[merryMellody]

With an app like Scriptable, you can indeed! This one lets you write JavaScript code, and they added the feature to pass in parameters with iOS 13.1!

https://scriptable.app

[prashnts]

Pythonista 3 (currently on TestFlight) is another option. I like the custom keyboard shortcuts that it adds. It can also trigger shortcuts, I reckon.

[Ididntdothis]

This is interesting. I thought iOS is pretty locked down.