{"id":"CPY-020","name":"Optimize downstream value, not click alone","domain":"copywriting","layer":"content_system","strength":"hard_constraint","human_logic":"IF a variant increases clicks but lowers qualified action, retention, revenue quality, or trust, THEN reject or segment it ELSE retain.","when":{"all":[{"path":"experiment.click_rate_change","operator":"gt","value":0},{"any":[{"path":"experiment.qualified_action_change","operator":"lt","value":0},{"path":"experiment.retention_change","operator":"lt","value":0},{"path":"experiment.revenue_quality_change","operator":"lt","value":0},{"path":"experiment.trust_signal_change","operator":"lt","value":0}]}]},"then":[{"action":"reject_or_segment","target":"experiment.variant"}],"else":[{"action":"retain","target":"current_text","reason":"No triggering condition is present."}],"unless":[],"because":"A local metric can improve while the business and reader outcome degrades.","diagnostics":[],"examples":{},"source_ids":["BK-033","BK-035"],"laka":{"smallest_sufficient_intervention":true,"primary_axes":["scope","depth","magnitude","reversibility"]},"requires_facts":["experiment.click_rate_change","experiment.qualified_action_change","experiment.retention_change","experiment.revenue_quality_change","experiment.trust_signal_change"],"tests":[],"sources":[{"id":"BK-033","title":"Scientific Advertising","creator":"Claude C. Hopkins","domain":"advertising","type":"Book","note":"Testing, measurement, offers, and accountable advertising.","url":null},{"id":"BK-035","title":"Influence: The Psychology of Persuasion","creator":"Robert B. Cialdini","domain":"persuasion","type":"Book","note":"Evidence-based principles of influence and ethical persuasion.","url":null}],"defined_in":{"file":"16-copywriting-rules.json","title":"Persuasive and Direct-Response Copy Rules","slug":"copywriting-rules"}}