api-design-patterns

Production API design patterns — RESTful resource design (naming, methods, status codes, versioning, idempotency, ETags), error handling (RFC 7807 Problem Details, typed error classes, validation errors, error middleware), pagination and filtering (cursor/offset pagination, Relay connections, sorting, field selection, search), rate limiting (token bucket, sliding window, Redis distributed limiting, tiered limits, proper headers), WebSocket real-time patterns (ws, gorilla/websocket, rooms/channels, authentication, heartbeat/reconnection, Redis pub/sub scaling), and GraphQL (schema design, resolvers, DataLoader N+1 prevention, subscriptions, Relay pagination, query complexity). 6 skills, 3 commands, 1 agent. No dependencies.