What problem does it solve?
Provides a comprehensive, machine-friendly checklist to detect and fix common performance and correctness issues in React and Next.js codebases, reducing waterfalls, oversized bundles, and server-side inefficiencies that hurt real user metrics.
Core Features & Use Cases
- Rule-driven guidance: 69 explicit rules across eliminating waterfalls, bundle-size reduction, server- and client-side data fetching, re-render and rendering optimizations, JavaScript micro-optimizations, and advanced patterns.
- Agent-optimized examples: Clear incorrect/correct code patterns and impact descriptions designed for automated refactoring, code review, and LLM-driven fixes.
- Practical applications: Use for code reviews, automated linting/refactoring suggestions, performance audits, educating teams on patterns, and writing or verifying Server Actions, API routes, and RSC boundaries.
Quick Start
Analyze a React/Next.js code path and produce a prioritized list of performance fixes with concrete code changes mapped to the relevant vercel-react-best-practices rules.