AGENTS.md — React (modern)

Versions

• React ≥ 19. React Compiler enabled where the build supports it.
• TypeScript 5.x with strict: true.

Conventions

• Function components, hooks at the top level, custom hooks prefixed with use.
• Don't reach for useMemo / useCallback unless the compiler can't reason about it.
• Async data flows through Suspense + use() whenever practical.
• Effects sync side effects to props/state, not state to state.

Banned

• Class components, componentDidMount, forceUpdate.
• Storing derived state.
• Mutating props.
• Using array indices as React keys for reorderable lists.