Multi-agent RAG (LangGraph) exposed as an MCP server: plan -> retrieve -> synthesize -> self-critique with citations. Claude + pgvector + Voyage + Firecrawl.
<p align="center"> <img src="docs/img/01-architecture.png" alt="Agentic RAG — Multi-Agent Graph" width="880"> </p> A **multi-agent Retrieval-Augmented Generation system exposed as an MCP server**. Ask a question and a [LangGraph](https://langchain-ai.github.io/langgraph/) pipeline plans the retrieval, pulls evidence from a **pgvector** knowledge base, optionally augments it with