Cloudbase

---
name: cloudbase
description: "Use this skill when you develop, design, build, deploy, debug, migrate, or troubleshoot CloudBase (腾讯云开发, 云开发, TCB, 微信云开发) projects. Covers Web, 微信小程序, 小程序, uni-app, mobile (iOS, Android, Flutter, React Native). UI (页面, 界面, 表单, form, dashboard, prototype, 原型); auth (登录, 注册, OAuth, 微信登录, publishable key); databases (NoSQL 文档数据库, MySQL 关系型数据库, PostgreSQL/CloudBase PG, app.rdb(), queryPgDatabase/managePgDatabase, CRUD, 查询, security rules); 云函数/cloud functions (serverless, scf_bootstrap); CloudRun (云托管, Dockerfile); 云存储. Built-in AI (内置大模型, AI 对话, streaming, 流式输出, 图片生成, generateText, streamText, createModel, generateImage, TokenHub, Hunyuan, hunyuan-exp, DeepSeek, deepseek, GLM, Kimi, Token Credits 资源包, 小程序成长计划). 第三方大模型, 大模型接入, 大模型调用, LLM API, AI agent, 智能体, AI Agent, AG-UI, LangGraph. Ops (巡检, 诊断, health check, 日志, troubleshooting). Spec (需求文档, 技术方案, requirements, tasks.md). Do NOT use for non-CloudBase projects, pure frontend without CloudBase, or self-hosted backends without CloudBase."
description_zh: 为你的小程序和 Web/H5 提供一体化运行与部署环境，包括数据库、云函数、云存储、身份权限和静态托管
description_en: An all-in-one runtime and deployment environment for WeChat Mini Programs and Web/H5 apps, including database, cloud functions, cloud storage, identity and access control, and static hosting.
version: 2.32.5
---

# CloudBase Development Guidelines

## Workflow

```
1. Exploration  →  Read the matching skill completely before writing any code.
                   Search with searchKnowledgeBase(mode="skill"), then Read full SKILL.md.
2. Implementation
   ├── 2a. Resource preparation → Prefer MCP; if MCP tools are missing in THIS session,
   │     configure MCP for next session and use `tcb` CLI now (see tooling-fallback.md)
   └── 2b. Frontend implementation → Write code, install deps, start server, test
3. Close-out  →  Run cloudbase-code-review, fix errors, declare done
```

**Key constraints:** Stage 2a must precede frontend code. Stage 3 is mandatory.

## Activation Contract

Routing uses stable skill ids (`auth-tool-cloudbase`, `auth-web-cloudbase`, `http-api-cloudbase`, …) across source, generated artifacts, and installs.

### Standalone skill fallback

If only one published skill is exposed:

- Prefer local relative paths (`references/<skill-id>/SKILL.md` or sibling skill directories) when those files exist in the workspace.
- Do **not** fetch sibling skill markdown from remote raw URLs into the agent context.
- If a required sibling skill is missing locally, ask the user to install the full CloudBase skills pack or IDE plugin (`npx skills add tencentcloudbase/cloudbase-skills`), then continue using local files only.

Follow relative `references/...` paths from the current skill. If MCP is unavailable in this session, follow `references/tooling-fallback.md`: configure MCP via `references/mcp-setup.md` for the next session, and use `tcb` CLI via the `cloudbase-cli` skill (read `core.md` + the matching domain reference — **not** `tcb deploy`) to finish login/manage now. If `npm`/`npx` are missing, follow the “No npm/npx” section in `tooling-fallback.md`.

### Global rules before action

- Identify the scenario, then read the matching skill before writing code or calling CloudBase APIs.
- Prefer semantic sources for toolkit maintenance; express runtime routing in stable skill ids.
- Prefer MCP or mcporter for management tasks when those tools are available in **this** session; inspect tool schemas before execution. If they are not available yet, do not stall — use the CLI fallback in `references/tooling-fallback.md`.
- UI tasks: read `ui-design` first and output the design spec before interface code.
- Auth tasks: read `auth-tool-cloudbase` first and enable providers before frontend implementation.
- Keep auth domains separate: management login uses `auth` (or `tcb login` when MCP auth is unavailable); app-side auth uses `queryAppAuth` / `manageAppAuth`.

