Tag

#checkpointer

2 posts tagged.

LangGraph Checkpointer Requires 'configurable' Keys: The Real Fix (2026)

"Checkpointer requires one or more of the following 'configurable' keys" means you compiled with a checkpointer and invoked without one. The message names three keys and only thread_id works. Measured in Python and TypeScript (2026).

September 1, 20269 min read152

AI agents

LangGraph Checkpointer: Persist and Resume Agent State (2026)

Make a LangGraph agent durable with a checkpointer: attach SqliteSaver in one line, crash the graph on purpose, and resume from disk without re-running the Claude call.

July 25, 20268 min read516

#checkpointer · AgentNotebook