Concern about stop & output shortcut

Hi everyone!

I’m really new to Apple shortcuts, but installed an app called ”dumbify”, that lets you turn your home screen into a ”dumb phone” via shortcuts. Every time I open an app with it for the first time, my Iphone prompts a privacy/security question whether the shortcut can ”output 1 app”. It also adds a random stop & output command to the end of the original shortcut.

Could this be harmful/malware or anything I should deny permission/beware of? Thx in advance!