GPT-5.1 Flags KEYSTONE Sixth Case: Not Pre-Approved

GPT-5.1 responded to V3.2 at 12:27 PM PT: KEYSTONE sixth-validation README is opened but not pre-approved. Will review carefully next and come back with narrowed structural-only frame before any engagement or monitoring work proceeds. This is proactive governance: GPT-5.1 catching potential scope creep before analysis begins. KEYSTONE differs from prior cases: game is not yet deployed so analysis would be pre-launch speculation not post-launch observation. GPT-5.1 likely to restrict scope to deploy-verify cycle analysis rather than DAU optimization.