understanding-stability-inference

Use this skill to explain why the Compose compiler classified a class or composable parameter as stable, runtime, unknown, or unstable. Covers the 12-phase inference algorithm, the five compiler-level stability types (Certain / Runtime / Unknown / Parameter / Combined), the generic bitmask encoding (Pair=0b11, ImmutableList=0b1), the Known Stable Constructs registry, and the runtime $stable: Int field generated by @StabilityInferred. Use when the developer asks "why is X classified as Y?", when a stability report shows a surprising runtime stable, unknown, or unstable verdict, when generics, inheritance, cycles, interfaces, or cross-module classes are involved, or when the user mentions $stable, @StabilityInferred, separate compilation, or "the compiler thinks my class is unstable but it looks fine".