LangGraph for Stateful Agent Workflows
Practical LangGraph production guides for state isolation, checkpoints, update-state failures, subgraphs, supervision, human approval, retries and observability.
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All AI Engineering
Browse the complete reviewed English AI engineering library.
LangGraph State Isolation
Design thread_id, session_id and user_id boundaries so concurrent Agent state does not leak across requests.
LangGraph Checkpointer
Choose Memory, SQLite or Redis persistence and understand checkpoint recovery and transaction boundaries.
Human-in-the-Loop Approval
Pause with interrupt(), persist approval state and resume safely after a human decision.
Error Recovery and Retry
Handle tool errors, timeouts, retries and recoverable graph failures without corrupting state.
Supervisor and Worker Handoffs
Coordinate multi-agent workers with explicit handoffs, state merging and failure routing.