Hey there @mwoodbri thanks for following up - My bad, I just tested again (and did some more research internally) and found that requested_scopes will return undefined which is expected behavior - Long story short, this is expected behavior because there technically are no requested scopes on the refresh token exchange. That being said, we are working to expose a event.refreshToken object which will contain this info. I am unfortunately unable to provide an ETA at this moment.
A potential workaround is to call this endpoint of the Management API, which will return the refresh tokens scope and be the same information contained in the eventual event.refreshToken object. To call this endpoint, you will need to configure your action to use the node management client. The following should be helpful: