> ## 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.

# CognitionToolCallMeta

> The shapes of the agent's typed tool calls ( variants): MCP calls, permission requests, computer use, reportblocker, … Narrow on a variant's required key (e.g.

The `_meta` shapes of the agent's typed tool calls (`CognitionToolCall`
variants): MCP calls, permission requests, computer use, report\_blocker, …
Narrow on a variant's required key (e.g. `"cognition.ai/permissionType" in meta`).

```typescript
type CognitionToolCallMeta = NonNullable<Extract<CognitionToolCall, { _meta: unknown }>["_meta"]>
```


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