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.
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 ibelick/ui-skills --skill ui-skills-rootgit 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/skills/ibelick/ui-skills/ui-skills-root)<a href="https://agentmods.dev/skills/ibelick/ui-skills/ui-skills-root"><img src="https://agentmods.dev/badge/skills/ibelick/ui-skills/ui-skills-root/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/ibelick/ui-skills/ui-skills-root"><img src="https://agentmods.dev/badge/skills/ibelick/ui-skills/ui-skills-root.svg" alt="Reviewed on agentmods" width="80" height="20"></a>- Socket warn
- Snyk pass
- NVIDIA SkillSpector warn
SkillSpector: 5 findings, up to medium
These are SkillSpector’s own severities. On a checked sample its high-severity flags on skills were ~96% false positives — a documented command, a public API, a “never do X” rule — so we show them as a caution to read, not a verdict. Why →
- medium MCP Rug Pull · line 14 npx commands without a version suffix (e.g. @1.0.0) create a rug-pull risk if the upstream server is compromised and publishes a malicious update.Fix: Pin the version: npx @scope/[email protected]
- medium MCP Rug Pull · line 35 npx commands without a version suffix (e.g. @1.0.0) create a rug-pull risk if the upstream server is compromised and publishes a malicious update.Fix: Pin the version: npx @scope/[email protected]
- medium MCP Rug Pull · line 36 npx commands without a version suffix (e.g. @1.0.0) create a rug-pull risk if the upstream server is compromised and publishes a malicious update.Fix: Pin the version: npx @scope/[email protected]
- medium MCP Rug Pull · line 37 npx commands without a version suffix (e.g. @1.0.0) create a rug-pull risk if the upstream server is compromised and publishes a malicious update.Fix: Pin the version: npx @scope/[email protected]
- medium MCP Rug Pull · line 38 npx commands without a version suffix (e.g. @1.0.0) create a rug-pull risk if the upstream server is compromised and publishes a malicious update.Fix: Pin the version: npx @scope/[email protected]
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 | $0.00025 | $0.00347 |
| Opus 5 | $0.00013 | $0.00173 |
| Sonnet 5 | $0.00005 | $0.00069 |
| Haiku 4.5 | $0.00003 | $0.00035 |
Grade A, and why
ui-skills-root 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.
What it actually says
UI Skills Root
You are the routing layer for UI Skills.
This skill is shown by npx ui-skills start and is also available in the registry.
Use it when an agent in Codex, Cursor, or Claude Code has a clear UI goal.
If the goal is unclear, ask one short question.
If the goal is clear, choose the right category, load the smallest useful skill context, then implement.
Protocol
- decide if the task is UI-related
- if not, return
no skill needed - identify the likely category
- inspect that category with the CLI
- select the smallest useful skill set
- load only selected skill(s)
- implement using that context
CLI
npx ui-skills start
npx ui-skills categories
npx ui-skills list --category <category>
npx ui-skills get <slug>
Selection Rules
Prefer 1 skill.
Use 2 only when the task needs two clear angles.
Use 3 only for broad review, redesign, or multi-surface work.
Never use more than 3.
Route by topic, then stack, then specificity.
Prefer specific skills over broad skills.
Prefer framework-specific skills when the stack is obvious.
For quick cleanup, prefer the most specific craft, visual, or layout skill available.
If unsure, inspect categories and pick the safest narrow 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.
- 11d ago First seen · 60 lines · 25 tokens per session scan A d4e1033f9104
ui-skills-root is a skill published in the GitHub repository ibelick/ui-skills (8,270 stars, last pushed 4d ago), licensed MIT. It adds 25 tokens to every session and 347 once invoked, about $0.0001 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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visual-edit
Open a running local app in Design overview mode as URL-backed iframe screens for visual editing, flow review, duplication, and route-state exploration. Use when the user asks to inspect, compare, or edit a real local app visually in Design.
muapi-ui-design
Generate high-fidelity UI/UX mockups for mobile and web apps using Atomic Design principles — creates wireframes and design systems via muapi.ai.
display-glasses-with-jetpack-compose-glimmer
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accessibility
Audit and improve web accessibility following WCAG 2.2 guidelines. Use when asked to "improve accessibility", "a11y audit", "WCAG compliance", "screen reader support", "keyboard navigation", or "make accessible".