Great tip and great writeup, @BenGraneyGreen!
This same approach is valuable in non-script contexts as well, for other Asana features not available in bundles.
For example, the same solution would help when using rules with external actions (send email or chat) which couldn’t exist in bundles. And also to implement rules across multiple users’ My Tasks, since bundles can’t be added to My Tasks.
Thanks,
Larry