Building a LangGraph Workflow for Hospital Events and Human Approval

说明与用途

为医院事件构建 LangGraph 工作流，协调并行代理，合成建议，使用 interrupt() 暂停等待医护人员批准，然后精确恢复执行，消除手动协调。

问题

Hospital event-response pipelines need to reason with multiple agents and pause for human approval before acting, but existing graph engines lack built‑in support for pausing and resuming mid‑run.

结果

The LangGraph workflow automatically handles parallel reasoning, state merging, and human‑in‑the‑loop pauses, reducing code complexity and ensuring reliable, auditable hospital operations.

工作流

• Receive event
• Run bed‑matching, staffing, and logistics agents in parallel
• Merge agent outputs into a recommendation
• Pause with interrupt() and expose recommendation to approval UI
• On approval, resume graph with Command(resume=…)
• Apply approved change or back‑off and re‑plan

证据

LangGraph's interrupt() is what makes step 4 possible: calling it inside a node pauses the whole graph, persists its state via the checkpointer, and returns control to your API layer.

来源

When a node calls interrupt(), the whole node re-runs from the top on resume

来源