Borrowing it
Nothing to install: this file belongs to irahardianto/rugged-gemini. Take a copy, put it at the same path in your own repository, and replace the rules that are about this project with yours.
curl -O https://raw.githubusercontent.com/irahardianto/rugged-gemini/main/.gemini/skills/frontend-design/SKILL.mdgit clone --depth 1 https://github.com/irahardianto/rugged-geminiWrote this? Show the measurements
A badge with what this costs and how it scanned, read live from this page, so it follows the numbers instead of freezing them. Markdown for a README, HTML for a documentation site or a project page.
[](https://agentmods.dev/skills/irahardianto/rugged-gemini/frontend-design)<a href="https://agentmods.dev/skills/irahardianto/rugged-gemini/frontend-design"><img src="https://agentmods.dev/badge/skills/irahardianto/rugged-gemini/frontend-design/github.svg" alt="Measured on agentmods" height="20"></a>Or the 80×15 button, for a site that already has a row of RSS and ATOM ones. Only the verdict fits; the numbers stay here.
<a href="https://agentmods.dev/skills/irahardianto/rugged-gemini/frontend-design"><img src="https://agentmods.dev/badge/skills/irahardianto/rugged-gemini/frontend-design.svg" alt="Reviewed on agentmods" width="80" height="20"></a>What it costs to keep this loaded
Counted locally with the o200k_base tokenizer, which is exact for GPT models; Claude uses its own tokenizer and its counts differ. Treat this as one consistent yardstick across the catalogue rather than a bill. Prices are per million input tokens.
| Model | Per session | Once invoked |
|---|---|---|
| Fable 5.1 | $0.00040 | $0.01187 |
| Opus 5 | $0.00020 | $0.00593 |
| Sonnet 5 | $0.00008 | $0.00237 |
| Haiku 4.5 | $0.00004 | $0.00119 |
Grade A, and why
frontend-design scanned grade A with 0 findings against 26 rules in 11 categories — prompt injection, anti-refusal, data exfiltration, privilege escalation, supply chain, agent snooping, system-prompt leakage, SSRF and excessive agency — measured 10d ago.
A static scan of the body, not an audit. Every finding is printed with the line that produced it so you can judge whether it matters here. A mod is markdown that instructs an agent; that is exactly why what it instructs is worth reading.
Nothing flagged
None of the 26 patterns this scan looks for appear in this file: no shell pipes, no recursive deletes, no credential paths, no hidden text, no instruction-override or anti-refusal phrasing, no agent-config snooping. That is not a guarantee, it is the absence of the things that are checkable.
How it starts
The opening of the file, as written. The whole thing — 108 lines — stays where its author put it; the contents beside it link to each section on GitHub.
Frontend Design Skill
Create distinctive, production-grade interfaces avoiding generic "AI slop." Follow phased workflow with concrete reference material.
Phase 1: Design Direction
Before code, commit to aesthetic direction:
- What problem? Who uses it? What's memorable?
- Choose ONE: Brutally minimal · Maximalist · Retro-futuristic · Organic · Luxury · Playful · Editorial · Brutalist · Art deco · Soft/pastel · Industrial · Sci-fi/cyberpunk
CRITICAL: Fresh choice every generation. Vary themes, fonts, palettes.
Deliverables: named direction, font pairing (references/typography.md), palette (references/color-palettes.md), layout (references/layout-compositions.md).
Phase 2: Token System
- Copy
examples/design-tokens.cssinto project - Override palette with chosen HSL values
- Override
--font-display/--font-body - Add Google Fonts with preconnect:
<link rel="preconnect" href="https://fonts.googleapis.com">
<link rel="preconnect" href="https://fonts.gstatic.com" crossorigin>
<link rel="stylesheet" href="[your @import from typography.md]">
Deliverables: tokens in place, all colors/spacing/typography/shadows/motion as CSS vars. Zero hardcoded values.
Phase 3: Build
Load framework module:
| Target | Module |
|---|---|
| Vue 3 | frameworks/vue.md |
| HTML + CSS/JS | frameworks/html-css.md |
Principles:
- Components from chosen layout compositions
- Motion patterns (
references/motion-patterns.md) at: page load, scroll reveals, hover - Animations via
transform/opacityonly — never width/height/top/left - Every interactive element: hover state AND focus-visible state
- Stagger entrance animations for groups
Mobile (references/mobile-responsive.md): mobile-first CSS, tap targets ≥44×44px, 100svh not 100vh, env(safe-area-inset-*) on fixed elements. Test 375/768/1280px.
PWA (references/pwa-checklist.md): manifest.json, icons (192+512+maskable), service worker, offline fallback. Vite: prefer vite-plugin-pwa.
What ships with it
10 files beside SKILL.md in the same directory: the scripts, references and assets a skill reads on demand. Not counted in the per-session cost; read them before you install if any of them is executable.
- examples/design-tokens.css 18 KB
- frameworks/html-css.md 11 KB
- frameworks/vue.md 11 KB
- references/color-palettes.md 11 KB
- references/layout-compositions.md 9.2 KB
- references/mobile-responsive.md 20 KB
- references/motion-patterns.md 12 KB
- references/pwa-checklist.md 23 KB
- references/typography.md 16 KB
- scripts/visual-audit.sh 18 KB runs code
What this file has done since we first saw it
Hashed on every crawl. A supply-chain change to an agent config is a question of when, not whether, so the history is kept rather than the latest state alone.
- 10d ago First seen · 108 lines · 40 tokens per session scan A 69c73adfc149
frontend-design is a skill published in the GitHub repository irahardianto/rugged-gemini (5 stars, last pushed 4mo ago), licensed MIT. It adds 40 tokens to every session and 1,187 once invoked, about $0.0002 per session on Opus 5. A static security scan graded it A with 0 findings. No closer match exists in the catalogue, so it is treated as the original; first seen 2026-08-31.
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