Hi everyone 
First off — it’s awesome to see middleware introduced in LangGraph v1. We’ve started experimenting with it by building a small open-source package (pip install langmiddle) to explore its potential.
However, we’ve run into an issue:
While we can access metadata from callbacks in ToolRuntime, it seems that the Runtime inside middleware doesn’t expose this information.
Has anyone found a way to access metadata (like thread_id, user_id, etc.) within middleware runtime?
Or could this possibly be considered for inclusion in a future release?
Any insights or workarounds would be greatly appreciated — we’d love to contribute back if there’s a viable pattern here.
