James' Growth Diary

Apr 27, 2026 · Artificial Intelligence

LangGraph Persistence Deep Dive: Checkpoints for Conversation Memory and Resumable Runs

This article explains LangGraph's checkpoint persistence, detailing its data structure, the role of thread_id for multi‑session isolation, the three available checkpointer backends, and how to use checkpoints for conversation memory, resumable workflows, and manual state updates, while highlighting common pitfalls.