I’m pretty sure I used plan mode today and it continued when I didn’t respond quickly enough. Though now I can’t recall whether it was Claude or Codex. In either case terrible default.

Codex apparently added this too, I only noticed a few days ago: https://github.com/openai/codex/issues/28969

I'm usually at my desk, and get a notification when it stops to ask a question, so I've never accidentally had it timeout yet. Still an annoying change.