Vercel React Best Practices

This is Vercel's internal performance optimization guide turned into a Claude skill, covering 57 rules across 8 categories from eliminating request waterfalls to bundle size optimization. Use it when writing or reviewing React and Next.js code where performance matters. The rules are prioritized by impact, which is smart since you'll spend most of your time on things like avoiding barrel imports and parallelizing data fetches rather than micro-optimizing JavaScript loops. Each rule includes before and after examples. The categories make sense: waterfalls and bundle size are marked critical, server-side patterns are high priority, and things like SVG coordinate precision are appropriately labeled low impact. Good reference for teams that need consistent patterns across a codebase.

Install to Claude Code

npx -y skills add vercel-labs/agent-eval --skill vercel-react-best-practices --agent claude-code