# Message

Presentation for user, assistant, tool, and system messages with consumer-rendered content and actions.

Use Message to identify the author or event role with a required label. Render rich content and actions through consumer-owned snippets. Keep tool and system output distinct from assistant prose.

## API

The package declarations define these public members.

| Member | Type | Kind | Required | Default | Description |
| --- | --- | --- | --- | --- | --- |
| `actions` | `Snippet` | snippet | No | `undefined` | No additional description. |
| `avatar` | `Snippet` | snippet | No | `undefined` | No additional description. |
| `content` | `Snippet` | snippet | Yes | - | No additional description. |
| `label` | `string` | prop | Yes | - | Visible and accessible author or event label. |
| `messageId` | `string` | prop | Yes | - | No additional description. |
| `metadata` | `Snippet` | snippet | No | `undefined` | No additional description. |
| `role` | `MessageRole` | prop | Yes | - | No additional description. |

## Related

- [ActivityStatus](/docs/components/activity-status): Compact agent activity status with elapsed time, task progress, and one live announcement.
- [AgentTrace](/docs/components/agent-trace): Controlled disclosure of observable stages, searches, tools, files, and checks.
- [AgentResponse](/docs/components/agent-response): Assistant result with consumer-rendered content, streaming state, sources, actions, and follow-up prompts.