During December 2024, Mooncake focused on enhancing the reliability of RDMA operations in the fzyzcjy/Mooncake repository. He addressed a bug in the RDMA device selection logic that previously failed to respect prioritized NIC ID lists during operation retries. By refining the retry mechanism in C++ and leveraging his expertise in network programming and RDMA, Mooncake ensured that device selection now consistently follows intended prioritization, especially when retry counts are involved. This targeted fix improved the stability and predictability of RDMA paths, reduced flaky behavior, and contributed to clearer retry semantics, while maintaining thorough documentation to support future maintenance and onboarding.