We covered what MCP is. Now let’s trace what actually happens during a real interaction — step by step. Key idea: MCP doesn’t decide what action to take — the model decides. MCP defines how requests are structured, transmitted, and safely returned. If you’re anything like me, knowing what something is only gets you halfway. You want to know how it works. What actually happens when Claude asks GitHub for your open issues? What messages get sent? What’s happening behind the scenes? The Two Layers of MCP MCP is built in two layers. The Transport Layer is how messages physically… Read more