{
  "$schema": "https://json-schema.org/draft/2020-12/schema",
  "$id": "#/components/schemas/TaskRunStartRequest",
  "title": "TaskRunStartRequest",
  "type": "object",
  "properties": {
    "pending_user_message": {
      "type": "string",
      "description": "Initial or follow-up user message to include in the run prompt."
    },
    "pending_user_artifact_ids": {
      "type": "array",
      "items": {
        "type": "string",
        "maxLength": 128
      },
      "description": "Identifiers for run artifacts that should be attached to the next user message delivered to the sandbox."
    }
  }
}