{"id":"observer-mediator-complete-communication","text":"Observer and Mediator together provide complete many-to-many communication coverage — Observer distributing for reusability, Mediator centralizing for simplicity — spanning all interaction topologies when both patterns' liabilities are resolved.","truth_value":"OUT","source":"","source_url":"","source_hash":"","justifications":[{"type":"SL","antecedents":["observer-mediator-distribution-centralization-tradeoff","decoupling-topology-composition-based"],"outlist":["gof-observer-unexpected-updates-liability","gof-mediator-centralizes-control-tradeoff"],"label":"Communication completeness requires resolving both Observer's cascading update problem and Mediator's monolith tendency — either liability undermines the claim"}],"dependents":[],"metadata":{"source_type":"derived"},"created_at":"2026-06-17T18:00:51+00:00","updated_at":"2026-06-17T18:00:51+00:00","reviewed_at":"","verified_at":"","retracted_at":"","explanation":{"steps":[{"node":"observer-mediator-complete-communication","truth_value":"OUT","reason":"SL justification invalid","failed_antecedents":[],"label":"Communication completeness requires resolving both Observer's cascading update problem and Mediator's monolith tendency — either liability undermines the claim","violated_outlist":["gof-observer-unexpected-updates-liability","gof-mediator-centralizes-control-tradeoff"]}]}}