langgraph
https://github.com/langchain-ai/langgraph
Python
Build resilient language agents as graphs.
Triage Issues!
When you volunteer to triage issues, you'll receive an email each day with a link to an open issue that needs help in this project. You'll also receive instructions on how to triage issues.
Triage Docs!
Receive a documented method or class from your favorite GitHub repos in your inbox every day. If you're really pro, receive undocumented methods or classes and supercharge your commit history.
Python not yet supported4 Subscribers
Add a CodeTriage badge to langgraph
Help out
- Issues
- ToolNode silently overwrites duplicate tool names before dispatch
- ToolNode accepts ToolMessage results bound to sibling tool_call_id values
- Bug: ToolNode._normalize_tool_response raises TypeError for MCP tools returning content block lists
- langgraph-checkpoint-postgres + psycopg 3: `aget_tuple` raises `operator does not exist: text = bytea` on fresh thread / empty checkpoint_ns
- Validate encryption context handlers at registration time
- perf(checkpoint): _msgpack_default walks an O(N) isinstance ladder on every value
- perf(langgraph): _get_channels calls get_type_hints on every StateGraph.compile() (cold-start tax)
- InMemoryStore.search() crashes on $gt/$gte/$lt/$lte when an item is missing the filtered key or has a non-numeric value
- AsyncSqliteSaver.put() and put_writes() deadlock instead of raising when called synchronously from within the event loop
- LANGGRAPH_STRICT_MSGPACK env var captured at import time, bypassed when set during startup
- Docs
- Python not yet supported