LangGraph Checkpointing: Three Production Rewrites to Stop Losing State

1Key Takeaways

• Originally published on AIdeazz — cross-posted here with canonical link.
• My first LangGraph production agent silently discarded every job for weeks.
• The agent was supposed to process user requests from Telegram, break them down into sub-tasks, and execute them across multiple steps, storing intermediate results.
• Instead, it would process the first step, then restart from scratch on the next invocation, losing all prior context.