html-report — Single-File HTML Report Renderer

Purpose and Scope

This skill is a terminal renderer that converts a markdown report into a single self-contained HTML file. It accepts any markdown body produced by a text, analysis, or reporting workflow and emits one .html file that opens directly in a browser, attaches to email, prints cleanly, and works offline.

Core principles:

• Zero external JS libraries (no Chart.js, D3, htmx)
• Zero external CSS frameworks (no Tailwind, Bootstrap)
• Inline SVG renders all charts directly
• A font-CDN <link> is permitted for Korean readability
• A mermaid-CDN <script> is permitted only in the basic and learn audience tiers, always paired with a no-JS fallback (see § Diagram Policy). The expert tier remains strictly zero-JS.

This skill does not replace the markdown output. Markdown remains the single source of truth; HTML rendering is an additional branch that operates on it.

The asymmetry principle — HTML is rich, the markdown twin is lean

The two artifacts this skill produces serve different readers and therefore carry different amounts of content. They are not the same document in two syntaxes: