Yes, that works well – I can even run ssh-add from the KDE run command, and it will use a KDE KWallet-able interface to ask for the passphrase and remember it.

Now is it so difficult to run that when I first try to access ssh or sftp, like GNOME does? Currently if I don’t do ssh-add, If I try to access an ssh terminal or an sftp file share, I get prompted for my passphrase every single time.