{
  "$schema": "http://json-schema.org/draft-07/schema#",
  "properties": {
    "promptHash": {
      "default": null,
      "description": "Whitespace-normalized SHA-256 of the session base instructions, matching the uploaded `prompt_hash` tag. Does not include later developer messages. Null when the reported rollout has no prompt metadata.",
      "type": [
        "string",
        "null"
      ]
    },
    "threadId": {
      "type": "string"
    }
  },
  "required": [
    "threadId"
  ],
  "title": "FeedbackUploadResponse",
  "type": "object"
}