Extending Android's Voice Search app

Is it possible to extend the Voice Search app? I know I can add a button in my own app to launch the voice recognition dialog, but I was wondering if I could extend the voice search app that launches automatically when you long press the physical "search" key.

send text to [contact] [message]
listen to [artist/song/album]
call [business]
call [contact]
send email to [contact] [message]
go to [website]
note to self [note]
navigate to [location/business name]
directions to [location/business name]
map of [location]

I'd basically like to add my own action to the above list.

Is this possible or will I have to create my own?

How do I fix Voice Search on Android?

Make sure it's plugged in and powered on. Make sure it's connected to the internet and on the same Wi-Fi network as your mobile device. Make sure the microphone is turned on: Speakers (except Google Home), Smart Displays, or Smart Clocks: On the back of your device, make sure the switch for the microphone is turned on.

In a word, no. The app doesn't have the extension points you are looking for. You would have to write your own app entirely, which is something that others have done.