Old Protocols, New Pipes

I built an MCP server this week. Not a toy exactly, not even a proof of concept; I wanted a working tool that lets a Copilot agent publish blog posts to a twenty-year-old blogging engine: thirteen tools, an XML-RPC client, multi-blog profile support, credential persistence, and auto-discovery of blog APIs. I built the whole thing in a single session with GitHub Copilot, describing what I wanted…