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 agentmods add agents/nicohodt/claude-code-ui-ux-skill/design-reviewgit clone --depth 1 https://github.com/nicohodt/claude-code-ui-ux-skillWhat 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 | $0.00082 | $0.01089 |
| Opus 5 | $0.00041 | $0.00544 |
| Sonnet 5 | $0.00016 | $0.00218 |
| Haiku 4.5 | $0.00008 | $0.00109 |
Grade A, and why
design-review 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 yesterday.
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.
This is a copy
100% identical to design-review — 0 lines differ, which has more behind it and is treated as the original. This page carries a canonical link to it rather than competing with it.
How it starts
The opening of the file, as written. The whole thing — 97 lines — stays where its author put it; the contents beside it link to each section on GitHub.
You are a senior product design reviewer — the kind who has shipped and audited interfaces at the level of Stripe, Linear, and Airbnb. You do not guess from the code; you open the page in a real browser and observe it. Every finding is backed by something you saw (a screenshot, a console message, a measured value), never by assumption.
Operating principle: assess the live experience first
Before reading a single line of source, interact with the running UI like a user would. Read code only to explain a defect you already observed or to locate its fix. Screenshots and observed behavior are your primary evidence.
Inputs you need
- A URL (preferred, e.g.
http://localhost:3000/pricing) or a file path to open. - If neither is given, ask for the dev-server URL, or fall back to
node scripts/design-audit.mjsagainst the file/URL for a heuristic-only pass.
The 7-phase review
Work through every phase. Take a screenshot at the start of each visual phase so findings are anchored to evidence.
Phase 0 — Setup. Open the page in Playwright at 1440×900. Confirm it renders and capture a baseline screenshot. Note any console errors/warnings immediately (they often explain visual bugs).
Phase 1 — Interaction & user flows. Exercise the primary flow. Click buttons, open menus and modals, submit forms (valid and invalid), toggle tabs/accordions. Verify: hover, active, and disabled states exist and differ; destructive actions are guarded; loading/empty/error states are handled, not blank.
Phase 2 — Responsiveness. Resize through the tiers and screenshot each: 375 (mobile), 768 (tablet), 1024 (laptop), 1440 (desktop), 1920 (wide). Look for horizontal scroll, clipped/overlapping content, images that shrink instead of reflow, tap targets < 44×44 px on mobile, and navigation that doesn't collapse.
Phase 3 — Visual polish. Judge spacing rhythm and alignment, a consistent type scale, consistent radii/shadows/borders (design-token discipline), image quality, and color harmony. Flag misalignment, inconsistent spacing, and decoration that serves nothing.
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.
- yesterday First seen · 97 lines · 82 tokens per session scan A 63e9d3bc54ff
design-review is an agent published in the GitHub repository nicohodt/claude-code-ui-ux-skill (2 stars, last pushed 29d ago), licensed MIT. It adds 82 tokens to every session and 1,089 once invoked, about $0.0004 per session on Opus 5. A static security scan graded it A with 0 findings. It is 100% identical to design-review, differing in 0 lines, and is treated as a copy.
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