Worked on stabilizing the ResourceSpec tests in the typelevel/cats-effect repository to address flaky failures caused by an external finalizer bug. Focused on improving test reliability and reducing CI noise by re-enabling a previously commented test and marking another as pending until the external issue is resolved. Utilized Scala and applied skills in concurrency, functional programming, and testing to ensure safe resource finalization during cancellation scenarios. These efforts helped prevent resource leaks and lowered production risk, with all changes validated through pre-PR checks to maintain CI stability. The work emphasized robust test coverage and careful handling of external dependencies.