curl --request POST \
  --url https://api.usezombie.com/v1/workspaces/{workspace_id}/spec/preview \
  --header 'Authorization: Bearer <token>' \
  --header 'Content-Type: application/json' \
  --data '
{
  "messages": [
    {
      "role": "user",
      "content": "<string>"
    }
  ],
  "tools": [
    {
      "name": "<string>",
      "description": "<string>",
      "input_schema": {}
    }
  ]
}
'

"<string>"