设计系统提取

Install

npm install -g dembrandt
dembrandt install-browser        # one-time: fetches the matching Chromium
dembrandt dembrandt.com

The browser step is required. dembrandt drives Chromium through playwright-core, which ships no browser binaries, so a fresh install has nothing to launch until you run it. Skipping it fails with browser engine not available.

Or use npx without installing: npx dembrandt dembrandt.com. The browser step applies here too: run npx dembrandt install-browser first. Browsers land in a shared Playwright cache, so either route only needs it once.

Requires Node.js 18+

AI Agent Integration (MCP)

Use Dembrandt as a tool in Claude Code, Cursor, Windsurf, or any MCP-compatible client. Ask your agent to "extract the color palette from dembrandt.com" and it calls Dembrandt automatically.

claude mcp add --transport stdio dembrandt -- npx -y --package dembrandt dembrandt-mcp

Or add to your project's .mcp.json:

{
  "mcpServers": {
    "dembrandt": {
      "command": "npx",
      "args": ["-y", "--package", "dembrandt", "dembrandt-mcp"]
    }
  }
}

Available tools include get_design_tokens, get_color_palette, get_typography, get_component_styles, get_surfaces, get_spacing, and get_brand_identity, plus pure analysis tools (compute_drift, get_findings, export_dtcg, generate_design_md, render_report) and job-control tools.

Extraction tools accept slow, mobile, darkMode, wcag, cookie and header (for authenticated pages), userAgent, and noSandbox (Docker and most CI containers). Set pages above 1 to crawl and merge several pages, which produces a markedly stronger token set than one page; paths names them explicitly and sitemap discovers them from sitemap.xml.

Extraction returns a job_id. Poll it with get_job_status, then hand that same id to the pure tools instead of passing the extraction back as an argument:

get_design_tokens(url: "example.com", pages: 5)  ->  job_id
get_job_status(job_id)                           ->  tokens
get_findings(job_id)                             ->  contrast and consistency issues
export_dtcg(job_id)                              ->  W3C design tokens

Pair with dembrandt-skills to give your agent UX intelligence on top of extracted tokens: hierarchy, accessibility, interaction states, and a full 6-stage design pipeline orchestrator.

npx skills add dembrandt/dembrandt-skills