langchain
https://github.com/langchain-ai/langchain
Python
⚡ Building applications with LLMs through composability ⚡
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- Issues
- MCP tools with a parameter named "config" silently broken by LangChain's RunnableConfig injection
- Support for Notifications and Progress sent from the MCP server
- Add retry mechanism
- Add Support to MCP Apps
- Allow specifying more than one server names in the get_tools call of MultiServerMCPClient
- Issue: Anthropic Messages API returns 400: tool_result.content.0.text.id from _convert_call_tool_result is rejected as “extra input”
- How to create fallbacks for agents in case some MCP servers (providing tools) cannot be reached?
- Prompts and Resources auto-discovery
- Feature request: Add MCP Sampling support
- structuredContent is dropped from isError=True tool results (but preserved on success)
- Docs
- Python not yet supported