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 agentmods add skills/plurigrid/asi/frontend-designnpx skills add plurigrid/asi --skill frontend-designgit clone --depth 1 https://github.com/plurigrid/asiWrote 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/plurigrid/asi/frontend-design)<a href="https://agentmods.dev/skills/plurigrid/asi/frontend-design"><img src="https://agentmods.dev/badge/skills/plurigrid/asi/frontend-design.svg" alt="Measured on agentmods" 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 | $0.00017 | $0.01250 |
| Opus 5 | $0.00009 | $0.00625 |
| Sonnet 5 | $0.00003 | $0.00250 |
| Haiku 4.5 | $0.00002 | $0.00125 |
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 5d 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 — 196 lines — stays where its author put it; the contents beside it link to each section on GitHub.
frontend-design - AI-Guided UI/UX Design Skill
Overview
Frontend design skill for all AI coding assistants. Provides consistent design principles, component patterns, and accessibility guidelines across Claude, Codex, Cursor, and Copilot.
Installation
# Via ai-agent-skills (Codex)
npx ai-agent-skills install frontend-design --agent codex
# Via ruler (all agents)
ruler sync --skill frontend-design
Design Principles
1. Color via Gay.jl SPI
All colors are deterministic via SplitMix64:
// seed 0x42D (1069) for consistent palette
const seed = 0x42D;
const colors = gaySPI.palette(seed, 5);
// Example palette:
// #E67F86 - Primary (warm coral)
// #D06546 - Secondary (rust orange)
// #1316BB - Accent (deep blue)
// #3CB371 - Success (medium sea green)
// #FFD700 - Warning (gold)
2. Component Patterns
// Balanced Ternary State Component
interface TAPState {
mode: 'BACKFILL' | 'VERIFY' | 'LIVE';
color: string;
}
function StateIndicator({ state }: { state: TAPState }) {
const colorMap = {
BACKFILL: '#0000FF', // Blue (-1)
VERIFY: '#00FF00', // Green (0)
LIVE: '#FF0000' // Red (+1)
};
return (
<div
className="state-indicator"
style={{ backgroundColor: colorMap[state.mode] }}
/>
);
}
3. Accessibility (WCAG 2.1 AA)
- Contrast ratio ≥ 4.5:1 for normal text
- Contrast ratio ≥ 3:1 for large text
- Focus indicators visible
- Keyboard navigation complete
- Screen reader compatible
Layout Patterns
Golden Ratio Grid
.container {
display: grid;
grid-template-columns: 1fr 1.618fr; /* φ = 1.618... */
gap: var(--spacing-golden);
}
:root {
--spacing-golden: 1.618rem;
--spacing-inverse: 0.618rem;
}
Fibonacci Spacing
:root {
--space-1: 0.25rem; /* 1 */
--space-2: 0.5rem; /* 2 */
--space-3: 0.75rem; /* 3 */
--space-5: 1.25rem; /* 5 */
--space-8: 2rem; /* 8 */
--space-13: 3.25rem; /* 13 */
--space-21: 5.25rem; /* 21 */
}
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.
- 5d ago First seen · 196 lines · 17 tokens per session scan A 6ea8b2976bbb
frontend-design is a skill published in the GitHub repository plurigrid/asi (62 stars, last pushed 1mo ago), licensed MIT. It adds 17 tokens to every session and 1,250 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 2026-09-01.
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