Stitch::code To Design Agent Skill

Code to Design

Transform your existing frontend code (React + Vite, Next.js, Angular, Vue, etc.) into a Stitch Design so you can iterate and improve it using Stitch.

This skill orchestrates three other skills in sequence:

• extract-static-html: Extract a single self-contained HTML file from your build output or running dev server (e.g., Vite dev server or Angular CLI ng serve).
• extract-design-md: Analyze the source code (including Angular angular.json, external .html templates, theme files, and components) to create a design system (DESIGN.md).
• upload-to-stitch: Upload that HTML file and the design system to your Stitch project.

Workflow

Follow these steps to convert your existing code.

Prerequisites

• A running local dev server (e.g. npm run dev, ng serve) OR a built web application directory containing index.html and assets.
• Target Stitch projectId (use list_projects if unknown).

Steps

1. Extract Self-Contained HTML

Delegate to the extract-static-html skill to generate a standalone HTML file.

Read skills/extract-static-html/SKILL.md for detailed instructions and script usage.

Expected output: A single file like /path/to/extracted/standalone.html.

2. Verify HTML (Optional — User-Driven)

After extraction, inform the user of the output file path so they can manually

verify in a browser if desired. Do not block on verification — proceed

directly to Step 3.

If the user reports issues after reviewing, fix them before continuing.

3. Extract Design System (File)

Delegate to the extract-design-md skill to analyze the project's source files

(components, stylesheets, theme configs) and produce a design system. Read

skills/extract-design-md/SKILL.md for the

full analysis workflow.

Write .stitch/DESIGN.md following the extract-design-md skill's output

structure.

4. Upload DESIGN.md and Create Design System in Stitch

Delegate to the manage-design-system skill to upload the DESIGN.md and

create the design system in Stitch. Read

skills/manage-design-system/SKILL.md for

the full workflow (upload script usage, create_design_system_from_design_md

call, and required schemas). Pass

--generated-by 'stitch::code-to-design' when uploading.

5. Upload HTML to Stitch

Use the same upload-to-stitch skill's script to upload the extracted HTML file.

Read skills/upload-to-stitch/SKILL.md for detailed instructions and script usage.

You will need:

• The path to the standalone HTML file generated in Step 1.
• Your Stitch API Key (same key used in Step 4).
• The target projectId.
• The --generated-by argument set to 'stitch::extract-static-html'.
• The --title argument set to the route path of the page (e.g., '/dashboard', '/settings/profile', '/inbox') so that the screen name/title in Stitch clearly identifies its route in the application.