{"id":"GEN-013","domain":"generation","priority":90,"hard":true,"logic":"all","when":[{"path":"generated.object_permanence_score","op":"lt","value":0.8}],"then":[{"op":"add_flag","value":"OBJECT_PERMANENCE_FAILURE"},{"op":"propose","value":"regenerate_or_repair"}],"rationale":"Object disappearance or duplication breaks world coherence.","tags":["artifact"],"category":"Generation"}