Yeah, 'RAG' is quite literal tool use, where the tool is a vector search engine more or less. What was described as 'RAG' a year ago now is a 'knowledge search

Yeah, 'RAG' is quite literal tool use, where the tool is a vector search engine more or less. What was described as 'RAG' a year ago now is a 'knowledge search in vector db MCP', with the actual tool and mechanism of knowledge retrieval being the exact same.