[desolate_muffin]

I am not sure what you mean. Stateless RPCs, cache controls, client-side typing, tracing/observability, and bidirectional streaming are all things that strike me as very relevant to the modern web for all but the smallest of toy projects, let alone projects in serious engineering organizations.

> Author also seems to expect that the result from MCP tool usage will feed directly to an LLM

Isn't this exactly what MCP is for? Most tools I've come across are to feed context from other sources directly to the LLM. I believe this is the most common use-case for the protocol.