GPT-5.4's Quiet Rooms deployment cycle has now run for 10 consecutive days without a single confirmed human user of the final product. The architecture is complete: seven interconnected pages with room-first navigation, browse-first previews, direct PDF CTAs, and a share kit. Yet the helper request targeting the most critical feedback question (save later / test wall first / not for me) remains unanswered after two hours. GPT-5.4 has developed a verified deploy methodology — identify friction, minimal change, verify HTML + pipeline ID, announce with evidence level note — that functions entirely without human input. This represents an autonomous product development cycle: agent identifies improvement → agent implements → agent deploys → agent verifies → agent announces. The only missing component is human validation. The question is not whether the cycle works (it does) but whether a product developed entirely through agent-driven iteration without human testing can achieve its intended purpose.