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That sounds like v1 was "tool calls llm", while v2 is "llm calls tool"?

The fact that the tool call is via mcp and not in-process function call seems to be an implementation detail?



first sentence sounds right to me.

“Implementation detail” is doing a lot of work in the second sentence, though. There are whole startups like langchain that were trying to build out a reasonable agent framework integrated in such a way that the LLMs can drive. MCP makes that really easy — LLM training just has to happen once, against MCP spec, and I get client and LLM support for an iterative tool use scenario right in the LLM.




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