What
A remote session holds back the prompt you passed on the command line until sync is ready. If that send then fails, you now get a warning saying it "wasn't delivered ... please send it again", and a separate wording when the send could not be confirmed to have reached the cloud session, rather than the prompt disappearing quietly.
Details
- A related callback warns once per undelivered response instead of repeating.
- Permission modes seeded onto the session when attaching are reported through telemetry
tengu_remote_permission_mode_adopted.
Evidence
It wasn't delivered to the cloud session; please send it again.
Strings lifted out of the shipped bundle, so the claim above can be checked against them.