# InteractionAddSystemMessageRequest

A system message for a run that hasn't ended, to give its agents more context without restarting it.

**Kind:** an object, used in requests.

## Fields

| Field | Type | Required | Description |
|---|---|---|---|
| `content` | `string` | yes | The text of the system message. Constraints: required (empty or whitespace-only strings are rejected). |

## Example

```json
{
  "content": "..."
}
```

## Where it's used

- [`interactionRuns.addSystemMessage`](https://docs.maitento.com/reference/api/interaction-runs.md) (`POST /interactions/processes/by-id/{id}/system-message`)