
+                    <div className="text-sm font-semibold text-muted-foreground px-2">
+                      {t('knowledge.external')}
+                    </div>
+                    {externalKnowledgeBases.map((base) => {
+                      const isSelected = tempSelectedKBIds.includes(
+                        base.uuid ?? '',
+                      );
+                      return (
+                        <div
+                          key={base.uuid}
+                          className="flex items-center gap-3 rounded-lg border p-3 hover:bg-accent cursor-pointer"
+                          onClick={() => {
+                            const kbId = base.uuid ?? '';
+                            setTempSelectedKBIds((prev) =>
+                              prev.includes(kbId)
+                                ? prev.filter((id) => id !== kbId)
+                                : [...prev, kbId],
+                            );
+                          }}
+                        >
+                          <Checkbox
+                            checked={isSelected}
+                            aria-label={`Select ${base.name}`}
+                          />
+                          <img
+                            src={httpClient.getPluginIconURL(
+                              base.plugin_author,
+                              base.plugin_name,
+                            )}
+                            alt="plugin icon"
+                            className="w-8 h-8 rounded-[8%] flex-shrink-0"
+                          />
+                          <div className="flex-1">
+                            <div className="font-medium">{base.name}</div>
+                            {base.description && (
+                              <div className="text-sm text-muted-foreground">
+                                {base.description}
+                              </div>
+                            )}
+                          </div>
+                        </div>
+                      );
+                    })}
+                  </div>
+                )}
               </div>
               <DialogFooter>
                 <Button

web/src/app/home/components/dynamic-form/DynamicFormItemConfig.ts

@@ -2,7 +2,6 @@ import {
   IDynamicFormItemSchema,
   DynamicFormItemType,
   IDynamicFormItemOption,
-  IShowIfCondition,
 } from '@/app/infra/entities/form/dynamic';
 import { I18nObject } from '@/app/infra/entities/common';
 
@@ -15,7 +14,6 @@ export class DynamicFormItemConfig implements IDynamicFormItemSchema {
   type: DynamicFormItemType;
   description?: I18nObject;
   options?: IDynamicFormItemOption[];
-  show_if?: IShowIfCondition;
 
   constructor(params: IDynamicFormItemSchema) {
     this.id = params.id;
@@ -26,7 +24,6 @@ export class DynamicFormItemConfig implements IDynamicFormItemSchema {
     this.type = params.type;
     this.description = params.description;
     this.options = params.options;
-    this.show_if = params.show_if;
   }
 }
 

web/src/app/home/components/home-sidebar/HomeSidebar.tsx

@@ -422,12 +422,12 @@ export default function HomeSidebar({
                   const language = localStorage.getItem('langbot_language');
                   if (language === 'zh-Hans' || language === 'zh-Hant') {
                     window.open(
-                      'https://docs.langbot.app/zh/insight/guide',
+                      'https://docs.langbot.app/zh/insight/guide.html',
                       '_blank',
                     );
                   } else {
                     window.open(
-                      'https://docs.langbot.app/en/insight/guide',
+                      'https://docs.langbot.app/en/insight/guide.html',
                       '_blank',
                     );
                   }

