Worked on the ThioJoe/_tempFork_vscode repository to address reliability issues in the ChatService undo operation, focusing on eliminating race conditions that previously caused unpredictable error states. The solution involved restructuring the asynchronous control flow in TypeScript to ensure the deletion process fully completed before the undo request was removed, thereby improving the predictability and maintainability of the chat experience. This work required careful debugging of complex state transitions and a deep understanding of VSCode extension APIs. The fix was thoroughly verified through targeted testing and code review, resulting in a more robust chat undo flow and fewer user-facing support issues.