Yuxi (语析) is an agent harness platform designed for deploying multi-tenant AI agents in production environments. It combines LightRAG-based knowledge retrieval with Neo4j knowledge graph management, enabling agents to reason over both vector-based semantic search and structured graph relationships. The system is built using LangChain for LLM orchestration, FastAPI for the backend API, and Vue for the frontend dashboard. It supports DeepAgents workflow automation, MinerU for PDF document processing, and MCP (Model Context Protocol) for extending agent capabilities.