### Universal guardrails

- After 2–3 failed attempts on the same path, stop and reroute (platform skill, runtime, auth domain, permission model, SDK boundary).
- Always specify `EnvId` explicitly; do not rely on CLI-selected or implicit env state.
- When the environment identifier is an alias, nickname, or other short form, **do not pass it directly** to `auth.set_env`, SDK init, console URLs, or generated config. First resolve it to the canonical full `EnvId` with `envQuery(action=list, alias=..., aliasExact=true)`. If multiple environments match or no exact alias exists, stop and clarify with the user.
- When writing MCP/tool results to a file, pass serialized text (`JSON.stringify(result, null, 2)`), not raw objects. If a write tool says `content` expected a string but received an object, do not retry with the same raw object. Serialize the object first, then retry once with the serialized text, and make sure the retried call actually passes the serialized string rather than the original object.
- Keep scenario-specific pitfalls in child skills — do not expand this entry file.
- **First frontend deploy must use `manageApps(action="createApp", ...)`.** `manageHosting` is only for incremental updates of projects originally deployed via hosting.

### Engineering constitution (applies to every scenario)

These rules override convenience. Full rationale lives in `web-development`.

- **Prepare backend resources before writing frontend code.** Prefer MCP for auth providers, tables, storage domains, and security rules; if MCP tools are missing in this session, use `tcb` CLI after configuring MCP for the next session (`references/tooling-fallback.md`).
- **Do NOT use `any` to bypass type errors.** Prefer `unknown` + type guards / precise interfaces.
- **Self-verify before claiming done.** Static (`tsc` / lint / build / tests) and runtime (`agent-browser` for user-visible flows). Name gaps explicitly if a layer cannot run.
- **Do not paper over failures.** No empty `try/catch`, no deleting failing tests to go green.
- **`ai.createModel(...)` / `wx.cloud.extend.AI.createModel(provider)` takes a GroupName**, not a vendor/model id. Legal: `"cloudbase"`, `"hunyuan-exp"`, or `"custom-<name>"`. Model ids go in `generateText` / `streamText` `model` field. See `ai-model-web` / `ai-model-nodejs` / `ai-model-wechat`.
- **Low-capability STOP card:** For PostgreSQL / CloudBase PG / `app.rdb()` / `queryPgDatabase` / `managePgDatabase`, route to `postgresql-development-cloudbase` — do **not** use NoSQL/`manageMysqlDatabase` for that path. For Web auth guards, use `auth.getSession()` and require `data.session`; do **not** use deprecated `getLoginState()` / `auth.getUser()` as login proof.

