Worked on the semaphoreio/semaphore repository to enhance frontend reliability by implementing cache invalidation for unmergeable pull requests. Focused on ensuring the UI accurately reflected pull request mergeability status, the work introduced event-driven prompts that guide users to resolve conflicts as they arise. Leveraging Elixir for backend development, the approach combined API integration and cache management to reduce stale UI states and streamline user workflows. By triggering cache invalidation on unmergeable transitions and handling pr_unmergeable_event events, the changes improved user experience and performance. The feature-driven effort emphasized maintaining UI consistency without addressing bug fixes during the development period.