langchain
https://github.com/langchain-ai/langchain
Python
⚡ Building applications with LLMs through composability ⚡
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- Issues
- I am invoking playwright MCP tools by using the create_agent，Browser session terminates immediately after browser_navigate execution, causing subsequent tool calls to fail.
- HuggingFace models: "reasoning" field missing in AIMessageChunk
- Add MySQL language text splitter support
- feat(core): enrich HTML `pretty_repr` for prompt templates and display partial variables
- To add `OutputFixingParser` or an alternate
- Reasoning data persists in message history post-agent creation (create_agent)
- ChatXAI: 400 error when AIMessage has tool_calls but no content
- fix(mistralai): enforce `max_concurrent_requests`
- "End" exit behaviour in AgentMiddleware does not trigger `on_agent_finish` hook of AsyncCallbackHandler
- [langchain-deepseek] Missing `reasoning_content` in request payload when using deepseek-reasoner with tool calling
- Docs
- Python not yet supported