Why it matters

Reliable structured output enables agents. Understanding shapes design.

Advertisement

The architecture

Schema-first: JSON Schema.

Tool-first: define tools.

Retry-first: on parse fail.

Structured output patternsSchemadeclarativeToolsfunction callingRetry loopself-correctingCombine: schema for shape + retry for reliability + tools for actions
Patterns.
Advertisement

How it works end to end

Schema: JSON Schema in provider API.

Tool: function calling.

Retry: parse fail → prompt with error → retry.