web/src/app/home/components/home-sidebar/sidbarConfigList.tsx

@@ -23,9 +23,9 @@ export const sidebarConfigList = [
     route: '/home/bots',
     description: t('bots.description'),
     helpLink: {
-      en_US: 'https://docs.langbot.app/en/usage/platforms/readme',
-      zh_Hans: 'https://docs.langbot.app/zh/usage/platforms/readme',
-      ja_JP: 'https://docs.langbot.app/ja/usage/platforms/readme',
+      en_US: 'https://docs.langbot.app/en/usage/platforms/readme.html',
+      zh_Hans: 'https://docs.langbot.app/zh/usage/platforms/readme.html',
+      ja_JP: 'https://docs.langbot.app/ja/usage/platforms/readme.html',
     },
   }),
   new SidebarChildVO({
@@ -44,9 +44,9 @@ export const sidebarConfigList = [
     route: '/home/pipelines',
     description: t('pipelines.description'),
     helpLink: {
-      en_US: 'https://docs.langbot.app/en/usage/pipelines/readme',
-      zh_Hans: 'https://docs.langbot.app/zh/usage/pipelines/readme',
-      ja_JP: 'https://docs.langbot.app/ja/usage/pipelines/readme',
+      en_US: 'https://docs.langbot.app/en/usage/pipelines/readme.html',
+      zh_Hans: 'https://docs.langbot.app/zh/usage/pipelines/readme.html',
+      ja_JP: 'https://docs.langbot.app/ja/usage/pipelines/readme.html',
     },
   }),
   new SidebarChildVO({
@@ -65,8 +65,8 @@ export const sidebarConfigList = [
     route: '/home/monitoring',
     description: t('monitoring.description'),
     helpLink: {
-      en_US: '',
-      zh_Hans: '',
+      en_US: 'https://docs.langbot.app/en/features/monitoring.html',
+      zh_Hans: 'https://docs.langbot.app/zh/features/monitoring.html',
     },
   }),
   new SidebarChildVO({
@@ -84,9 +84,9 @@ export const sidebarConfigList = [
     route: '/home/knowledge',
     description: t('knowledge.description'),
     helpLink: {
-      en_US: 'https://docs.langbot.app/en/usage/knowledge/readme',
-      zh_Hans: 'https://docs.langbot.app/zh/usage/knowledge/readme',
-      ja_JP: 'https://docs.langbot.app/ja/usage/knowledge/readme',
+      en_US: 'https://docs.langbot.app/en/usage/knowledge/readme.html',
+      zh_Hans: 'https://docs.langbot.app/zh/usage/knowledge/readme.html',
+      ja_JP: 'https://docs.langbot.app/ja/usage/knowledge/readme.html',
     },
   }),
   new SidebarChildVO({
@@ -105,9 +105,9 @@ export const sidebarConfigList = [
     route: '/home/plugins',
     description: t('plugins.description'),
     helpLink: {
-      en_US: 'https://docs.langbot.app/en/usage/plugin/plugin-intro',
-      zh_Hans: 'https://docs.langbot.app/zh/usage/plugin/plugin-intro',
-      ja_JP: 'https://docs.langbot.app/ja/usage/plugin/plugin-intro',
+      en_US: 'https://docs.langbot.app/en/usage/plugin/plugin-intro.html',
+      zh_Hans: 'https://docs.langbot.app/zh/usage/plugin/plugin-intro.html',
+      ja_JP: 'https://docs.langbot.app/ja/usage/plugin/plugin-intro.html',
     },
   }),
 ];

web/src/app/home/components/new-version-dialog/NewVersionDialog.tsx

@@ -4,7 +4,6 @@ import { useTranslation } from 'react-i18next';
 import ReactMarkdown from 'react-markdown';
 import remarkGfm from 'remark-gfm';
 import rehypeRaw from 'rehype-raw';
-import rehypeSanitize from 'rehype-sanitize';
 import rehypeHighlight from 'rehype-highlight';
 import i18n from 'i18next';
 import { ExternalLink } from 'lucide-react';
@@ -36,11 +35,11 @@ export default function NewVersionDialog({
   const getUpdateDocsUrl = () => {
     const language = i18n.language;
     if (language === 'zh-Hans' || language === 'zh-Hant') {
-      return 'https://docs.langbot.app/zh/deploy/update';
+      return 'https://docs.langbot.app/zh/deploy/update.html';
     } else if (language === 'ja-JP') {
-      return 'https://docs.langbot.app/ja/deploy/update';
+      return 'https://docs.langbot.app/ja/deploy/update.html';
     } else {
-      return 'https://docs.langbot.app/en/deploy/update';
+      return 'https://docs.langbot.app/en/deploy/update.html';
     }
   };
 
