CPY-015 Heuristic layer: section

Story serves the buying decision

IF a sales story does not change relevance, belief, desire, trust, objection, or action, THEN cut or reframe it ELSE retain.

Why the rule exists

Narrative in copy should move the decision, not merely entertain.

Condition

The rule fires when this evaluates true. Paths marked below must be present in the fact base; the engine reports the rest rather than guessing them.

ALL
- copy.story.exists eq true
- copy.story.decision_function_count eq 0

Facts this rule reads

Fact paths read by CPY-015 and whether the analyser derives them
Path	Source
`copy.story.exists`	You supply it
`copy.story.decision_function_count`	You supply it

Then

delete_or_reframe — target copy.story

Else

retain — target current_text, No triggering condition is present.

LAKA

Smallest sufficient intervention

Yes

Primary axes

Sources

Sell with a Story — Paul Smith
Using relevant stories in sales and business communication.
Made to Stick — Chip Heath; Dan Heath
Simple, unexpected, concrete, credible, emotional stories.

The raw rule record

Verbatim from 16-copywriting-rules.json. Also available at /v1/rules/CPY-015.

{
  "id": "CPY-015",
  "name": "Story serves the buying decision",
  "domain": "copywriting",
  "layer": "section",
  "strength": "heuristic",
  "human_logic": "IF a sales story does not change relevance, belief, desire, trust, objection, or action, THEN cut or reframe it ELSE retain.",
  "when": {
    "all": [
      {
        "path": "copy.story.exists",
        "operator": "eq",
        "value": true
      },
      {
        "path": "copy.story.decision_function_count",
        "operator": "eq",
        "value": 0
      }
    ]
  },
  "then": [
    {
      "action": "delete_or_reframe",
      "target": "copy.story",
      "allowed_functions": [
        "relevance",
        "belief",
        "desire",
        "trust",
        "objection",
        "action"
      ]
    }
  ],
  "else": [
    {
      "action": "retain",
      "target": "current_text",
      "reason": "No triggering condition is present."
    }
  ],
  "unless": [],
  "because": "Narrative in copy should move the decision, not merely entertain.",
  "diagnostics": [],
  "examples": {},
  "source_ids": [
    "BK-038",
    "BK-037"
  ],
  "laka": {
    "smallest_sufficient_intervention": true,
    "primary_axes": [
      "scope",
      "depth",
      "magnitude",
      "reversibility"
    ]
  }
}