Chats are saved automatically so you can return later.
When you send a message, replies stream back from the server. If a reply fails, retrying should never “silently downgrade” your experience — you’ll either get the intended behavior or a clear error.
If you want a clean restart with the same character, start a new chat (instead of trying to “undo” a long thread).
Pro tip: Use narration formatting (*…*) to describe actions and settings.