You linked to one part of the spec and just wanted to ignore everything else? That's fine, but then you wouldn't be obeying the standard and wouldn't be an "MCP."
So, are you agreeing with me?
Respectfully I think I've engaged with you before and you just seem generally confused about nuanced concepts.
That's not even true. It defines the lifecycle of tool calling.
JSON-RPC with some descriptors would have been fine and amazing.