langchain
https://github.com/langchain-ai/langchain
Python
⚡ Building applications with LLMs through composability ⚡
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- Issues
- huggingface: `HuggingFaceEndpoint` drops the token for dedicated Inference Endpoints (`*.endpoints.huggingface.cloud`)
- core: mustache inverted section `{{^key}}` nested inside a `{{#key}}` list section misrenders or raises `IndexError`
- stdio sessions hang forever when a server never responds (no default read_timeout_seconds)
- [RFC] Hardening MCP Tool Trust Boundaries (Sanitization, Output Caps & Dynamic Schema Drift)
- 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”
- Docs
- Python not yet supported