langchain
https://github.com/langchain-ai/langchain
Python
⚡ Building applications with LLMs through composability ⚡
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- Issues
- fix(langchain): connect only the member client for `ClientGroup` MCP tool calls
- core: `stream_events(version="v3")` keeps only the last chunk's usage token details instead of summing them
- core: tool run stays open when cancelled from an anyio cancel scope
- core: BaseRetriever leaves the run open when the call is cancelled
- docs(openai): document Foundry Local usage with ChatOpenAI
- fix(anthropic): fall back to message_start usage when message_delta omits fields
- feat(langchain): `on_cancel` middleware hook for `create_agent`
- fix(core,langchain): keep the artifact on handled `ToolException`s
- `extract_sub_links` builds `?a=1?b=2` URLs for query-only links
- `extract_sub_links(prevent_outside=True)` lets `/docs` match sibling `/docsite`
- Docs
- Python not yet supported