# ChatMessage

> 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/chatmessage/
> Summary: OpenAPI request or response schema for ChatMessage, including required fields, defaults, constraints, and linked nested types.

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

**Shape:** `object`

| Property | Required | Type | Description | Rules |
|---|---|---|---|---|
| `authorName` | no | `string` | — | — |
| `createdAt` | no | `string (date-time)` | — | — |
| `role` | no | [`ChatRole`](/http-api/schemas/chatrole/) | — | — |
| `contents` | no | `array` | — | — |
| `messageId` | no | `string` | — | — |
| `additionalProperties` | no | `object` | — | — |