{"id":"composition-centric-design-paradigm","text":"The GoF catalog converges on a composition-centric paradigm: structural flexibility relies on abstract coupling via composition, behavioral decoupling uses composition-based object patterns across all four sender-receiver topologies, and extension mechanisms from skin (Decorator) through guts (Strategy) favor composition over inheritance — establishing composition as the single unifying principle of the catalog.","truth_value":"OUT","source":"","source_url":"","source_hash":"","justifications":[{"type":"SL","antecedents":["abstract-coupling-composition-dual-foundation","decoupling-topology-composition-based","extension-spectrum-converges-on-composition"],"outlist":[],"label":"Three independent depth-2 conclusions about flexibility, decoupling, and extension all converge on the same mechanism"}],"dependents":["composition-paradigm-requires-full-prerequisite-stack","comprehensive-composition-at-all-scales","expert-design-integrates-paradigm-and-judgment","solid-grounds-composition-paradigm","variation-and-composition-unified-catalog"],"metadata":{"source_type":"derived","review_result":"pass"},"created_at":"2026-06-17T17:57:39+00:00","updated_at":"2026-06-17T20:39:50+00:00","reviewed_at":"2026-06-17T20:39:50+00:00","verified_at":"","retracted_at":"","explanation":{"steps":[{"node":"composition-centric-design-paradigm","truth_value":"OUT","reason":"SL justification invalid","failed_antecedents":["abstract-coupling-composition-dual-foundation"],"label":"Three independent depth-2 conclusions about flexibility, decoupling, and extension all converge on the same mechanism"}]}}