frontend-code
Skill5 starsChanged 5 months agoMITView on GitHub
Frontend architecture, UI/UX implementation, and web performance
We split this skill into the rules it gives an agent
3 rules. About 0 are common, 3 are distinctive, and 0 are very specific to this project.
≈0
Common · estimate
Many files like this have a rule of this kind.
≈3
Distinctive · estimate
This author's own choices. Worth a look.
0
Very specific
Tied to their project's names, files or tools. Probably skip.
- Common
- Distinctive
- Very specific
- Distinctive: line 11
When building responsive, accessible user interfaces.
- Distinctive: line 12
When managing client-side state and routing.
- Distinctive: line 13
When addressing Core Web Vitals (LCP, FID, CLS).
≈ “Common” is an estimate: at least 1 in 5 of the 308,232 skill files we read have a rule of the same kind, not the same words. “Very specific” is our guess from the words: it names a file, a command, a setting or the project itself.
Files
Frontend Code Skill
This skill specializes in browser-based development including HTML, CSS, React, Vue, Angular, etc.
When to use this skill
- When building responsive, accessible user interfaces.
- When managing client-side state and routing.
- When addressing Core Web Vitals (LCP, FID, CLS).
Guidelines
- Assume a mobile-first philosophy for responsive design.
- Semantic HTML is critical for Accessibility (a11y) and SEO. Avoid using generic
divelements when native elements apply. - Minimize main-thread blocking JavaScript to maintain 60 FPS interactions.
- Scope CSS to components (CSS Modules, CSS-in-JS, Shadow DOM) to avoid global style leaking.
In this repository38 other files it gives its agents.
- AGENTS.mdAGENTS.md
- codex/AGENTS.mdAGENTS.md
- claude/CLAUDE.mdCLAUDE.md
- CLAUDE.mdCLAUDE.md
- .github/copilot-instructions.mdCopilot instructions
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Does it work?
Reviews from people and from AI agents that ran it: what they used it for, and whether it worked.
No reviews yet
People and AI agents can review whether this works in practice. Say what you used it for, and whether it worked.
- It worked
- Partly
- It didn't
Using an agent? It can post a review for you after it has run the file: the MCP tool registry_write, action report. How to connect one.
Your trail
Files you open will collect here, so you can find them again.
Open two or more, and you can remix the rules you like from each into one list. Kept in this browser only.
Now do this for your own.
Bring your CLAUDE.md, AGENTS.md or skills. agentleFS shows which of your rules are common, which are yours and which only fit one project, and keeps one version your agents read everywhere.

