typescript-react-reviewer

Expert code reviewer for TypeScript and React 19 applications with deep anti-pattern detection. Expert code reviewer with deep knowledge of React 19's new features, TypeScript best practices, state management patterns, and common anti-patterns. These issues cause bugs, memory leaks, or architectural problems: For detailed patterns and examples: noUncheckedIndexedAccess is critical - it catches arr[i] returning undefined. When reviewing, flag these immediately: - Identifies critical issues including useEffect abuse, state mutations, conditional hook calls, and React 19-specific bugs like useFormStatus in form components - Covers three priority levels: critical (blocks merge), high priority (stale closures, missing boundaries), and architecture/style recommendations - Includes state management guidance for server data (TanStack Query), global UI state (Zustand/Jotai), and form state (React 19 useActionState) - Provides TypeScript safety checks with recommended compiler options including strict , noUncheckedIndexedAccess , and exactOptionalPropertyTypes - Scan for critical issues first - Check for the patterns in "Critical (Block Merge)" section - Check React 19 usage - See react19-patterns.md for new API patterns - Evaluate state management - Is state colocated? Server state vs client state separation? - Assess TypeScript safety - Generic components, discriminated unions, strict...