REST API Design This skill helps you design and implement REST API endpoints following project patterns with Zod validation and OpenAPI documentation. When to Use ✅ USE this skill for: - Creating new REST API endpoints with Next.js App Router - Designing request/response schemas with Zod - Implementing proper error handling and status codes - Adding rate limiting and authentication - Generating OpenAPI documentation ❌ DO NOT use for: - GraphQL APIs → different paradigm entirely - Cloudflare Workers → use skill - Supabase Edge Functions → use Supabase docs - WebSocket/real-time APIs → differen…