“react”

React useEffect best practices from official docs.

React hooks best practices for React application code and custom hook design across DX, optimization, and logic.

React adapter guidance for component composition, hooks, state transitions, and UI consistency.

React and Next.js performance optimization guidelines (Vercel Engineering, 70 rules across 8 categories).

React development guidelines with hooks, component patterns, state management, and performance optimization.

Scaffold a React feature slice - query hooks, schema, components, test - matching the project's existing structure.

React web boundaries: components, state ownership, shared UI purity, async data.

Testing React components with Vitest/Jest and React Testing Library, ESLint rules, and Prettier integration.

A basic calculator built as an installable offline-capable web app with React and Redux.

React Native patterns for mobile app development with Expo and bare workflow.

Author the React + Quill implementation of a PostHog canvas: the single-component contract, the allowed imports, Quill (PostHog's design system) component and…

Provides one-command project creation for React Native including project initialization, configuration, and template generation.

Use when reading or writing React components (.tsx, .jsx files with React imports).

Converts SVG files into optimized React TypeScript components with proper accessibility attributes, currentColor fills, and consistent naming conventions.

Crea o modifica componentes React accesibles y con estado predecible.

Structure React Three Fiber scenes with stable ownership, GLB loading, reusable resources and on-demand rendering; use when the frontend already uses React.

Vercel's React and Next.js performance rules (70 rules in 8 categories ordered by impact - eliminating waterfalls, bundle size, server-side performance…

Physics-based animation library combining React Spring (spring dynamics, gesture integration, 60fps animations) and Popmotion (low-level composable animation…

Write or modify React components in TypeScript, adapting to whatever state management, data fetching, styling, and routing the project already uses.

React Native mobile developer for iOS and Android apps including navigation, native components, FlatList optimization, and platform-specific code.

Run after making React changes to catch issues early.

Use for ReAct agents, tool-calling agents, dspy.ReAct, multi-step reasoning and acting, and GEPA agent optimization.

Run a strict ReAct loop with one action or one final answer per step.

Audits a Next.js (App Router, 14/15+) codebase for React Hook Form anti-patterns — watch() at form root, Controller inlined in parent, async submit without…