btwExtra extends the capabilities of the {btw} package by providing a suite of additional tools and helpers, facilitating robust connections between R sessions and Large Language Models. Its primary feature, `btwExtra_tool_env_run_r_code`, acts as an escape hatch, enabling LLMs to execute arbitrary R code directly within a connected session, with automatic output truncation for clarity. This package streamlines the integration of R environments into MCP client workflows, offering flexible configuration options for registering tools and enabling sophisticated R-based operations from LLM prompts.