# Problem.ranked

URL: /business/events/Problem.ranked · Id: `event:Problem.ranked`

> Emitted each time a Problem is ranked.

[Problem.rank](/business/nouns/problem/rank) emits `Problem.ranked` when it completes on a [Problem](/business/nouns/problem).

| Property | Value |
| --- | --- |
| Emitted by | [Problem.rank](/business/nouns/problem/rank) |
| Noun | [Problem](/business/nouns/problem) |
| Wakes | None. |

### Payload
Each delivery is an [Event](/business/nouns/event) record. `data` holds what [Problem.rank](/business/nouns/problem/rank) returns.

| Field | Type | Required | Description |
| --- | --- | --- | --- |
| `name` | `string` | Yes | `Problem.ranked`. |
| `at` | `datetime` | Yes | When it happened. |
| `seq` | `integer` | No | Its position in the namespace, one more than the Event before; any seq is a cursor into the history. |
| `data` | `json` | Yes | The Thing as the Action left it. |
| `data.problems` | list of [Problem](/business/nouns/problem) | Yes | Problems, highest first, each with its score. |

### Example
```json
{
  "$id": "https://api.sb/routewise.dev/events/event_1",
  "$type": "Event",
  "name": "Problem.ranked",
  "at": "2026-10-22T12:00:00Z",
  "data": {
    "problems": [
      {
        "$id": "https://api.sb/routewise.dev/problems/problem_1",
        "$type": "Problem",
        "statement": "Plans delivery routes for courier fleets through an API."
      }
    ]
  },
  "seq": 1
}
```