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 for all React frameworks and libraries - Next.js, Vite, TanStack, React Native, Expo, you name it.

Website →

Run this at your project root to get an audit.

npx react-doctor@latest

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.

Add the reusable GitHub Action from Marketplace to scan every pull request, show inline annotations, and leave findings where reviewers already look.

name: React Doctor

on:
  pull_request:
    types: [opened, synchronize, reopened, ready_for_review]

permissions:
  contents: read
  pull-requests: write
  issues: write

concurrency:
  group: react-doctor-${{ github.event.pull_request.number || github.ref }}
  cancel-in-progress: true

jobs:
  react-doctor:
    runs-on: ubuntu-latest
    steps:
      - uses: actions/checkout@v5
      - uses: millionco/react-doctor@v1

React Doctor scans the files changed in the pull request, emits inline annotations, blocks on error-level findings, and updates one sticky PR comment with the score and issue summary. The built-in GitHub token is used automatically; no secret or PAT is required. On forked PRs where GitHub withholds write permissions, the scan and annotations still run, but the sticky comment may be skipped.

Add GitHub Action →

Issues welcome!

MIT-licensed