{"id":"GEN-016","domain":"generation","priority":82,"hard":false,"logic":"all","when":[{"path":"generated.physics_score","op":"lt","value":0.75}],"then":[{"op":"add_flag","value":"PHYSICS_FAILURE"},{"op":"propose","value":"split_action_or_use_other_method"}],"rationale":"Visible cause, contact, and inertia support temporal credibility.","tags":["motion"],"category":"Generation"}