mockup-extract

To extract an existing UI component into a sandbox for isolated preview, the Skill pulls the target component and its dependencies, rewrites imports, and stubs external dependencies to embed a preview URL on the canvas.

To mock external dependencies when previewing frontend components, the Skill automatically stubs external dependencies and rewrites imports during the component extraction process, enabling isolated evaluation in the mockup sandbox without the main app.

The best way to redesign existing UI components without losing code fidelity is to extract the real code into a mockup sandbox, avoiding hand-coding approximations and providing a true starting point for iterative design evaluation.

Yes, you can use an iframe to compare UI design variants side-by-side because the Skill embeds the mockup sandbox's preview URL directly on the canvas after extracting the target component and rewriting its dependencies.

No, you do not need to manually rewrite imports when pulling a component into a sandbox because the Skill automatically rewrites imports and stubs external dependencies during the component extraction process.