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theseus-kit

theseus-kit 是一个 MCP 服务器,用于安全地检查、编辑、模板化和发布 TFRobot 配置。 通过标准 MCP 协议运行,同时暴露可选的 A2C-SMCP 兼容 window://skill:// 资源。

目录

快速开始

环境要求:Python 3.11+,uv

# 安装
uv sync --locked --all-groups

# 启动 MCP 服务器(stdio 传输)
uv run theseus-kit

最小配置

通过环境变量或 .env 文件配置目标机器人和凭证:

# 机器人路由信息
export THESEUS_ROBOT__ROBOT_ID="my-robot"
export THESEUS_ROBOT__NAMESPACE="default"
export THESEUS_ROBOT__ROBOT_TYPE="tfrobot"
export THESEUS_ROBOT__API_BASE_URL="https://api.example.com"
export THESEUS_ROBOT__MANAGER_BASE_URL="https://manager.example.com"

# 凭证(二选一)
# 方式 1:用户个人令牌(推荐——theseus-kit 是人管配置的工具,非 A2A)
export THESEUS_CREDENTIAL__KIND="user_pat"
export THESEUS_CREDENTIAL__PAT="tfp_xxx"
export THESEUS_CREDENTIAL__ROBOT_PUBLIC_ID="myorg:000042"

# 方式 2:OAuth 2.0(MCP Client 驱动授权)
export THESEUS_CREDENTIAL__KIND="oauth"
export THESEUS_CREDENTIAL__AUTHORIZATION_SERVER="https://manager.example.com"
export THESEUS_CREDENTIAL__SCOPES="config:read config:write"

MCP 工具

theseus-kit 提供 9 个 MCP 工具,覆盖配置的完整生命周期:

只读工具

工具 说明 所需 Scope
get_config_summary 获取机器人身份 + 三态(草稿/模板/线上)配置概览 config:read
list_config_nodes 在配置森林的任意层级列出子节点,支持游标分页和过滤 config:read
get_config_detail 读取单个配置节点的有界、脱敏详情(默认 8 KiB,上限 32 KiB) config:read
get_template 按 ID 读取模板(支持仅元数据或完整详情两种模式) config:read
get_llms_doc 读取机器人运行时 llms.txt Schema 文档(索引 + 具体页面) config:read

变更工具

工具 说明 所需 Scope
update_draft 更新草稿配置项,支持 expected_hash 乐观并发控制 config:write
validate_draft 验证草稿配置是否满足上线条件(全量预检或指定节点),返回逐节点校验结果 config:write
save_template 将草稿子树保存为可复用模板 config:write
publish_config 将所有草稿发布到线上,要求 acknowledge_publish=true 显式确认 config:publish

工具协作流程

get_config_summary        ← 入口:发现有哪些配置
    ↓
list_config_nodes         ← 导航:探索配置树
    ↓
get_config_detail         ← 读取:获取具体内容(含 content_hash)
    ↓
get_llms_doc              ← Schema:了解字段/校验规则
    ↓
update_draft              ← 修改:带冲突保护的写入
    ↓
validate_draft            ← 校验:发布前预检
    ↓
publish_config            ← 发布:显式确认 + root_hash 校验

Skill 资源

theseus-kit 通过 skill:// 资源暴露 3 个中文技能指南,为 LLM 提供结构化的操作流程:

Skill 资源 URI 说明
查看配置 skill://com.a2c-smcp.theseus-kit/inspect-robot-config 标准探索流程:概览 → Schema → 列表 → 详情 → 模板,含脱敏和分页处理指南
编辑草稿 skill://com.a2c-smcp.theseus-kit/edit-robot-draft 读取-检查-写入循环:Schema 优先、乐观并发控制、校验错误处理、模板保存
发布配置 skill://com.a2c-smcp.theseus-kit/publish-robot-config 预检 → 审批边界 → 发布 → 验证,含显式 acknowledge_publish 机制和失败处理矩阵

每个 Skill 定义了允许使用的工具、所需 Scope、标准操作流程和关键约束, 确保 LLM 按「最佳实践」而非自由发挥来操作配置。

实时状态窗口:window://

2 个 window:// 资源提供配置状态的实时快照,在每次变更操作后自动通知更新:

资源 URI 说明
配置摘要 window://com.a2c-smcp.theseus-kit/config/summary 机器人身份 + 三态概览,每次变更后刷新
最近详情 window://com.a2c-smcp.theseus-kit/config/recent 最近打开的配置详情,无打开时返回空状态

使用指南

配置方式

1. 显式凭证模式(user_pat)

有明确配置的凭证时,theseus-kit 走「凭证换发」路径:用户的 PAT 作为 subject_token,Manager 通过 token-exchange(RFC 8693)换发目标机器人 scope 的短 JWT。这是人管配置的正确鉴权模型。

配置的凭证 → Manager 换发端点 → 短 JWT(aud=robot:{public_id})
→ 注入 X-TF-* 路由头 → 调用 TFRobotServer

