PaperSage

AI-powered research reading workbench. Project-based paper Q&A with Hybrid RAG, multi-agent workflows (ReAct/Plan-Act/RePlan), long-term memory, and traceable evidence. Built with LangChain + LangGraph + Streamlit. Maintained by 0verL1nk on GitHub, where it has earned 38 stars from the community.

It's actively developed around agent, ai, hybrid-rag, and is a solid reference for anyone building with these tools.