Build high-performance declarative UI with Jetpack Compose state hoisting and recomposition optimization. Use when writing @Composable functions, Screen files, LazyColumn, state hoisting, LaunchedEffect, or diagnosing excessive recomposition. (triggers: **/*Screen.kt, **/*Composable*.kt, **/*Content.kt, @Composable, Modifier, Column, Row, LazyColumn, setContent, recompose, remember, derivedStateOf, LaunchedEffect)