MonitorMutationResponse

{
  "type": "object",
  "properties": {
    "monitor": {
      "allOf": [
        {
          "$ref": "#/components/schemas/Monitor"
        },
        {
          "type": "object",
          "properties": {
            "tracker_count": {
              "type": "integer",
              "description": "Number of trackers in the monitor. Always 0 in the create response."
            },
            "webhook_secret": {
              "type": "string",
              "description": "The webhook signing secret (\"whsec_...\"). Only present when this request NEWLY enabled webhook signing: a create with notify_webhook: true and a webhook_url, or a PATCH that turns the webhook on (or sets a URL) where no secret existed before. Store it securely. The same Idempotency-Key can recover it for up to 24 hours while it remains the current or valid previous secret. A displaced or expired secret returns idempotency_result_expired without rotating again."
            }
          },
          "required": [
            "tracker_count"
          ]
        }
      ]
    },
    "message": {
      "type": "string",
      "description": "Human-readable confirmation."
    }
  },
  "required": [
    "monitor",
    "message"
  ]
}