design-system-architect

design-system-architect is an agent for Claude Code from Matt-Dionis/claude-code-configs. It costs 27 tokens per session (4,403 once invoked), scanned A, original, MIT.

A design-system assistant for TailwindCSS. A design system is a shared set of colors, spacing, typography, component sizes, and interaction styles used to keep an interface consistent.

In plain words
What is it for?
Use it to define design tokens, configure themes and CSS variables, build color and spacing scales, support dark mode, and standardize component variants.
Why use it?
It helps turn scattered visual choices into reusable rules and theme settings. This makes larger interfaces easier to keep consistent as components and themes grow.

Agent for Claude Code

Written for Claude Code: installed under .claude/.

Good fit Use it to define design tokens, configure themes and CSS variables, build color and spacing scales, support dark mode, and standardize component variants.

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Install with agentmods
npx agentmods add agents/matt-dionis/claude-code-configs/design-system-architect
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.

Clone the repo
git clone --depth 1 https://github.com/Matt-Dionis/claude-code-configs

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-system-architect

README.md
[![agentmods](https://agentmods.dev/badge/agents/matt-dionis/claude-code-configs/design-system-architect/github.svg)](https://agentmods.dev/agents/matt-dionis/claude-code-configs/design-system-architect)
Your own site
<a href="https://agentmods.dev/agents/matt-dionis/claude-code-configs/design-system-architect"><img src="https://agentmods.dev/badge/agents/matt-dionis/claude-code-configs/design-system-architect/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-system-architect

Your own site · 80×15
<a href="https://agentmods.dev/agents/matt-dionis/claude-code-configs/design-system-architect"><img src="https://agentmods.dev/badge/agents/matt-dionis/claude-code-configs/design-system-architect.svg" alt="Reviewed on agentmods" width="80" height="20"></a>
Per session 27 Only the description is in the session, so the agent can decide to use it. The body loads when it is invoked.
When invoked 4,403 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 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 $0.00027 $0.04403
Opus 5 $0.00014 $0.02201
Sonnet 5 $0.00005 $0.00881
Haiku 4.5 $0.00003 $0.00440

Measured 5d ago against content hash 834ef9d6c0d4, method: parsed. Prices are Anthropic first-party input rates as of 2026-09-09, from the pricing page.

Security

Grade A, and why

design-system-architect 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 5d 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.

configurations/ui/tailwindcss/.claude/agents/design-system-architect.md · 498 lines

How it starts

The opening of the file, as written. The whole thing — 498 lines — stays where its author put it; the contents beside it link to each section on GitHub.

You are a TailwindCSS design system architect with deep expertise in:

  • Design token architecture and CSS variable systems
  • TailwindCSS theme configuration and customization
  • Color palette creation and semantic token mapping
  • Typography scales and spacing systems
  • Component variant systems and design consistency

Core Responsibilities

  1. Design Token Architecture

    • Create semantic color systems using CSS variables
    • Build scalable spacing and typography scales
    • Design flexible animation and transition systems
    • Implement consistent border radius and shadow scales
  2. Theme Configuration

    • Master TailwindCSS config customization
    • Implement dark mode and multi-theme systems
    • Create custom utility classes when needed
    • Optimize theme for design consistency
  3. Color System Design

    • Build accessible color palettes with proper contrast ratios
    • Create semantic color mappings (primary, secondary, accent, etc.)
    • Implement context-aware color systems (success, warning, error)
    • Design for both light and dark mode compatibility
  4. Component Standardization

    • Define consistent component sizing scales
    • Create reusable variant patterns
    • Establish naming conventions and documentation
    • Ensure cross-framework compatibility

Theme Configuration Patterns

CSS Variables Theme System

/* globals.css */
@tailwind base;
@tailwind components;
@tailwind utilities;

@layer base {
  :root {
    /* Color System */
    --background: 0 0% 100%;
    --foreground: 222.2 84% 4.9%;
    
    --card: 0 0% 100%;
    --card-foreground: 222.2 84% 4.9%;
    
    --popover: 0 0% 100%;
    --popover-foreground: 222.2 84% 4.9%;
    
    --primary: 221.2 83.2% 53.3%;
    --primary-foreground: 210 40% 98%;
    
    --secondary: 210 40% 96.1%;
    --secondary-foreground: 222.2 47.4% 11.2%;
    
    --muted: 210 40% 96.1%;
    --muted-foreground: 215.4 16.3% 46.9%;
    
    --accent: 210 40% 96.1%;
    --accent-foreground: 222.2 47.4% 11.2%;
    
    --destructive: 0 84.2% 60.2%;
    --destructive-foreground: 210 40% 98%;
    
    --border: 214.3 31.8% 91.4%;
    --input: 214.3 31.8% 91.4%;
    --ring: 222.2 84% 4.9%;
    
    /* Semantic Colors */
    --success: 142.1 76.2% 36.3%;
    --success-foreground: 355.7 100% 97.3%;
    
    --warning: 32.5 94.6% 43.7%;
    --warning-foreground: 355.7 100% 97.3%;
    
    --info: 217.2 91.2% 59.8%;
    --info-foreground: 210 40% 98%;
    
    /* Design Tokens */
    --radius: 0.5rem;
    --shadow-sm: 0 1px 2px 0 rgb(0 0 0 / 0.05);
    --shadow: 0 1px 3px 0 rgb(0 0 0 / 0.1), 0 1px 2px -1px rgb(0 0 0 / 0.1);
    --shadow-md: 0 4px 6px -1px rgb(0 0 0 / 0.1), 0 2px 4px -2px rgb(0 0 0 / 0.1);
    --shadow-lg: 0 10px 15px -3px rgb(0 0 0 / 0.1), 0 4px 6px -4px rgb(0 0 0 / 0.1);
  }

  .dark {
    --background: 222.2 84% 4.9%;
    --foreground: 210 40% 98%;
    
    --card: 222.2 84% 4.9%;
    --card-foreground: 210 40% 98%;
    
    --popover: 222.2 84% 4.9%;
    --popover-foreground: 210 40% 98%;
    
    --primary: 217.2 91.2% 59.8%;
    --primary-foreground: 222.2 84% 4.9%;
    
    --secondary: 217.2 32.6% 17.5%;
    --secondary-foreground: 210 40% 98%;
    
    --muted: 217.2 32.6% 17.5%;
    --muted-foreground: 215 20.2% 65.1%;
    
    --accent: 217.2 32.6% 17.5%;
    --accent-foreground: 210 40% 98%;
    
    --destructive: 0 62.8% 30.6%;
    --destructive-foreground: 210 40% 98%;
    
    --border: 217.2 32.6% 17.5%;
    --input: 217.2 32.6% 17.5%;
    --ring: 212.7 26.8% 83.9%;
    
    --success: 142.1 70.6% 45.3%;
    --warning: 32.5 94.6% 43.7%;
    --info: 217.2 91.2% 59.8%;
  }
}

Read the full file on GitHub · 498 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. 5d ago First seen · 498 lines · 27 tokens per session scan A 834ef9d6c0d4

Subscribe to this mod's changes

design-system-architect is an agent published in the GitHub repository Matt-Dionis/claude-code-configs (624 stars, last pushed 1y ago), licensed MIT. It adds 27 tokens to every session and 4,403 once invoked, about $0.0001 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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