React Doctor
Checker that catches bad React patterns written by coding agents and reports issues to fix.
Updated
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Use cases
About React Doctor
React Doctor is listed in our coding category and is aimed at builders. Checker that catches bad React patterns written by coding agents and reports issues to fix. Pricing, as the maker states it: Free CLI (Modified MIT License). Maturity: Mature. We last checked the official link on 2026-10-19.
What is React Doctor?
React Doctor, from Million Software, runs deterministic checks on React code written by you or your coding agent and reports issues in state and effects, performance, architecture, security, accessibility and maintainability. It supports projects built with Next.js, Vite, Astro, TanStack, React Native and Expo.
You run a scan with npx react-doctor@latest, install it as a skill so Claude Code, Cursor, Codex or OpenCode can find and fix issues, or add it to CI to report issues each pull request introduces and block merges at a chosen severity. It can also record Chrome DevTools performance traces while you use a running app.
Sources: the official README and our directory listing, checked 2026-10-19. Official site: react.doctor.
Who is React Doctor for?
React teams and developers whose code is increasingly written by AI coding agents and who want an automated guardrail in the agent loop and in CI.
React Doctor at a glance
- Open source: Source-available, not OSI open source: Modified MIT License
- GitHub: millionco/react-doctor · 15,028 stars (as of Oct 21, 2026)
Key features
- Checks for state/effects, performance, security, accessibility and maintainability
- Agent skill for Claude Code, Cursor, Codex and OpenCode
- CI mode that blocks regressions in pull requests
- Runtime performance traces
- Rules configured in doctor.config.ts
React Doctor FAQ
What is React Doctor?
React Doctor, from Million Software, runs deterministic checks on React code written by you or your coding agent and reports issues in state and effects, performance, architecture, security, accessibility and maintainability. It supports projects built with Next.js, Vite, Astro, TanStack, React Native and Expo.
Who is React Doctor for?
React teams and developers whose code is increasingly written by AI coding agents and who want an automated guardrail in the agent loop and in CI.
Is React Doctor free?
React Doctor's pricing, as the maker states it: Free CLI (Modified MIT License). Check the official site for current plans.
Is React Doctor open source?
No. React Doctor's code is published under Modified MIT License, which is not an OSI-approved open-source licence.
Does React Doctor collect data?
The CLI collects crash reports and anonymous usage data; opt out with npx react-doctor@latest --no-telemetry.
What are alternatives to React Doctor?
Similar tools include jcode, Open SWE, TUIOS, Context Mode, mini-SWE-agent and Momentic.
React Doctor ratings and reviews
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Momentic
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