Worked on the JoyOfCodingPDX/KatasSummer2025 repository, delivering a Diamond Pattern Printing feature by implementing a Diamond class with a print method and supporting line-building utilities in Core Java. Focused on rendering reliability, the work included targeted unit tests to ensure correct centered output, including specific cases such as input 'B'. Repository governance was enhanced through write-access verification and author metadata updates. In the following month, attention shifted to maintaining code quality by cleaning up the Diamond test suite, removing redundant tests to improve CI reliability. All changes were made using Java and unit testing practices, emphasizing maintainability and collaboration readiness.