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LangGraph: durable, stateful AI agents as graphs

LangGraph is a framework for building durable, stateful AI agents modeled as graphs, with native human-in-the-loop. Used by Klarna, Uber and LinkedIn.

Published on June 5, 20265 min readView on GitHub

AI agents in production need to survive failures, keep state and often pause for a human to decide. LangGraph is a low-level framework built exactly for that: it models the agent as a durable state graph.

What is LangGraph?

With primitives like nodes, edges, a typed state schema, checkpoints (persistence) and interrupts, LangGraph enables agents that survive failures and resume where they left off, with inspection and editing of state mid-run. It is adopted by companies like Klarna, Uber, LinkedIn and Replit.

Key features

  • Durable execution: the agent survives failures and resumes from a checkpoint
  • Typed state and persistence via checkpointers
  • Native human-in-the-loop: inspect and change state mid-flow
  • Python and JavaScript/TypeScript versions
  • Production adoption by Klarna, Uber, LinkedIn, Replit

How Reche uses it

Human-in-the-loop and durability are not luxuries, they are what separates a production agent from a demo. Reche uses these principles in RecheOS and implements reliable agents for clients, with the control real cases demand.

Want to implement this in your product?

Reche's initial diagnosis defines scope, timeline, and budget. Credited to the project if you move forward.