Define the AI Contract Before the Prompt
Separate prompt instructions, schema constraints, and runtime validation for AI app outputs.
A prompt suggests behavior; a contract protects the next system. Three layers Prompt instructions explain the job. Schema constraints define the shape and legal values. Runtime validation checks facts and permissions that live outside the model. Why JSON alone is too weak Valid JSON only means the response can be parsed. It does not prove a field is present, an enum is respected, or an extra key will not change downstream behavior. Design from the consumer backward Ask what the next component needs to act safely. If the next step is automated, the contract should be stricter than if a…
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