I was using a local Codex project as a personal knowledge base. So I would dump in documents, basic medical docs (like blood labs), and other things and have it file them.

It’s great at filing!

But it’s terrible at retrieval because it would refuse to show me documents or information with personal details - which was everything in the project.

It would say, yes, I know this is your information, sitting on your hard drive, but I still can’t show it to you.