What's the most annoying thing about using more than one AI coding tool?

I bounce between Claude Code, Cursor, Zed and a couple others depending on the project. The tool-switching itself doesn't bother me, it's losing track of stuff, like solving something in one and then not being able to find it again once I'm back in another.

Curious what actually annoys people who do this daily. Context loss? Different keybindings? Something else entirely?