During November 2025, Sky Blue focused on backend development for the modelcontextprotocol/go-sdk repository, addressing a critical stability issue in SSE streaming within the MCP middleware. By refactoring the logging mechanism from the HTTP layer to the MCP protocol layer, Sky enabled proper response headers and uninterrupted streaming, while maintaining detailed protocol-level logs. This approach leveraged Go and middleware design principles to enhance both observability and maintainability. The solution established a scalable middleware pattern using mcp.Middleware and AddReceivingMiddleware, resulting in more reliable SSE streams and a cleaner, extensible logging architecture that improved developer velocity and debugging capabilities across the stack.