# RunErrorCluster

> Tracon documentation. Tracon is a .NET package family that adds a control
> plane on Microsoft Agent Framework, published as NuGet packages that run
> inside your own ASP.NET Core application.
>
> Page: https://tracon.dev/http-api/schemas/runerrorcluster/
> Summary: OpenAPI request or response schema for RunErrorCluster, including required fields, defaults, constraints, and linked nested types.

[← All HTTP schemas](/http-api/schemas/)

The summary of runs sharing the same fingerprint.

**Shape:** `object`

| Property | Required | Type | Description | Rules |
|---|---|---|---|---|
| `fingerprint` | yes | `string` | The digest of the normalized message. | — |
| `count` | yes | `integer (int64)` | The number of runs in this cluster. | pattern `^-?(?:0\\|[1-9]\d*)$` |
| `sampleMessage` | yes | `string` | The raw error message of the most recent occurrence in the cluster. | — |
| `sampleRunId` | yes | `string (uuid)` | The run identifier of the most recent occurrence in the cluster. | — |
| `lastSeenAt` | yes | `string (date-time)` | The moment this cluster was last seen (UTC). | — |