Compose screen architecture (Android and KMP, adapts to the project)

Build and audit the screen layer — navigation graph → Route → Screen → UI components, with the ViewModel as the state owner — on Android Jetpack Compose and on Compose Multiplatform. The skill imposes ownership and lifetime boundaries, never tools: the DI mechanism, the navigation library, the intent style, and the scaffold and preview rules are read from the project, not chosen here.

This file is a router. You must open and follow the reference each step links — never work from memory of it.