During July 2025, work centered on enhancing data visibility within the facebookincubator/nimble repository by extending VeloxWriter’s C2H flow statistics to include the uncompressed file size metric. This addition enables more accurate analytics, cost modeling, and performance tuning by providing deeper insight into the characteristics of written data. The implementation focused on clean, low-risk instrumentation changes in C++, maintaining API stability and ensuring seamless integration with existing data paths. Emphasizing data engineering and performance optimization, the update was delivered with clear commit messaging and without introducing major bugs, reflecting a careful, targeted approach to improving system observability and maintainability.