Assistant not returning results in JSON even with schema defined

[jd25]

I have defined the schema for responses in an Assistant, and in the Playground it will return JSON, but when calling with the API it returns a string. That string is the correct JSON, but it’s in text format. Any help understanding here would be appreciate, thanks!

When I use Playground with the Assistant:
{
“tag_number”: “CHWP-1~3”,
“qty”: “3”,
“total_system_flow”: “550 USgpm”,
“environment”: “Not specified”
}

When I just the API the response.content[0] is the following. Granted, it’s JSON, but it doesn’t fit my schema (see below) and it defines the actual output as text.

{
    type: 'text',
    text: {
      value: '{"tag_number":"CHWP-1~3","qty":"3","total_system_flow":"550 USgpm","environment":""}',
      annotations: []
    }
  }

Here’s the settings and schema I’m using:

Schema:

{
  "name": "json_response",
  "strict": true,
  "schema": {
    "type": "object",
    "properties": {
      "tag_number": {
        "type": "string",
        "description": "The tag number of the current pump"
      },
      "qty": {
        "type": "string",
        "description": "The qty of the current pump"
      },
      "total_system_flow": {
        "type": "string",
        "description": "The total system flow of the current pump"
      },
      "environment": {
        "type": "string",
        "description": "The environment of the current pump"
      }
    },
    "additionalProperties": false,
    "required": [
      "tag_number",
      "qty",
      "total_system_flow",
      "environment"
    ]
  }
}

[Diet]

Where does it deviate from the schema? (I don’t see it)

Message content text value is always a string:

https://platform.openai.com/docs/api-reference/messages/object

You have to push it through JSON.parse (or your environment’s equivalent) to turn it into an actual object