Status: IN
Command achieves the status of a fully engineered compositional pattern: its evolution from procedural callback replacement through the intelligence spectrum to compositional participant with dual role (decoupling and state capture) provides the architectural capability, while its engineering triad (hysteresis prevention via Memento, meaningless-undo filtering via Reversible, state-variant copy management) provides the operational reliability — architecture and engineering discipline in a single pattern.
Command is unique in having both a complete evolutionary arc and a complete engineering discipline
Depends on (SL): command-callback-to-compositional-participant, command-undo-engineering-triad