What are the most effective techniques for structured output generation without breaking JSON syntax?

### Technical Answer 1. **Structured Outputs**: Use native API constrained decoding (Grammar-based sampling) which guarantees 100% syntactically valid JSON matching your JSON Schema. 2. **XML Tag Parsing**: For models without constrained decoding, instruct the model to wrap content in `<json>` tags and parse using robust string splitters. 3. **Few-Shot Examples**: Always include 2 exact JSON input-output pairs in the prompt. *Note: This question represents expanded technical inquiry iteration #2 within the Prompt Engineering & LLMs topic area.*

### Technical Answer 1. **Structured Outputs**: Use native API constrained decoding (Grammar-based sampling) which guarantees 100% syntactically valid JSON matching your JSON Schema. 2. **XML Tag Parsing**: For models without constrained decoding, instruct the model to wrap content in `<json>` tags and parse using robust string splitters. 3. **Few-Shot Examples**: Always include 2 exact JSON input-output pairs in the prompt. *Note: This question represents expanded technical inquiry iteration #2 within the Prompt Engineering & LLMs topic area.*