During their work on the eclipsesource/theia repository, Andrii Taran focused on improving the stability and memory management of the Status Bar Message Registry. By analyzing the lifecycle of disposables, Andrii identified and resolved a memory leak that occurred due to redundant disposals, ensuring that resources were only allocated for genuinely new entries. This fix reduced memory growth and improved UI reliability in long-running sessions. Working primarily with TypeScript, Andrii also corrected logic for new-entry detection by refining how IDs were checked in the entries map. The work demonstrated strong debugging skills and a thoughtful approach to resource management and code quality.