During May 2025, Luochuan Yewu enhanced the Canner/WrenAI repository by developing a robust JSON extraction and validation utility to address parsing issues in DeepSeek’s API responses. Using Python and leveraging skills in backend development and error handling, Luochuan implemented logic to reliably extract and validate JSON content from Markdown code blocks, ensuring that only well-formed JSON is processed downstream. This targeted fix reduced service interruptions caused by invalid responses and improved the reliability of customer-facing AI features. The work demonstrated careful attention to data integrity and traceability, aligning changes with version control best practices for maintainable backend systems.