What problem does it solve? When a user needs a visual report, explorable prototype, or complex diagram, plain text or Markdown often falls short. This Skill produces a single self-contained HTML file that renders offline, follows a consistent design system, and can be previewed safely in Fan. ## Core Features & Use Cases - Three authoring modes: choose between a report/explainer template, an SVG diagram template (light or dark-tech infrastructure style), or an interactive editor template with export actions. - Bundled design system: house-style tokens, typography, cards, tables, and code blocks keep every artifact visually consistent without external assets. - Safe preview workflow: artifacts are written to an approved workspace path and previewed through Fan's controlled preview surface, with strict rules against CDNs, remote assets, and unsafe local serving. - Use Case: A user asks for a visual comparison of three architecture options. The Skill loads the diagram template and dark-tech reference, authors an inline SVG diagram with semantic component colors, previews it, and returns the absolute .html path. ## Quick Start Ask the agent to create an HTML artifact, for example: create a self-contained HTML report visualizing this quarter's survey results as a diagram.