NAR-005 Heuristic layer: section

Scene contains a turn

IF a scene begins and ends with the same relevant value, knowledge, power, relationship, or plan, THEN add a turn or compress the scene ELSE retain an intentional atmosphere scene.

Why the rule exists

A scene earns space by changing the story state.

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
- section.type eq "scene"
- section.state_change eq "none"
- section.function neq "atmosphere_only"

Facts this rule reads

Fact paths read by NAR-005 and whether the analyser derives them
Path	Source
`section.type`	You supply it
`section.state_change`	You supply it
`section.function`	You supply it

Then

insert — target section.turn

Else

retain — target current_text, No triggering condition is present.

Test cases

TST-012 · [object Object]

Before: She entered the room, looked around, and left unchanged.
After: She entered to apologize; she left after discovering the letter was gone.
Reason: The scene changes goal-relevant knowledge and plan.

LAKA

Smallest sufficient intervention

Yes

Primary axes

Sources

Story — Robert McKee
Scene design, causality, conflict, and narrative structure.
Self-Editing for Fiction Writers — Renni Browne; Dave King
Dialogue, viewpoint, exposition, scene, and revision.

The raw rule record

Verbatim from 13-narrative-rules.json. Also available at /v1/rules/NAR-005.

{
  "id": "NAR-005",
  "name": "Scene contains a turn",
  "domain": "narrative",
  "layer": "section",
  "strength": "heuristic",
  "human_logic": "IF a scene begins and ends with the same relevant value, knowledge, power, relationship, or plan, THEN add a turn or compress the scene ELSE retain an intentional atmosphere scene.",
  "when": {
    "all": [
      {
        "path": "section.type",
        "operator": "eq",
        "value": "scene"
      },
      {
        "path": "section.state_change",
        "operator": "eq",
        "value": "none"
      },
      {
        "path": "section.function",
        "operator": "neq",
        "value": "atmosphere_only"
      }
    ]
  },
  "then": [
    {
      "action": "insert",
      "target": "section.turn",
      "dimensions": [
        "value",
        "knowledge",
        "power",
        "relationship",
        "plan"
      ]
    }
  ],
  "else": [
    {
      "action": "retain",
      "target": "current_text",
      "reason": "No triggering condition is present."
    }
  ],
  "unless": [],
  "because": "A scene earns space by changing the story state.",
  "diagnostics": [],
  "examples": {},
  "source_ids": [
    "BK-016",
    "BK-017"
  ],
  "laka": {
    "smallest_sufficient_intervention": true,
    "primary_axes": [
      "scope",
      "depth",
      "magnitude",
      "reversibility"
    ]
  }
}