MCPR (Model Context Protocol Tools for R) addresses a critical limitation in current AI-assisted R programming: the stateless nature of AI agent execution. While traditional AI agents invoke `Rscript` for each command, hindering iterative and state-dependent data analysis, MCPR provides a robust framework. It allows AI agents to connect to and operate within a live R environment, preserving the workspace state across commands. This capability is essential for complex, multi-step analytical workflows that span hours or days, fostering more practical and efficient human-AI collaboration in R.