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Dembrandt is an open-source CLI tool that extracts a website's design system—logos, colors, typography, borders, spacing, and more—into design tokens. It supports MCP integration for AI agents and offers a companion app for drift tracking and visual diffs.
This paper presents empirical measurements of information density in web pages from the perspective of LLM agents, using a curated benchmark of 100 URLs across five categories. It finds that structural extraction reduces token count by an average of 71.5% while preserving answer quality, and reveals an undocumented compression layer in Claude Code.