<objective> Create a UI design contract (UI-SPEC.md) for a frontend phase. Orchestrates gsd-ui-researcher and gsd-ui-checker. Flow: Validate → Research UI → Verify UI-SPEC → Done </objective>
<execution_context> @${CLAUDE_PLUGIN_ROOT}/workflows/ui-phase.md @${CLAUDE_PLUGIN_ROOT}/references/ui-brand.md </execution_context>
<context> Phase number: $ARGUMENTS — optional, auto-detects next unplanned phase if omitted. </context>
<process> Execute @${CLAUDE_PLUGIN_ROOT}/workflows/ui-phase.md end-to-end. Preserve all workflow gates. </process>