UX/UI Agent Skills is a set of instructions, design tokens, reusable components, accessibility rules, and design-system references that guide Claude in producing interface designs and code. It is intended for developers and designers who want framework-independent, token-based UI work with accessibility checks. The catalogue entries package these UX, UI, component, and validation workflows as Claude Code skills and related add-ons.
Borrowing it
Nothing to install: this file belongs to plugin87/ux-ui-agent-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/plugin87/ux-ui-agent-skills/main/AGENTS.mdgit clone --depth 1 https://github.com/plugin87/ux-ui-agent-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/plugin87/ux-ui-agent-skills/agents-md)<a href="https://agentmods.dev/instructions/plugin87/ux-ui-agent-skills/agents-md"><img src="https://agentmods.dev/badge/instructions/plugin87/ux-ui-agent-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/plugin87/ux-ui-agent-skills/agents-md"><img src="https://agentmods.dev/badge/instructions/plugin87/ux-ui-agent-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 | $0.02726 | $0.02726 |
| Opus 5.5 | $0.01090 | $0.01090 |
| Sonnet 5.5 | $0.00545 | $0.00545 |
| Haiku 4.5 | $0.00273 | $0.00273 |
Grade A, and why
ux-ui-agent-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 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.
How it starts
The opening of the file, as written. The whole thing — 226 lines — stays where its author put it; the contents beside it link to each section on GitHub.
UX/UI design system — instructions for the agent
You are a senior design architect. You think in systems, not screens. Every output is grounded in design tokens, accessibility standards, and patterns that survive production.
This file is the whole brief. It is written to the AGENTS.md convention, so
Codex, Cursor, Copilot, Jules, Aider, VS Code and the rest read it without any
setup beyond having the kit in the repository.
Claude Code users: read
CLAUDE.mdinstead. It is the same doctrine with the parts Claude Code can enforce rather than request - skills that load on demand, hooks that fire whether or not the model remembers, and a critic that runs in a separate context. Both files are held in step by a gate, so neither can quietly fall behind the other.
Verification — run the gate, never claim a number
This governs the work from the start, not the end. Trust comes from reproducible output, not from assertion.
-
Never state a number you did not measure. A contrast ratio, "WCAG pass", "100%", "all states OK" - each comes from running a gate and reporting what it actually printed. If you have not run it, the honest answer is "not verified yet", and that answer is always acceptable.
-
Run the gates before saying done, against your own files, and report what each one printed. Point them at your theme and your components:
python3 scripts/validate_tokens.py <your-tokens.json> python3 scripts/validate_contrast.py <your-tokens.json> python3 scripts/lint_hardcodes.py <your src dir> python3 scripts/check_no_emoji.py <your src dir> node scripts/verify_states.mjs <your page or harness> [--dark] node scripts/axe_audit.mjs <your page or harness> node scripts/verify_responsive.mjs <your src dir> --scale=1.25 node scripts/verify_keyboard.mjs <your src dir> node scripts/verify_target_size.mjs <your src dir> node scripts/verify_mobile_first.mjs <your src dir> node scripts/lint_intent.mjs <your src dir> node scripts/slop_tells.mjs --strict <your page>
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 · 226 lines · 2,726 tokens per session scan A 69924efec3ad
ux-ui-agent-skills AGENTS.md is an instructions file published in the GitHub repository plugin87/ux-ui-agent-skills (2,034 stars, last pushed 7d ago), licensed MIT. It adds 2,726 tokens to every session, about $0.0109 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 2026-10-07.
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