LangGraph in production: Temporal's LangGraph Plugin adds Durable Execution

This post introduces a LangGraph integration for Temporal Python SDK (v1.27.0+) and LangSmith integrations for Python and TypeScript. The LangGraph integration allows LangGraph agents to run as Temporal Workflows, with LangGraph nodes executing as Temporal Activities. This provides durable execution, automatic recovery from failures, and cost-effective, durable human-in-the-loop steps using Temporal's signals and timers. The LangSmith integration propagates trace context across Temporal boundaries for end-to-end tracing of agent runs.