During their work on the MaCh3 and MaCh3Tutorial repositories, Tom Dealtry developed features to enhance normalization parameter observability and improve the robustness of kinematic cut handling, using C++ and YAML for both core logic and configuration. Tom introduced a conditional display for normalization tables, standardized kinematic cut syntax, and enabled vectorized uncertainty analysis, supporting more reliable physics diagnostics. They also focused on error handling by replacing generic errors with custom exceptions, improving debugging. In addition, Tom authored and refined documentation, establishing formal contribution guidelines and a versioning policy, which streamlined onboarding and release processes for the MaCh3 project.