# DeepAgentState

> **Class** in `deepagents`

📖 [View in docs](https://reference.langchain.com/python/deepagents/graph/DeepAgentState)

AgentState with DeltaChannel on messages to reduce checkpoint growth from O(N²) to O(N).

## Signature

```python
DeepAgentState()
```

## Extends

- `AgentState`

## Properties

- `messages`

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[View source on GitHub](https://github.com/langchain-ai/deepagents/blob/0412009c5441bef8d75a427e1da8909e33ab5b56/libs/deepagents/deepagents/graph.py#L64)