helixdb/helix-db — reverse-engineered prompt

Build me an open source Rust database project like HelixDB. I want it to run locally from a simple CLI, let me initialize a project, start and stop a local dev database, and send JSON query requests to an endpoint like /v1/query.

The database should be useful for AI apps and RAG. It should store connected data as a graph, store vector embeddings for text, support keyword search, vector search, and graph traversal, and make it easy to ask questions over my data without wiring together separate databases. Include a simple built in way to embed text, plus a basic MCP style interface so agents can discover data and move through the graph.

Please make the first version practical rather than perfect. Include a clear README, example data, example query JSON, and CLI commands that show the whole flow from install to query. Keep it private and local by default. Look up current docs online if you need to.