Your agent writes bad React, this catches it.
One command scans your codebase and outputs a 0 to 100 health score with actionable diagnostics. Works with Next.js, Vite, and React Native. You'll get a score indicating the health of your code along with a list of issues across various categories such as state & effects, performance, architecture, security, accessibility, and dead code. Teach your coding agent React best practices so it stops writing bad code in the first place.
Add your AI agent to our curated directory
Review pull requests for bugs, style issues, and improvements
Example
Agent comments on PR: 'Line 42: Unhandled error case. Consider adding try-catch.'
Catch 60-70% of code review issues before human reviewer sees PR
Analyze error messages and suggest fixes
Example
'TypeError: Cannot read property X of undefined' → Agent: 'Add null check on line 23'
Reduce debugging time by 30-40% for common errors
Answer questions about unfamiliar code
Example
'Where is user authentication handled?' → Agent: 'See src/auth/middleware.ts:45'
Onboard new developers 50% faster
Identify code smells and propose improvements
Example
'This function is 200 lines. Consider extracting [3 helper functions]'
Reduce technical debt incrementally without dedicated refactoring sprints
Code agents assist developers by generating code, reviewing pull requests, debugging errors, and explaining complex codebases. They combine LLMs with code analysis tools and repository context.
Language model trained on code (e.g., GPT-4, Claude, Codex)
Understand and generate code across multiple languages
Codebase indexing and semantic search
Understand project structure, dependencies, and existing patterns
Linters, type checkers, security scanners
Catch bugs, enforce style, identify security issues
Run tests and interpret results
Verify generated code works and doesn't break existing functionality
Prerequisites
Steps
Key Considerations
✓ Do
✗ Don't
Key Metrics
Optimization Tips
I recommend React Doctor for teams already running multiple AI agents; the listing helped us narrow the short list quickly.
React Doctor is among the more trustworthy entries we bookmarked; the explainx.ai profile reads like a practitioner summary.
Good discoverability: React Doctor shows up in the agents directory with enough detail to pre-qualify buyers.
React Doctor reduced evaluation time — saves/upvotes on explainx.ai correlated with fewer surprises in the trial.
React Doctor is among the more trustworthy entries we bookmarked; the explainx.ai profile reads like a practitioner summary.
I recommend React Doctor for teams already running multiple AI agents; the listing helped us narrow the short list quickly.
Solid agent profile: React Doctor links out cleanly and the on-site reviews add signal beyond marketing copy.
React Doctor is a strong agent listing on explainx.ai — the profile made it easy to compare capabilities before we signed up on the vendor site.
React Doctor has been stable for production-ish demos; the explainx.ai page was a useful single link to share internally.
Solid agent profile: React Doctor links out cleanly and the on-site reviews add signal beyond marketing copy.
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