# 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/9f4bdf7c8b8bfc86877729d80ed286bd71d78706/libs/deepagents/deepagents/graph.py#L74)