An agent runtime that gives Large Language Models (LLMs) from 'Anthropic' < https://www.anthropic.com/>, 'OpenAI' < https://openai.com/>, 'Moonshot' < https://www.moonshot.ai/>, and 'Ollama' < https://ollama.com/> direct access to a live R session with managed workspace state. Tools execute as R function calls with provenance tracking, and a deterministic retrieval system keeps relevant objects in context across turns. Three entry points: a shell command-line interface (CLI), a console read-eval-print-loop via chat(), and a Model Context Protocol (MCP) server via serve() for external clients.