Structured Outputs
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Lesson 4 of 8

Structured Outputs

Automation becomes reliable when the AI step returns predictable fields instead of free-form prose.

Active reading
Why this matters

Automation becomes reliable when the AI step returns predictable fields instead of free-form prose.

Schema

Define exact fields.

Type

String, number, boolean or array.

Required

Know which fields may never be missing.

Understand the working model

Downstream steps should not need to guess what the AI meant. If the next action expects a category, priority and summary, make those explicit output fields.

Treat model output as untrusted input. Parse it, validate it and reject or repair it before it controls another system.

Example
Return JSON: {"category":"billing|bug|other","priority":1-3,"summary":"..."}. No extra keys and no text outside JSON.
Practice

Apply the pattern above to one real task you already do. Keep the first version small enough that you can inspect every input and output.

Common mistake

Do not send raw model prose directly into database fields or API parameters.

Key takeaway

Structured outputs make AI steps testable. Define the schema first, then validate every response.

Next lesson

Validation and Guardrails

Continue to the next lesson.

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