@@ -63,7 +62,7 @@ export default function NewVersionDialog({
           <div className="markdown-body max-w-none text-sm">
             <ReactMarkdown
               remarkPlugins={[remarkGfm]}
-              rehypePlugins={[rehypeRaw, rehypeSanitize, rehypeHighlight]}
+              rehypePlugins={[rehypeRaw, rehypeHighlight]}
               components={{
                 ul: ({ children }) => <ul className="list-disc">{children}</ul>,
                 ol: ({ children }) => (

web/src/app/home/components/survey/SurveyWidget.tsx

@@ -1,391 +0,0 @@
-'use client';
-
-import React, { useState, useEffect, useCallback } from 'react';
-import { httpClient } from '@/app/infra/http/HttpClient';
-import type {
-  SurveyQuestion,
-  SurveyOption,
-} from '@/app/infra/http/BackendClient';
-import { X, ChevronRight, ChevronLeft, MessageSquare } from 'lucide-react';
-import { Button } from '@/components/ui/button';
-import { Checkbox } from '@/components/ui/checkbox';
-
-/**
- * Get i18n text from a Record<string, string> based on browser locale.
- */
-function getI18nText(obj?: Record<string, string> | null): string {
-  if (!obj) return '';
-  const lang = typeof navigator !== 'undefined' ? navigator.language : 'en';
-  if (lang.startsWith('zh'))
-    return obj['zh_Hans'] || obj['en_US'] || Object.values(obj)[0] || '';
-  if (lang.startsWith('ja'))
-    return obj['ja_JP'] || obj['en_US'] || Object.values(obj)[0] || '';
-  return obj['en_US'] || Object.values(obj)[0] || '';
-}
-
-interface SurveyData {
-  survey_id: string;
-  version: number;
-  title: Record<string, string>;
-  description: Record<string, string>;
-  questions: SurveyQuestion[];
-}
-
-export default function SurveyWidget() {
-  const [survey, setSurvey] = useState<SurveyData | null>(null);
-  const [visible, setVisible] = useState(false);
-  const [currentStep, setCurrentStep] = useState(0);
-  const [answers, setAnswers] = useState<Record<string, unknown>>({});
-  const [otherInputs, setOtherInputs] = useState<Record<string, string>>({});
-  const [submitted, setSubmitted] = useState(false);
-  const [collapsed, setCollapsed] = useState(false);
-
-  // Poll for pending survey
-  useEffect(() => {
-    let timer: NodeJS.Timeout;
-    let cancelled = false;
-
-    const checkSurvey = async () => {
-      try {
-        const resp = await httpClient.getSurveyPending();
-        if (!cancelled && resp?.survey) {
-          setSurvey(resp.survey);
-          setVisible(true);
-        }
-      } catch {
-        // Silently ignore
-      }
-    };
-
-    // Check after 5 seconds, then every 60 seconds
-    timer = setTimeout(() => {
-      checkSurvey();
-      timer = setInterval(checkSurvey, 60000) as unknown as NodeJS.Timeout;
-    }, 5000);
-
-    return () => {
-      cancelled = true;
-      clearTimeout(timer);
-      clearInterval(timer);
-    };
-  }, []);
-
-  const handleDismiss = useCallback(async () => {
-    if (survey) {
-      try {
-        await httpClient.dismissSurvey(survey.survey_id);
-      } catch {
-        /* ignore */
-      }
-    }
-    setVisible(false);
-  }, [survey]);
-
-  const handleSubmit = useCallback(async () => {
-    if (!survey) return;
-
-    // Merge "other" text inputs into answers
-    const finalAnswers = { ...answers };
-    for (const [qId, text] of Object.entries(otherInputs)) {
-      if (text.trim()) {
-        const current = finalAnswers[qId];
-        if (Array.isArray(current)) {
-          // Replace 'other' with the text
-          finalAnswers[qId] = (current as string[]).map((v) =>
-            v === 'other' ? `other:${text}` : v,
-          );
-        } else if (current === 'other') {
-          finalAnswers[qId] = `other:${text}`;
-        }
-      }
-    }
-
-    try {
-      await httpClient.submitSurveyResponse(
-        survey.survey_id,
-        finalAnswers,
-        true,
-      );
-      setSubmitted(true);
-      setTimeout(() => setVisible(false), 2000);
-    } catch {
-      /* ignore */
-    }
-  }, [survey, answers, otherInputs]);
-
-  const setAnswer = useCallback((qId: string, value: unknown) => {
-    setAnswers((prev) => ({ ...prev, [qId]: value }));
-  }, []);
-
-  if (!visible || !survey) return null;
-
-  const questions = survey.questions || [];
-  const totalSteps = questions.length;
-  const currentQuestion = questions[currentStep];
-
-  if (submitted) {
-    return (
