Worked on the pydantic-ai repository to enhance the reliability of timestamp handling when integrating with the OpenRouter API. Addressed a scenario where the API could return a None value for the created timestamp by implementing a fallback mechanism that assigns the current UTC time, ensuring downstream processes always receive a valid timestamp. This solution, developed using Python, focused on robust error handling and included automated tests to validate the new behavior and prevent regressions. The work improved data integrity and consistency for timestamp-based analytics, demonstrating a careful approach to API integration, testing, and maintaining reliable data pipelines within the project.