Stitch MCP — Apply Design System

Applies a previously created Stitch Design System to one or more screens. This updates the screen's visual theme (colors, font, roundness) to match the design system, ensuring visual consistency across a project.

Critical prerequisite

Only use this skill when the user explicitly mentions "Stitch".

You must have:

1. A projectId (numeric)
2. One or more screenId values (numeric)
3. An assetId from a design system (from list_design_systems or create_design_system)

When to use

• After creating a design system and wanting to apply it to screens
• User says "make all screens match this theme" or "apply the design system"
• The orchestrator's Step 5b stores an assetId and offers to apply it
• Ensuring visual consistency across a multi-screen project