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Junyan Chin e9dd584792 feat: MCP server + in-repo skills (agent-friendly platform) (#2269)
* feat(api): support global API key from config.yaml (api.global_api_key)

Accept a config-defined global API key anywhere a web-UI key is accepted
(X-API-Key / Bearer), with no login session and no DB record. Useful for
automated deployments and AI agents (HTTP API + MCP). Defaults to empty
(disabled); does not require the lbk_ prefix.

- templates/config.yaml: add api.global_api_key with security notes
- service/apikey.py: verify_api_key checks global key first (constant-time)
- docs/API_KEY_AUTH.md: document the global key + security guidance
- tests: cover global-key match, prefix-free, fallback-to-db, disabled

* feat(mcp): expose LangBot management as an MCP server at /mcp

Add an MCP (Model Context Protocol) server so external AI agents can manage a
LangBot instance. Reuses the same API-key auth as the HTTP API (including the
config.yaml global API key).

- pkg/api/mcp/server.py: FastMCP server wrapping the service layer; 21 curated
  tools across system/bots/pipelines/models/knowledge/mcp-servers/skills
- pkg/api/mcp/mount.py: ASGI dispatcher fronting Quart; authenticates /mcp
  requests with an API key, runs the streamable-HTTP session manager lifespan
- controller/main.py: serve the wrapped ASGI app via hypercorn (was run_task)
- web: new 'MCP' tab in the API integration dialog showing endpoint, auth, and
  client config; i18n for 8 locales
- tests/manual/mcp_smoke.py: e2e check (401 unauth, list tools, call tools)

Tool surface is intentionally curated (not all ~25 route groups) to keep the
agent surface small, safe, and maintainable. Extend deliberately.

* feat(skills): add in-repo skills/ as the single source of truth

Migrate the agent skills + QA/e2e test harness from the (now archived)
langbot-app/langbot-skills repo into LangBot/skills/, and add four new skills.

Migrated:
- langbot-plugin-dev, langbot-testing (e2e), langbot-env-setup,
  langbot-skills-maintenance, langbot-eba-adapter-dev
- the bin/lbs CLI (src/, test/, scripts/, schemas/, qa-agent-docs/)

New:
- langbot-dev      core backend + web development
- langbot-deploy   Docker/K8s deployment + config.yaml + global API key
- langbot-mcp-ops  operating the LangBot MCP server (/mcp)
- langbot-space-ops operating the Space marketplace MCP server

- src/cli.ts repoRoot(): recognize the skills assets root (skills.index.json +
  bin/lbs) so the CLI works when nested inside the LangBot repo
- README.md: unified skill catalog; skills.index.json regenerated

Parity with source verified: bin/lbs validate + node test suite match the
source repo (only the uncommitted .lbpkg build-artifact fixture differs).

* docs(agents): document agent-facing surfaces + API/MCP/skills sync rule

* docs(readme): add 'Built for AI Agents' section across all locales

Highlight MCP server, in-repo skills (single source of truth), AGENTS.md
sync rule, and llms.txt. Cross-link LangBot Space MCP marketplace.

* style(mcp): fix ruff format + prettier lint in MCP server and API panel

* style(web): prettier format MCP i18n locale entries

* docs(skills): note MCP instance control in dev/testing skills

All development-guidance skills now point to the LangBot instance MCP
server (/mcp) and the Space marketplace MCP server, reusing API keys.
2026-06-20 15:14:47 +08:00

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Markdown

# LangBot Agent Testing 技术选型
## 状态
这是技术选型背景文档,不是当前路线图。当前黑盒 E2E QA 的实施顺序见:
```text
docs/qa-agent/04-black-box-e2e-roadmap.md
```
## 目标
`langbot-skills` 的目标不是替代测试框架,而是沉淀 agent 可复用的测试资产,让开发者 clone 仓库后,可以让 Codex、Claude Code、Computer Use 或 Playwright MCP 复用已有路径完成 LangBot 功能验证。
核心原则:
- Skill 负责路由和少量规则。
- Reference 负责可读流程和背景知识。
- Case 负责结构化测试路径。
- Troubleshooting 负责结构化故障资产。
- `lbs` 负责结构校验、索引、资产创建和未来的运行/报告能力。
- UI/browser 是产品 QA 的主路径;API/curl 只用于诊断。
## 浏览器控制层
不同开发者可用的浏览器控制能力不同,所以浏览器层必须可替换。
| 方案 | 适用场景 | 优点 | 代价 |
|---|---|---|---|
| Codex / Claude Computer Use | agent 可以直接控制可见浏览器 | 登录和交互路径最自然,通常不需要额外 MCP 浏览器桥接 | 依赖具体 agent 工具能力 |
| Playwright MCP | 没有 Computer Use,但有 MCP 浏览器工具 | 稳定、可脚本化、适合回归路径 | OAuth 登录通常需要额外 visible profile |
| 直接 Playwright 脚本 | 测试路径非常稳定,适合 CI | 可重复性强 | 需要维护脚本和 selector |
| 商业 AI QA 平台 | 团队希望外包测试运行平台 | 报告和 PR 集成完整 | 成本和平台绑定 |
## 当前推荐
先采用分层降级:
```text
有 Computer Use?
是 -> 使用 Computer Use 控制浏览器
否 -> 使用 Playwright MCP
需要 GitHub OAuth?
是 -> 使用持久浏览器 profile,让用户手动完成登录
否 -> 直接使用已有登录态或测试账号状态
```
具体选择逻辑沉淀在:
```text
skills/langbot-env-setup/references/browser-access-selection.md
```
测试原则固定在:
```text
docs/qa-agent/03-agent-browser-qa-principles.md
```
## 环境变量层
测试文档不应写死端口。共享默认值放在:
```text
skills/.env
```
关键变量:
```text
LANGBOT_FRONTEND_URL
LANGBOT_BACKEND_URL
LANGBOT_DEV_FRONTEND_URL
LANGBOT_REPO
LANGBOT_WEB_REPO
LANGBOT_BROWSER_PROFILE
```
Agent 执行测试前应先读取 `skills/.env`,再用用户提供的当前环境或已启动服务覆盖默认值。
## 测试资产层
测试资产分两类:
```text
skills/<skill>/
references/ # Markdown 流程说明
cases/ # 结构化测试用例
troubleshooting/ # 结构化故障记录
```
当前已实现:
- `SKILL.md` 路由
- `references/*.md`
- `lbs case new/list/show`
- `lbs trouble show/search`
- `lbs test plan`
- `lbs test report`
- `lbs list / validate / index`
下一步重点:
- 日志守卫规则补充
- 报告产物管理
## 关键判断
不要强制所有内容只能通过 CLI 修改。更好的模式是:
- 新增 case/troubleshooting:优先使用 `lbs`
- 大段流程说明:允许直接编辑 Markdown
- 结构性变更后:必须运行 `lbs validate`
- 任何生成索引的变更后:运行 `lbs index`
这样既能沉淀结构化资产,又不会在 schema 未稳定时拖慢迭代。