runtime-ux-audit SKILL.md skillA
runtime-ux-audit from ethany33/atelier is an agent skill: a SKILL.md folder an AI agent loads when a task calls for it.
mdr add ethany33/atelier/runtime-ux-audit@git:20260923.08d5572Pins git:20260923.08d5572 in mdr.lock. Pin the fingerprint instead.
- Audit grade
- A, 17 of 17 checks passed
- Kind
- SKILL.md skill
- Repository
- ethany33/atelier
- Path
plugins/atelier/skills/runtime-ux-audit/SKILL.md- Versions recorded
- 2
- Latest version
- git:20260923.08d5572, committed Sep 23, 2026
- First version recorded
- Sep 22, 2026
- Size
- 12,550 bytes
- Repository stars
- 8
- License
- MIT
Audit a URL or local HTML file for runtime UX problems that WCAG checks miss. Back/forward cache blockers, view transitions, speculation rules, INP and main-thread smells, dialog, popover, z-index and motion issues, and mobile viewport bugs (100vh, safe areas, tap targets, scroll hijacking). Static pass for CI; --dynamic adds Chromium INP, bfcache and focus probes. Exits 1 on critical or serious.
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
## Run
`node "${CLAUDE_PLUGIN_ROOT}/bin/atelier" ux <url|file> [--dynamic] [--out dir] [--brand path]`
```bash
node "${CLAUDE_PLUGIN_ROOT}/bin/atelier" ux dist/index.html
node "${CLAUDE_PLUGIN_ROOT}/bin/atelier" ux https://staging.example.com --dynamic --out ux-report
node "${CLAUDE_PLUGIN_ROOT}/bin/atelier" ux dist/index.html --brand .atelier/brand.json --area mobile,panels
```
JS API (the module path goes in as an argument and through `pathToFileURL`, so the import works with Windows, macOS and Linux paths):
```bash
node --input-type=module -e "const { pathToFileURL } = await import('node:url'); const m = await import(pathToFileURL(process.argv[1]).href); const r = await m.auditRuntimeUx({ url: 'dist/index.html', outDir: 'ux-report' }); console.log(r.pass, r.summary.rules, r.metrics.inpP75Ms);" "${CLAUDE_SKILL_DIR}/index.mjs"
```
`auditRuntimeUx(opts)` resolves to `{ violations: { critical, serious, moderate, minor, all }, incomplete, metrics, summary, pass, raw, markdown, reportPath, rawPath }`. It throws a `UxAuditError` (`code`, `hint`) when the audit cannot run. Also exported: `main(argv)` (the CLI; returns the exit code), `RULES`, `UxAuditError`.
## Options
…Read the whole file at its exact version.
How to install
mdr add ethany33/atelier/runtime-ux-audit@sha256:ef4b87d9c97d98d7The line at the top of this page pins the label git:20260923.08d5572, 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_d5qazq224ioinlx6)
4 badge image fetches in 30 days. What the badge shows.
Versions
The registry has recorded 2 versions of this file, between Sep 22, 2026 and Sep 23, 2026, more than one a day.
| version | committed | commit | size | audit | |
|---|---|---|---|---|---|
| git:20260923.08d5572 latest | 2026-09-23 | 08d5572 | 12,550 B | A | view · diff |
| git:20260922.332506f | 2026-09-22 | 332506f | 11,020 B | A | view |
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 (12550 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
ethany33/atelier · 8 stars · license MIT · pushed 2026-10-14 · branch main
API
GET https://markdownregistry.com/api/v1/artifacts/art_d5qazq224ioinlx6 GET https://markdownregistry.com/api/v1/resolve?ref=ethany33/atelier/runtime-ux-audit GET https://markdownregistry.com/api/v1/blob/ef4b87d9c97d98d7ccfec296621df0a32b1b65d53857d56cc1cc326567b5b254
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.