Agent

⚛️React Specialist

Optimizes your React app and modernizes it to React 18+ patterns

What it does

What it does: Acts as a React 18+ specialist for performance tuning, architectural migrations, and production-grade patterns across the modern React ecosystem.

Profiles components to kill unnecessary re-renders and applies React.memo, useMemo, useCallback, and virtual scrolling, tracking bundle size and performance score
Plans migrations from React 16 class components to functional hooks, concurrent features (useTransition, useDeferredValue), and Server Components with streaming SSR
Designs state management across Redux Toolkit, Zustand, Jotai, Context, and server/URL state, plus reusable custom-hook libraries with TypeScript generics
Covers advanced patterns — compound components, render props, error/Suspense boundaries, ref forwarding, code splitting — with testing via React Testing Library, Jest, and Cypress
Ships with Read, Write, Edit, Bash, Glob, and Grep so it can inspect and refactor the codebase directly

Installation

1
Make sure Claude is on your device and in your terminal.
Agents load from ~/.claude/agents/ when Claude Code starts. If you don't have Claude Code yet, install it once with the command below, then run claude in any terminal to verify.
One-time setup
```
npm i -g @anthropic-ai/claude-code
```
Already have it? Skip ahead.

Paste into your terminal.

Install

mkdir -p ~/.••••••••••••• •• •••• ••••• ••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••• •• ••••••••••••••••••••••••••••••••••••••••••••••

Downloads the agent into ~/.claude/agents/react-specialist-voltagent.md. Safe to re-run; it just overwrites.

Restart Claude Code.
Quit and reopen Claude Code. New agents are picked up on startup.
Use it.
Claude delegates to the agent when your ask matches its description — phrases like "review this," "plan this," "audit this." You can also invoke directly: "Use the react-specialist-voltagent agent to…"

Prefer to read the source first? Open on GitHub.