-      <div className="fixed bottom-6 right-6 z-50 w-80 bg-card border rounded-xl shadow-lg p-6 animate-in slide-in-from-bottom-4">
-        <div className="text-center">
-          <div className="text-3xl mb-2">🎉</div>
-          <p className="text-sm font-medium">
-            {getI18nText({
-              zh_Hans: '感谢你的反馈！',
-              en_US: 'Thanks for your feedback!',
-            })}
-          </p>
-        </div>
-      </div>
-    );
-  }
-
-  if (collapsed) {
-    return (
-      <button
-        onClick={() => setCollapsed(false)}
-        className="fixed bottom-6 right-6 z-50 w-12 h-12 bg-primary text-primary-foreground rounded-full shadow-lg flex items-center justify-center hover:scale-105 transition-transform"
-      >
-        <MessageSquare className="w-5 h-5" />
-      </button>
-    );
-  }
-
-  return (
-    <div className="fixed bottom-6 right-6 z-50 w-[340px] bg-card border rounded-xl shadow-lg animate-in slide-in-from-bottom-4">
-      {/* Header */}
-      <div className="flex items-center justify-between px-4 py-3 border-b">
-        <div className="flex items-center gap-2">
-          <MessageSquare className="w-4 h-4 text-primary" />
-          <span className="text-sm font-medium">
-            {getI18nText(survey.title)}
-          </span>
-        </div>
-        <div className="flex items-center gap-1">
-          <button
-            onClick={() => setCollapsed(true)}
-            className="p-1 hover:bg-accent rounded"
-          >
-            <ChevronRight className="w-4 h-4 text-muted-foreground" />
-          </button>
-          <button
-            onClick={handleDismiss}
-            className="p-1 hover:bg-accent rounded"
-          >
-            <X className="w-4 h-4 text-muted-foreground" />
-          </button>
-        </div>
-      </div>
-
-      {/* Progress */}
-      <div className="px-4 pt-3">
-        <div className="flex gap-1">
-          {questions.map((_, i) => (
-            <div
-              key={i}
-              className={`h-1 flex-1 rounded-full transition-colors ${
-                i <= currentStep ? 'bg-primary' : 'bg-secondary'
-              }`}
-            />
-          ))}
-        </div>
-        <span className="text-xs text-muted-foreground mt-1 block">
-          {currentStep + 1} / {totalSteps}
-        </span>
-      </div>
-
-      {/* Question */}
-      <div className="px-4 py-3">
-        <p className="text-sm font-medium mb-1">
-          {getI18nText(currentQuestion?.title)}
-        </p>
-        {currentQuestion?.subtitle && (
-          <p className="text-xs text-muted-foreground mb-3">
-            {getI18nText(currentQuestion.subtitle)}
-          </p>
-        )}
-
-        <div className="space-y-2 max-h-[260px] overflow-y-auto">
-          {currentQuestion?.type === 'single_select' &&
-            currentQuestion.options && (
-              <SingleSelectField
-                options={currentQuestion.options}
-                value={answers[currentQuestion.id] as string}
-                onChange={(v) => setAnswer(currentQuestion.id, v)}
-                otherText={otherInputs[currentQuestion.id] || ''}
-                onOtherChange={(t) =>
-                  setOtherInputs((prev) => ({
-                    ...prev,
-                    [currentQuestion.id]: t,
-                  }))
-                }
-              />
-            )}
-
-          {currentQuestion?.type === 'multi_select' &&
-            currentQuestion.options && (
-              <MultiSelectField
-                options={currentQuestion.options}
-                value={(answers[currentQuestion.id] as string[]) || []}
-                onChange={(v) => setAnswer(currentQuestion.id, v)}
-                otherText={otherInputs[currentQuestion.id] || ''}
-                onOtherChange={(t) =>
-                  setOtherInputs((prev) => ({
-                    ...prev,
-                    [currentQuestion.id]: t,
-                  }))
-                }
-              />
-            )}
-
-          {currentQuestion?.type === 'text' && (
-            <textarea
-              className="w-full h-20 text-sm border rounded-lg p-2 bg-background resize-none focus:outline-none focus:ring-1 focus:ring-primary"
-              placeholder={getI18nText(currentQuestion.placeholder)}
-              maxLength={currentQuestion.max_length || 500}
