Open Design Game UI Handoff

Package what the game already does before asking Open Design to change it. Treat runtime omission from a standalone as unspecified, never as permission to simplify.

Read docs/hard-rules/ui-adaptation-upgrade-only-contract.md and preservation-contract.md before capturing evidence.

Package content standard = claude-design-handoff-generate (owner benchmark)

The battle-tested claude-design-handoff-generate skill is the CONTENT standard for every Open Design handoff — Open Design gets the same package a Claude Design session would get, plus an Open-Design delta. Do not reinvent a thinner brief.