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 a2ngerer/claude_onboarding_agent --skill design-setupgit clone --depth 1 https://github.com/a2ngerer/claude_onboarding_agentWrote 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/a2ngerer/claude_onboarding_agent/design-setup)<a href="https://agentmods.dev/skills/a2ngerer/claude_onboarding_agent/design-setup"><img src="https://agentmods.dev/badge/skills/a2ngerer/claude_onboarding_agent/design-setup/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/a2ngerer/claude_onboarding_agent/design-setup"><img src="https://agentmods.dev/badge/skills/a2ngerer/claude_onboarding_agent/design-setup.svg" alt="Reviewed on agentmods" width="80" height="20"></a>- NVIDIA SkillSpector warn
SkillSpector: 1 finding, 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 Agent Snooping · line 149 Skill enumerates or reads other installed skills. Access to other skills' SKILL.md files or the skills directory reveals prompt instructions, capabilities, and secrets that should be invisible to peer skills.Fix: Remove all code or instructions that list or read other skills' files or directories. Skills should operate independently; cross-skill access is a privilege escalation.
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 | $0.00055 | $0.02278 |
| Opus 5 | $0.00028 | $0.01139 |
| Sonnet 5 | $0.00011 | $0.00456 |
| Haiku 4.5 | $0.00006 | $0.00228 |
Grade A, and why
design-setup 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 — 183 lines — stays where its author put it; the contents beside it link to each section on GitHub.
UI/UX Design Setup
This skill configures the design-tool layer only: which design tool the user works in, and whether Claude should read Figma frames directly via MCP for UI handoff. It intentionally does NOT configure a frontend stack, a testing setup, or accessibility rules — those live in web-development-setup and would duplicate rules if emitted here.
Run web-development-setup first (or alongside) when you also need framework-aware tool permissions, component / API conventions, or WCAG enforcement. web-development-setup offers to delegate to this skill automatically after it asks for the frontend framework.
Handoff context: Read skills/_shared/consume-handoff.md and run it with the handoff block (if any). The helper guarantees the following locals: detected_language, existing_claude_md, inferred_use_case, repo_signals, graphify_candidate. Use detected_language for all user-facing prose; generated file content stays in English.
Existing CLAUDE.md: If existing_claude_md: true, DO NOT overwrite it. Append a new delimited section at the end of the file:
<!-- onboarding-agent:start setup=design skill=design-setup section=claude-md -->
## Claude Onboarding Agent — Design Setup
...generated content...
<!-- onboarding-agent:end -->
If the delimited block already exists from a previous run, replace only the content between the markers; leave the rest untouched. Wrap generated .gitignore entries in # onboarding-agent: design — start / — end markers so /upgrade-setup can refresh them non-destructively.
Supporting Files
Read these on-demand at the step that invokes them. Do not read eagerly.
skills/_shared/consume-handoff.md— orchestrator handoff parse + inline fallback (preamble, before Step 1)skills/_shared/offer-superpowers.md— canonical Superpowers opt-in (Step 1)
Delegated Mode
This skill may be invoked as a sub-step of web-development-setup (the "UI/design tooling" branch of web-dev Step 3b). When that happens, the parent skill sets delegated_from: web-development-setup in the handoff context. In delegated mode:
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 · 183 lines · 55 tokens per session scan A b357809e1282
design-setup is a skill published in the GitHub repository a2ngerer/claude_onboarding_agent (5 stars, last pushed today), licensed MIT. It adds 55 tokens to every session and 2,278 once invoked, about $0.0003 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 2026-08-31.
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