you-might-not-need-a-memo

Fix React.memo anti-patterns by analyzing your code scope to detect unnecessary component wrapping, then apply concrete fixes like moving state down or lifting content up to reduce re-renders and improve UI performance.

Use useMemo for expensive computations, but inline compute when costs are low or dependencies change constantly. Analyzing your code scope identifies useMemo anti-patterns and proposes simplified calculations or dependency fixes for better React performance.

Analyze a whole React repository for memoization issues by applying the Skill across the entire codebase or src/ directory. It scans diffs, PRs, or full repos to report detected anti-patterns with actionable changes and safety notes.

Yes, the memoization analyzer works on pull requests and code diffs. It can be applied across various scopes including PRs, individual diffs, src/ folders, or the whole repository to detect and fix useMemo and React.memo anti-patterns.

Wrapping a slow component in React.memo is an anti-pattern when state can be moved down instead. The analyzer detects this and suggests moving state or lifting content up to preserve behavior while improving performance without unnecessary memoization.

Fixing useMemo with constantly-changing dependencies is limited because memoization provides no benefit when dependencies change every render. The analyzer detects this anti-pattern and proposes simplified inline calculations to avoid unnecessary overhead.