I don't understand what you mean. > It (the main benefit?) is the LLM itself, if it knows how to wield tools. LLMs and their ability to use tools are not a be

I don't understand what you mean. > It (the main benefit?) is the LLM itself, if it knows how to wield tools. LLMs and their ability to use tools are not a benefit or feature that arose from MCP. There has been tool usage/support with various protocols and conventions way before MCP. MCP doesn't have any novel aspects that are making it successful. It's relatively simple and easy to understand (for humans), and luck was on Anthropic's side. So people were able to quickly write many kinds of MCP servers and it exploded in popularity. Interoperability and interconnecting tools, APIs, and models across providers are the main benefits of MCP, driven by its wide-scale adoption.