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-design-reactgit 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-react)<a href="https://agentmods.dev/skills/matteocervelli/llms/frontend-design-react"><img src="https://agentmods.dev/badge/skills/matteocervelli/llms/frontend-design-react/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-react"><img src="https://agentmods.dev/badge/skills/matteocervelli/llms/frontend-design-react.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 | $0.00019 | $0.06786 |
| Opus 5 | $0.00010 | $0.03393 |
| Sonnet 5 | $0.00004 | $0.01357 |
| Haiku 4.5 | $0.00002 | $0.00679 |
Grade A, and why
frontend-design-react 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 — 849 lines — stays where its author put it; the contents beside it link to each section on GitHub.
Frontend Design React Skill
Create distinctive, production-grade React frontends with TypeScript and exceptional design quality. This skill integrates the 5-dimension design framework with React-specific patterns, Framer Motion animations, and accessibility best practices.
Base Aesthetics Framework
Overview
This is the core 5-dimension framework for creating intentional, non-generic design that avoids the homogenized aesthetic of default AI outputs. Each dimension works together to create designs with personality and deliberation.
The Five Dimensions
1. Typography Dimension
Purpose: Typography is the primary carrier of voice and personality in digital design.
Core Principles:
- Typeface selection creates immediate emotional context
- Font pairings establish visual hierarchy and rhythm
- Weight and size extremes create contrast and emphasis
- Avoid: Inter, Roboto, Open Sans, Lato, system fonts (these are default AI outputs)
- Prefer: JetBrains Mono, Fira Code, Space Grotesk, Playfair Display, Crimson Pro, IBM Plex, Bricolage Grotesque
Implementation:
- Use high-contrast pairings: Display + Mono, Serif + Geometric Sans
- Employ weight extremes: 100/200 vs 800/900 (not mid-range weights)
- Apply size jumps of 3x or more, not incremental 1.5x steps
- Create visual hierarchy through deliberate typographic choices
Example Pattern:
- Display: Playfair Display (300, 400, 700)
- Body: IBM Plex Sans (400, 600)
- Mono: JetBrains Mono (400, 500)
2. Color & Theme Dimension
Purpose: Color sets mood and creates visual coherence while avoiding cliché palettes.
Core Principles:
- Move beyond default color systems (Material Design, Tailwind defaults)
- Use unexpected but harmonious color relationships
- Consider context: what emotional response do you want?
- Saturation and tone matter as much as hue
Anti-Patterns to Avoid:
- Primaries: Blue, Red, Green (default AI trinity)
- Neutrals: Pure grays (#999999, #CCCCCC) without personality
- Monochrome gradients that feel soulless
- Color palettes that match "flat design" clichés
What ships with it
2 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.
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 · 849 lines · 0 tokens per session scan A 33d4b5771c72
frontend-design-react is a skill published in the GitHub repository matteocervelli/llms (25 stars, last pushed 3mo ago), licensed MIT. It adds 19 tokens to every session and 6,786 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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