# `Excessibility.TelemetryCapture.Enrichers.CollectionSize`
[🔗](https://github.com/lessthanseventy/excessibility/blob/v0.18.1/lib/telemetry_capture/enrichers/collection_size.ex#L1)

Enriches timeline events with collection size information.

Tracks:
- Individual list sizes (with paths)
- Maximum list size
- Total list items count

## Usage

Runs automatically during timeline building. Adds collection metrics
to each timeline event.

## Example Output

    %{
      sequence: 3,
      event: "handle_event:filter",
      list_sizes: %{products: 50, "cart.items": 12},
      max_list_size: 50,
      total_list_items: 62
    }

# `cost`

# `enrich`

# `name`

---

*Consult [api-reference.md](api-reference.md) for complete listing*