frontend-ui-engineering SKILL.md skillA
frontend-ui-engineering from addyosmani/agent-skills is an agent skill: a SKILL.md folder an AI agent loads when a task calls for it.
mdr add addyosmani/agent-skills/frontend-ui-engineering@git:20261029.f97d842Pins git:20261029.f97d842 in mdr.lock. Pin the fingerprint instead.
- Audit grade
- A, 17 of 17 checks passed
- Kind
- SKILL.md skill
- Repository
- addyosmani/agent-skills
- Path
skills/frontend-ui-engineering/SKILL.md- Versions recorded
- 13
- Latest version
- git:20261029.f97d842, committed Oct 29, 2026
- First version recorded
- Apr 11, 2026
- Size
- 11,950 bytes
- Repository stars
- 112,362
- License
- MIT
Builds production-quality, accessible, responsive user-facing UIs. Use when building or modifying interfaces and pages, creating components, implementing layouts, meeting WCAG accessibility requirements, managing state, or when the output needs to look and feel production-quality rather than AI-generated.
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 Engineering
## Overview
Build production-quality user interfaces that are accessible, performant, and visually polished. The goal is UI that looks like it was built by a design-aware engineer at a top company — not like it was generated by an AI. This means real design system adherence, proper accessibility, thoughtful interaction patterns, and no generic "AI aesthetic."
## When to Use
- Building new UI components or pages
- Modifying existing user-facing interfaces
- Implementing responsive layouts
- Adding interactivity or state management
- Fixing visual or UX issues
## Component Architecture
### File Structure
Colocate everything related to a component:
```
src/components/
TaskList/
TaskList.tsx # Component implementation
TaskList.test.tsx # Tests
TaskList.stories.tsx # Storybook stories (if using)
use-task-list.ts # Custom hook (if complex state)
types.ts # Component-specific types (if needed)
```
### Component Patterns
**Prefer composition over configuration:**
```tsx
// Good: Composable
<Card>
<CardHeader>
<CardTitle>Tasks</CardTitle>
</CardHeader>
<CardBody>
…Read the whole file at its exact version.
How to install
mdr add addyosmani/agent-skills/frontend-ui-engineering@sha256:93a0ebffbb607534The line at the top of this page pins the label git:20261029.f97d842, 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_ycml4fk7odklhrwl)
4 badge image fetches in 30 days. What the badge shows.
Versions
The registry has recorded 13 versions of this file, between Apr 11, 2026 and Oct 29, 2026, about one every 17 days.
| version | committed | commit | size | audit | |
|---|---|---|---|---|---|
| git:20261029.f97d842 latest | 2026-10-29 | f97d842 | 11,950 B | A | view · diff |
| git:20261029.2ba5de2 | 2026-10-29 | 2ba5de2 | 11,775 B | A | view · diff |
| git:20261024.d14cf2d | 2026-10-24 | d14cf2d | 11,735 B | A | view · diff |
| git:20261019.6720a51 | 2026-10-19 | 6720a51 | 11,896 B | A | view · diff |
| git:20261015.081b915 | 2026-10-15 | 081b915 | 11,761 B | A | view · diff |
| git:20261003.3e1e0a2 | 2026-10-03 | 3e1e0a2 | 11,721 B | A | view · diff |
| git:20260827.e778fc6 | 2026-08-27 | e778fc6 | 11,712 B | A | view · diff |
| git:20260816.90d7d14 | 2026-08-16 | 90d7d14 | 11,760 B | A | view · diff |
| git:20260807.91d4d07 | 2026-08-07 | 91d4d07 | 10,711 B | A | view · diff |
| git:20260707.13ca1de | 2026-07-07 | 13ca1de | 10,705 B | A | view · diff |
| git:20260417.cea2f38 | 2026-04-17 | cea2f38 | 10,639 B | A | view · diff |
| git:20260416.0feb09a | 2026-04-16 | 0feb09a | 10,586 B | A | view · diff |
| git:20260411.0bc1f61 | 2026-04-11 | 0bc1f61 | 10,523 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 (11950 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
addyosmani/agent-skills · 112,362 stars · license MIT · pushed 2026-10-31 · branch main
API
GET https://markdownregistry.com/api/v1/artifacts/art_ycml4fk7odklhrwl GET https://markdownregistry.com/api/v1/resolve?ref=addyosmani/agent-skills/frontend-ui-engineering GET https://markdownregistry.com/api/v1/blob/93a0ebffbb6075340d85255ae50724bc5e5e19b0fcbf2ae5d5857b9c5ddf9498
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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