Can't figure out how to make Hazel action "stop."

I'm trying to figure out how to apply a Hazel action to a folder that gets created once a week and then deleted later. What I need to do is run an Automator workflow to rename the contents of the folder to today's date and then convert one of those copies to a JPG.
The Hazel rule looks like this:
If _Date Created_ is _Today_
then
Run Automator Workflow _convert to JPG_
I could do this easily with Permute, but I don't want to open another app, and I want it to happen behind the scenes.
So I guess I want to know how I make that action run once and then not again so that I don't end up with an unending loop for converted JPGs!
Thanks for anyone's help.
The Hazel rule looks like this:
If _Date Created_ is _Today_
then
Run Automator Workflow _convert to JPG_
I could do this easily with Permute, but I don't want to open another app, and I want it to happen behind the scenes.
So I guess I want to know how I make that action run once and then not again so that I don't end up with an unending loop for converted JPGs!
Thanks for anyone's help.