Why AppleScript as a matter of interest — Scrivener doesn’t have AppleScript support, as far as I know, so you’re pushing against the grain, when there are tools which are designed to do this.
Have a look at Keyboard Maestro, it’s made for controlling programs in this way. A few years ago I wrote some macros in it which did much the same as you’re looking to do. Here’s the start of one which prompts for the name of a character and then creates a new character sheet in the correct folder. It would be fairly simple to adapt to do what I think you want:
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It was called from a palette of such actions — In Scrivener, I pressed a shortcut and was given this palette of various documents which could be created automatically (chosen by a key):
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Keyboard Maestro is brilliant for this sort of thing — it’s one of the first programs I put on any Mac. If you’ve not come across it before, it’s well worth checking out the free trial. It does a lot more than just what I’ve shown here (it also interacts with AppleScript…)
Your list of actions is trivial to program in Keyboard Maestro: the action below took me about 90nseconds to put together just now (you essentially just add the menu items to a list and then KM runs them on demand), so you can see how powerful it is.
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(BTW, you don’t actually need your first two actions: Navigate > Reveal Draft Folder does the same thing in one move — you can of course give it a shortcut if you want.)
The Activate Scrivener action which starts the macro means that if Scrivener isn’t the front application, it will bring it to the front, or start it up if it’s shut down — so this macro can be run globally, if you want. You could also chain other actions before or after it, of course. (E.g highlight text in Safari to populate your note.).