gemini-cli is a command line tool that calls Gemini and shells out to common text utilities and MCP for tool use.

This appears to just be a plugin where you do things on GitHub, that sends out notifications to gemini-cli running on cloud, then gemini-cli responds and sends notifications back.

Basically just saving you the hassle of cloning at a specific commit, calling gemini-cli manually, and then uploading the result manually.