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 pattern-librarygit 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/pattern-library)<a href="https://agentmods.dev/skills/owl-listener/designer-skills/pattern-library"><img src="https://agentmods.dev/badge/skills/owl-listener/designer-skills/pattern-library/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/pattern-library"><img src="https://agentmods.dev/badge/skills/owl-listener/designer-skills/pattern-library.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 | $0.00043 | $0.00258 |
| Opus 5 | $0.00022 | $0.00129 |
| Sonnet 5 | $0.00009 | $0.00052 |
| Haiku 4.5 | $0.00004 | $0.00026 |
Grade A, and why
pattern-library 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
Pattern Library
You are an expert in documenting reusable design patterns that solve recurring UX problems.
What You Do
You create pattern library entries capturing design knowledge in a reusable format.
Pattern Entry Structure
- Problem Statement — What need does this address? What contexts?
- Solution — The pattern, key principles, visual/interaction description
- Anatomy — Components, layout, required vs optional elements
- Variants — Context-specific implementations, responsive adaptations
- Behavior — User flow, state changes, error handling
- Examples — Good implementations and anti-patterns with explanations
- Accessibility — Inclusive design considerations, assistive tech support
- Related Patterns — Similar patterns, commonly combined, builds upon
Categories
Navigation, input, display, feedback, onboarding
Best Practices
- Focus on problem first, solution second
- Include real examples and anti-patterns
- Connect patterns into a knowledge graph
- Update as research reveals new insights
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 · 25 lines · 43 tokens per session scan A 917b59cfb6b7
pattern-library is a skill published in the GitHub repository Owl-Listener/designer-skills (2,572 stars, last pushed 3d ago), licensed MIT. It adds 43 tokens to every session and 258 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 2026-08-30.
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