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/react-doctor

@0abc286 official
by Brian Lovinbrianlovin/claude-config374 stars
33

Diagnose and fix React codebase health issues. Use when reviewing React code, fixing performance problems, auditing security, or improving code quality.

Ask your Agent

Use this Skill: https://skilld.dev/gh/brianlovin/claude-config/react-doctor

This session only. Nothing lands on disk.

SKILL.md

≈42 tokens always: the name and description. ≈318 when used: this file.

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

  1. Run the command above at the project root
  2. Read every diagnostic with file paths and line numbers
  3. Fix issues starting with errors (highest severity)
  4. 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

Source: SKILL.md on GitHub

Third-party checks

1 warning16d5 checks · Risk SAFE
  • Gen Agent Trust Hub16d

    The skill downloads and runs a React diagnostic tool via npx. While this is standard for its purpose, it creates a surface for indirect prompt injection when processing untrusted codebases.

  • Socket16d

    No alerts

  • Snyk16d

    Risk: LOW · No issues

  • Runlayer7mo

    1/1 file flagged

  • ZeroLeaks5mo

    Score: 93/100 · 2 sections analyzed

Provenance

Signed by skilld at 0abc286. This ties the file your Agent reads to that commit on GitHub. It does not review the instructions.

Last checked against GitHub 2 months ago.

Dormantupdated 8 months ago

Capability

version
1.0.0

Topics

README badge

README badge for brianlovin/claude-config/react-doctor

What it does

Scans React codebases for security, performance, correctness, and architecture issues across 47+ rules, returning a 0-100 score with file-level diagnostics. Covers hardcoded secrets, useState misuse, component composition problems, layout thrashing, Next.js patterns, bundle bloat, and accessibility gaps.

Generated from the current SKILL.md.

Frequently asked

What kinds of issues does React Doctor detect?
It scans for 47+ rules across security (hardcoded secrets, eval), state/effects (derived state in useEffect, missing cleanup), architecture (components inside components, giant components), performance (layout animations, transition-all), correctness (array index keys), Next.js patterns (missing metadata, client-side server data fetching), bundle size (barrel imports, moment.js), server actions (missing auth), accessibility (prefers-reduced-motion), and dead code.
Does this work with Next.js?
Yes. It includes specific rules for Next.js patterns like missing metadata, client-side data fetching that should be server-side, and async client components.
What does the score represent?
A 0-100 health score for your codebase. 75+ is great, 50-74 needs work, and 0-49 is critical. The skill outputs diagnostics with file paths and line numbers so you can fix issues in order of severity.
Can I run this on a monorepo or specific directories?
The command runs from your project root with npx react-doctor@latest . --verbose, but the SKILL.md does not specify monorepo or subdirectory targeting.

Generated from the current SKILL.md. These answers refresh after source changes.