$ ssh -i private.key dweller@secure.phabricator.com
phabricator-ssh-exec: Welcome to Phabricator.
You are logged in as phabot.
You haven't specified a command to run. This means you're requesting an interactive shell, but Phabricator does not provide an interactive shell over SSH.
Usually, you should run a command like `git clone` or `hg push` rather than connecting directly with SSH.
Supported commands are: conduit, git-receive-pack, git-upload-pack, hg, svnserve.
Connection to secure.phabricator.com closed.