Worked on performance and quality improvements for the tianocore/edk2 repository, focusing on continuous integration and test tooling. Developed a fail-fast mechanism in Python for the HostUnitTestCompilerPlugin to immediately flag invalid DSC paths, replacing previous silent skips and improving error handling during CI runs. Enhanced the HostBasedUnitTestRunner by adding automated generation and merging of Clang code coverage reports in both LCOV and XML formats, enabling more comprehensive multi-module coverage tracking. Emphasized robust unit testing and code coverage practices, resulting in earlier detection of misconfigurations and richer visibility into test results across modules, supporting maintainable and reliable development workflows.