langchain
https://github.com/langchain-ai/langchain
Python
⚡ Building applications with LLMs through composability ⚡
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- Issues
- How to add persistence sessions when working with langgraph
- Feature Request: Pass `_meta` parameter through to MCP SDK `call_tool()`
- How to apply resources when using create_react_agent?
- Token budget middleware that checks in with the user instead of hard-stopping
- Blob leaks a UTF-8 BOM into as_string()
- langchain-openrouter: ToolMessage content blocks (e.g. images) are sent to the API unconverted, failing client-side with ValidationError
- [Security Hardening] Mitigating OWASP LLM01 Indirect Prompt Injections in Web Loaders via CSS Render-Layer Obfuscation (CWE-1427)
- core: content_blocks raises TypeError on a v0 multimodal block that carries an id
- bug(langchain): create_agent ends the loop on an invalid structured-output call when an ordinary tool call is in the same batch (no retry feedback)
- test(core): skip prompt-loading symlink tests when symlinks are unavailable
- Docs
- Python not yet supported