# buildMemoryExtractionPrompt

**Kind:** Function

**Source:** [`atloria-monorepo/libs/agent-core/src/autonomous/session-memory.ts`](https://github.com/sherkety/atloria/blob/main/atloria-monorepo/libs/agent-core/src/autonomous/session-memory.ts#L75)

Build a prompt for a summarizer model to extract session memories.

This is designed to be sent to a model call. Domain layers can either:
1. Call their model provider directly with this prompt
2. Use a sub-agent with this as the task

Returns null if the session is too short to extract from.

## Signature

```ts
function buildMemoryExtractionPrompt(ctx: SessionContext): string | null
```

## Parameters

| Name | Type |
|---|---|
| `ctx` | `SessionContext` |

**Returns:** `string | null`