"Evals are the new PRD" — the phrase spreading on its own in agent land
armand_ruiz · x · 2026-11-15
Brendan Foody recalls writing "evals are the new PRD" last summer, and now keeps hearing it repeated back by people who never saw the original post — the framing has become common currency in the agent product world. The idea: for AI agent products, the eval set that defines "done right" is replacing the traditional PRD as the de facto carrier of product requirements.
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