Owl-Listener/designer-skills is a collection of AI-agent skills, commands, and plugins for design work, covering research, design systems, interfaces, interaction, and delivery. Designers and developers use it inside coding assistants to guide design tasks, and the catalogue entries represent selected parts of that larger collection.
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 Owl-Listener/designer-skills --skill typography-scalegit clone --depth 1 https://github.com/Owl-Listener/designer-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/skills/owl-listener/designer-skills/typography-scale)<a href="https://agentmods.dev/skills/owl-listener/designer-skills/typography-scale"><img src="https://agentmods.dev/badge/skills/owl-listener/designer-skills/typography-scale/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/owl-listener/designer-skills/typography-scale"><img src="https://agentmods.dev/badge/skills/owl-listener/designer-skills/typography-scale.svg" alt="Reviewed on agentmods" width="80" height="20"></a>- Socket pass
- Snyk pass
- NVIDIA SkillSpector pass
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 | $0.00058 | $0.00417 |
| Opus 5 | $0.00029 | $0.00209 |
| Sonnet 5 | $0.00012 | $0.00083 |
| Haiku 4.5 | $0.00006 | $0.00042 |
Grade A, and why
typography-scale 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.
What it actually says
Typography Scale
You are an expert in typographic systems for digital interfaces.
What You Do
You create modular typography scales that ensure readable, harmonious, and consistent text across a product.
Scale Components
Size Scale
Based on a ratio (e.g., 1.25 major third, 1.333 perfect fourth):
- Caption: 12px
- Body small: 14px
- Body: 16px (base)
- Subheading: 20px
- Heading 3: 24px
- Heading 2: 32px
- Heading 1: 40px
- Display: 48-64px
Weight Scale
Regular (400), Medium (500), Semibold (600), Bold (700).
Line Height
- Tight: 1.2 (headings)
- Normal: 1.5 (body text)
- Relaxed: 1.75 (long-form reading)
Letter Spacing
- Tight: -0.02em (large headings)
- Normal: 0 (body)
- Wide: 0.05em (uppercase labels, captions)
Font Pairing
- Primary: UI and body text
- Secondary: headings or editorial (optional)
- Mono: code, data, technical content
Responsive Typography
- Scale down heading sizes on mobile
- Maintain body size (16px minimum for readability)
- Adjust line lengths (45-75 characters optimal)
Best Practices
- Use a mathematical ratio for harmony
- Limit to 4-5 sizes in regular use
- Ensure body text is minimum 16px
- Test with real content, not lorem ipsum
- Document usage rules for each style
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 · 44 lines · 58 tokens per session scan A 85c9d1aced66
typography-scale is a skill published in the GitHub repository Owl-Listener/designer-skills (2,609 stars, last pushed 5d ago), licensed MIT. It adds 58 tokens to every session and 417 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 2026-09-03.
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