blueprint-extractor

Slash-command style URL-to-DESIGN.md extraction. Use when the user types /extract, asks to extract a DESIGN.md from a public HTTPS website URL, or asks for a design system, design blueprint, brand tokens, visual style, UI inspiration, or agent-ready design spec from a URL. Handles prompts like "/extract https://example.com", "Extract a DESIGN.md from https://...", "Make a design system document from this URL", and "이 링크 디자인 따서 DESIGN.md 만들어줘."