graphql schema audit derived

{
  "input": {
    "body": {
      "schema": "type Query {\n  feed: [Post]\n  me: Account\n}\n\ninterface Timestamped { createdAt: String! }\ninterface Archivable { archivedAt: String }\n\ntype Post implements Timestamped {\n  id: ID!\n  body: String!\n  legacyTitle: String @deprecated\n  author: Author\n}\n\ntype Account { id: ID! }\ntype Orphan { id: ID! }\n"
    },
    "type": "http",
    "method": "POST",
    "bodyType": "json"
  },
  "output": {
    "type": "json",
    "example": {
      "roots": {
        "query": "Query",
        "mutation": null,
        "subscription": null
      },
      "valid": false,
      "limits": {
        "maxFindings": 500,
        "maxSdlBytes": 262144,
        "maxVersions": 25,
        "maxAvroBytes": 262144,
        "maxConsumers": 50,
        "maxProtoBytes": 262144,
        "maxPathsPerConsumer": 200
      },
      "passed": false,
      "complete": true,
      "findings": [
        {
          "code": "LIST_ITEMS_NULLABLE",
          "type": "Query",
          "field": "feed",
          "detail": "Query.feed is [Post], so a client must handle null items as well as a null list. A list of values is usually what was meant and is written with a non-null item type."
        },
        {
          "code": "DEPRECATION_WITHOUT_REASON",
          "type": "Post",
          "field": "legacyTitle",
          "detail": "Post.legacyTitle is deprecated with no reason, so a client reading the schema is told to stop using it and not what to use instead."
        },
        {
          "code": "UNDEFINED_TYPE_REFERENCE",
          "type": "Post",
          "field": "author",
          "detail": "Post.author returns Author, which the document does not define, so the schema does not build."
        }
      ],
      "request_id": "example-request",
      "service_id": "graphql_schema_audit",
      "type_count": 6,
      "assumptions": [
        "Findings separate things that stop the schema building, such as an interface field a type does not declare, from things that are legal and cost something, such as a nullable list item type that forces...",
        "Reachability is computed from the declared roots, so an unreachable type is reported as dead weight rather than as an error.",
        "Only the document supplied is read. A type defined in another document is reported as undefined rather than assumed present, since nothing is fetched."
      ],
      "limitations": [
        "One SDL document, as a documented subset. Type extensions and directive definitions are listed as not audited, so a schema assembled from extensions will read as incomplete here.",
        "valid is true only when nothing above applied and nothing was left unaudited. Not a certification and not a style review."
      ],
      "observed_at": "2026-10-02T00:00:00.000Z",
      "not_examined": [],
      "finding_count": 7,
      "service_version": "1.0.0",
      "findings_by_code": {
        "TYPE_UNREACHABLE": 2,
        "LIST_ITEMS_NULLABLE": 1,
        "INTERFACE_UNIMPLEMENTED": 1,
        "UNDEFINED_TYPE_REFERENCE": 1,
        "DEPRECATION_WITHOUT_REASON": 1,
        "INTERFACE_FIELD_NOT_DECLARED": 1
      },
      "reachable_input_type_count": 0,
      "deprecation_reasons_checked": true,
      "reachable_output_type_count": 4
    }
  }
}