Worked on the v2fly/v2ray-core repository to enhance the reliability and correctness of proxy connection handling, focusing on SOCKS proxy TCP status reporting. Addressed an issue where the server previously signaled a successful connection before upstream validation by deferring the OK response until Dispatch() successfully created an upstream Link. This approach ensured that the reported connection state accurately reflected actual readiness, improving operational stability and client trust. The UDP proxy path was intentionally left unchanged to avoid regressions. The work was implemented using Go and protobuf, leveraging skills in network programming and protocol implementation to deliver a targeted, robust bug fix.