Worked on enhancing the Terminal User Interface within the sst/opencode repository, focusing on streamlining navigation for multi-session workflows. Developed and delivered a feature that enables users to exit from child sessions, directly addressing navigation friction and improving the overall user experience when handling nested terminal sessions. The implementation relied on React and TypeScript, demonstrating proficiency in front end development and TUI design. Collaborated closely with another contributor, adhering to conventional commit standards and issue-driven development. The work improved TUI stability and usability, ensuring that users can more intuitively manage session hierarchies without confusion or workflow interruptions.