这是确定性最强的模式:凭证固定,无需浏览器交互,适合自动化 / CI / 后台场景。

2. OAuth 2.0 模式

无显式凭证时,走 MCP 标准 OAuth 授权:

MCP Client → TFRSManager AS(Authorization Code + PKCE)
→ OAuth AS token(aud={issuer}/robots/<id>, typ=at+jwt)
→ theseus-kit 校验(tfrs-auth RS256 + JWKS + scope)
→ 直传 TFRobotServer(无需换发)

适合交互式使用:用户在 MCP Client 中完成授权,无需手动管理令牌。

凭证选择不变式:显式凭证(user_pat)始终优先;OAuth 仅在无显式凭证时启用。 配置错误不会静默降级,而是抛出明确的 ConfigError

MCP Client 集成

在 Claude Desktop 或任意兼容 MCP Client 的配置中添加:

{
  "mcpServers": {
    "theseus-kit": {
      "command": "uv",
      "args": ["run", "theseus-kit"],
      "env": {
        "THESEUS_ROBOT__ROBOT_ID": "my-robot",
        "THESEUS_ROBOT__NAMESPACE": "default",
        "THESEUS_ROBOT__ROBOT_TYPE": "tfrobot",
        "THESEUS_ROBOT__API_BASE_URL": "https://api.example.com",
        "THESEUS_ROBOT__MANAGER_BASE_URL": "https://manager.example.com",
        "THESEUS_CREDENTIAL__KIND": "user_pat",
        "THESEUS_CREDENTIAL__PAT": "tfp_xxx",
        "THESEUS_CREDENTIAL__ROBOT_PUBLIC_ID": "myorg:000042"
      }
    }
  }
}

OAuth 模式下的配置:

{
  "mcpServers": {
    "theseus-kit": {
      "command": "uv",
      "args": ["run", "theseus-kit"],
      "env": {
        "THESEUS_ROBOT__ROBOT_ID": "my-robot",
        "THESEUS_ROBOT__NAMESPACE": "default",
        "THESEUS_ROBOT__ROBOT_TYPE": "tfrobot",
        "THESEUS_ROBOT__API_BASE_URL": "https://api.example.com",
        "THESEUS_ROBOT__MANAGER_BASE_URL": "https://manager.example.com",
        "THESEUS_CREDENTIAL__KIND": "oauth",
        "THESEUS_CREDENTIAL__AUTHORIZATION_SERVER": "https://manager.example.com",
        "THESEUS_CREDENTIAL__SCOPES": "config:read config:write"
      }
    }
  }
}

工作原理

架构分层

┌──────────────────────────────────────────┐
│  MCP 表面层(server.py)                  │
│  FastMCP · 9 工具 · 2 window:// 资源      │
│  3 skill:// 资源 · OAuth PRM 路由         │
├──────────────────────────────────────────┤
│  应用服务层(services/)                   │
│  ConfigReader · DraftEditor · Publisher   │
│  DraftValidator · TemplateSaver           │
│  LlmsDocReader                            │
├──────────────────────────────────────────┤
│  资源投影层(resources/ · skills/)        │
│  window:// 实时快照 · skill:// 中文指南    │
├──────────────────────────────────────────┤
│  TFRobot 客户端(transport.py)            │
│  RobotClient · RobotAuth · 令牌源双路径   │
├──────────────────────────────────────────┤
│  认证层(oauth.py · tokens.py ·           │
│         credentials.py)                  │
│  JwtVerifier 适配 · 令牌换发 · AS 发现    │
├──────────────────────────────────────────┤
│  模型层(models.py · config.py ·          │
│         routing.py · errors.py)          │
│  TFSResponse · 渐进披露模型 · 路由上下文  │
└──────────────────────────────────────────┘

认证体系

theseus-kit 支持两条凭证路径,在 RobotClient 层自然收敛:

路径 1:显式凭证(user_pat)

UserPatConfig
  → build_credential()           # 构造 tfrs-auth PatCredential
  → AsyncCachingTokenSource      # token-exchange + 缓存 + single-flight + 临期刷新 + 退避
  → RobotAuth                    # 注入 Authorization: Bearer <jwt> + X-TF-*
  → TFRobotServer

路径 2:OAuth 2.0

OAuthConfig
  → TheseusTokenVerifier         # tfrs-auth JwtVerifier → MCP SDK TokenVerifier
  → RFC 8414 AS 发现             # fetch_as_metadata() → jwks_uri + issuer
  → 校验: RS256 + scope + exp    # JwtVerifier.verify(required_scope=)
  → StaticTokenSource            # 静态持有已验 token,不换发
  → RobotAuth                    # 注入 Authorization: Bearer + X-TF-*
  → TFRobotServer                # 原生接受 aud={issuer}/robots/<id> + typ=at+jwt

两条路径对比

user_pat OAuth 2.0
令牌来源 Manager 换发(RFC 8693 token-exchange) MCP Client 授权后直传
换发
缓存/刷新 AsyncCachingTokenSource 内置 MCP Client 侧负责
适用场景 人管配置(自动化 / CI / 后台) 交互式使用