-              value={(answers[currentQuestion.id] as string) || ''}
-              onChange={(e) => setAnswer(currentQuestion.id, e.target.value)}
-            />
-          )}
-        </div>
-      </div>
-
-      {/* Footer */}
-      <div className="flex items-center justify-between px-4 py-3 border-t">
-        <Button
-          variant="ghost"
-          size="sm"
-          onClick={() => setCurrentStep(Math.max(0, currentStep - 1))}
-          disabled={currentStep === 0}
-        >
-          <ChevronLeft className="w-4 h-4" />
-        </Button>
-
-        <div className="flex gap-2">
-          {!currentQuestion?.required && currentStep < totalSteps - 1 && (
-            <Button
-              variant="ghost"
-              size="sm"
-              onClick={() => setCurrentStep(currentStep + 1)}
-            >
-              {getI18nText({ zh_Hans: '跳过', en_US: 'Skip' })}
-            </Button>
-          )}
-
-          {currentStep < totalSteps - 1 ? (
-            <Button
-              size="sm"
-              onClick={() => setCurrentStep(currentStep + 1)}
-              disabled={
-                currentQuestion?.required && !answers[currentQuestion?.id]
-              }
-            >
-              {getI18nText({ zh_Hans: '下一题', en_US: 'Next' })}
-            </Button>
-          ) : (
-            <Button size="sm" onClick={handleSubmit}>
-              {getI18nText({ zh_Hans: '提交', en_US: 'Submit' })}
-            </Button>
-          )}
-        </div>
-      </div>
-    </div>
-  );
-}
-
-// ---- Sub-components for flat radio/checkbox style ----
-
-function SingleSelectField({
-  options,
-  value,
-  onChange,
-  otherText,
-  onOtherChange,
-}: {
-  options: SurveyOption[];
-  value?: string;
-  onChange: (v: string) => void;
-  otherText: string;
-  onOtherChange: (t: string) => void;
-}) {
-  return (
-    <div className="space-y-1.5">
-      {options.map((opt) => (
-        <div key={opt.id}>
-          <button
-            onClick={() => onChange(opt.id)}
-            className={`w-full text-left text-sm px-3 py-2 rounded-lg border transition-colors ${
-              value === opt.id
-                ? 'border-primary bg-primary/5 text-primary'
-                : 'border-border hover:bg-accent'
-            }`}
-          >
-            {getI18nText(opt.label)}
-          </button>
-          {opt.has_input && value === opt.id && (
-            <input
-              type="text"
-              className="mt-1 w-full text-sm border rounded-lg px-3 py-1.5 bg-background focus:outline-none focus:ring-1 focus:ring-primary"
-              placeholder="..."
-              value={otherText}
-              onChange={(e) => onOtherChange(e.target.value)}
-            />
-          )}
-        </div>
-      ))}
-    </div>
-  );
-}
-
-function MultiSelectField({
-  options,
-  value,
-  onChange,
-  otherText,
-  onOtherChange,
-}: {
-  options: SurveyOption[];
-  value: string[];
-  onChange: (v: string[]) => void;
-  otherText: string;
-  onOtherChange: (t: string) => void;
-}) {
-  const toggle = (id: string) => {
-    if (value.includes(id)) {
-      onChange(value.filter((v) => v !== id));
-    } else {
-      onChange([...value, id]);
-    }
-  };
-
-  return (
-    <div className="space-y-1.5">
-      {options.map((opt) => {
-        const selected = value.includes(opt.id);
-        return (
-          <div key={opt.id}>
-            <button
-              onClick={() => toggle(opt.id)}
-              className={`w-full text-left text-sm px-3 py-2 rounded-lg border transition-colors flex items-center gap-2 ${
-                selected
-                  ? 'border-primary bg-primary/5 text-primary'
-                  : 'border-border hover:bg-accent'
-              }`}
-            >
-              <Checkbox checked={selected} className="pointer-events-none" />
-              {getI18nText(opt.label)}
-            </button>
-            {opt.has_input && selected && (
-              <input
-                type="text"
-                className="mt-1 w-full text-sm border rounded-lg px-3 py-1.5 bg-background focus:outline-none focus:ring-1 focus:ring-primary"
-                placeholder="..."
-                value={otherText}
-                onChange={(e) => onOtherChange(e.target.value)}
-              />
-            )}
-          </div>
-        );
-      })}
-    </div>
-  );
-}

