The new functionality of the LLM CLI tool allows users to run tools directly from Python code or through plugins. This feature is seen as a significant enhancement that enables more dynamic interactions and capabilities, especially when it comes to leveraging large language models (LLMs). User feedback highlights various experiences with the tool, including challenges in creating plugins, reinstalling complexities, and queries about unique use cases that set it apart from similar tools. Additionally, there's interest in the convergence of development tools around LLMs, showcasing a trend where various solutions are aligning to improve functionalities and user experience.