Individual skill
ia-nodejs-backend
Node.js backend patterns: layered architecture, TypeScript, validation, error handling, security, observability, logging, metrics, deployment. Use when building REST APIs, REST endpoints, middleware, Express/Fastify/Hono/NestJS/Koa servers, tRPC procedures, Bun servers, or server-side TypeScript.
plugins/whetstone/skills/ia-nodejs-backend/SKILL.md
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SKILL.mdcore · 4,385 bytesSKILL.mdcore · 4,385 bytesSPEC.mddoc · 4,409 bytesreferences/api-boundaries.mddoc · 9,693 bytesreferences/api-design.mddoc · 6,263 bytesreferences/async-and-production.mddoc · 12,309 bytesreferences/database-production.mddoc · 4,273 bytesreferences/observability-tracing.mddoc · 3,815 bytesreferences/security.mddoc · 6,613 bytesreferences/typescript-config.mddoc · 2,915 bytes
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# Node.js Backend
**Verify before implementing**: For framework-specific APIs (Express 5, Fastify 5, Node.js 22+ built-ins), look up current, version-matched official docs before writing code. Prefer Context7 (`query-docs`) when available. Otherwise use available web tools to read the framework's official documentation, or the [Node.js API docs](https://nodejs.org/api/) for Node.js built-ins. Training data may lag current releases.
## Working rules
- Validate request and third-party data before use; keep response serialization and error envelopes explicit.
- Preserve caller-visible contracts and authorization when adding resilience or fallbacks.
- Bound concurrency, set timeouts, and avoid blocking production request paths.
- Verify actual resource identity before parsing or caching a reused client's result.
- Exercise operational telemetry and failure paths, not successful return codes alone.
## Architecture