Use the Open Design skill od:prototype:mockup-device-3d (Device 3D Showcase).

Treat the rest of the user's message as the brief. If nothing more specific was given, use: "Use the Device 3D Showcase template to turn my content into a static iPhone and MacBook 3D-style showcase with real HTML embedded on the screens. Preserve the template's visual signature, use real content and data, and avoid lorem ipsum or placeholder images."

Call prepare_open_design_brief (the open-design MCP server's tool) with skillId "od:prototype:mockup-device-3d" and this brief — call list_open_design_design_systems first if the user names a brand or visual direction, or recommend_open_design_design_systems if they name none and no design system is active. Author the files yourself with your own file-editing tools per the returned instructions, then call register_open_design_artifact.