Status: IN
MacroCommand's application of Composite to the behavioral domain (commands as tree-structured composites with order-dependent undo semantics) validates Composite's universality beyond its structural classification: Composite can organize not just spatial part-whole hierarchies but also temporal action sequences, with MacroCommand's reverse-order Unexecute demonstrating that composite operations must respect ordering constraints absent in purely structural composites.
MacroCommand proves Composite operates in the temporal/behavioral domain, not just the structural
Depends on (SL): macrocommand-is-composite-of-commands, macrocommand-unexecute-reverses-order, composite-structural-foundation-and-behavioral-generator