Status: OUT
The recursive subsystem's status as a comprehensive composition-paradigm demonstration — every infrastructure layer achieving its contribution through composition rather than inheritance — is operationally safe only when Composite's inability to restrict child types via the type system is managed through runtime validation, documentation, or domain conventions, since the composition paradigm's flexibility inherently trades away the compile-time child-type constraints that inheritance-based designs would provide.
Composition paradigm's flexibility in recursive structures comes with an unavoidable type-safety gap requiring runtime mitigation
Depends on (SL): recursive-subsystem-exemplifies-composition-paradigm