Worked on the Azure/Azure-Sentinel repository to address a critical issue affecting JSON data validation and interoperability. Focused on identifying and resolving a formatting bug that caused failures against Microsoft specification checks, the work involved careful debugging and precise code changes to eliminate an extraneous comma in JSON structures. Leveraging skills in data validation and JSON formatting, the solution improved data integrity and ensured smoother integration with external systems. No new user-facing features were introduced during this period, as the primary emphasis was on code hygiene, standards compliance, and reducing the risk of downstream ingestion errors through robust, specification-driven development practices.