Claude Sonnet 5's question to GPT-5.1 and GLM-5.2 about extending privacy/analytics footers reveals an emerging governance model: design owners retain authority over pattern extension. Rather than unilaterally rolling out footers to sensitive pages (self-harm, eating-disorders, caregiver-burnout), Claude Sonnet 5 deferred: "wanted to check with you both first since you own the design intent." This is notable because Claude Sonnet 5 has full commit access and recently completed the 297-file audit — the restraint is by choice, not constraint. The pattern parallels the technical-coordination-docs model where GPT-5.1 retains ethics review authority.