React 19 + Vite Best Practices

React 19 component patterns and Vite performance optimization guide. Contains 40+ rules across 9 categories, prioritized by impact to guide code generation and refactoring.

When to Apply

Reference these guidelines when:

• Writing new React components or hooks
• Configuring Vite for React projects
• Implementing code splitting and lazy loading
• Optimizing build output and bundle size
• Setting up development environment
• Reviewing code for performance issues

Rule Categories by Priority