### High-priority routing

<!-- DO NOT EDIT: auto-generated from references/activation-map.yaml -->

| Scenario | Read first | Then read | Do NOT route to first | Must check before action |
|----------|------------|-----------|------------------------|--------------------------|
| Minimal Web BaaS demo (fast path) | `minimal-web-baas-demo` | web-development, no-sql-web-sdk, postgresql-development | cloud-functions, cloudrun, spec-workflow, ui-design | BaaS-first Web SDK CRUD, MCP schema only, zero cloud functions unless secrets/cron/rules-cannot-express |
| Web login / registration / auth UI | `auth-tool-cloudbase` | auth-web, web-development | cloud-functions, http-api | Provider status and publishable key |
| WeChat mini program + CloudBase | `miniprogram-development` | auth-wechat, no-sql-wx-mp-sdk | auth-web, web-development | Whether the project really uses CloudBase / `wx.cloud` |
| Native App / Flutter / React Native | `http-api-cloudbase` | auth-tool, relational-database-tool | auth-web, cloudbase-document-database-web-sdk, web-development | SDK boundary, OpenAPI, auth method |
| Web projects + NoSQL Database | `web-development` | no-sql-web-sdk, auth-web | relational-database-tool, http-api | Login state and database access permission model |
| CloudBase PostgreSQL / PG | `postgresql-development-cloudbase` | auth-tool, auth-web-cloudbase, web-development, miniprogram-development, cloud-storage-web, http-api | relational-database-tool, no-sql-web-sdk | PG schema, usernamePassword login, backend/RLS permission model |
| MySQL Database (relational) | `relational-database-mcp-cloudbase` | relational-database-web, http-api | no-sql-web-sdk, web-development | Distinguish MCP management vs app code access |
| Cloud Functions | `cloud-functions` | auth-tool, ai-model-nodejs | cloudrun-development, auth-web | Event vs HTTP function, runtime, `scf_bootstrap` |
| CloudRun backend | `cloudrun-development` | auth-tool, relational-database-tool | cloud-functions | Container boundary, Dockerfile, CORS |
| AI Agent (智能体开发) | `cloudbase-agent` | cloud-functions, cloudrun-development | cloud-functions, cloudrun-development | AG-UI protocol, scf_bootstrap, SSE streaming |
| AI model call (大模型调用 / 文本生成 / 图片生成 / 流式对话) | `ai-model-web` | ai-model-nodejs, ai-model-wechat | cloudbase-agent, cloud-functions, cloudrun-development | 先跑「调用前必须的资格检查」：`DescribeActivityInfo`（小程序成长计划） + `DescribeEnvPostpayPackage`（Token Credits 资源包） |
| UI generation | `ui-design` | web-development, miniprogram-development | cloud-functions | Design specification first |
| AI Model (Web) | `web-development` | ai-model-web, ui-design | ai-model-wechat, http-api | Platform and streaming interaction mode |
| Resource health inspection / troubleshooting | `ops-inspector` | cloud-functions, cloudrun-development | ui-design, spec-workflow | CLS enabled; use queryEnv(action=metrics) for QPS/CPU (never callCloudApi); time range for logs |
| Spec workflow / architecture design | `spec-workflow` | cloudbase | web-development, cloud-functions | Requirements, design, tasks confirmed |

### Routing reminders

- Web auth failures: usually skipped provider config, not missing frontend snippets.
- Native App failures: usually Web SDK paths, not missing HTTP API knowledge.
- Mini program failures: treating `wx.cloud` like Web auth/SDK.
- CloudBase PG failures: falling back to MySQL/NoSQL, skipping username-password readiness, or guessing raw HTTP instead of `app.rdb()` / documented OpenAPI.
- AI model failures: usually missing Token Credits / Growth Plan — run `DescribeEnvPostpayPackage` / `DescribeActivityInfo` before changing code.

## MCP + CLI prerequisite

Prefer CloudBase MCP for management/deploy when tools are loaded in the current session. Setup: `references/mcp-setup.md`. First-session / unavailable path: `references/tooling-fallback.md`.

- **Preferred install:** `npx plugins add TencentCloudBase/cloudbase-plugin -y --scope user`. Supported `--target` IDs: `claude-code`, `cursor`, `codex`, `grok`, `kimi`, `github-copilot`, `vscode`. See `references/mcp-setup.md`.
- Verify with `npx mcporter list | grep cloudbase` or the IDE MCP panel. If `npm`/`npx` are missing, see `references/tooling-fallback.md` (install Node LTS or use IDE marketplace MCP). If MCP is missing or not yet visible after config, **still proceed**: finish install/config, tell the user a restart unlocks MCP next time, and use `tcb` CLI now via `cloudbase-cli` domain skills — **do not** recommend `tcb deploy`.
- Prefer device-code login via MCP `auth` when available; otherwise `tcb login`. Do not hard-code secrets.

## On-demand references

Load only when needed (do not expand this entry):

- `references/tooling-fallback.md` — MCP vs `tcb` CLI decision tree for first session / missing tools
- `references/deployment-workflow.md` — deploy backend/frontend, `manageApps` vs hosting, URL/docs updates
- `references/console-links.md` — console hash paths after creating resources
- `references/scenarios.md` — user-need → CloudBase capability mapping
- `references/mcp-setup.md` — Plugin install (global default + targets), IDE MCP / mcporter config and auth examples
- `references/activation-map.yaml` — canonical routing contract source

## Reference index

All packaged reference files (required for skill lint reachability):

- [activation-map.yaml](references/activation-map.yaml)
- [console-links.md](references/console-links.md)
- [deployment-workflow.md](references/deployment-workflow.md)
- [mcp-setup.md](references/mcp-setup.md)
- [scenarios.md](references/scenarios.md)
- [tooling-fallback.md](references/tooling-fallback.md)