During May 2025, Jiafu Zhang focused on enhancing the stability of RDMA transport in the fzyzcjy/Mooncake repository, addressing a critical issue with endpoint deletion that previously risked premature deconstruction before completion queue generation. By refining the endpoint lifecycle logic in C++ and Python, Jiafu ensured endpoint status integrity during deletion, which preserved necessary state for ongoing operations. He also expanded automated test coverage to validate multi-card concurrent sender and receiver scenarios, improving reliability for distributed systems under high-throughput workloads. This work demonstrated depth in network programming and system integration, resulting in safer dynamic RDMA usage and reduced runtime disruption risks.