Worked on enhancing the reliability of directory scanning in the RooCodeInc/Roo-Code repository, focusing on robust handling of edge cases in file system operations. Addressed a critical bug where recursive directory traversal could enter infinite loops due to symbolic links, implementing logic in JavaScript and TypeScript to detect and avoid such cycles. Improved error handling by ensuring unreadable directories are silently skipped, maintaining scan continuity. Refined path deduplication to eliminate duplicate results, thereby increasing the accuracy of downstream tooling. The work leveraged Node.js and recursion techniques, directly integrating with the Add Folder workflow to reduce scan failures and improve data quality.