During December 2025, Goran focused on improving the robustness of datetime handling in the awslabs/mcp repository’s GetMetricData functionality. He addressed a bug where metric data retrieval could fail if datetime values were naive or lacked timezone information, implementing a timezone-aware fix in Python to ensure consistent behavior. Goran also developed a comprehensive suite of unit tests covering various datetime formats, enhancing reliability and reducing the risk of runtime errors in production. His work leveraged AWS Cloud services and backend development skills, resulting in more dependable metric data retrieval and clearer documentation for start_time usage in AI steering contexts.