Status: IN
Command's fully engineered compositional status (evolutionary arc from callback to dual-role participant, with engineering triad for operational reliability) is the critical enabler of the temporally-persistent event architecture: Observer handles spatial event distribution, but only Command's engineering discipline (hysteresis prevention, meaningless-undo filtering, state-variant copy management) makes the temporal persistence dimension reliable — demonstrating that event architecture depth requires both architectural capability and pattern-level engineering.
Command's engineering triad is what makes temporal persistence reliable, not just possible
Depends on (SL): command-fully-engineered-compositional-pattern, event-architecture-temporally-persistent