Baris Kurt developed batch support for the call_aws tool in the awslabs/mcp repository, enabling parallel execution of AWS CLI commands with region expansion and robust error handling. He approached the problem by leveraging the AWS SDK and Python, focusing on improving throughput for multi-command workflows while ensuring reliability through comprehensive unit testing. Baris also addressed test stability, enhancing the reliability of batch workflows and supporting a smoother rollout. His work included close collaboration during code review, incorporating feedback to improve code quality. Over the month, he delivered one feature with no reported bugs, demonstrating depth in Python development and testing.