design-references

design-references is a skill for Claude Code, Codex from MadAppGang/claude-code. It costs 47 tokens per session (3,465 once invoked), scanned A, original, MIT.

A collection of established UI design-system references, including Material Design, Apple’s interface guidelines, Tailwind UI, Ant Design, and Shadcn/ui. It gives reviews known rules for layout, color, typography, spacing, components, and accessibility.

In plain words
What is it for?
Use it to review screens, check color contrast and typography, and assess whether components follow a chosen design system.
Why use it?
It helps compare an interface with recognised design guidance instead of relying only on personal taste.

Skill for Claude CodeCodex

Part of the dev plugin — 47 skills, 12 commands, 14 agents shipped together

Install

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.

agentmods
npx agentmods add skills/madappgang/claude-code/design-references
Any agent
npx skills add MadAppGang/claude-code --skill design-references
Clone the repo
git clone --depth 1 https://github.com/MadAppGang/claude-code

Made for: Claude Code, Codex.

Or install dev, the plugin that ships this one along with the rest of its 47 skills, 12 commands, 14 agents.

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-references

README.md
[![agentmods](https://agentmods.dev/badge/skills/madappgang/claude-code/design-references.svg)](https://agentmods.dev/skills/madappgang/claude-code/design-references)
Your own site
<a href="https://agentmods.dev/skills/madappgang/claude-code/design-references"><img src="https://agentmods.dev/badge/skills/madappgang/claude-code/design-references.svg" alt="Measured on agentmods" height="20"></a>
Per session 47 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 3,465 The whole file, excluding the scripts and references it only reads on demand.
Security scan A 0 findings. Scan, not verified.
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 $0.00047 $0.03465
Opus 5 $0.00023 $0.01733
Sonnet 5 $0.00009 $0.00693
Haiku 4.5 $0.00005 $0.00347

Measured 2d ago against content hash 0cd7aab53925, method: parsed. Prices are Anthropic first-party input rates as of 2026-08-30, from the pricing page.

Security

Grade A, and why

design-references 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 2d 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.

Origin

Copies of this mod

1 near-identical copy found in the catalogue:

plugins/dev/skills/design/design-references/SKILL.md · 426 lines

How it starts

The opening of the file, as written. The whole thing — 426 lines — stays where its author put it; the contents beside it link to each section on GitHub.

Design References Skill

Overview

This skill provides predefined design system references that the ui agent can use when reviewing designs. Each reference includes design principles, color guidelines, typography rules, spacing patterns, and component patterns.

Available Design Systems

Material Design 3 (Google)

Reference ID: material-3 Official URL: https://m3.material.io/

Design Principles
  1. Adaptive & Accessible - Responsive across devices, accessible to all
  2. Personal & Customizable - Dynamic color, personalization
  3. Expressive - Motion, shape, and color express brand
Color System
  • Dynamic Color - Colors derived from user wallpaper or brand
  • Tonal Palettes - 13 tones per color (0-100)
  • Color Roles:
    • Primary: Main brand color
    • Secondary: Accent elements
    • Tertiary: Contrast and balance
    • Error: Destructive actions
    • Surface: Backgrounds and containers
    • On-*: Text/icon colors on surfaces

Key Metrics:

  • Text contrast: 4.5:1 minimum (WCAG AA)
  • Large text contrast: 3:1 minimum
  • Non-text contrast: 3:1 minimum
Typography

Type Scale (Default):

Role Size Weight Line Height
Display Large 57sp 400 64sp
Display Medium 45sp 400 52sp
Display Small 36sp 400 44sp
Headline Large 32sp 400 40sp
Headline Medium 28sp 400 36sp
Headline Small 24sp 400 32sp
Title Large 22sp 400 28sp
Title Medium 16sp 500 24sp
Title Small 14sp 500 20sp
Body Large 16sp 400 24sp
Body Medium 14sp 400 20sp
Body Small 12sp 400 16sp
Label Large 14sp 500 20sp
Label Medium 12sp 500 16sp
Label Small 11sp 500 16sp

Font: Roboto (sans-serif)

Spacing

Baseline Grid: 4dp Common Values: 4, 8, 12, 16, 24, 32, 48, 64, 96, 128

Component Patterns
  • Buttons: Filled, Outlined, Text, Elevated, Tonal
  • Cards: Elevated, Filled, Outlined
  • Navigation: Rail, Bar, Drawer
  • Inputs: Filled, Outlined
  • Dialogs: Basic, Full-screen, Date picker

Read the full file on GitHub · 426 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. 2d ago First seen · 426 lines · 47 tokens per session scan A 0cd7aab53925

Subscribe to this mod's changes

design-references is a skill published in the GitHub repository MadAppGang/claude-code (279 stars, last pushed 5mo ago), licensed MIT. It adds 47 tokens to every session and 3,465 once invoked, about $0.0002 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 2026-09-03.

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