Worked on the bytedance/deer-flow repository to address a critical crash in the readability extraction pipeline. When the Node.js parser failed, implemented a robust fallback mechanism that switched processing to a pure-Python extraction method, ensuring continued operation without interruption. Enhanced the backend by adding detailed logging to capture and report fallback events, improving both error handling and system observability. Focused on backend development using Python, with attention to reliability and maintainability. The solution increased pipeline stability and provided clear diagnostics for future troubleshooting, demonstrating a methodical approach to testing and logging in a production environment over the course of the month.