[[!comment format=mdwn
 username="joey"
 subject="""comment 9"""
 date="2021-12-16T19:21:31Z"
 content="""
Thank you. So standard input is not getting connected through the ssh to
git-annex-shell, it appears.

Could you try the same command with without the -T option, and see if it
allows you to interact with it? Eg, after it says "AUTH-SUCCESS", see if
you can enter "test" and if it replies to that.
"""]]
