During December 2024, this developer focused on enhancing data integrity within the VATSIM-UK/UK-Sector-File repository by addressing a bug in the standing sector agreements, specifically between the TC NE and TC East configurations. Their work involved meticulous configuration management, where they updated and cleaned agreement text files, removing outdated entries to restore accuracy and consistency across multiple files. Utilizing skills in configuration management and working primarily with text-based data, they improved cross-sector configuration reliability for air traffic controllers. This targeted fix reduced the risk of misconfiguration and operational delays, ensuring more accurate routing and dependable sector agreement data for users.