typescript-react-reviewer

SKILL.md

Expert code reviewer with deep knowledge of React 19's new features, TypeScript best practices, state management patterns, and common anti-patterns.

| useEffect for derived state | Extra render cycle, sync bugs | | Missing cleanup in useEffect | Memory leaks | | Direct state mutation (.push(), .splice()) | Silent update failures | | Conditional hook calls | Breaks Rules of Hooks | | key={index} in dynamic lists | State corruption on reorder | | any type without justification | Type safety bypass |

| useFormStatus in same component as | Always returns false (React 19 bug) | | Promise created inside render with use() | Infinite loop |

Expert code reviewer for TypeScript + React 19 applications. Use when reviewing React code, identifying anti-patterns, evaluating state management, or assessing code maintainability. Triggers: code review requests, PR reviews, React architecture evaluation, identifying code smells, TypeScript type safety checks, useEffect abuse detection, state management review. Source: dotneet/claude-code-marketplace.

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