Your agent writes bad React, this catches it.
React Doctor deterministically scans your codebase and finds issues across state & effects, performance, architecture, security, and accessibility.
Works across React frameworks and React-enabled sites - Next.js, Vite, Astro, TanStack, React Native, Expo, you name it.
Scans JavaScript, TypeScript, and Astro source files plus JavaScript in standard inline <script> blocks in .html files.
Install
1. Quick start
Run this at your project root to get an audit.
npx react-doctor@latest
https://github.com/user-attachments/assets/07cc88d9-9589-44c3-aa73-5d603cb1c570
2. Install for agents
Once you have an audit, you can install the skill for your coding agent to learn from the issues and fix them in the future.
npx react-doctor@latest install
Works with Claude Code, Cursor, Codex, OpenCode, and many more.
3. Run in CI
React Doctor reviews every pull request and reports only the issues your change introduced, not your existing backlog. Set it up with one command:
npx react-doctor@latest ci install
This adds the workflow, scans every pull request, and posts a summary comment. Change the gate, scan scope, and comments anytime with react-doctor ci config, and bump the action with react-doctor ci upgrade. GitHub Actions is fully supported; GitLab CI gets a gate-only scaffold.
4. Configure rules
You can configure which rules to run and how to run them in doctor.config.ts.
Telemetry
The CLI reports crashes, basic run traces, and anonymous usage counters to Sentry to help us fix bugs and prioritize work.
We collect:
- Environment: CLI version, platform, Node version
- Invocation: which command, package manager, and run context (whether it's local vs. CI vs. coding agent)
- Project shape: framework, React version, TypeScript, project size (NO file contents)
- Rules fired: rule names and counts only (e.g.
react-doctor/no-array-index-as-key) (NO code or specific findings) - De-minified React Doctor CLI stack traces
To opt out, run: npx react-doctor@latest --no-telemetry
Contributing
MIT-licensed