{
  "title": "String, Brane, and Top-Down Constructions: validity and failure map",
  "chapter": "String, Brane, and Top-Down Constructions",
  "kind": "validity-failure",
  "schematic": true,
  "not_to_scale": true,
  "stages": [
    "worldsheet and brane data",
    "decoupling or near-horizon limit",
    "flux and compact factors",
    "truncation and corrections",
    "top-down dictionary"
  ],
  "claims": [
    {
      "object": "brane decoupling",
      "required_declaration": "charges, energy scaling, and asymptotics",
      "diagnostic": "open/closed and near-horizon limit",
      "licensed_conclusion": "a separated interacting sector",
      "unsupported_promotion": "a complete dictionary at finite cutoff"
    },
    {
      "object": "lower-dimensional truncation",
      "required_declaration": "retained fields and compact geometry",
      "diagnostic": "uplift every lower-dimensional solution",
      "licensed_conclusion": "a consistent subsector",
      "unsupported_promotion": "the complete compactified theory"
    },
    {
      "object": "supergravity regime",
      "required_declaration": "curvature, string scale, and string coupling",
      "diagnostic": "alpha-prime and loop estimates",
      "licensed_conclusion": "controlled low-energy gravity",
      "unsupported_promotion": "a nonperturbative definition"
    }
  ],
  "takeaway": "Top-down control requires separate checks of decoupling, flux quantization, Kaluza-Klein scales, truncation, string corrections, and loops."
}