UI Skills is a collection of skills and lessons for design engineers working on user interfaces. Developers and coding agents use it through a command-line interface or MCP tools to browse and retrieve design-engineering guidance. The catalogue add-ons contain selected UI skills and an instruction for using them.
Borrowing it
Nothing to install: this file belongs to ibelick/ui-skills. Take a copy, put it at the same path in your own repository, and replace the rules that are about this project with yours.
curl -O https://raw.githubusercontent.com/ibelick/ui-skills/main/AGENTS.mdgit clone --depth 1 https://github.com/ibelick/ui-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/instructions/ibelick/ui-skills/agents-md)<a href="https://agentmods.dev/instructions/ibelick/ui-skills/agents-md"><img src="https://agentmods.dev/badge/instructions/ibelick/ui-skills/agents-md/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/instructions/ibelick/ui-skills/agents-md"><img src="https://agentmods.dev/badge/instructions/ibelick/ui-skills/agents-md.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 | $0.00403 | $0.00403 |
| Opus 5.5 | $0.00161 | $0.00161 |
| Sonnet 5.5 | $0.00081 | $0.00081 |
| Haiku 4.5 | $0.00040 | $0.00040 |
Grade A, and why
ui-skills AGENTS.md 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 1mo 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
AGENTS.md
Site Rules
- Use the semantic color tokens in
src/styles/global.cssfor text, fills, surfaces, and lines. Usesurface-defaultfor elevated or focused components such as cards, code blocks, dialogs, inputs, and navigation controls when it improves separation and contrast. - Prefer
text-basefor body copy - Use
text-lgfor section copy andtext-3xlfor major headings. - Keep headings
font-mediumwithtracking-tightwhere appropriate. - Use
JetBrains Monofor code, commands, and monospace UI. - Keep labels and link text in sentence case.
- Prefer light borders, minimal decoration, and generous spacing.
Skills
- Add skills in
src/data/registry.tsonly. - Fill
slug,user,repo,rawUrl,githubUrl,name,description, andtopics. - If a new topic is needed, update
TopicSlug,topicsBySlug,relatedTopicSlugs, andprimaryDesignTopicSlugsonly when it is a core topic. - Do not add local
skills/*files unless the repo actually hosts the skill markdown.
Weekly publisher skills audit
Check whether curated publishers (/skills/{user}) have pushed new skills to repos we already track.
- Run
npm run check:publisher-skills(setGITHUB_TOKENorGH_TOKENfor GitHub API rate limits). - Review the markdown table, or use
--jsonfor machine-readable output. - Decide which new skills fit ui-skills, then add them to
registrySourceinsrc/data/registry.ts. - Run
npm run digestsandnpm run check:skillsbefore opening a PR.
The command scans every publisher and repo already listed in the registry. Curate what to add — do not bulk-import every reported skill.
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.
- 1mo ago Changed · +14 tokens per session 295b84a486bf
- 1mo ago First seen · 30 lines · 389 tokens per session scan A 514caa882059
ui-skills AGENTS.md is an instructions file published in the GitHub repository ibelick/ui-skills (10,113 stars, last pushed 4d ago), licensed MIT. It adds 403 tokens to every session, about $0.0016 per session on Opus 5.5. 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.
Other instructions, from other repositories
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Working notes and architecture documentation for the new esbuild-based build system in build/next. Use when making changes to the new build pipeline (transpile/bundle commands, NLS plugin, source-map handling, resource copying, or self-hosting watch tasks).
next.js AGENTS.md
AGENTS.md instructions for vercel/next.js, covering next.js development guide, codebase structure, monorepo overview, core package: packages/next and other important packages.
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Instructions for microsoft/vscode, covering vs code oss third-party-notices pipeline, architecture, pipeline flow in ci, cache eligibility and rollout and applying the notice (cutover).
langchain AGENTS.md
AGENTS.md instructions for langchain-ai/langchain, covering global development guidelines for the langchain monorepo, corridor security analysis, project architecture and context, monorepo structure and development tools & commands.
deepseek-harness AGENTS.md
AGENTS.md instructions for deepseek-ai/deepseek-harness, covering agents.md, pre-stable apis and released session data, repository layout, commands and host sandbox failures.
vscode copilot-instructions.md
Copilot instructions for microsoft/vscode, covering vs code copilot instructions, project overview, root folders, core architecture (src/ folder) and built-in extensions (extensions/ folder).