Validation Is a Runtime Loop, Not a Final Checkbox
Build a mental model for layered validation and recovery after a structured response arrives.
Reliable systems do not just validate; they decide what to do next for each failure class. The control stack Prompt wording teaches meaning. Structured output features protect parseability. Schemas protect shape. Validators protect live correctness and policy. The common mistake Teams often celebrate valid JSON and miss that their downstream system still has no reliable contract for required fields, enums, or extra-key handling. The practical test Ask what the next consumer needs, what breaks if a field drifts, and whether the workflow is only informative or actually action-driving. Why this holds up Separating the layers makes debugging faster because you…
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