{
  "$schema": "https://json-schema.org/draft/2020-12/schema",
  "$id": "urn:orbiplex:schema:operator-extension-refusal:v1",
  "title": "Operator Extension Refusal v1",
  "description": "Bounded metadata-only diagnostic for one refused extension operation.",
  "x-dia-workflow": "project",
  "x-dia-status": "accepted",
  "x-dia-basis": [
    "doc/project/40-proposals/085-operator-sovereign-extensibility-and-experiment-packages.md"
  ],
  "type": "object",
  "additionalProperties": false,
  "required": ["schema", "schema/v", "refusal/code", "retryable"],
  "properties": {
    "schema": { "const": "operator-extension-refusal.v1" },
    "schema/v": { "const": 1 },
    "refusal/code": {
      "type": "string",
      "enum": [
        "contract/unknown-schema", "hook/unknown", "hook/version-mismatch",
        "offer/digest-mismatch", "offer/invocation-mismatch", "decision/not-contained",
        "decision/ambiguous", "decision/unknown-outcome", "producer/budget-unavailable",
        "producer/required-failed", "producer/output-malformed", "producer/timeout",
        "producer/crash", "package/signing-authority-untrusted", "package/digest-mismatch",
        "package/conformance-failed", "package/incompatible", "activation/plan-stale",
        "activation/operator-binding-missing", "activation/signature-invalid",
        "activation/state-conflict", "activation/session-not-eligible",
        "guard/anchor-unknown", "guard/cap-exceeded", "identifier/invalid",
        "policy/revoked", "policy/expired", "extension/safe-mode"
      ]
    },
    "retryable": { "type": "boolean" },
    "producer/ref": { "$ref": "#/$defs/ref" },
    "package/ref": { "$ref": "#/$defs/ref" },
    "hook/id": { "$ref": "#/$defs/field" },
    "hook/v": { "type": "integer", "minimum": 1, "maximum": 4294967295 },
    "anchor/id": { "$ref": "#/$defs/field" },
    "affected/field": { "$ref": "#/$defs/field" },
    "invocation/ref": { "$ref": "#/$defs/ref" },
    "offer/digest": { "$ref": "#/$defs/digest" },
    "causal/ref": { "$ref": "#/$defs/ref" },
    "declaration/ref": { "$ref": "#/$defs/ref" },
    "declaration/digest": { "$ref": "#/$defs/digest" },
    "omitted-producer/refs": {
      "type": "array", "maxItems": 32, "uniqueItems": true,
      "items": { "$ref": "#/$defs/ref" }
    }
  },
  "$defs": {
    "ref": { "type": "string", "minLength": 1, "maxLength": 256, "pattern": "^[^\\u0000-\\u001F\\u007F]+$" },
    "field": { "type": "string", "minLength": 1, "maxLength": 256, "pattern": "^[^\\u0000-\\u001F\\u007F]+$" },
    "digest": { "type": "string", "pattern": "^sha256:[0-9a-f]{64}$" }
  }
}