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.
git clone --depth 1 https://github.com/ca-who-codes/ultimate.UIUX.design.skillsWrote 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/commands/ca-who-codes/ultimate.uiux.design.skills/design-system)<a href="https://agentmods.dev/commands/ca-who-codes/ultimate.uiux.design.skills/design-system"><img src="https://agentmods.dev/badge/commands/ca-who-codes/ultimate.uiux.design.skills/design-system/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/commands/ca-who-codes/ultimate.uiux.design.skills/design-system"><img src="https://agentmods.dev/badge/commands/ca-who-codes/ultimate.uiux.design.skills/design-system.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 | $0.00044 | $0.00378 |
| Opus 5 | $0.00022 | $0.00189 |
| Sonnet 5 | $0.00009 | $0.00076 |
| Haiku 4.5 | $0.00004 | $0.00038 |
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 9d 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.
What it actually says
Generate a cohesive design system for: $ARGUMENTS
- Read
knowledge/02-foundations/design-tokens.md,color.md,typography.md, andlayout-spacing.md. - Derive the system from the brief (industry, mood, brand color if given). Make deliberate choices and justify them briefly.
- Produce:
- Palette — primary, neutral ramp (50–950), and semantic (success/warning/error/info), in OKLCH or hex, for both light and dark modes. Verify contrast (4.5:1 text, 3:1 UI).
- Typography — font choice/stack, a modular type scale (rem + Tailwind classes), line-heights, weights.
- Spacing — 8pt scale; radius scale; shadow/elevation scale (layered, not harsh).
- Motion — standard durations and easing curves.
- Token output — a copy-paste
:root+.darkCSS custom-property block and a Tailwind v4@themeblock, plus shadcn-compatible variable names.
- Show a tiny applied example (a button + card) using the tokens so the system is visibly coherent.
- Note how to extend it (component tokens, theming) and verify against
knowledge/05-quality/review-checklist.md.
Be opinionated and specific — real values, not placeholders.
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.
- 9d ago First seen · 20 lines · 44 tokens per session scan A c5d48db822ba
design-system is a command published in the GitHub repository ca-who-codes/ultimate.UIUX.design.skills (4 stars, last pushed 1mo ago), licensed MIT. It adds 44 tokens to every session and 378 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.
Other commands, from other repositories
color-specialist
Use when colour is failing. Contrast below AA, a palette with no system behind it, dark mode that is only inverted light mode, or semantic colours that carry no meaning.
motion-designer
Use when animation feels wrong. Transitions too slow or too bouncy, motion with no purpose, blanket transitions on every property, no reduced-motion support, or animation that drops frames.
spacing-layout-specialist
Use when spacing looks arbitrary. Padding and margins off any scale, inconsistent gaps between the same components, no grid underneath, or a layout that needs a denser mode.
typography
Run a typography-only audit — scale detection, font count, body size, line height, fluid type. Scoped variant of /ui-ux-suite:audit.
dark-mode-specialist
Use when dark mode looks wrong. Pure black surfaces, elevation that disappears, brand colours that vibrate against dark, a white flash on load, or a mode toggle that does not persist.
responsive-design-specialist
Use when a layout breaks between sizes. Arbitrary breakpoints, type that does not scale, images that blow out the grid, or a desktop design retrofitted onto mobile.