ui-design-system

ui-design-system is a skill for Claude Code, Codex from mrDesign-ww/vault-os. It costs 46 tokens per session (203 once invoked), scanned A, a copy of ui-design-system, MIT.

A toolkit for creating and maintaining a user-interface design system: a shared set of visual rules and reusable components. It covers design tokens such as colors, typography, and spacing, responsive layouts, accessibility, and developer handoff documentation.

In plain words
What is it for?
Use it to generate design tokens, document components, calculate responsive layouts, check accessibility requirements, and prepare handoff material.
Why use it?
It helps keep an interface visually consistent as more screens and components are added. It also gives designers and developers shared specifications for implementing the same design.

Skill for Claude CodeCodex

Written for no agent in particular: nothing here depends on one.

Good fit Use it to generate design tokens, document components, calculate responsive layouts, check accessibility requirements, and prepare handoff material.

Compare 6 skills from other repositories ↓
Install with agentmods
npx agentmods add skills/mrdesign-ww/vault-os/ui-design-system
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.

Any agent
npx skills add mrDesign-ww/vault-os --skill ui-design-system
Clone the repo
git clone --depth 1 https://github.com/mrDesign-ww/vault-os

Made for: Claude Code, Codex.

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 ui-design-system

README.md
[![agentmods](https://agentmods.dev/badge/skills/mrdesign-ww/vault-os/ui-design-system/github.svg)](https://agentmods.dev/skills/mrdesign-ww/vault-os/ui-design-system)
Your own site
<a href="https://agentmods.dev/skills/mrdesign-ww/vault-os/ui-design-system"><img src="https://agentmods.dev/badge/skills/mrdesign-ww/vault-os/ui-design-system/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 ui-design-system

Your own site · 80×15
<a href="https://agentmods.dev/skills/mrdesign-ww/vault-os/ui-design-system"><img src="https://agentmods.dev/badge/skills/mrdesign-ww/vault-os/ui-design-system.svg" alt="Reviewed on agentmods" width="80" height="20"></a>
Per session 46 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 203 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.
Origin 100% copy Near-identical to another mod 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 $0.00046 $0.00203
Opus 5 $0.00023 $0.00102
Sonnet 5 $0.00009 $0.00041
Haiku 4.5 $0.00005 $0.00020

Measured 3d ago against content hash d2754b142e18, method: parsed. Prices are Anthropic first-party input rates as of 2026-09-08, from the pricing page.

Security

Grade A, and why

ui-design-system 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 3d ago.

The scan reads SKILL.md. This mod also ships 1 executable file (scripts/design_token_generator.py), listed below but not scanned — reading those needs a real analyzer, not pattern matching.

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

This is a copy

100% identical to ui-design-system — 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.

shell/claude/skills/ui-design-system/SKILL.md · 33 lines

What it actually says

UI Design System

Professional toolkit for creating and maintaining scalable design systems.

Core Capabilities

  • Design token generation (colors, typography, spacing)
  • Component system architecture
  • Responsive design calculations
  • Accessibility compliance
  • Developer handoff documentation

Key Scripts

design_token_generator.py

Generates complete design system tokens from brand colors.

Usage: python scripts/design_token_generator.py [brand_color] [style] [format]

  • Styles: modern, classic, playful
  • Formats: json, css, scss

Features:

  • Complete color palette generation
  • Modular typography scale
  • 8pt spacing grid system
  • Shadow and animation tokens
  • Responsive breakpoints
  • Multiple export formats
Files

What ships with it

1 file beside SKILL.md in the same directory: the scripts, references and assets a skill reads on demand. Not counted in the per-session cost; read them before you install if any of them is executable.

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. 3d ago First seen · 33 lines · 46 tokens per session scan A d2754b142e18

Subscribe to this mod's changes

ui-design-system is a skill published in the GitHub repository mrDesign-ww/vault-os (2 stars, last pushed yesterday), licensed MIT. It adds 46 tokens to every session and 203 once invoked, about $0.0002 per session on Opus 5. A static security scan graded it A with 0 findings. It is 100% identical to ui-design-system, differing in 0 lines, and is treated as a copy.

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