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 zarpay/rails-template --skill design-systemgit clone --depth 1 https://github.com/zarpay/rails-templateWrote 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/zarpay/rails-template/design-system)<a href="https://agentmods.dev/skills/zarpay/rails-template/design-system"><img src="https://agentmods.dev/badge/skills/zarpay/rails-template/design-system.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 | $0.00044 | $0.00752 |
| Opus 5 | $0.00022 | $0.00376 |
| Sonnet 5 | $0.00009 | $0.00150 |
| Haiku 4.5 | $0.00004 | $0.00075 |
Grade A, and why
design-system 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 7d 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 — 64 lines — stays where its author put it; the contents beside it link to each section on GitHub.
Machina Design System — Quick Reference
The shared visual language for Machina apps. Each app picks its own brand gem and theme name but inherits the surface, shape, typography, and spacing rules below.
Hierarchy of Styling (strict order)
- DaisyUI semantic classes —
btn-primary,bg-base-200,card,badge-success - Tailwind utilities —
flex,gap-4,text-sm,p-6 - Design system classes from
main.css—.f-display,.f-mono,.nav-item - Add to
main.css— new patterns go here, then use the class - Never — inline styles, per-page style blocks,
!importantin HTML, hardcoded hex
Surfaces — Core Rules
Dark Mode (Pantheon Blue-Gray)
Depth = surface lightness. NO shadows.
base-100(#0F131A) — Page background (deepest void)base-200(#171B21) — Cards, containersbase-300(#1E2228) — Elevated elements, bordersneutral(#2C333B) — Highest elevation (popovers, nav)
Light Mode (Warm Marble)
Depth = shadow. White cards on warm marble.
base-100(#F5F0E8) — Page background (warm marble, NOT #FFF)base-200(#FFFFFF) — Cards, elevated surfaces (WHITE)base-300(#EFEBE0) — Warm dividers, bordersneutral(#E5DFD3) — Muted background areas
KEY RULE: Cards are bg-base-200 (full opacity). In light mode this is
white on warm marble; in dark mode it's a slightly lighter surface. Never use
bg-base-200/40 — the opacity destroys the depth hierarchy.
Shapes (Wall / Arch / Tessera)
- Wall (8px /
rounded-box) — Containers, cards - Arch (pill /
rounded-full) — Interactive: buttons, inputs, badges - Tessera (4px /
rounded) — Atomic elements
Typography
- Display: Cormorant Garamond (
.f-display) — headings, headlines - Body: DM Sans — paragraphs, UI text
- Mono: JetBrains Mono (
.f-mono) — code, data, timestamps - Stats: JetBrains Mono 700, 28px min, lining tabular figures
App brand
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.
- 7d ago First seen · 64 lines · 44 tokens per session scan A b0a9cdac6a88
design-system is a skill published in the GitHub repository zarpay/rails-template (9 stars, last pushed 26d ago), licensed MIT. It adds 44 tokens to every session and 752 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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