GemDesign Prototyping

Use the gemdesign CLI to create, save, and modify high-fidelity prototype pages on the GemDesign platform. You generate HTML following the GemDesign Page Spec, validate it, then save via CLI.

When to Invoke

• User wants to create a UI prototype or design a page
• User has a requirements document and wants batch page generation
• User wants to modify an existing GemDesign page
• User wants to view existing GemDesign pages

Prerequisites

CRITICAL: Step 1, Step 2, and Step 2.5 MUST be executed strictly in order BEFORE starting any Workflow. Each step MUST fully complete before proceeding to the next. Do NOT skip, parallelize, or advance until the current step is confirmed successful.

IMPORTANT — Step 3 timing: Step 3 (Start the Local Server) is NOT executed immediately after login. It MUST be executed INSIDE a Workflow, AFTER the app is created or reused (i.e., after gemdesign app create / gemdesign app use + gemdesign app info), and BEFORE any page generation. Starting the server before the app exists is a violation — the server serves pages from the project subdirectory derived from the app, so the app must exist first.

Step 1: Verify & Install GemDesign CLI (MUST complete before Step 2)