langchain
https://github.com/langchain-ai/langchain
Python
⚡ Building applications with LLMs through composability ⚡
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 supported40 Subscribers
Add a CodeTriage badge to langchain
Help out
- Issues
- Add `BackendIntegrationTests` for Deep Agents `BackendProtocol` implementations
- create_agent discards state_schema subclass in inferred return type
- Agent factory _execute_model_async uses ainvoke (non-streaming) and cannot trigger on_llm_new_token callback; LangGraph use_astream=True only controls graph-level streaming not model token-by-token streaming
- Responses API: parsed_arguments leaks from ParsedResponseFunctionToolCall into AIMessage content, breaking the next turn
- ShellSession._collect_output times out when command output lacks a trailing newline
- `HTMLSemanticPreservingSplitter` drops video/audio URLs from nested source tags
- ClearToolUsesEdit trigger semantics are degenerate with a persistent checkpointer — eviction re-fires every turn
- `create_agent` should support bounded forced retry after tool invocation validation errors
- Bug: Inflated Token Usage Reporting for accounts/fireworks/models/qwen3p6-plus with reasoning_effort="none"
- VideoContentBlock ValueError: Block of type video is not supported
- Docs
- Python not yet supported