AdkJavaInteropApi
@RequiresOptIn(message = "Java-interop API: prefer the Kotlin constructor and named arguments; opt in only if you need the Java-facing surface.", level = RequiresOptIn.Level.WARNING)
@Target(allowedTargets = [AnnotationTarget.CLASS, AnnotationTarget.FUNCTION, AnnotationTarget.PROPERTY, AnnotationTarget.CONSTRUCTOR] )
Marks an API that exists only to make ADK usable from Java, such as the fluent builders. Kotlin callers should use the primary constructor and named arguments instead; opting in acknowledges that you specifically need the Java-facing surface. Java callers are unaffected, since the opt-in requirement is enforced only by the Kotlin compiler.