Developed and delivered partial data transfer functionality for the xtyxtyx/go-git repository, enabling the use of the --filter option during fetch and clone operations. This feature allows servers to transmit only a subset of repository objects, optimizing bandwidth usage and reducing clone times for large repositories. The implementation involved backend development in Go, with a focus on protocol implementation and robust API design. New fields and comprehensive error handling were introduced to ensure safe and reliable partial transfers. This work established a foundation for future transfer optimizations, demonstrating proficiency in backend systems, Git internals, and efficient data transfer workflows.