templateFanout

how many instances a ChildReference.Template counts as when the cost of a surface is being estimated from its components alone. Counting a template as one is unsound: nested templates and templates reached along many structural paths multiply, and a count that summed them would report a surface as cheap and then draw the product. The default is the smallest value that still multiplies -- how many items a template actually yields is the agent's data model talking rather than its component graph, and that is bounded where it arises, when the reference is expanded.