Marked has a basic AppleScript dictionary, and allows you to get the document filename from multiple windows, as well as open files from scripts. This allows some workflow integration if you know a little bit of AppleScript. You can have any application which can trigger an AppleScript open a document in Marked, or have it retrieve a document from Marked for editing or other actions.

Executing AppleScript in a Mac app on macOS Mojave and dealing with AppleEvent sandboxing

Calling from Python As of 10.10, AppleScript can use Cocoa frameworks in any Script Editor-based script. This makes it easy for Python and other languages that have Objective-C bridges to call AppleScript directly, without having to package everything as an Xcode app. Stick one or more compiled .scpt files containing AppleScript-ObjC "classes" into a folder, e.g.: use framework "Foundation" use scripting additions script MyASClass property parent : class "NSObject" -- on test() activate display dialog "Hello from AppleScript!" end test end script then just use it from Python like this: from Foundation import NSBundle, NSClassFromString import AppleScriptObjC NSBundle.alloc().initWithPath_(FOLDERPATH).loadAppleScriptObjectiveCScripts() MyASClass = NSClassFromString(u"MyASClass") # get the ASOC class... MyASClass.alloc().init().test() # ...then instantiate and call it