[SOLVED] Is it possible to write custom .shortcut file for iOS Shortcuts application?

Is it possible to write custom .shortcut file for iOS Shortcuts application?

Why?

I have REST API service where user can place marks on any day of the year. There is Endpoint (URL) that allows user to place mark on current day, for example POST request to /api/mark/1

So, I want to create custom .shortcut file for users that has command to visit that particular endpoint (including user access_token)

Question

So, there is app Shortcuts for iPhone. There is option to export shortcut as file of .shortcut format.

I am curious is there any way I can write my own .shortcut files using text editor? (VSCode for example)

I tried googling about this topic, but, unfortunately, didn't find any answer

Solution

The latest version of .shortcut files are binary plist files signed by Apple (try exporting a file from the shortcuts app and looking at it), so it appears the answer is, generally, no.