General question: I've found indexing to work great on allowing a chatbot to find the right information, but there's a flaw in that the chatbot lacks meta information. I.e. I pass it an index to a catalog with 150 items, then I ask it how many items there are, or how many items are blue, and it fails that question. Using Pandas dataframe agent did work, but it was very slow. My best workaround so far has been to pass these meta stats in a starting prompt, but that doesn't scale generally - has anyone found a good solution?