Automation for removing mirrored cards

I have set up an automation to mirror cards to my weekly planning board if they're moved into the "perform" list on any of my project boards so I can see in one board all the tasks that should be on the go across my different projects. I'd love to know if there's a way to create a board button to remove any mirrored cards from my planning board that have been marked as complete, or a way to create an automation that removes mirrored cards as soon as they're marked as complete.