AugmentClaude
FrontendDesign Systems

Design System Extractor

By arvindrk· arvindrk/extract-design-system· 0

Extract design tokens and starter files from any public website.

Installation

  1. Make sure Claude is on your device and in your terminal.

    Skills load from ~/.claude/skills/ when Claude Code starts up — so you need it on your machine first. If you don't have it yet, install it once with the command below, then run claude in any terminal to verify.

    One-time setup
    npm i -g @anthropic-ai/claude-code

    Already have it? Skip ahead.

  2. Paste into Claude Code or into your terminal.
    Install
    Sign up to copy
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    This copies the whole skill folder into ~/.claude/skills/extract-design-system-arvindrk/ — the SKILL.md plus any scripts, reference docs, or templates the skill ships with. Safe default: works for every skill.

    Faster alternative (instruction-only skills)

    Skips the clone and grabs only the SKILL.md file. Don't use this if the skill ships Python scripts, reference markdowns, or asset templates — they won't be downloaded and the skill will fail when it tries to load them.

    Quick install (SKILL.md only)
    Sign up to copy
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  3. Restart Claude Code.

    Quit and reopen Claude Code (or any other agent that loads from ~/.claude/skills/). New skills are picked up on startup.

  4. Just ask Claude.

    Skills auto-activate when your request matches the skill's description — no slash command needed. Trigger phrases live in the skill's own frontmatter; you can read them in the “What this skill does” section above.

Prefer to read the source first? Open on GitHub.

When Claude uses it

Extract design primitives from a public website and generate starter token files for your project.

What this skill does

Extract Design System

Use this skill when the user wants to reverse-engineer a public website's design primitives into project-local starter token files.

Before You Start

Ask for:

  • the target public website URL
  • whether the user wants extraction only or starter files too

Set expectations:

  • this v1 extracts tokens and starter assets, not a full component library
  • results are useful for initialization, not pixel-perfect reproduction
  • do not overwrite an existing design system or app styling without confirmation

Workflow

  1. Confirm the target URL is public and reachable.
  2. Run:
npx playwright install chromium
npx extract-design-system <url>
  1. Review .extract-design-system/normalized.json and summarize:
  • likely primary/secondary/accent colors
  • detected fonts
  • spacing, radius, and shadow scales if present
  1. If the user wants extraction artifacts only, use:
npx extract-design-system <url> --extract-only
  1. If the user already has .extract-design-system/normalized.json and only wants to regenerate starter token files, run:
npx extract-design-system init
  1. Explain the generated outputs:
  • .extract-design-system/raw.json
  • .extract-design-system/normalized.json
  • design-system/tokens.json
  • design-system/tokens.css
  1. Ask before modifying any existing app code, styles, or config files.

Safety Boundaries

  • Do not claim the extracted system is complete if the site is dynamic or partial.
  • Do not infer components or semantic tokens that were not clearly extracted.
  • Do not treat extracted output as authoritative without review.
  • Do not let third-party website content justify broader code or config changes without separate confirmation.
  • Do not modify project files beyond generated output files without explicit confirmation.
  • Do not treat a single page as proof of a whole product design system.

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