I use them everyday and they work greatly, I even made a command (using Claude, actually Claude made everything in that script) that calls Gemini from the terminal so that I can ask for question related to the shell directly there, just doing a: ai "how can I convert a webp to a png", the system prompt asks to be brief, using markdown (it does display nicely), that most question are related to Linux and it provides information about my OS (uname -a), the last code block is also copied in the clipboard, super useful, I imagine there are plenty online of similar utilities.