{
  "context": "This criteria evaluates how well the engineer uses @supabase/supabase-js to implement custom WebSocket transport for real-time subscriptions. The focus is on correctly configuring the client with custom transport options and properly subscribing to database changes.",
  "type": "weighted_checklist",
  "checklist": [
    {
      "name": "Custom transport configuration",
      "description": "Uses the realtime.transport option in createClient() to provide a custom WebSocket transport implementation that wraps or extends the default WebSocket",
      "max_score": 30
    },
    {
      "name": "Client initialization",
      "description": "Correctly calls createClient() with supabaseUrl and supabaseKey, including the custom transport in the realtime configuration options",
      "max_score": 15
    },
    {
      "name": "Channel creation",
      "description": "Creates a real-time channel using the channel() method with an appropriate channel name for the subscription",
      "max_score": 10
    },
    {
      "name": "Postgres changes subscription",
      "description": "Uses the on() method with 'postgres_changes' event type to subscribe to INSERT events, specifying the correct schema ('public') and table ('notifications')",
      "max_score": 25
    },
    {
      "name": "Channel subscription",
      "description": "Calls subscribe() on the channel to activate the subscription and establish the WebSocket connection",
      "max_score": 10
    },
    {
      "name": "Cleanup and unsubscribe",
      "description": "Implements proper cleanup by calling unsubscribe() or removeChannel() to close the subscription and WebSocket connection",
      "max_score": 10
    }
  ]
}