Okay, MCP is useless if the agent has full CLI access, sure. But what if it's a remote cloud agent connecting to another equally remote service. Well, now I need to install said CLI tool. What if I dont want to install a local mcp server either (which was always a stupid idea), and I want for there to be an harness around what the agent can do instead of give it a whole API?

With that said, the total number of applications that should have a MCP before an API is 0, and all that go beyond that threshold are partaking in sin and sacrilege.