toy-box

Review Toy Box React components and hooks with React Compiler diagnostics, lifecycle tracing, and the project's React pattern catalog. Use whenever a task creates, modifies, or reviews a React component or React-based hook—including its relevant owners and consumers—or diagnoses resets, stale state, effects, rerenders, memoization, Jotai subscriptions, or React Query state.

Validate Toy Box behavior after significant changes using Playwright CLI across multi-client sessions, streaming flows, and terminal reconnect paths. Use when changes touch session hooks/reducers/adapters/cache/server functions, SSE or streaming transport logic, list/detail data fetching and invalidation behavior, terminal WebSocket/PTY logic, or route lifecycle/page visibility handling.