react-doctor

Included with Lifetime

$97 forever

Use 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 that fetches the canonical playbook.

Web Dev

What this skill does


# React Doctor

Scans React codebases for security, performance, correctness, and architecture issues. Outputs a 0–100 health score.

## After making React code changes:

Run `npx react-doctor@latest --verbose --diff` and check the score did not regress.

If the score dropped, fix the regressions before committing.

## For general cleanup or code improvement:

Run `npx react-doctor@latest --verbose` (without `--diff`) to scan the full codebase. Fix issues by severity — errors first, then warnings.

## /doctor — full local triage workflow

When the user types `/doctor`, says "run react doctor", or asks for a full triage / cleanup pass (not just a regression check), fetch the canonical local-triage playbook and follow every step in it:

```bash
curl --fail --silent --show-error \
  --header 'Cache-Control: no-cache' \
  https://www.react.doctor/prompts/react-doctor-agent.md
```

The playbook is the single source of truth — a scan → filter → triage → fix → validate loop that edits the working tree directly (never commits, never opens PRs). Updating the prompt at its source updates every agent on its next fetch — no skill reinstall needed.

Pair it with the matching per-rule prompts at `https://www.react.doctor/prompts/rules/<plugin>/<rule>.md` (fetched on demand inside the playbook) so each fix uses the canonical, reviewer-tested recipe.

## Configuring or explaining rules

When the user wants to understand a rule, disagrees with one, or wants to disable / tune which rules run (not fix code), read [references/explain.md](references/explain.md) and follow it. Start with `npx react-doctor@latest rules explain <rule>`, then apply the narrowest control via `npx react-doctor@latest rules disable|set|category|ignore-tag …`, which edits your `doctor.config.*` (or `package.json#reactDoctor`).

## Command

```bash
npx react-doctor@latest --verbose --diff
```

| Flag        | Purpose                                       |
| ----------- | --------------------------------------------- |
| `.`         | Scan current directory                        |
| `--verbose` | Show affected files and line numbers per rule |
| `--diff`    | Only scan changed files vs base branch        |
| `--score`   | Output only the numeric score                 |

Files: 2

Size: 6.6 KB

Complexity: 26/100

Category: Web Dev

Source: https://github.com/millionco/react-doctor/tree/main/skills/react-doctor

Related in Web Dev

generating-lwc-components

Included

Lightning Web Components with PICKLES methodology and 165-point scoring. Use this skill when the user creates or edits LWC components, builds wire service patterns, or writes Jest tests for LWC. TRIGGER when: user creates/edits LWC components, touches lwc/**/*.js, .html, .css, .js-meta.xml files, or asks about wire service, SLDS, or Jest LWC tests. DO NOT TRIGGER when: Apex classes (use generating-apex), Aura components, or Visualforce.

Web Devscripts

tanstack-query

Included

Manage server state in React with TanStack Query v5. Set up queries with useQuery, mutations with useMutation, configure QueryClient caching strategies, implement optimistic updates, and handle infinite scroll with useInfiniteQuery. Use when: setting up data fetching in React projects, migrating from v4 to v5, or fixing object syntax required errors, query callbacks removed issues, cacheTime renamed to gcTime, isPending vs isLoading confusion, keepPreviousData removed problems.

Web Devscripts

document-processor-api

Included

Process documents with Nutrient DWS. Use when the user wants to generate PDFs from HTML or URLs, convert Office/images/PDFs, assemble or split packets, OCR scans, extract text/tables/key-value pairs, redact PII, watermark, sign, fill forms, optimize PDFs, or produce compliance outputs like PDF/A or PDF/UA. Triggers include convert to PDF, merge these PDFs, OCR this scan, extract tables, redact PII, sign this PDF, make this PDF/A, or linearize for web delivery.

Web Devscripts

nutrient-document-processing

Included

Web Devscripts

tanstack-query

Included

Manage server state in React with TanStack Query v5. Covers useMutationState, simplified optimistic updates, throwOnError, network mode (offline/PWA), and infiniteQueryOptions. Use when setting up data fetching, fixing v4→v5 migration errors (object syntax, gcTime, isPending, keepPreviousData), or debugging SSR/hydration issues with streaming server components.

Web Devscripts

accelint-nextjs-best-practices

Included

Next.js performance optimization and best practices. Use when writing Next.js code (App Router or Pages Router); implementing Server Components, Server Actions, or API routes; optimizing RSC serialization, data fetching, or server-side rendering; reviewing Next.js code for performance issues; fixing authentication in Server Actions; or implementing Suspense boundaries, parallel data fetching, or request deduplication.

Web Devscripts