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/espennilsen/pi/design-systemnpx skills add espennilsen/pi --skill design-systemgit clone --depth 1 https://github.com/espennilsen/piWrote 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/espennilsen/pi/design-system)<a href="https://agentmods.dev/skills/espennilsen/pi/design-system"><img src="https://agentmods.dev/badge/skills/espennilsen/pi/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 | $0.00053 | $0.01695 |
| Opus 5 | $0.00026 | $0.00847 |
| Sonnet 5 | $0.00011 | $0.00339 |
| Haiku 4.5 | $0.00005 | $0.00169 |
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 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 — 197 lines — stays where its author put it; the contents beside it link to each section on GitHub.
Design System Management
Structured workflows for building and maintaining design systems across Espen's projects.
Design Token Architecture
Design tokens are the single source of truth — they flow from Penpot → JSON → Tailwind config → components.
Token Categories
1. Color Tokens
primitive/ — raw color values (gray-50 through gray-950, blue-500, etc.)
semantic/ — meaning-based aliases
├── background — page, card, surface, overlay
├── foreground — text-primary, text-secondary, text-muted, text-inverse
├── border — default, muted, focus, error
├── accent — primary, secondary
└── status — success, warning, error, info
interactive/ — state-based
├── hover — bg-hover, text-hover
├── active — bg-active
├── focus — ring-color, ring-offset
└── disabled — bg-disabled, text-disabled
2. Typography Tokens
font-family/ — sans, mono, serif (if used)
font-size/ — xs (12px), sm (14px), base (16px), lg (18px), xl (20px), 2xl-5xl
font-weight/ — normal (400), medium (500), semibold (600), bold (700)
line-height/ — tight (1.2), normal (1.5), relaxed (1.75)
letter-spacing/ — tight (-0.025em), normal (0), wide (0.025em)
3. Spacing Tokens
Aligned with Tailwind's 4px base:
0: 0px, 0.5: 2px, 1: 4px, 1.5: 6px, 2: 8px, 2.5: 10px, 3: 12px, 4: 16px,
5: 20px, 6: 24px, 8: 32px, 10: 40px, 12: 48px, 16: 64px, 20: 80px, 24: 96px
4. Layout Tokens
radius/ — none (0), sm (4px), md (8px), lg (12px), xl (16px), full (9999px)
shadow/ — none, sm, md, lg, xl, 2xl, inner
border-width/ — 0, 1px, 2px, 4px
z-index/ — dropdown (50), sticky (100), modal (200), popover (300), toast (400)
breakpoint/ — sm (640px), md (768px), lg (1024px), xl (1280px), 2xl (1536px)
5. Motion Tokens
duration/ — fast (100ms), normal (200ms), slow (300ms), slower (500ms)
easing/ — ease-in, ease-out, ease-in-out, cubic-bezier(0.4, 0, 0.2, 1)
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 · 197 lines · 53 tokens per session scan A 9f4829921da6
design-system is a skill published in the GitHub repository espennilsen/pi (117 stars, last pushed 12d ago), licensed MIT. It adds 53 tokens to every session and 1,695 once invoked, about $0.0003 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 2026-08-30.
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