Also documents all classic hooks (useState, useEffect, useLayoutEffect, useRef, useImperativeHandle, useMemo, useCallback, useId, useSyncExternalStore) and React 18→19 breaking changes (ref as a prop instead of forwardRef, <Context value={}> instead of <Context.Provider>). This is the core React hooks/features skill — for global state see react-state, for forms see react-forms, and for SOLID architecture rules see solid-react.

React 19.3 Core Features

Agent Workflow (MANDATORY)

Before ANY implementation, spawn 3 agents in parallel, one Agent call each with a name:

1. fuse-ai-pilot:explore-codebase - Analyze existing React patterns and component structure
2. fuse-ai-pilot:research-expert - Verify latest React 19.3 docs via Context7/Exa
3. mcp__context7__query-docs - Check use(), useOptimistic, useActionState, Activity patterns

After implementation, run fuse-ai-pilot:sniper for validation.