react-best-practices

SKILL.md

Performance patterns and guidelines from react.dev and Vercel Engineering.

| Avoid unnecessary effects | Render cycles, bugs | effect-pitfalls.md | | Eliminate waterfalls | First paint, TTI | async-waterfall-elimination.md | | Parallel data fetching | Load time | async-parallel-requests.md | | Avoid barrel imports | Bundle size | bundle-barrel-imports.md |

| React Compiler (19+) | Auto memoization | react-compiler.md | | Dynamic imports | Code splitting | bundle-dynamic-import.md | | Preload on user intent | Perceived latency | bundle-preload.md | | Strategic memo() | Render perf | rerender-memo-strategy.md | | Server caching | Server response | server-cache-patterns.md |

React best practices from react.dev and Vercel. Use when: (1) Reviewing React code, (2) Debugging performance issues, (3) Optimizing bundle size, (4) Writing effects or state logic. Triggers on: React performance, re-render, bundle size, waterfalls, code splitting, memo, useCallback, useMemo, useEffect, SSR flicker, initial load slow, React Compiler, state structure, immutable update, setState array object. Source: ahonn/dotfiles.

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