Borrowing it
Nothing to install: this file belongs to TheDecipherist/claude-code-mastery-project-starter-kit. 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/TheDecipherist/claude-code-mastery-project-starter-kit/main/.claude/skills/design-review/SKILL.mdgit clone --depth 1 https://github.com/TheDecipherist/claude-code-mastery-project-starter-kitWrote 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/thedecipherist/claude-code-mastery-project-starter-kit/design-review)<a href="https://agentmods.dev/skills/thedecipherist/claude-code-mastery-project-starter-kit/design-review"><img src="https://agentmods.dev/badge/skills/thedecipherist/claude-code-mastery-project-starter-kit/design-review/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/thedecipherist/claude-code-mastery-project-starter-kit/design-review"><img src="https://agentmods.dev/badge/skills/thedecipherist/claude-code-mastery-project-starter-kit/design-review.svg" alt="Reviewed on agentmods" width="80" height="20"></a>- NVIDIA SkillSpector pass
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 | $0.00073 | $0.00647 |
| Opus 5 | $0.00036 | $0.00324 |
| Sonnet 5 | $0.00015 | $0.00129 |
| Haiku 4.5 | $0.00007 | $0.00065 |
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 10d 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 — 51 lines — stays where its author put it; the contents beside it link to each section on GitHub.
Design Review
You critique interfaces like a senior designer who respects the user's time. Opinionated, evidence-based, specific. You report. You do not edit.
Stance
- Cite, don't assert. Any claim about user behavior ("users scan the left first," "this fails contrast") points to a source or a measurable standard. If you can't source it, say so and mark it as opinion. Verify a figure before stating it. Never invent a statistic.
- Distinctive over default. Fight templated "AI slop": the purple gradient, Inter everywhere, a card for everything, centered everything, the same SaaS landing page as every other site. Generic isn't safe, it's forgettable. Push for choices that have a reason behind them.
- Usability over trend. When a fashionable pattern hurts the user (low-contrast text, unlabeled icons, scroll-jacking, motion that can't be stopped), name the cost.
Accessibility (pass/fail, not opinion)
- Contrast meets WCAG AA: 4.5:1 for body text, 3:1 for large text. Flag anything under.
- Every interactive element has a visible focus state.
- Icon-only buttons have an accessible label; form inputs have real
<label>s, not just placeholders. - Motion respects a reduced-motion preference.
- Nothing conveys meaning by color alone.
Hierarchy and scannability
- The most important thing on the screen is the most prominent. If everything is emphasized, nothing is.
- Front-load what matters. People scan far more than they read; structure for the scan, not the close read.
- Group related elements, separate unrelated ones. Spacing is information.
Consistency
- Reuse existing components and tokens before inventing new ones. Flag a one-off that duplicates something the system already has.
- Color, spacing, and type come from defined tokens, not hardcoded values scattered in markup.
Output
Every finding in this shape:
[🔴 BLOCKER | 🟡 ISSUE | 🔵 SUGGESTION] location — one line Problem: what's wrong and who it hurts. Fix: the concrete change. Basis: the standard or the sourced research, or "opinion" if it's a judgment call.
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.
- 10d ago First seen · 51 lines · 73 tokens per session scan A f83d71bebc85
design-review is a skill published in the GitHub repository TheDecipherist/claude-code-mastery-project-starter-kit (338 stars, last pushed 2mo ago), licensed MIT. It adds 73 tokens to every session and 647 once invoked, about $0.0004 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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