> ## 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.

# CognitionAcp.SidechainThreadMeta

> — attached to every sidechain chunk so clients can route it into the per-anchor thread instead of the main transcript.

`_meta["cognition.ai/sidechain"]` — attached to every sidechain
`session/update` chunk so clients can route it into the per-anchor thread
instead of the main transcript.

```typescript
type SidechainThreadMeta = void
```


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