Claude Structured Outputs: Guaranteed Schema-Valid JSON (and 3 Exceptions)

How do you make Claude return valid JSON that matches your schema every time, without brittle prompt hacks? Structured outputs with strict mode is now the answer, but there are three exceptions that will still break your pipeline if you skip them. Chapters 0:00 Intro 0:32 Three Generations 1:32 Structured Outputs API 2:22 The tool_choice 400 3:16 Where Guarantees End 4:20 Unsupported Schema Features 5:07 Valid Is Not Correct Sources (official docs) https://platform.claude.com/docs/en/b... https://platform.claude.com/docs/en/a... Support the channel: https://buymeacoffee.com/techwithdarin #FieldGuide