web/src/app/home/knowledge/KBDetailDialog.tsx

@@ -21,17 +21,18 @@ import {
 import { Button } from '@/components/ui/button';
 import { useTranslation } from 'react-i18next';
 import { httpClient } from '@/app/infra/http/HttpClient';
-import { KnowledgeBase } from '@/app/infra/entities/api';
-import { CustomApiError } from '@/app/infra/entities/common';
-import { toast } from 'sonner';
+// import { KnowledgeBase } from '@/app/infra/entities/api';
 import KBForm from '@/app/home/knowledge/components/kb-form/KBForm';
 import KBDoc from '@/app/home/knowledge/components/kb-docs/KBDoc';
-import KBRetrieveGeneric from '@/app/home/knowledge/components/kb-retrieve/KBRetrieveGeneric';
+import KBRetrieve from '@/app/home/knowledge/components/kb-retrieve/KBRetrieve';
+import ExternalKBForm from '@/app/home/knowledge/components/external-kb-form/ExternalKBForm';
+import ExternalKBRetrieve from '@/app/home/knowledge/components/kb-retrieve/ExternalKBRetrieve';
 
 interface KBDetailDialogProps {
   open: boolean;
   onOpenChange: (open: boolean) => void;
   kbId?: string;
+  kbType: 'builtin' | 'external';
   onFormCancel: () => void;
   onKbDeleted: () => void;
   onNewKbCreated: (kbId: string) => void;
@@ -42,6 +43,7 @@ export default function KBDetailDialog({
   open,
   onOpenChange,
   kbId: propKbId,
+  kbType,
   onFormCancel,
   onKbDeleted,
   onNewKbCreated,
@@ -51,41 +53,13 @@ export default function KBDetailDialog({
   const [kbId, setKbId] = useState<string | undefined>(propKbId);
   const [activeMenu, setActiveMenu] = useState('metadata');
   const [showDeleteConfirm, setShowDeleteConfirm] = useState(false);
-  const [kbInfo, setKbInfo] = useState<KnowledgeBase | null>(null);
 
   useEffect(() => {
     setKbId(propKbId);
     setActiveMenu('metadata');
-    if (propKbId) {
-      loadKbInfo(propKbId);
-    } else {
-      setKbInfo(null);
-    }
   }, [propKbId, open]);
 
