The SDK validates the model's response against this before any of it reaches the database, so a model that answers in prose or invents a field becomes a caught error rather than a row full of nonsense.
Everything the model may decline to answer is nullable, because it is told to say nothing rather than guess. A null category is a better answer than a wrong one, and resolving it is what the review queue is for. The name and description are not nullable: a draft without them is not a partial success worth storing.
The price is an integer, bounded at both ends. A fractional, negative or absurd figure reaching the review queue is a number somebody has to notice is wrong, and being trustworthy at a glance is that queue's whole job.
Co-Authored-By: Claude Opus 5 <noreply@anthropic.com>
