react-doctor
React Doctor scans your React codebase to identify security, performance, and architecture issues, providing a score and specific fixes.
Install
mkdir -p .claude/skills/react-doctor && curl -L -o skill.zip "https://agentskills.codes/api/skills/download/13942" && unzip -o skill.zip -d .claude/skills/react-doctor && rm skill.zipInstalls to .claude/skills/react-doctor
Activation
This is the description your AI agent reads to decide when to run this skill — the better it matches your request, the more reliably it fires.
Diagnose and fix React codebase health issues. Use when reviewing React code, fixing performance problems, auditing security, or improving code quality.Key capabilities
- →Scan React codebase for security issues
- →Identify state and effects related problems
- →Diagnose architecture issues in React components
- →Detect performance bottlenecks in React applications
- →Find correctness issues like array index as key
- →Analyze bundle size for optimization opportunities
How it works
The skill scans a React codebase for various issues across security, performance, correctness, and architecture, then provides a score and detailed diagnostics.
Inputs & outputs
When to use react-doctor
- →Improving component architecture
- →Optimizing bundle size
- →Fixing useEffect state bugs
- →Auditing React security
About this skill
React Doctor
Scans your React codebase for security, performance, correctness, and architecture issues. Outputs a 0-100 score with actionable diagnostics.
Usage
npx -y react-doctor@latest . --verbose
Workflow
- Run the command above at the project root
- Read every diagnostic with file paths and line numbers
- Fix issues starting with errors (highest severity)
- Re-run to verify the score improved
Rules (47+)
- Security: hardcoded secrets in client bundle, eval()
- State & Effects: derived state in useEffect, missing cleanup, useState from props, cascading setState
- Architecture: components inside components, giant components, inline render functions
- Performance: layout property animations, transition-all, large blur values
- Correctness: array index as key, conditional rendering bugs
- Next.js: missing metadata, client-side fetching for server data, async client components
- Bundle Size: barrel imports, full lodash, moment.js, missing code splitting
- Server: missing auth in server actions, blocking without after()
- Accessibility: missing prefers-reduced-motion
- Dead Code: unused files, exports, types
Score
- 75+: Great
- 50-74: Needs work
- 0-49: Critical
When not to use it
- →When the codebase is not a React project
- →When the user does not need to diagnose React-specific issues
Limitations
- →Specific to React codebases
- →Outputs a score from 0-100
- →Requires running from the project root
How it compares
This skill provides a complete, score-based diagnostic report for React-specific codebase health, unlike generic code linters.
Compared to similar skills
react-doctor side by side with the closest alternatives in the catalog.
| Skill | Installs | Updated | Safety | Difficulty |
|---|---|---|---|---|
| react-doctor (this skill) | 0 | 4mo | Review | Intermediate |
| roier-seo | 4 | 6mo | Review | Intermediate |
| senior-qa | 0 | 5mo | Review | Intermediate |
| full-review | 0 | 3mo | Review | Advanced |
Try saying
Example prompts that trigger this skill in your AI assistant.
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