Structured output and JSON

If your code consumes the output, it needs a schema. Constrain the shape, then validate the response before anything downstream touches it.

What this lesson covers

• Constrain responses to a declared schema
• Validate the parsed output at runtime
• Handle the case where the model returns nothing usable

This lesson sits in Prompting That Holds Up, part of Building AI Apps with LLMs. It assumes what came before it and leads directly into the next lesson in the module.