Worked on the Kotlin/kotlinx.coroutines repository to enhance error handling by updating TimeoutCancellationException messages to include the CoroutineName, providing clearer context for debugging asynchronous operations. This feature improved the traceability of timeout errors, allowing developers to more quickly identify which coroutine was affected during failures. The approach focused on maintaining code quality and ensuring that error messages delivered actionable information for root-cause analysis. Leveraging skills in Kotlin, concurrency, and unit testing, the developer contributed to the maintainability and reliability of the codebase. The work addressed a specific need for better debugging support in concurrent Kotlin applications without introducing regressions or instability.