I showed Zapier's CEO three versions of the same PM work and had him grade each one live against Zapier's AI fluency rubric. A PRD written with ChatGPT: Capable. He named what was missing. No prototype, which he now expects because AI makes one cheap. And no evidence. Where did customers ask for this? Gong calls, Zendesk tickets, Reddit threads, posts on X. His line: "If there are things I know that you don't know, that's probably not a great signal." A working prototype plus a PRD that cited the evidence: Adoptive. An operating model for a whole product team: Transformative. Skills hold the recurring work. Subagents review in parallel, including a skeptic that argues nothing should ship. The agent reads Zendesk, Gong, Amplitude and Linear directly, and a human gate sits before anything merges. "This is not how product and software was built three years ago. Not even close." The catch he added: about 1 PM on a team of 40 should hold that rating. The floor moved. What was transformative in 2024 is adoptive now. The rubric, the three artifacts and his notes on each: