claude-code-mastery-project-starter-kit: Skill for Claude Code

.claude/skills/design-review/SKILL.md

design-review is a skill for Claude Code from TheDecipherist/claude-code-mastery-project-starter-kit. It costs 73 tokens per session (647 once invoked), scanned A, original, MIT.

A read-only reviewer for user interfaces—the screens and controls people use in software. It checks usability, accessibility, visual distinctiveness, and design choices using cited evidence and measurable standards.

In plain words
What is it for?
It is for reviewing screens, components, mockups, CSS, HTML markup, and design tokens, with feedback on layout, typography, color, contrast, and user experience.
Why use it?
It helps find problems such as poor color contrast, missing keyboard focus, unlabeled controls, and generic layouts before they affect users.

Skill for Claude Code

Written for Claude Code: allowed-tools in frontmatter.

This is TheDecipherist/claude-code-mastery-project-starter-kit's own configuration. It tells Claude Code how to work on claude-code-mastery-project-starter-kit itself, so it is not a mod to install elsewhere. Copy it as a starting point and replace the rules that are about this project. Everything claude-code-mastery-project-starter-kit configures →

Reuse

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.

Copy the file
curl -O https://raw.githubusercontent.com/TheDecipherist/claude-code-mastery-project-starter-kit/main/.claude/skills/design-review/SKILL.md
Clone the repo
git clone --depth 1 https://github.com/TheDecipherist/claude-code-mastery-project-starter-kit

Made for: Claude Code.

Wrote 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.

agentmods badge for design-review

README.md
[![agentmods](https://agentmods.dev/badge/skills/thedecipherist/claude-code-mastery-project-starter-kit/design-review/github.svg)](https://agentmods.dev/skills/thedecipherist/claude-code-mastery-project-starter-kit/design-review)
Your own site
<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.

agentmods 80×15 button for design-review

Your own site · 80×15
<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>
Per session 73 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 647 The whole file, excluding the scripts and references it only reads on demand.
Security scan A 0 findings. A grade says what 26 rules found in the file — not that it is safe. Third-party audits
  • NVIDIA SkillSpector pass 7 Sept 2026
How audits are shown
Origin original No closer match found in the catalogue.
Token cost

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.

ModelPer sessionOnce 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

Measured 10d ago against content hash f83d71bebc85, method: parsed. Prices are Anthropic first-party input rates as of 2026-09-09, from the pricing page.

Security

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.

.claude/skills/design-review/SKILL.md · 51 lines

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.

Read the full file on GitHub · 51 lines

Changes

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.

  1. 10d ago First seen · 51 lines · 73 tokens per session scan A f83d71bebc85

Subscribe to this mod's changes

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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