> ## Documentation Index
> Fetch the complete documentation index at: https://docs.devin.ai/llms.txt
> Use this file to discover all available pages before exploring further.

# historySkeleton

```typescript
historySkeleton(payload: unknown): undefined | HistorySkeletonAnchor[]
```

The history skeleton of a `session/resume` result or `cognition.ai/session` snapshot.

## Parameters

**payload** `unknown` *required*

## Returns

`undefined | HistorySkeletonAnchor[]`


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