React Expert
Helps the agent build, debug and modernize React 18+ and Next.js components, hooks and state using current best practices.
- Repository
- Jeffallan/claude-skills
- Stars
- 12,176
- Licence
- MIT
- Files
- 8 files
What it does
This skill gives an AI agent a specialist playbook for React work. Once installed, when you ask for React components, hooks, state management, performance fixes, or migrations from class components, the agent follows its patterns: TypeScript with strict typing, proper effect cleanup, stable keys, error boundaries, Suspense, and React 19 features like useActionState. It also loads detailed reference notes on Server Components, testing with React Testing Library, and performance before writing code.
Great for
- Frontend developers building or maintaining React 18+ or Next.js App Router projects
- Teams migrating older class-based React components to hooks or Server Components
- Developers who want consistent, type-safe React code produced by an agent
Skip it if
- Non-React frontends such as Vue, Angular or Svelte, where the patterns would not apply
- Projects that cannot run TypeScript or the tsc check, since the workflow expects it
- Anyone expecting it to verify correctness in production; its guidance is advisory and its examples are simplified
Try asking
- “Create a reusable React component with TypeScript props for a searchable user table”
- “Convert this class component with lifecycle methods to a functional component with hooks”
- “Add a form using React 19 useActionState with a pending state”
- “Find why my React list re-renders too often and suggest memoization fixes”
Install in 3 steps
- 1
Download the skill
The ZIP contains the 8 original files, the MIT licence and an attribution note.
react-expert.zip - 2
Add it to your agent
Claude Code (all projects)
mkdir -p ~/.claude/skills && unzip react-expert.zip -d ~/.claude/skills/Claude Code / Agent SDK (this project only)
mkdir -p .claude/skills && unzip react-expert.zip -d .claude/skills/Claude apps (web/desktop): Settings → Capabilities → Skills → Upload skill, and choose the ZIP.
- 3
Ask for the task
No special command needed — the agent reads the skill's description and loads it when your request matches. Try one of the prompts above.
Get better results
- Point the agent at your project's tsconfig and package.json so it matches your existing versions and libraries.
- Ask it to run tsc --noEmit and your tests, since the skill's workflow asks for this and it catches issues the guidance alone cannot.
- Review generated code before merging, especially effects, server actions and any data-handling logic.
What's inside
- references/hooks-patterns.md
- references/migration-class-to-modern.md
- references/performance.md
- references/react-19-features.md
- references/server-components.md
- references/state-management.md
- references/testing-react.md
- SKILL.md
Redistributed unmodified from Jeffallan/claude-skills under the MIT licence. The assessment was drafted with AI from the skill's files on 2026-10-29. Skills can instruct your agent to run code — read SKILL.md and any scripts before installing.