RedNote is an open-source AI agent built with Python and LangChain that lets users input raw text or document files for automated processing. It leverages large language models to generate concise summaries, extract action items, identify key insights, and categorize information. The agent maintains context across sessions using built-in memory storage, supporting cumulative knowledge building. Users can pose follow-up questions to refine or expand summaries, and the system can export results as structured markdown files. RedNote’s modular architecture and plugin system enable integration with external services like Notion or Obsidian. This end-to-end solution enhances note-taking, research synthesis, and knowledge management for individuals and teams.

Built on LangGraph, this toolkit orchestrates AI agents within LiveKit rooms, capturing audio streams, transcribing speech via Whisper, and generating contextual replies using popular LLMs like OpenAI or local models. Developers can define event-driven triggers and dynamic workflows using LangGraph’s declarative orchestration, enabling use cases such as Q&A handling, live polling, real-time translation, action item extraction, or sentiment monitoring. The modular architecture supports seamless integration, extensibility for custom behaviors, and effortless deployment in Node.js or browser-based environments with full API access.