-  async function loadKbInfo(id: string) {
-    try {
-      const resp = await httpClient.getKnowledgeBase(id);
-      setKbInfo(resp.base);
-    } catch (e) {
-      console.error('Failed to load KB info:', e);
-      toast.error(
-        t('knowledge.loadKnowledgeBaseFailed') + (e as CustomApiError).msg,
-      );
-    }
-  }
-
-  // Check if this KB supports document management
-  const hasDocumentCapability = (): boolean => {
-    if (!kbInfo || !kbInfo.knowledge_engine) {
-      return false;
-    }
-    return (
-      kbInfo.knowledge_engine.capabilities?.includes('doc_ingestion') ?? false
-    );
-  };
-
-  // Build menu based on KB capabilities
+  // Build menu based on KB type
   const menu = [
     {
       key: 'metadata',
@@ -100,8 +74,8 @@ export default function KBDetailDialog({
         </svg>
       ),
     },
-    // Show documents only if capability is present
-    ...(hasDocumentCapability()
+    // Only show documents for builtin KB
+    ...(kbType === 'builtin'
       ? [
           {
             key: 'documents',
@@ -133,51 +107,66 @@ export default function KBDetailDialog({
     },
   ];
 
-  const confirmDelete = async () => {
-    try {
-      await httpClient.deleteKnowledgeBase(kbId ?? '');
-      onKbDeleted();
-    } catch (e) {
-      console.error('Failed to delete KB:', e);
-      toast.error(
-        t('knowledge.deleteKnowledgeBaseFailed') + (e as CustomApiError).msg,
-      );
-    } finally {
-      setShowDeleteConfirm(false);
-    }
-  };
+  const confirmDelete = () => {
+    const deletePromise =
+      kbType === 'builtin'
+        ? httpClient.deleteKnowledgeBase(kbId ?? '')
+        : httpClient.deleteExternalKnowledgeBase(kbId ?? '');
 
-  // Retrieve function
-  const retrieveFunction = async (id: string, query: string) => {
-    return await httpClient.retrieveKnowledgeBase(id, query);
+    deletePromise.then(() => {
+      onKbDeleted();
+    });
+    setShowDeleteConfirm(false);
   };
 
