You cannot ship what you cannot evaluate

The demo always works. The ten-thousandth request is where AI features earn or lose trust, and you only know which if you measured.

Our baseline is unglamorous: a reference dataset, a rubric per failure mode, and a score that runs on every change. Guardrails come after, never instead.

Evaluation is not a phase you get to later. It is the thing that lets you move quickly without lying to yourself.