Agent Skills: frontend-ui-prototype

Build a question-driven, browser-testable frontend prototype with a single index.html and locally downloaded raster assets. Use when turning a product idea, existing app, repository, screenshot, or live URL into a landing page or UI prototype before production implementation. Inspect product truth, ask concrete intake questions, research and select a suitable DESIGN.md direction, decide how real screenshots, photography, generated imagery, or illustration should be used, then create index.html, DESIGN.md, a Makefile, and any needed assets, and verify the result at desktop and mobile widths. Do not use for production application architecture, backend work, or pixel-perfect cloning.