{ "user_id": 1, "name": "Ada" }

{ "type": "renameKey", "options": { "from": "user_id", "to": "id" } }

{ "name": "Ada", "id": 1 }

{
  "name": "rename_user_id_field",
  "description": "Rename `user_id` to `id` to match the downstream schema",
  "function": "circuit.core.transform.json",
  "input": {
    "source": "${{ record }}",
    "operations": [
      { "type": "renameKey", "options": { "from": "user_id", "to": "id" } }
    ]
  },
  "outputs": [
    {
      "name": "normalized_record",
      "description": "Record with `user_id` renamed to `id`",
      "value": "${{ rename_user_id_field.output.transformed_result }}"
    }
  ]
}