Hey Chris,
This is definitely a scenario we want to support via Speckle. Our long term vision on this would look a bit like GitHub Actions, see this thread by @messismore : 
Speckle Actions! Suggestions?
Currently, I think what you describe could be, at least in part, possible via Rhino Compute, but I’m not too experienced with it, so I’ll ping some folks who might be able to help you some more: @Stam who created the Synchronous Reciever for use in RC and @vwb who I believe fixed the issue you have with the ActiveDoc (maybe you have an update pending?).