curl -X POST http://localhost:3004/list-tools \
  -H "Content-Type: application/json" \
  -d '{
    "image": "agent-environment:latest",
    "tags": {"assignmentId": "my-test-session"}
  }'

{
  "tools": [
    {
      "name": "add_calendar_event",
      "description": "Create a new calendar event",
      "inputSchema": {
        "type": "object",
        "properties": {
          "title": {"type": "string"},
          "start_time": {"type": "integer"},
          "end_time": {"type": "integer"}
        },
        "required": ["title", "start_time", "end_time"]
      }
    }
  ]
}