You can try Siri Shortcuts today in these iOS 12-ready apps
https://techcrunch.com/2018/09/17/you-can-try-siri-shortcuts-today-in-these-ios-12-ready-apps/
With today’s release of iOS 12, Apple is also rolling out a new feature called Siri Shortcuts, which allows users to create their own voice commands to take actions in apps. For example, you could create a shortcuts for ordering your morning coffee, playing your favorite music, getting your daily schedule, and much more. In preparation for the iOS 12 launch, a number of app developers have already added support for Siri Shortcuts – sometimes even through a dedicated button in their app – in order to help nudge users towards adoption.
You can configure Siri Shortcuts in iOS Settings or create more complex voice commands using Apple’s new Shortcuts app, also out today. But these are things that will appeal more to power users – at least for the time being.