Visualizing Recomposition Cascades — static blast radius and live heatmap inside the IDE

Passive gutter icons answer "is this composable skippable" (covered by ../using-stability-analyzer-ide-plugin/SKILL.md). The active investigation tools answer two harder questions. The Cascade visualizer walks the static call graph from a root @Composable and shows what else might recompose if the root recomposes. The Live Heatmap subscribes to the device's logcat and renders the actual recomposition counts as block inlays above each instrumented composable in the editor. Together they close the loop between static analysis and runtime evidence.

Both features live inside the same IntelliJ plugin and surface through the right-anchored Compose Stability Analyzer tool window, which has three tabs: Explorer, Cascade, and Heatmap.

When to use this skill