MCP's Tasks Extension Lets a Tool Call Run in the Background — If You Get the Object Shape Right Model Context Protocol has quietly grown an answer to a problem every MCP server hits eventually: what do you do when a tool call takes thirty seconds, or thirty minutes? A CI pipeline, a batch export, a step that's waiting on a human to click approve — none of that fits the request-response model MCP started with, where the client just sits on the connection until a result comes back. The Tas...