How To Offer Actions Of My App To Other Apps, Via Smart-linkify (aka "smart Text Selection")?

Background For some time, as a user, I've noticed that on some apps I can perform common operations on partial texts, as such: This is called 'smart text selection' (video here),

Solution 1:

OK, seeing that I fail to do it, over and over, no matter what I try, I think the answer is that it's just not supported.

The reason is that Google probably collects various actions that developers request around the world, and use the list for the device. More information here. To quote from there:

Get your app discovered in more places across multiple Google and Android surfaces. Your Actions can appear in the Android launcher, Smart Text Selection, the Google Search app, the Google Assistant, and the Play Store.

Here's a list of existing special Intents actions that developers can use.

It doesn't have a special one for phone number searching, but it has some other special actions instead.

In order to request more actions to be available, developers can request it here.

I hope this will be available forever, because I don't think a lot of developers even know about this.