A wiki for Chaos is Eternal.
Most articles on this wiki are descriptions of things, locations, individuals, factions, technologies, ideas, etc.
Once I’ve picked a subject, I start by describing it to the AI. That might look like: “Within the fiction of the narrative, Glitch Daracova is the coolest dude to have ever lived,” followed by an explanation of why that’s true. Then I ask the AI to ask me questions to help flesh out the lore. I answer those, ask for more, and repeat until I’m happy with the depth and detail.
After that, I have the AI generate a summary of everything we talked about. The idea is that I’ll use that summary as rough notes to write a proper article from, but more often than not, I just copy-pasta it in as-is, because I’m usually too drunk and lazy to do the rest. I’ll get around to rewriting it all someday. Probably.