Worked on enhancing navigation within the sst/opencode repository by implementing a back button feature for Subagent Sessions. This addition allowed users to return seamlessly to parent sessions, addressing navigation friction in nested session workflows. The solution was delivered as a focused, low-risk change in a single commit, making it easy to review and revert if necessary. Leveraging React and TypeScript, the developer concentrated on front end development to improve user experience. Documentation and notes were prepared to support future extensions of subagent session navigation, reflecting a methodical approach to maintainability and incremental improvement within the project’s codebase.