{
  "skeleton": "backend-declaration/v1",
  "required": [
    "blueprint", "kind", "office", "image", "port",
    "traits", "paths", "bounds"
  ],
  "taxonomies": {
    "kind": ["Backend"],
    "traits": [
      "single-container", "embedded-db", "external-db", "rest-api",
      "graphql-api", "realtime", "auth", "admin-ui", "headless"
    ],
    "paths": ["serve-headless", "declare-collections", "issue-tokens"]
  },
  "note": "The platform-backend contract: a backend serves headless (API only - the face stays surface-native at the edge), declares its collections, and issues tokens; the engine behind it is the blueprint's business. A backend that demands a database pod declares external-db and waits for the principal's ruling. Submission appends to registry/blueprints/; nothing removed, nothing duplicated."
}