During December 2025, Bartosz Szymanowski enhanced the Tgov1 Governor Model within the ORNL/GridKit repository by expanding its test coverage and introducing residual evaluation logic. He focused on improving the maintainability and structure of unit tests, enabling faster validation cycles and more reliable detection of faults in governor behavior. Working primarily in C++, Bartosz applied algorithm design and unit testing skills to deliver a more robust validation framework. His contributions addressed the need for higher confidence in model accuracy, and the changes were tracked for traceability and collaboration. The work demonstrated thoughtful engineering depth in both test logic and structure.