# Extract DESIGN.md

Turns a domain into a self-contained DESIGN.md — gathering the styleguide, screenshot, and homepage Markdown from context.dev, then composing the document in a single Claude call.

> For the complete documentation index, see [llms.txt](/llms.txt). Markdown variants are available by appending `.md` to any URL or sending an `Accept: text/markdown` header. An agent skill is available at [/.well-known/agent-skills/site-skill.md](/.well-known/agent-skills/site-skill.md).



<DocsBaseSwitcher base="langgraph" agent="extract-design-md" />

<AgentPreview
  agent="extract-design-md"
  framework="langgraph"
  inputFields="[
  {
    name: &#x22;domain&#x22;,
    label: &#x22;Domain&#x22;,
    placeholder: &#x22;stripe.com&#x22;,
    type: &#x22;text&#x22;,
  },
]"
/>

## Summary [#summary]

The **Extract DESIGN.md Agent** turns any public website into design artifacts.
The `compose_design_md` tool gathers the styleguide, brand, a homepage
screenshot, and clean page Markdown through context.dev, then returns **three
outputs**, which the agent relays verbatim:

* **DESIGN.md** — composed in **one Claude call** (screenshot passed as
  a vision image): token frontmatter (`version: alpha`, colors, typography,
  rounded, spacing, components) plus the canonical sections (Overview, Colors,
  Typography, Layout, Elevation, Shapes, Components, Do's and Don'ts).
* **Tailwind v4 `@theme` block** — derived **deterministically** from the
  styleguide + brand in `lib/derive-tokens.ts`.
* **CSS `:root` tokens** — the same tokens as vanilla CSS variables.

It follows the [designmd.supply](https://designmd.supply) pipeline — the same
prompt spec and deterministic token derivers — running on Claude.

## Installation [#installation]

<CodeTabs>
  <TabsList>
    <TabsTrigger value="cli">
      Command
    </TabsTrigger>

    <TabsTrigger value="manual">
      Manual
    </TabsTrigger>
  </TabsList>

  <TabsContent value="cli">
    ```bash
    npx shadcn@latest add @agentcn/langgraph/extract-design-md
    ```
  </TabsContent>

  <TabsContent value="manual">
    <Steps>
      <Step>
        Install the following dependencies:
      </Step>

      ```bash
      npm install @dawn-ai/sdk
      ```

      <Step>
        Copy and paste the following agent route files into your project.
      </Step>

      <ComponentSource src="registry/langgraph/extract-design-md/index.ts" title="index.ts" />

      <ComponentSource src="registry/langgraph/extract-design-md/instructions.md" title="instructions.md" />

      <ComponentSource src="registry/langgraph/extract-design-md/lib/compose.ts" title="lib/compose.ts" />

      <ComponentSource src="registry/langgraph/extract-design-md/lib/derive-tokens.ts" title="lib/derive-tokens.ts" />

      <ComponentSource src="registry/langgraph/extract-design-md/lib/design-md.ts" title="lib/design-md.ts" />

      <ComponentSource src="registry/langgraph/extract-design-md/tools/compose_design_md.ts" title="tools/compose_design_md.ts" />

      <Step>
        Run `dawn check` after copying so route and tool metadata are regenerated.
        `dawn dev`, `dawn build`, and `dawn verify` also run the same discovery path.
      </Step>
    </Steps>
  </TabsContent>
</CodeTabs>

## Composition [#composition]

```text
├── index.ts
├── instructions.md
├── lib/compose.ts
├── lib/derive-tokens.ts
├── lib/design-md.ts
├── tools/compose_design_md.ts
```

## Customization [#customization]

* Edit `index.ts` to change the model, description, or system prompt.
* Add route-local tools under `tools/`; tool input and output types are inferred from TypeScript.
* Run `dawn verify` before deploying generated LangGraph artifacts.