Integrate API Client

Use this skill when frontend code needs to call a backend API or when an existing integration must change.

When to Use

• a UI needs to read backend data
• a UI needs to mutate backend state
• wiring auth, caching, or error handling for API calls
• following the repo's client/state patterns
• Orval OpenAPI codegen pipeline
• React 19 use() for RSC streaming + TanStack Query for client
• React 19 useActionState for forms + useMutation for complex
• Streaming AI responses with ReadableStream + useReducer

Core Rules