React Best Practices Review (Performance-First)

Use this skill to turn “React feels slow / Next.js page is heavy / too many requests” into a repeatable, prioritized review.

This skill is intentionally built like a rule library:

• SKILL.md: how to review + how to search rules
• references/rules/*: one rule per file (taggable, sortable, easy to evolve)

When to apply

Use when:

• Building or refactoring React components
• Working in Next.js (App Router) on RSC boundaries, Server Actions, data fetching
• Reviewing PRs for performance regressions
• Bundle size increases / slow HMR / cold start issues
• UI jank / unnecessary re-renders / hydration issues