A quality gate is an automated check that compares evaluation scores against a threshold and blocks the release when quality regresses. Run offline against a frozen dataset in CI/CD, or online against sampled production traffic, gates turn evaluation from a report into a control.
Why it matters
A quality gate converts evaluation from a report someone might read into a control that stops a bad change from shipping.
How it works
Evaluation scores are compared against a threshold. In CI/CD, a failing score blocks the deploy; online, a failing score flags the sampled request. Either way the decision is automated and consistent.