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feat(skill): unify skill activation as authorized tools

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Expose skill tools (activate/register_skill/native exec) like native tools
instead of gating them behind the skill_authoring capability:
- toolmgr.get_all_tools drops include_skill_authoring; SkillToolLoader
  self-gates on sandbox + skill_mgr
- preproc drops the include_skill_authoring branch; pipeline-bound skills
  and the skills resource gate on skill_mgr presence

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

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

Align agent-runner-pluginization design docs to the all-tool model.
This commit is contained in:
huanghuoguoguo
2026-06-21 09:27:05 +08:00
parent dcec8f654a
commit 0bd50843fe
14 changed files with 213 additions and 64 deletions
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docs/agent-runner-pluginization/AGENT_CONTEXT_PROTOCOL.md
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@@ -109,7 +109,7 @@ Claude Code、Codex、Kimi Code 这类 runtime 通常已有自己的 session、
- `agent-context.json`：结构化 JSON，包含 `run_id`、`event`、`actor`、`subject`、`input`、`delivery`、`resources`、`context`、`state`、`runtime`。
- `LANGBOT_CONTEXT.md`：人类可读摘要。
- `resources`：只包含本次 run 授权后的资源句柄和能力摘要，不暴露 Host 内部私有对象、secret 或资源内容。
- `skills`：LangBot skills 不是直接投影给 harness native tool loop 的文件能力；已授权 skill 应由 Host / sandbox 封装成 scoped tools，再通过 `ctx.resources.tools`、`AgentRunAPIProxy` 或 SDK-owned MCP bridge 暴露。
- `skills`：LangBot skills 不是直接投影给 harness native tool loop 的文件能力，而是**一组被授权的 tool**。发现走 `list_skills`（或 `langbot_list_assets` 增加 skills 一类），激活/注册走 `activate` / `register_skill`，包内操作走 native exec/read/write，统一通过 `ctx.resources.tools`、`AgentRunAPIProxy` 或 SDK-owned MCP bridge 暴露。Host 不向 prompt 注入 skill 索引（无 progressive-disclosure 注入）；harness 通过调用发现工具主动查询 skill 清单。`agent-context.json` 的 `skills` 字段仅作发现工具的数据来源与可选 `suggested_skill_prompt` 的输入。
- `MCP config`：只投影 per-run、scoped 的 SDK-owned bridge 或外部 MCP 连接配置；LangBot 资源访问必须回到 SDK runtime / Host API，不允许 harness 通过自带 MCP/native tool 直接读 Host 内部资源。
- `state pointers`：外部 session id、working directory、checkpoint 等小型 JSON 状态通过 Host state API 保存。