Worked on the sst/opencode repository to enhance the robustness of the SessionHeader component in a React and TypeScript front end. Addressed a bug where the memoization function for current session handling could encounter undefined values when the options array was empty. Introduced a guard clause that returns a default object with id, label, and icon, preventing runtime errors and undefined access. This change reduced the risk of crashes and improved the user experience, particularly in edge cases involving empty configurations. The update was delivered without performance regressions, contributing to overall code health and maintainability within the application’s front end.