frontend-ui SKILL.md skillA
frontend-ui from arcanada-one/datarim is an agent skill: a SKILL.md folder an AI agent loads when a task calls for it.
mdr add arcanada-one/datarim/frontend-ui@git:20261018.b3021eaPins git:20261018.b3021ea in mdr.lock. Pin the fingerprint instead.
- Audit grade
- A, 17 of 17 checks passed
- Kind
- SKILL.md skill
- Repository
- arcanada-one/datarim
- Path
skills/frontend-ui/SKILL.md- Versions recorded
- 2
- Latest version
- git:20261018.b3021ea, committed Oct 18, 2026
- First version recorded
- Oct 4, 2026
- Size
- 9,503 bytes
- Repository stars
- 16
- License
- MIT
Frontend UI checklist — CSS specificity, dark/light themes, visual testing, mobile responsiveness, i18n parity. Apply when editing HTML/CSS.
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
# Frontend UI — Checklist for Web Interface Tasks
Use when task modifies HTML, CSS, templates, or visual components. Catches recurring UI bugs missed by HTTP/syntax checks.
---
## 1. CSS Dark/Light Mode Specificity
**Rule:** Light mode = default. `.dark` class = override. Never use `:not(.dark)` selectors.
### Anti-Pattern (BREAKS dark mode)
```css
.dark .component { background: #0f172a; }
:not(.dark) .component { background: #ffffff; } /* ← matches <body>, <section>, <div> */
```
`:not(.dark)` matches any ancestor without the class, including `<body>` / `<section>` / `<div>`. Since these are also ancestors of `.component`, the selector ALWAYS matches, overriding `.dark` rules due to cascade order. Result: light colors leak into dark mode.
### Correct Pattern
```css
.component { background: #ffffff; } /* default = light */
.dark .component { background: #0f172a; } /* override = dark */
```
Checklist:
- [ ] Tailwind config sets `darkMode: 'class'`
- [ ] `<html class="dark">` initial state from localStorage
- [ ] No `:not(.dark)` selectors in any CSS file
- [ ] Light styles have no class prefix (they ARE the default)
…Read the whole file at its exact version.
How to install
mdr add arcanada-one/datarim/frontend-ui@sha256:b5863792ac1c1763The line at the top of this page pins the label git:20261018.b3021ea, 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_ccdanc3m7na576xt)
1 badge image fetches in 30 days. What the badge shows.
Versions
The registry has recorded 2 versions of this file, between Oct 4, 2026 and Oct 18, 2026, about one every 15 days.
| version | committed | commit | size | audit | |
|---|---|---|---|---|---|
| git:20261018.b3021ea latest | 2026-10-18 | b3021ea | 9,503 B | A | view · diff |
| git:20261004.8dfccd1 | 2026-10-04 | 8dfccd1 | 7,355 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 (9503 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
arcanada-one/datarim · 16 stars · license MIT · pushed 2026-10-29 · branch main
API
GET https://markdownregistry.com/api/v1/artifacts/art_ccdanc3m7na576xt GET https://markdownregistry.com/api/v1/resolve?ref=arcanada-one/datarim/frontend-ui GET https://markdownregistry.com/api/v1/blob/b5863792ac1c17637374dbb976ca7bce394aad22969ddcc75d90ae880209dfed
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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