Awesome Design Skills is a curated registry of design-system instruction files for AI-powered coding and design agents. It helps agents follow particular visual styles, component rules, accessibility constraints, and quality checks when building interfaces. The catalogue entries are the listed design skills that users can pull into their projects.
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 bergside/awesome-design-skills --skill segagit clone --depth 1 https://github.com/bergside/awesome-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/skills/bergside/awesome-design-skills/sega)<a href="https://agentmods.dev/skills/bergside/awesome-design-skills/sega"><img src="https://agentmods.dev/badge/skills/bergside/awesome-design-skills/sega/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/bergside/awesome-design-skills/sega"><img src="https://agentmods.dev/badge/skills/bergside/awesome-design-skills/sega.svg" alt="Reviewed on agentmods" width="80" height="20"></a>- Socket pass
- Snyk 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 | $0.00039 | $0.00779 |
| Opus 5 | $0.00019 | $0.00390 |
| Sonnet 5 | $0.00008 | $0.00156 |
| Haiku 4.5 | $0.00004 | $0.00078 |
Grade A, and why
sega 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 11d 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.
This is a copy
78% identical to bold — 22 lines differ, which has more behind it and is treated as the original. This page carries a canonical link to it rather than competing with it.
How it starts
The opening of the file, as written. The whole thing — 82 lines — stays where its author put it; the contents beside it link to each section on GitHub.
Sega Design System Skill (Universal)
Mission
You are an expert design-system guideline author for Sega. Create practical, implementation-ready guidance that can be directly used by engineers and designers.
Brand
A playful, arcade-inspired interface for games — built on the VT323 pixel typeface, hard-edged 0px corners, chunky pill buttons that physically press into solid offset blocks, and cards wrapped in rainbow-ringed brand shadows that read like cabinet trim.
Style Foundations
- Visual style: modern, playful
- Typography scale: 13/15/17/21/27/35 | Fonts: primary=VT323, display=VT323, mono=JetBrains Mono | weights=100, 200, 300, 400, 500, 600, 700, 800, 900
- Color palette: primary, secondary, neutral, success, warning, danger | Tokens: primary=#4502FF, secondary=#FFDA14, success=#16A34A, warning=#D97706, danger=#DC2626, surface=#FFFFFF, text=#111827
- Spacing scale: 4/8/12/16/24/32
Accessibility
WCAG 2.2 AA, keyboard-first interactions, visible focus states
Writing Tone
concise, confident, helpful
Rules: Do
- prefer semantic tokens over raw values
- preserve visual hierarchy
- keep interaction states explicit
Rules: Don't
- avoid low contrast text
- avoid inconsistent spacing rhythm
- avoid ambiguous labels
Expected Behavior
- Follow the foundations first, then component consistency.
- When uncertain, prioritize accessibility and clarity over novelty.
- Provide concrete defaults and explain trade-offs when alternatives are possible.
- Keep guidance opinionated, concise, and implementation-focused.
Guideline Authoring Workflow
- Restate the design intent in one sentence before proposing rules.
- Define tokens and foundational constraints before component-level guidance.
- Specify component anatomy, states, variants, and interaction behavior.
- Include accessibility acceptance criteria and content-writing expectations.
- Add anti-patterns and migration notes for existing inconsistent UI.
- End with a QA checklist that can be executed in code review.
What ships with it
1 file beside SKILL.md in the same directory: the scripts, references and assets a skill reads on demand. Not counted in the per-session cost; read them before you install if any of them is executable.
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.
- 11d ago First seen · 82 lines · 39 tokens per session scan A 898dd663cfc5
sega is a skill published in the GitHub repository bergside/awesome-design-skills (2,730 stars, last pushed 2mo ago), licensed MIT. It adds 39 tokens to every session and 779 once invoked, about $0.0002 per session on Opus 5. A static security scan graded it A with 0 findings. It is 78% identical to bold, differing in 22 lines, and is treated as a copy.
Other skills, from other repositories
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ai-accessibility
A Chinese-language assistant for diagnosing accessibility and ease-of-use problems in a page or service. Accessibility means making digital products usable by people with different abilities and needs.
ai-baoyu-image-cards
A visual content assistant for creating image cards, which are graphics that present information in a readable format. It can assess a card concept, suggest prompts or storyboards, and check publishing specifications.
ai-design-taste-frontend
A frontend visual-quality reviewer that examines whether an interface looks polished and coherent. It produces visual or creative diagnoses, prompt or storyboard ideas, and publishing checks.
ai-extract-design-system
A visual-quality review assistant for examining a product or software interface and its design patterns.
ai-frontend-design
A visual-quality review assistant for checking whether a design is ready to publish.