itallstartedwithaidea/google-ads-gemini-extension — reverse-engineered prompt

Build me a Gemini CLI extension that lets me manage Google Ads by chatting in plain English from the terminal. I want to be able to sign in with a simple browser flow, see which Google Ads accounts I have access to, ask for campaign analysis, account audits, wasted spend, and optimization ideas, and get useful answers based on live Google Ads data instead of fake examples.

Please make it feel practical and reliable for real accounts. It should support the common fix where restarting Gemini and signing out then back in clears stale auth or env issues. If someone wants a more advanced local credential setup, that can be there too, but the browser login should be the easiest path. Save session info safely, handle expired sessions clearly, and include a couple of slash commands for login and logout plus normal chat prompts like listing accounts and reviewing performance.

Add a clear README with first time setup, troubleshooting, and examples. You can look up current Gemini CLI and Google Ads docs if needed.