   if (!kbId) {
-    // New KB creation
+    // new kb
     return (
       <Dialog open={open} onOpenChange={onOpenChange}>
         <DialogContent className="overflow-hidden p-0 !max-w-[40vw] max-h-[70vh] flex">
           <main className="flex flex-1 flex-col h-[70vh]">
             <DialogHeader className="px-6 pt-6 pb-4 shrink-0">
-              <DialogTitle>{t('knowledge.createKnowledgeBase')}</DialogTitle>
+              <DialogTitle>
+                {kbType === 'builtin'
+                  ? t('knowledge.createKnowledgeBase')
+                  : t('knowledge.addExternal')}
+              </DialogTitle>
             </DialogHeader>
             <div className="flex-1 overflow-y-auto px-6 pb-6">
-              <KBForm
-                initKbId={undefined}
-                onNewKbCreated={onNewKbCreated}
-                onKbUpdated={onKbUpdated}
-              />
+              {kbType === 'builtin' ? (
+                <KBForm
+                  initKbId={undefined}
+                  onNewKbCreated={onNewKbCreated}
+                  onKbUpdated={onKbUpdated}
+                />
+              ) : (
+                <ExternalKBForm
+                  initKBId={undefined}
+                  onFormSubmit={() => onOpenChange(false)}
+                  onKBDeleted={() => {}}
+                  onNewKBCreated={onNewKbCreated}
+                />
+              )}
             </div>
-            <DialogFooter className="px-6 py-4 border-t shrink-0">
-              <div className="flex justify-end gap-2">
-                <Button type="submit" form="kb-form">
-                  {t('common.save')}
-                </Button>
-                <Button type="button" variant="outline" onClick={onFormCancel}>
-                  {t('common.cancel')}
-                </Button>
-              </div>
-            </DialogFooter>
+            {activeMenu === 'metadata' && (
+              <DialogFooter className="px-6 py-4 border-t shrink-0">
+                <div className="flex justify-end gap-2">
+                  <Button
+                    type="submit"
+                    form={kbType === 'builtin' ? 'kb-form' : 'external-kb-form'}
+                  >
+                    {t('common.save')}
+                  </Button>
+                  <Button
+                    type="button"
+                    variant="outline"
+                    onClick={onFormCancel}
+                  >
+                    {t('common.cancel')}
+                  </Button>
+                </div>
+              </DialogFooter>
+            )}
           </main>
         </DialogContent>
       </Dialog>
@@ -216,7 +205,7 @@ export default function KBDetailDialog({
                 </SidebarGroup>
               </SidebarContent>
             </Sidebar>
-            <main className="flex flex-1 flex-col h-[75vh] min-w-0 overflow-x-hidden">
+            <main className="flex flex-1 flex-col h-[75vh]">
               <DialogHeader className="px-6 pt-6 pb-4 shrink-0">
                 <DialogTitle>
                   {activeMenu === 'metadata'
@@ -227,28 +216,33 @@ export default function KBDetailDialog({
                 </DialogTitle>
               </DialogHeader>
               <div className="flex-1 overflow-y-auto px-6 pb-6">
-                {activeMenu === 'metadata' && (
-                  <KBForm
-                    initKbId={kbId}
-                    onNewKbCreated={onNewKbCreated}
-                    onKbUpdated={onKbUpdated}
-                  />
-                )}
-                {activeMenu === 'documents' && hasDocumentCapability() && (
-                  <KBDoc
-                    kbId={kbId}
-                    ragEngineName={kbInfo?.knowledge_engine?.name}
-                    ragEngineCapabilities={
-                      kbInfo?.knowledge_engine?.capabilities
-                    }
-                  />
-                )}
-                {activeMenu === 'retrieve' && (
-                  <KBRetrieveGeneric
-                    kbId={kbId}
-                    retrieveFunction={retrieveFunction}
-                  />
+                {activeMenu === 'metadata' &&
+                  (kbType === 'builtin' ? (
+                    <KBForm
+                      initKbId={kbId}
+                      onNewKbCreated={onNewKbCreated}
+                      onKbUpdated={onKbUpdated}
+                    />
+                  ) : (
+                    <ExternalKBForm
+                      initKBId={kbId}
+                      onFormSubmit={() => onOpenChange(false)}
+                      onKBDeleted={() => {
+                        onKbDeleted();
+                        onOpenChange(false);
+                      }}
+                      onNewKBCreated={onNewKbCreated}
+                    />
+                  ))}
+                {activeMenu === 'documents' && kbType === 'builtin' && (
+                  <KBDoc kbId={kbId} />
                 )}
+                {activeMenu === 'retrieve' &&
+                  (kbType === 'builtin' ? (
+                    <KBRetrieve kbId={kbId} />
+                  ) : (
+                    <ExternalKBRetrieve kbId={kbId} />
+                  ))}
               </div>
               {activeMenu === 'metadata' && (
                 <DialogFooter className="px-6 py-4 border-t shrink-0">
@@ -260,7 +254,12 @@ export default function KBDetailDialog({
                     >
                       {t('common.delete')}
                     </Button>
-                    <Button type="submit" form="kb-form">
+                    <Button
+                      type="submit"
+                      form={
+                        kbType === 'builtin' ? 'kb-form' : 'external-kb-form'
+                      }
+                    >
                       {t('common.save')}
                     </Button>
                     <Button
@@ -278,7 +277,7 @@ export default function KBDetailDialog({
         </DialogContent>
       </Dialog>
 
-      {/* Delete confirmation dialog */}
+      {/* 删除确认对话框 */}
       <Dialog open={showDeleteConfirm} onOpenChange={setShowDeleteConfirm}>
         <DialogContent>
           <DialogHeader>