Jenkins CLI - improve SSH Client to be equals about features how the java jar

Sorry if I have selected the incorrect components

According with Jenkins CLI page, in the Comparing SSH and CLI client section, it indicates that use java -jar is better over the commands through SSH client

Now, exists the following situation:

• Add support for SSH agents

If we have some scripts to have automated some tasks is not possible use the java jar approach because is mandatory always write the passphrase - so it is not practical - but use the SSH client would be limited to do some tasks - to be honest I don't have idea so far what are the explicit limitations of SSH Client against the java jar approach - but they exists

So if can be improved the SSH Client to be equals about features how the java jar approach, would be nice.