Open Storage Management programatically In macOS Sierra there’s a new Storage Management option. One way to get to it is via /Applications/Utilities/System Information.app (then with the app open) Window → Storage Management.

I’d like to accomplish all that programatically, including closing the System Information.app window.

If there’s a solution it’ll likely involve AppleScript or JXA, but I’m not picky on the method.
Inadvertently found the solution. Storage Management exists as a standalone app after all, but not where one would expect. Seeing as the question has upvotes, meaning other people might be looking for it as well, I’m answering it instead of deleting it. You can find the app in:

/System/Library/CoreServices/Applications/Storage Management.app