I see that the second requirement is "Stored in the Private or Personal vault of any of your 1Password accounts". If the upgrade to use the keys from a private vault is going to take a while you should just put "Personal vault" while this feature is ready.
I mention this because I spent 2 days fighting with the ssh-agent and other crazy settings. It was as simple as moving the keys to the personal vault.
I have a work vault, a shared one and a private one that I use as my personal vault so I don't use the "personal" vault at all.