Second, it looks like it actually needs a fair bit of work before it
will really be ready. In addition to the problem you point out,
there's also another issue with forwarding. The normal case is that
[...]. Now, who is supposed to insert the forwarding notice? The
ssh server? The ssh client? Both? This does not appear to be
well-specified.
| 1.2. Forwarding Notices
|
| If the agent connection is forwarded through intermediate hosts (using
| the SSH Connection Protocol agent forwarding feature (described in
| Section ``Agent Forwarding With Secure Shell'' of this document), or
| some other means), each intermediate node (Secure Shell client) should
| insert the following message into the agent channel before forwarding
| any other messages.
Note that "(Secure Shell client)" parenthesis.