AI makes things up: does this fix that?

Nothing takes it to zero. Every model invents things, Claude included, and it sounds exactly as confident when it does.

Hallucination is just creativity. When the model doesn't have the fact, it fills the gap with something that fits. Give it the fact and there's less left to invent.

When you manage context correctly, you can pretty much eliminate hallucinations. I really don't get hallucinations anymore. That holds when it's reading my files. It stops holding the moment I use it like a Google search and ask it about the world from memory.

Most of what's in the Repo(sitory) is that work already done, so the facts are sitting in files before the question gets asked. The checks that read what gets written before it ships are in there too, so a wrong claim gets caught by something other than your own attention.