I have been using 1password for awhile and it's amazing. There is one feature though I wish I had. That is automatically going out and changing my passwords for me. Apologies if I am stepping out of bounds by mentioning a competitor... but LastPass does this and advertises it here https://lastpass.com/features/ .
It would be nice if the major ones were tackled like Google, iCloud, Github, etc. But then it would be even better to be able to define how to change custom site passwords. One idea may be to have a "record me change my password" button. I click that, and 1password starts watching the requests on the site I am currently on and records that for later use.
But aside from a magic button, I'm sure if I had to write a python/bash script that's far more than sufficient. Or have the site owners submit some form defining their password reset procedure that can be automatically pulled in. I currently have a recurring calendar appointment where I go through and change all my passwords. So anything improving that is a step in the right direction.
1Password Version: Not Provided
Extension Version: Not Provided
OS Version: Not Provided
Sync Type: Not Provided