langchain
https://github.com/langchain-ai/langchain
Python
⚡ Building applications with LLMs through composability ⚡
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- Issues
- Chroma similarity search by image not working
- [langchain Agent]: Errors in tool calling from Playwright MCP
- Add AgentRuntime
- Support for Custom Metadata Hydrators in Text Splitters
- Some models' ToolMessage content fields do not support arrays.
- HuggingFace models: "reasoning" field missing in AIMessageChunk
- Reasoning data persists in message history post-agent creation (create_agent)
- ChatXAI: 400 error when AIMessage has tool_calls but no content
- Expose vLLM `stop_reason` in ChatOpenAI.response_metadata
- LANGSMITH_TRACING environment variable prevents per-model tracing control
- Docs
- Python not yet supported