react-doctor SKILL.md skillA
This file is byte-identical to the first copy the registry indexed. Same content hash, so the same checks give both the same grade.
react-doctor from gaia-harness/gaia is an agent skill: a SKILL.md folder an AI agent loads when a task calls for it.
mdr add gaia-harness/gaia/react-doctor@git:20261104.e4cb04dPins git:20261104.e4cb04d in mdr.lock. Pin the fingerprint instead.
- Audit grade
- A, 17 of 17 checks passed
- Kind
- SKILL.md skill
- Repository
- gaia-harness/gaia
- Path
.gaia/templates/react-doctor/SKILL.md- Versions recorded
- 1
- Latest version
- git:20261104.e4cb04d, committed Nov 4, 2026
- Size
- 2,525 bytes
- Repository stars
- 26
- License
- MIT
Use when finishing a React feature, fixing a React bug, or before committing React code, to check the react-doctor score did not regress. Also for a full React health scan, a focused UI design audit, a runtime trace of a slow React interaction, or explaining and tuning react-doctor rules.
Collected from public GitHub. Every version is saved exactly as it was and never changes. Install it at an exact version with the mdr tool, and every file is checked before it reaches your agent. The main file is checked against the SHA-256 fingerprint recorded here, and the others against the fingerprints GitHub keeps for its source commit. The automatic checks below grade the latest version, and the same checks always give the same file the same grade.
What the file says
# React Doctor
Scans React code for security, performance, correctness, accessibility and architecture issues, and scores it 0-100. GAIA pins the version every command below runs.
## After changing React code
```bash
npx -y react-doctor@{{REACT_DOCTOR_VERSION}} --verbose --scope changed
```
Check the score did not regress. If it dropped, fix the regressions before committing.
## Full scan
```bash
npx -y react-doctor@{{REACT_DOCTOR_VERSION}} --verbose
```
For general cleanup. Fix errors first, then warnings.
## UI design audit
```bash
npx -y react-doctor@{{REACT_DOCTOR_VERSION}} design --verbose
```
Runs only the design-tagged rules (composition, typography, interaction, accessibility, motion), including ones a general scan leaves opt-in.
## Runtime performance
For a vague "feels slow" or "janky" report, run this in an interactive terminal:
```bash
npx -y react-doctor@{{REACT_DOCTOR_VERSION}} scan <url> --format json
```
…Read the whole file at its exact version.
How to install
mdr add gaia-harness/gaia/react-doctor@sha256:ce9eddeee42fd70eThe line at the top of this page pins the label git:20261104.e4cb04d, which is what most people want. This one pins the sha256 fingerprint of the contents instead, so it survives a label being moved. Either way the exact version is written to mdr.lock, and mdr install downloads and checks those contents again, so it installs them exactly or stops with an error.
[](https://markdownregistry.com/a/art_l5ffoantypozee4x)
3 badge image fetches in 30 days. What the badge shows.
Versions
The registry has recorded 1 version of this file, committed on Nov 4, 2026.
Audit of the latest version
- pass: Frontmatter block present
- pass: Frontmatter declares a name
- pass: Frontmatter declares a description
- pass: Size between 200 bytes and 200 KB (2525 bytes)
- pass: No zero-width or bidi control characters
- pass: No instruction hidden inside an HTML comment
- pass: No link to an exfiltration or paste host
- pass: No credential-shaped string
- pass: No instruction to send local credentials anywhere
- pass: No text hidden with inline styles
- pass: No prompt-injection phrasing
- pass: No curl or wget piped into a shell
- pass: No recursive delete of root, home or parent
- pass: No instruction to read or print local credentials
- pass: No base64 blob over 200 characters
- pass: No link to a raw IP address
- pass: No script tag
Source
gaia-harness/gaia · 26 stars · license MIT · pushed 2026-11-08 · branch main
API
GET https://markdownregistry.com/api/v1/artifacts/art_l5ffoantypozee4x GET https://markdownregistry.com/api/v1/resolve?ref=gaia-harness/gaia/react-doctor GET https://markdownregistry.com/api/v1/blob/ce9eddeee42fd70e96e5ddfd68584da8dc3855c42cfa46c3f3bccf9923c0c7fa
Your AI assistant does the legwork. You hear about the deals worth your word. Hand yours the standing instructions at modelranch.com and it joins the network that reads files like this one.
Guides: the SKILL.md format and its required fields · what to check before you install a skill · how to pin a skill to an exact version · where to find agent skills · keeping a team on the same skills · which agent file does what.
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