Getting it into your agent
One page per mod, every tool's command on it. A separate URL per tool would split the same page into five that compete with each other.
npx skills add matteocervelli/llms --skill frontend-designgit clone --depth 1 https://github.com/matteocervelli/llmsWrote 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/matteocervelli/llms/frontend-design)<a href="https://agentmods.dev/skills/matteocervelli/llms/frontend-design"><img src="https://agentmods.dev/badge/skills/matteocervelli/llms/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/matteocervelli/llms/frontend-design"><img src="https://agentmods.dev/badge/skills/matteocervelli/llms/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 | $0.00018 | $0.01028 |
| Opus 5 | $0.00009 | $0.00514 |
| Sonnet 5 | $0.00004 | $0.00206 |
| Haiku 4.5 | $0.00002 | $0.00103 |
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 6d 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 — 139 lines — stays where its author put it; the contents beside it link to each section on GitHub.
Frontend Design Skill
Overview
This orchestrator skill composes five design dimensions with tech-specific implementations to create distinctive, production-grade frontends that avoid generic AI design patterns.
The 5 Dimensions:
- Typography – Typeface selection, font pairings, weights, sizing, and hierarchy
- Color & Theme – Emotional intent, color systems, and unexpected accents
- Motion – Orchestrated animations, easing, and interaction choreography
- Spatial Composition – Layout, spacing systems, and asymmetrical design
- Backgrounds & Details – Subtle textures, gradients, and visual rewards
Tech Implementations (choose one):
- React with Vite and Framer Motion
- Vue (Options API or Composition API)
- Svelte with custom animations
- HTML/CSS/SCSS fundamentals
- Design system integrations (Tailwind, shadcn/ui, Radix, Material)
Quick Navigation
"I need to create..." - "I want to focus on..."
Typography dimension
→ See ./sub-skills/typography.md
Color & theme system
→ See ./sub-skills/color-theme.md
Motion & animations
→ See ./sub-skills/motion.md
Spatial layout & composition
→ See ./sub-skills/spatial.md
Backgrounds & visual details
→ See ./sub-skills/backgrounds.md
Design thinking checklist
→ See ./sub-skills/design-thinking.md
8-Phase Workflow
- Design Thinking – Answer purpose, tone, constraints, differentiation
- Typography – Select typefaces, weights, sizes, hierarchy
- Color & Theme – Define emotional intent, color system, accents
- Motion – Plan animations, easing, interaction sequences
- Spatial Composition – Design layouts, spacing scales, asymmetry
- Backgrounds & Details – Add subtle textures, gradients, micro-details
- Implementation – Follow your tech-specific sub-skill
- Validation – Design review, accessibility, performance, mobile
Anti-Patterns (Reject These)
Typography
- ❌ Inter, Roboto, Open Sans, Lato, system fonts
- ❌ Mid-range weights only (400, 500, 600)
- ❌ Incremental size scaling (48px → 40px → 32px)
What ships with it
15 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.
- README.md 7.7 KB
- sub-skills/backgrounds.md 7.4 KB
- sub-skills/color-theme.md 5.7 KB
- sub-skills/css-scss.md 5.0 KB
- sub-skills/design-thinking.md 3.5 KB
- sub-skills/hugo.md 5.4 KB
- sub-skills/material-design.md 4.6 KB
- sub-skills/motion.md 5.9 KB
- sub-skills/radix-ui.md 4.3 KB
- sub-skills/react-vite.md 4.3 KB
- sub-skills/shadcn-ui.md 3.7 KB
- sub-skills/spatial.md 7.0 KB
- sub-skills/tailwind.md 3.3 KB
- sub-skills/typescript.md 5.5 KB
- sub-skills/typography.md 4.7 KB
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.
- 6d ago First seen · 139 lines · 18 tokens per session scan A 7cc93c859e05
frontend-design is a skill published in the GitHub repository matteocervelli/llms (25 stars, last pushed 3mo ago), licensed MIT. It adds 18 tokens to every session and 1,028 once invoked, about $0.0001 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 2026-09-03.
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