EVALUATION LAB / SYNTHETIC
Fluent is not the same as correct.
Three invented outputs for one fixed input. Change the criteria and inspect the decision. These are teaching fixtures, not scores for real providers.
One controlled case
Input: Product A has a quoted price of 40. No supplier verification was provided. Required output: price (number), supplier_verified (boolean), limitations (array).
What this does and does not establish
A deterministic contract check can reject a malformed response. It cannot establish the truth of a supplier claim. A sample that passes is still a sample; use controlled evaluation and human review before drawing a wider conclusion.