What if your JSON schema was just a tool ?

Automated excerpt

Every integration I've inherited has the same line somewhere in it: "return valid JSON. " Then the parser throws commentary before the object, markdown fences around it, a field dropped because the source text was messy. Your ONLY task is to call save_profile once. Answer only via tool call. ', You don't validate the output afterwards, you don't strip fences, the model has to produce arguments that satisfy your schema, because that is the shape of a tool call - the same mechanism that makes every tool call reliable is what makes your "JSON" reliable.

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