react-client-expert

Load rule: Formal SoT. Code samples + narrative → references/patterns.md only if needed.

// Scope
Client only ("use client" when Next requires)
¬ async Server Components for interactive UI state

// Lint note
Biome useExhaustiveDependencies may be OFF — fix the model, not dep stuffing

// Data preference order
useQuery / useMutation  ≽  use(promise)+Suspense  ≻  useEffect+fetch+useState

Fetch: do not conflate RSC vs client