When /desktop cannot hand your session over to the desktop app, or needs to prompt you to download it, the screen it shows has changed. It now appears in a titled dialog called "Claude Desktop", with a line at the bottom telling you which keys to use, such as Esc to cancel. Before, it was a plain box with padding and no title.
Why
These screens now look like the other dialogs in Claude Code, and they say plainly how to back out of them.
How sure we are
One source agreesOne thing we can check says the same as this entry.
Anthropic's release notes agreeImproved /install-github-app, /desktop, the /permissions auto mode environment prompts, and the /plugin "Add marketplace?" and "Run this…