# `Excessibility.TelemetryCapture.Analyzers.AssignDiff`
[🔗](https://github.com/lessthanseventy/excessibility/blob/v0.18.1/lib/telemetry_capture/analyzers/assign_diff.ex#L1)

Detects large assigns that get re-diffed frequently.

When a large assign (>5KB) appears in the changes map for >50% of events,
it's being sent over the wire repeatedly — a common LiveView performance
foot-gun.

## Thresholds

- Warning: assign >5KB, diffed in >50% of events
- Critical: assign >20KB, diffed in >50% of events

## Output

    %{
      findings: [
        %{
          severity: :warning,
          message: "`current_user` is 12 KB and was re-diffed in 5/7 events",
          events: [2, 3, 4, 6, 7],
          metadata: %{assign_name: :current_user, size_bytes: 12400, diff_count: 5, total_events: 7}
        }
      ],
      stats: %{assign_diff_ratios: %{current_user: 0.71, filter: 0.14}}
    }

# `analyze`

# `default_enabled?`

# `name`

# `requires_enrichers`

---

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