{"id":"STR-001","domain":"story","priority":90,"hard":true,"logic":"all","when":[{"path":"story.has_opening_promise","op":"eq","value":true}],"then":[{"op":"append","path":"requirements","value":"explicit_payoff_link"},{"op":"add_flag","value":"PAYOFF_REQUIRED"}],"rationale":"A promise creates an obligation in the narrative graph.","tags":["hook","payoff"],"category":"Story"}