Dr. Violet Howard builds a RAG agent without code using n8n, Supabase, and GPT-4.1 mini. She uploads a golf rules PDF, vectorizes it, and asks the agent a question that it answers by retrieving exact text from the document.
Watch me build a RAG AI agent in minutes. So like I told you guys, what we're going to be putting in our vector database today is this PDF that's in my Google Drive called the Rules of Golf Simplified, and it is a 22-page PDF. So in order for us to access that PDF, we are going to have to connect to Google Drive and NNN. So what I'm going to do real quick is hit tab. I'm going to type in Google Drive. I misspelled Google a little bit. Click on that, and then I'm going to open up the actions, which is going to be download file. All we're gonna do is look through our list of different documents in our account, and now I'm going to be able to pull in this PDF. I'm gonna click on this plus button after the Google Drive. So I'm gonna click on Supabase Vector Store. I'm going to click on Add Documents to Vector Store. And now that we've connected here, we just have to do two more things. We have to chunk and then embed so that we can actually vectorize. So what I'm gonna do is hit tab and I'm going to type in AI agent and grab that agent right there. Now we need to connect a brain to our AI agent. So if I click on the plus under chat model, I'm going to scroll down here and grab OpenAI chat model. And now we just need to choose a model to use. I'm going to stick with GPT-4.1 mini. And the final step is just to give it a tool so that it can actually look in this vector database. So I'm just going to say, what am I allowed to do for practice? Let's see if the agent understands that we're talking about golf and that it needs to use the Supabase vector store, which it did. And now it's going to take that information and return an answer to us. And then we'll basically validate if it is correct or not. You cannot practice on the course the day of stroke play tournament or before playoff on the course. And also during the round, you cannot hit a practice shot while playing a hole or between holes. If we go over to the PDF, you can see that's pretty much exactly word for word what we were looking for. If you wanna watch the full breakdown, click on that play button right here, and I'll see you guys over there.
