> ## 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.

# toolCallMeta

```typescript
toolCallMeta(payload: unknown): undefined | CognitionToolCallMeta
```

The `_meta` of a `tool_call` / `tool_call_update`, typed as [CognitionToolCallMeta](https://docs.devin.ai/sdk/reference/types/CognitionToolCallMeta.md).

## Parameters

**payload** `unknown` *required*

## Returns

`undefined | CognitionToolCallMeta`


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