{
  "$schema": "https://mwl.dev/v0.1/provider/schema.json",
  "uri": "mwl:provider.call/mwl/mock/v1",
  "codePrefix": "Mock",
  "description": "A configurable stand-in call provider. Produces a Result from its arguments alone, deterministically: a success carrying a chosen value (default: the dispatch's input) or a configured failure, after an optional delay, with optional window metadata.",
  "parameters": {
    "type": "object",
    "additionalProperties": false,
    "properties": {
      "value": {
        "description": "The value of the success Result produced. Defaults to the dispatch's input. Unread when a non-null failure is supplied."
      },
      "failure": {
        "description": "A failure Result to produce instead of a success. Takes precedence over value when non-null; null is equivalent to absent: the success path.",
        "type": ["object", "null"],
        "additionalProperties": false,
        "required": ["code"],
        "properties": {
          "type": {
            "type": "string",
            "not": { "const": "success" },
            "default": "error",
            "description": "The failure Result's type. MUST be a non-success type."
          },
          "code": {
            "type": "string",
            "description": "The failure code, the author's to choose; emulation is this provider's documented purpose."
          },
          "message": {
            "type": "string",
            "description": "A human-readable description."
          },
          "details": {
            "description": "Arbitrary structured context."
          },
          "retryable": {
            "type": ["boolean", "null"],
            "description": "An advisory retry signal."
          },
          "previous": {
            "type": ["object", "null"],
            "description": "A chained prior failure. Defaults to absent; the mock emits the envelope exactly as configured."
          }
        }
      },
      "delay": {
        "type": "string",
        "format": "duration",
        "description": "An ISO 8601 duration to wait before resolving."
      },
      "metadata": {
        "type": "object",
        "additionalProperties": true,
        "description": "Exposed verbatim as the window's provider.metadata."
      }
    }
  },
  "metadata": {
    "type": "object",
    "additionalProperties": true,
    "description": "The mock's window carries whatever its metadata parameter supplied: the author's to configure."
  },
  "failureCatalog": {
    "closed": [],
    "open": ["*"]
  }
}