If you have ever inherited a messy React codebase, or simply wondered whether your own project has drifted into bad patterns over time, React Doctor is a tool worth knowing about. One command, a score between 0 and 100, and a list of problems to fix. That is the pitch. Let us dig into whether it lives up to it. What Is React Doctor? React Doctor is an open-source CLI tool from the team behind Million.js. It scans your React project and produces a health score alongside a structured list of issues. Think of it as a linter on steroids — one that understands React patterns specifically, rather than just generic JavaScript rules. npx -y react-doctor@latest . Enter fullscreen mode Exit fullscreen mode That is all it takes to run it. No installation, no config file required to get started. How It Works Under the Hood When you run React Doctor against your project, it does two things in parallel. 1.…