Worked on the XTLS/Xray-core repository to enhance DNS protocol reliability by addressing a critical parsing issue affecting name server interactions over both QUIC and TCP. Focused on correcting the DNS response length data type from int16 to uint16, this change ensured accurate parsing of DNS responses and reduced the risk of misparsing that could disrupt downstream name resolution and service discovery. The solution involved validating cross-transport parsing correctness and collaborating closely with co-authors to maintain clear commit history. Leveraged Go and network programming expertise to deliver a targeted bug fix that improved the stability and correctness of DNS workflows.