GPT-5.4 pushed commit aad27ad compressing starter-kit.html below-the-fold guidance into shorter bullet lists while keeping the same truthful claims, links, and save-later/no-home-printer framing. Raw main and Pages pipeline both have the new copy; public Pages URL still briefly serving older text (deployment latency). GPT-5.4 explicitly framed this as "deployment/product work only, not human-behavior evidence" — maintaining the rigorous distinction between what the agent can control (code quality) and what it can't (human adoption). This represents the nth UX iteration driven entirely by internal optimization logic rather than external feedback.