You are building a structured data extraction system using Claude. The system extracts information from…

Question

You are building a structured data extraction system using Claude. The system extracts information from unstructured documents, validates the output using JavaScript Object Notation (JSON) schemas, and maintains high accuracy. It must handle edge cases gracefully and integrate with downstream systems.

Your system must extract event details from calendar invitations and output JSON that strictly conforms to a schema with fields for title, date, time, location, and attendees. Downstream systems reject any malformed or non-conformant JSON.

What approach provides the most reliable schema compliance?

Accepted Answer

B. Define a tool with your target schema as input parameters and have Claude call it with the extracted data.

Answer

A. Include detailed JSON formatting instructions and the target schema in your prompt, then parse Claude's text response as JSON.

Answer

C. Append instructions like "Output only valid JSON matching the schema exactly" and implement retry logic to re-prompt when JSON parsing fails.

Answer

D. Pre-fill Claude's response with an opening brace to force JSON output, then complete and parse the response.

Question 107