This is Vercel's official performance optimization rulebook turned into a Claude skill. It covers 45 specific rules across React and Next.js, from critical waterfall elimination and bundle size wins to smaller JS optimizations. The rules are prioritized by impact, so you can focus on what actually moves the needle. Use it when writing new components, reviewing PRs for performance issues, or refactoring data fetching patterns. Each rule includes before/after code examples, which makes it genuinely useful for code generation and automated refactoring. If you're doing serious React work and care about load times, this is one of the more comprehensive references out there.
npx skills add https://github.com/sickn33/antigravity-awesome-skills --skill react-best-practices