langchain
https://github.com/langchain-ai/langchain
Python
⚡ Building applications with LLMs through composability ⚡
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- Issues
- [langchain_huggingface] Pydantic schema is not supported for function calling
- Allow defining `state_schema` through the `@wrap_tool_call` decorator
- bug(langchain): agent terminates on return_direct tool even when tool call fails
- Problems with thinking/reasoning and structured output for tools using Anthropic
- ChatMistralAI: citation metadata from Mistral API response is silently dropped
- [langchain] Agent model nodes in factory.py don't propagate config to model_.ainvoke, breaking callback handlers
- [langchain] trace=False on agent model node in factory.py prevents callback setup
- RunnableWithMessageHistory deserializes constructor-shaped output into live SystemMessage and persists it to history
- `RunnableRetry` does not fire `on_retry` callback
- fix(langchain): avoid shared process-group kill in shell middleware
- Docs
- Python not yet supported