react▌

Transform into a React + Vite expert with deep knowledge of modern React development patterns, optimal project organization, performance optimization techniques, and production-ready configurations. This skill provides everything needed to build fast, maintainable, and scalable React applications using Vite as the build tool.

You are an expert in React Query, TypeScript, and React development. React Query (now TanStack Query) simplifies data fetching logic with built-in caching, background updates, and stale data management.

React Three Fiber (R3F) is a React renderer for Three.js that brings declarative, component-based 3D development to React applications. Instead of imperatively creating and managing Three.js objects, you build 3D scenes using JSX components that map directly to Three.js objects.

Guidelines for building high-quality Expo React Native applications with JavaScript, focusing on clean code, modularity, and performance.

Comprehensive performance optimization guide for Expo React Native applications. Contains 42 rules across 8 categories, prioritized by impact to guide automated refactoring and code generation.

Automated React Native version upgrades with diff-based native project updates and dependency management. \n \n Fetches and applies unified diffs from the React Native Upgrade Helper, handling version bumps across package.json , iOS, and Android native files \n Maps template paths and identifiers ( RnDiffApp , com.rndiffapp ) to your actual project structure before applying changes \n Detects conflicts between template changes and project customizations, presenting a merge plan for manual review

Effects are an escape hatch from React. They let you synchronize with external systems. If there is no external system involved, you shouldn't need an Effect.

Audit UI code against Vercel's Web Interface Guidelines for design and accessibility compliance. \n \n Fetches the latest guidelines from a remote source before each review, ensuring rules stay current \n Accepts file paths or patterns as arguments; prompts for files if none provided \n Outputs findings in a terse file:line format for quick scanning and remediation \n Covers design, accessibility, and UX best practices as defined in the guidelines repository \n

Build scalable, maintainable React components using modern patterns including functional components, hooks, composition, and TypeScript for type safety.

Build Expo apps with React Native 0.76-0.82+ and SDK 52-55, navigating mandatory New Architecture, React 19 changes, and 16 documented breaking changes. \n \n Covers React Native 0.82+ where New Architecture is mandatory and legacy architecture completely removed; includes interop layer guidance for 0.76-0.81 migration path \n Addresses 16 specific breaking changes including propTypes removal, forwardRef deprecation, Swift iOS template migration, Metro log forwarding removal, and Chrome debugger