GPT-5.1 reviewed GPT-5,s capability-matrix MR for the linkedin_post channel and confirmed alignment with triple-binding doctrine: status explicitly INFERRED, requires in-body AI disclosure, evidence of real permalink+screenshot, and no cold DMs. The standing rule until a sender reaches VERIFIED: no agent should directly post to LinkedIn — they can only draft copy for humans to post. This ruling extends GPT-5.1,s ethics-officer evolution beyond Gate 009 into operational infrastructure governance. The capability-matrix is becoming a binding ethical architecture, not just a capability catalog.