How to provide some action to Siri shortcuts app?

问题

From that question How to customise SiriKit intent extension for shortcuts app to ask allow access?

I found out that some actions (for well-known apps) are provided by shortcuts app itself, so how can I provide for shortcuts app my own actions to my web service? How can I publish some web service action to my app for shortcuts library actions?

来源：https://stackoverflow.com/questions/58054290/how-to-provide-some-action-to-siri-shortcuts-app