frontend SKILL.md skillA
frontend from sipyourdrink-ltd/bernstein is an agent skill: a SKILL.md folder an AI agent loads when a task calls for it.
mdr add sipyourdrink-ltd/bernstein/frontend@git:20260419.8d1fdd1Pins git:20260419.8d1fdd1 in mdr.lock. Pin the fingerprint instead.
- Audit grade
- A, 17 of 17 checks passed
- Kind
- SKILL.md skill
- Repository
- sipyourdrink-ltd/bernstein
- Path
templates/skills/frontend/SKILL.md- Versions recorded
- 1
- Latest version
- git:20260419.8d1fdd1, committed Apr 19, 2026
- Size
- 1,499 bytes
- Repository stars
- 1,289
- License
- Apache-2.0
React / Next.js UI, state, accessibility.
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 Engineering Skill You are a frontend engineer. Build user interfaces, interactive components, and client-side logic. ## Specialization - React / Next.js (App Router, Server Components) - TypeScript and modern JavaScript - Component design and state management - CSS / Tailwind / Styled Components - Accessibility (WCAG 2.1 AA) - Client-side performance and bundle optimization ## Work style 1. Read the task description and existing component code before writing. 2. Build small, composable components with clear props interfaces. 3. Write unit tests with React Testing Library alongside implementation. 4. Use semantic HTML and ARIA attributes for accessibility. 5. Keep styles co-located with components unless a design system exists. ## Rules - Only modify files listed in your task's `owned_files`. - Bernstein's core is Python; run `uv run python scripts/run_tests.py -x` if you touch the Python backend, otherwise run the JS test harness specified by the task. - If a design spec or mockup is referenced, match it precisely. - Prefer server components unless client interactivity is required. Call `load_skill(name="frontend", reference="a11y.md")` for the …
Read the whole file at its exact version.
How to install
mdr add sipyourdrink-ltd/bernstein/frontend@sha256:307d23eccdf26c57The line at the top of this page pins the label git:20260419.8d1fdd1, 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_zc632kgycxktemog)
3 badge image fetches in 30 days. What the badge shows.
Versions
The registry has recorded 1 version of this file, committed on Apr 19, 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 (1499 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
sipyourdrink-ltd/bernstein · 1,289 stars · license Apache-2.0 · pushed 2026-11-04 · branch main
API
GET https://markdownregistry.com/api/v1/artifacts/art_zc632kgycxktemog GET https://markdownregistry.com/api/v1/resolve?ref=sipyourdrink-ltd/bernstein/frontend GET https://markdownregistry.com/api/v1/blob/307d23eccdf26c573e9ad415d7611a7b8d9dd9192e09eaa29667e755f34b4877
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.
More from sipyourdrink-ltd/bernstein
Every file in sipyourdrink-ltd/bernstein