Borrowing it
Nothing to install: this file belongs to cuellarfr/design-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/cuellarfr/design-skills/main/CLAUDE.mdgit clone --depth 1 https://github.com/cuellarfr/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/instructions/cuellarfr/design-skills/claude-md)<a href="https://agentmods.dev/instructions/cuellarfr/design-skills/claude-md"><img src="https://agentmods.dev/badge/instructions/cuellarfr/design-skills/claude-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/cuellarfr/design-skills/claude-md"><img src="https://agentmods.dev/badge/instructions/cuellarfr/design-skills/claude-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 | $0.00783 | $0.00783 |
| Opus 5 | $0.00392 | $0.00392 |
| Sonnet 5 | $0.00157 | $0.00157 |
| Haiku 4.5 | $0.00078 | $0.00078 |
Grade A, and why
design-skills CLAUDE.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 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.
How it starts
The opening of the file, as written. The whole thing — 59 lines — stays where its author put it; the contents beside it link to each section on GitHub.
CLAUDE.md
This file provides guidance to Claude Code (claude.ai/code) when working with code in this repository.
What This Repo Is
A collection of 10 UX/design skills for AI coding agents (Claude Code, Cursor, Codex, and others). Each skill is a set of markdown files that give AI tools deep knowledge of established design frameworks, heuristics, and methodologies. There is no build system, no tests, and no application code — this is a pure content repository.
The repo ships through two distribution channels at once, from one copy of the content:
npx skills add cuellarfr/design-skills— the Vercel skills CLI, which walks the repo forSKILL.mdfiles. Works with Claude Code, Cursor, Codex, and 40+ other agents.- Claude Code plugin —
/plugin marketplace add cuellarfr/design-skills, then/plugin install design-skills@design-skills.
Skill Architecture
Every skill lives under skills/ and follows the same structure:
skills/skill-name/
├── SKILL.md # Main file (200-350 lines), standalone
├── references/ # Deep reference material, loaded on demand
├── templates/ # Fillable deliverable templates
└── examples/ # End-to-end walkthroughs and scenarios
SKILL.md files use YAML frontmatter with name and description fields. The description is what agents use to decide when to load the skill.
name must be kebab-case and match the directory name. The skills CLI slugifies the frontmatter name to decide the installed directory, so a mismatch installs the skill under a different folder than the one it lives in here.
Plugin Packaging
.claude-plugin/ holds both manifests, and nothing else — per Claude Code's rules, skills/ must stay at the repo root, never inside .claude-plugin/.
.claude-plugin/plugin.json— plugin manifest.name: design-skillsis the namespace, so skills resolve as/design-skills:accessibility-audit..claude-plugin/marketplace.json— makes the repo its own single-plugin marketplace via"source": "./", so users can install without waiting on the community catalog.
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 · 59 lines · 783 tokens per session scan A d4590190d331
design-skills CLAUDE.md is an instructions file published in the GitHub repository cuellarfr/design-skills (54 stars, last pushed 17d ago), licensed MIT. It adds 783 tokens to every session, about $0.0039 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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