In February 2025, Alex Decker enhanced the gradle-profiler repository by extending the CopyFileMutator component to support directory copying, addressing a limitation where only individual files could previously be handled. Using Groovy and Java, Alex implemented logic to detect when the source was a directory and leveraged FileUtils.copyDirectory for recursive copying, while retaining Files.copy for single files. This update improved the tool’s flexibility in file system operations, particularly for build tooling scenarios. To ensure reliability, Alex added regression tests that verified correct directory copying behavior, demonstrating a methodical approach to testing and code quality within the context of build automation workflows.