extract-design

Use this skill when the user wants to extract a webpage's design language into a reusable HTML style reference file, including typography, colors, spacing, surfaces, components, states, themes, motion, code-block styles, background atmosphere, decorative motifs, and art direction. The output should be a universal style specimen HTML for future AI-generated pages, not a 1:1 copy of the original page. Extracted style files are saved to the skill's own `assets/theme/` directory, never to the user's project.