Deleting or importing several Claude Code sessions fired one ssh
process per item, all in the same tick. A large enough batch opened
more connections than the remote sshd's default MaxStartups tolerates
before it starts randomly refusing, so some rows failed with
"Connection closed by ... port 2222" -- not a real delete failure,
just too many handshakes landing at once.
Co-Authored-By: Claude Sonnet 5 <noreply@anthropic.com>