数据流

读取配置详情为例,一次完整的请求经过以下路径:

1. MCP Client 调用 get_config_detail(locator="...")

2. server.py 工具处理函数
   → ConfigReader(robot_id=...).get_detail(client, locator, depth, max_bytes)

3. RobotClient.from_settings(settings)
   → RobotAuth(token_source, context).async_auth_flow()
     → token_source.token() 获取 Bearer(换发或静态)
     → context.routing_headers() 获取 X-TF-Namespace / X-TF-RobotId / X-TF-RobotType
   → httpx.AsyncClient 发送 GET 请求到 TFRobotServer

4. TFRobotServer 响应的 JSON 被反序列化为 TFSResponse[ConfigDetail]
   → code / message / data 信封解包
   → ConfigDetail 包含 content_hash / bytes_returned / truncated / redacted[] 等元数据

5. 结果返回给 MCP Client
   → 同时更新 window:// 资源的 last_locator(用于 recent 快照)

安全模型

  • 令牌不出进程:所有凭证保留在 MCP 服务器进程中,绝不进入工具输出、资源、日志或 SKILL 内容
  • SecretStr 保护:pydantic SecretStr 字段默认 repr 不暴露密钥
  • redaction 最后防线redaction.py 用正则清除 PAT(tfp_*)、JWT、OAuth token/auth-code/state 形式的令牌
  • 显式发布确认publish_config 要求 acknowledge_publish=true,防止意外发布
  • 乐观并发控制update_draftexpected_hashpublish_configexpected_root_hash 防止丢失更新
  • 渐进披露:配置读取默认 8 KiB / 硬上限 32 KiB,敏感字段自动脱敏为 <<redacted>>

关键模块

模块 职责
server.py FastMCP 组合根,工具/资源注册,OAuth PRM 路由
config.py TheseusSettings(pydantic-settings),三种凭证配置的判别联合
transport.py RobotClient + RobotAuth(Bearer + X-TF-* 注入)+ StaticTokenSource
oauth.py TheseusTokenVerifier(tfrs-auth → MCP SDK 适配)+ RFC 8414 发现
tokens.py build_token_source()AsyncCachingTokenSource 组装
credentials.py build_credential() — user_pat → tfrs-auth PatCredential
routing.py RequestContext — X-TF-* 头部构建与校验
errors.py 类型化异常层级 + map_exchange_error()
redaction.py 令牌脱敏最后防线(PAT / JWT / OAuth token / code / state)
models.py TFSResponse[T] 信封 + 渐进披露数据模型
services/ ConfigReaderDraftEditorDraftValidatorPublisherTemplateSaverLlmsDocReader
resources/ window:// 实时快照构建
skills/ skill:// 静态中文指南

开发

uv sync --locked --all-groups   # 安装全部依赖
uv run poe check                # 顺序执行 format-check → lint → typecheck
uv run poe ci                   # CI 完整流程:lock-check → check → test-cov
uv run poe test                 # 运行测试(pytest,asyncio 模式 auto)
uv run poe test-cov             # 测试覆盖率(需要 ≥80%)

E2E 测试(需要真实机器人)

THESEUS_E2E=1 \
THESEUS_ROBOT__ROBOT_ID=<rid> \
THESEUS_ROBOT__NAMESPACE=<ns> \
THESEUS_ROBOT__ROBOT_TYPE=tfrobot \
THESEUS_ROBOT__API_BASE_URL=https://api.<clusterDomain> \
THESEUS_ROBOT__MANAGER_BASE_URL=https://<manager-host> \
THESEUS_CREDENTIAL__KIND=user_pat \
THESEUS_CREDENTIAL__PAT=<tfp_...> \
THESEUS_CREDENTIAL__ROBOT_PUBLIC_ID=<orgSlug>:<employeeNo> \
uv run pytest tests/test_e2e_robot.py -v -m e2e

发布前准备

uv run poe ci && uv run poe build && uv run poe package-check

发布流程见 发布文档:版本号由 bump-my-version 管理,通过 GitHub Release + OIDC Trusted Publishing 发布到 PyPI。

关键设计文档

  • docs/architecture.md — 架构基线、分层、安全不变量
  • docs/progressive-disclosure.md — 大配置渐进披露规格(已冻结)
  • docs/auth-oauth-design.md — OAuth 2.0 授权登录技术设计
  • docs/releasing.md — 发布流程

协议参考

  • Model Context Protocol
  • A2C-SMCP protocol
  • RFC 8414 — OAuth 2.0 Authorization Server Metadata
  • RFC 8693 — OAuth 2.0 Token Exchange
  • RFC 8707 — Resource Indicators for OAuth 2.0
  • RFC 9068 — JSON Web Token (JWT) Profile for OAuth 2.0 Access Tokens
  • RFC 9728 — OAuth 2.0 Protected Resource Metadata

License

MIT

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