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Design Md Firefox

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Description

Firefox extension that extracts styles from any websites and generates DESIGN.md and SKILL.md files for Google Stitch, Claude Design, Codex and Cursor

Installation

This entry records only its repository, not the path inside it, so there is no exact command to give. Open the source below and copy the folder into ~/.claude/skills/, or the file into ~/.claude/agents/.

README

TypeUI DESIGN.md Extractor (Firefox Extension)

This Firefox extension extracts styles and information from a given site and generates a `DESIGN.md` or `SKILL.md` file that you can use with tools such as Google Stitch, Claude Code, Codex, and others to build websites with a given design system blueprint. The file is based on the open-source [TypeUI DESIGN.md](https://www.typeui.sh/design-md) format.

designmdfirefox

Getting started

Load the extension in Firefox:

  1. Open about:debugging#/runtime/this-firefox
  2. Click Load Temporary Add-on...
  3. Select this project's manifest.json
  4. Pin the extension and open the popup on any regular website tab

To distribute publicly, package and sign the add-on through AMO.

Curated design skills

Check out curated design systems at [typeui.sh/design-skills](https://www.typeui.sh/design-skills).

Available actions

Action Description
Auto-extract Reads styles from the active tab (typography, colors, spacing, radius, shadows, motion).
Generate DESIGN.md Produces design-system documentation markdown from extracted signals.
Generate SKILL.md Produces agent-ready skill markdown from extracted signals.
Refresh Re-runs extraction for the current page state.
Download Saves generated output as DESIGN.md or SKILL.md.
Explain (?) Shows how the file was generated, with TypeUI reference.

Generated file structure

The generated markdown follows this structure:

Section What it does
Mission Defines the design-system objective for the extracted site.
Brand Captures product/brand context, URL, audience, and product surface.
Style Foundations Lists inferred visual tokens and foundations.
Accessibility Applies WCAG 2.2 AA requirements and interaction constraints.
Writing Tone S