expect
Expect tests your agent's code in a real browser.
1 MCP3.6k
@millioncoDevelopment
Plugin
react-doctor
Your agent writes bad React. This catches it.
Plugin Signal59/100Fair
maintained100
capable34
documented1
adopted89
Claude Code
$ npx -y skills add millionco/react-doctor --agent claude-code
Codex
$ npx skills add millionco/react-doctor -a codex
Cursor
$ npx skills add millionco/react-doctor -a cursor
Gemini CLI
$ npx skills add millionco/react-doctor -a gemini-cli
GitHub Copilot
$ npx skills add millionco/react-doctor -a github-copilot
OpenCode
$ npx skills add millionco/react-doctor -a opencode
Windsurf
$ npx skills add millionco/react-doctor -a windsurf
Stats
15,117
Stars
499
Forks
Active
Maintenance
TypeScript
Language
Last commit
Created
What's inside
4 Skills
/improve-reactSurvey a whole React codebase as a senior React engineer, using React Doctor's scan as evidence, then produce a prioritized audit and self-contained implementation plans for other agents (or cheaper models) to execute. Read-only on source code — it plans improvements, it does/improve-threejsAudit and fix Three.js and React Three Fiber apps for frame-loop performance, GPU memory leaks, scene-graph correctness, and visual defects like z-fighting, shadow acne, wrong color space, and broken resize handling. Uses React Doctor as the scanning engine plus a visual rubric/performanceDiagnose React runtime performance with React Doctor traces, live render outlines, Long Animation Frames, interaction timing, and component render evidence. Use when invoked as `/performance` for a slow interaction, unexpected re-renders, or a measured before-and-after/react-doctorUse when finishing a feature, fixing a bug, before committing React code, or when the user types `/doctor`, asks to scan, triage, or clean up React diagnostics. Covers lint, accessibility, bundle size, architecture. Includes a regression check and a full local-triage workflow
README
packages/react-doctor/README.md
Stars on GitHub
Momentum
- stars in total
- 15.1k
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@facebookQuestions about react-doctor.
Install it with the command on its page. It includes improve-react, improve-threejs, performance. Its skills do not fire on their own yet. Free and open source.
- What is react-doctor?
- millionco/react-doctor is a plugin that catches bad React code written by an agent. It ships skills for auditing React codebases and diagnosing runtime performance, useful before committing React code.
- How do I install react-doctor?
- Run these in Claude Code: npx -y skills add millionco/react-doctor --agent claude-code. Then prompt normally.
- Does react-doctor auto-invoke its skills?
- Not yet. It is indexed on Flowy as a plain plugin.
- Is react-doctor free?
- Yes. Flowy is free and open source, with nothing gated. You can read every skill in full before you install.
- Which coding agents can use react-doctor's skills?
- react-doctor installs in Claude Code, and its skills also install in Codex, Cursor, Gemini CLI, GitHub Copilot, OpenCode and Windsurf with the skills CLI. Each skill's page has the install command. Flowy's auto-invocation, which fires a skill when your prompt matches, runs in Claude Code only.
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