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How-to guides

Welcome to the LangGraph how-to guides! These guides provide practical, step-by-step instructions for accomplishing key tasks in LangGraph.

Controllability

LangGraph is known for being a highly controllable agent framework. These how-to guides show how to achieve that controllability.

Persistence

LangGraph makes it easy to persist state across graph runs. The guide below shows how to add persistence to your graph.

Human in the Loop

One of LangGraph's main benefits is that it makes human-in-the-loop workflows easy. These guides cover common examples of that.

Streaming

LangGraph is built to be streaming first. These guides show how to use different streaming modes.

Other

Prebuilt ReAct Agent

These guides show how to use the prebuilt ReAct agent. Please note that here will we use a prebuilt agent. One of the big benefits of LangGraph is that you can easily create your own agent architectures. So while it's fine to start here to build an agent quickly, we would strongly recommend learning how to build your own agent so that you can take full advantage of LangGraph.

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