During December 2025, Isfan Zhang enhanced the modelcontextprotocol/go-sdk repository by delivering cross-platform JSON line-ending support in the MCP Client. He implemented decoding logic in Go to handle both Unix LF and Windows CRLF endings, addressing parsing errors that previously affected Windows-based pipelines. This work involved refining the stdio JSON decoder to ensure reliable processing of JSON streams regardless of platform, thereby improving interoperability for teams working across different environments. By focusing on backend development and robust JSON streaming, Isfan’s contribution reduced integration friction, supported smoother CI workflows, and laid the foundation for future platform-agnostic streaming features in the SDK.