Files
langgraph/libs
Nick Hollon bebcd20815 Address review feedback on subgraph lifecycle streaming
- Robustify nested-Pregel detection with a parent_run_id fallback so
  subgraphs compiled with name equal to their node name are still
  recognized.
- Narrow bare excepts in SubgraphTransformer close/fail paths; log at
  warning with exc_info instead of silently swallowing.
- Assert mux registration in SubgraphTransformer._on_started instead
  of silently dropping events.
- Warn when RemoteGraph strips an unsupported "lifecycle" stream mode
  so callers aren't left wondering why no events arrive.
- Reject pre-built transformer instances in StreamingHandler; factories
  are required so transformers propagate into every subgraph scope.
- Comment the forward-before-close ordering in SubgraphTransformer.
- Trim duplicated pump/projection docstrings across run-stream classes.
- Add end-to-end tests for trigger_call_id, subgraph interrupt, and the
  name-collision detection fallback.
2026-04-18 18:59:23 -04:00
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