React State Management

Enforces Redux Toolkit patterns in React TypeScript projects. Auto-activates on: redux, state, slice, reducer, action, selector, thunk. Prevents prop drilling (>2 levels), useState for global state, direct state mutation, synchronous async logic. Ensures createSlice usage, typed selectors, RTK Query for API, immer-based reducers. Validates slice structure, naming conventions (camelCase actions), TypeScript types (RootState, AppDispatch). Targets: 0 prop drilling, 100% typed state, <50ms selector compute time.