Generative Engine Optimization — also called AI SEO, AEO, GEO, or LLMO — is the equivalent of SEO for AI search. Regardless of what acronym you prefer, it’s becoming increasingly important for agentic tools like ChatGPT, Claude, and Gemini to know about you and your website — whether you’re a developer, marketer, content creator, or business owner. I’ve never been particularly good at SEO, so I was very excited when I stumbled upon this post by Cassidy Williams.

To quote Cassidy Williams (a brilliant developer, writer, and content creator), the most important things you can do are:

• Creating an /llms.txt file
• Adding “LLM-readable” structured pages (often called /for-llms)
• Adding Schema.org data to the pages of my website
• Being consistent with naming, phrases, and taglines

Naturally, instead of doing all of this myself, I wrote this prompt in Codex and had it generate all of these files for me!

I want to update my blog to be more generative AI search-friendly.

1. Can you read this blog post to understand how we can do this: https://cassidoo.co/post/ai-llm-discoverability
2. I want you to then read through my src/pages/about.astro page, knowing that a lot has changed about me since I wrote it. I want you to read all of the blog posts we have on this website and search the web and to find everything you can about Joe Fabisevich, then lightly update the page accordingly based on my goals and mission for the website. Keep the writing style the same though so we don’t lose my voice.
3. As per the blog post then I want you to write a great llms.txt, for-llms page, and anything else that’s missing for AI tools to know about build.ms.
4. I noticed we’re missing a robots.txt which helps AI crawlers know how to browse my site, so make sure to add one.

Before we start, do you have any clarifying questions I can answer to make this process work better?

I answered a few clarifying questions Codex had about my website and did some light editing to keep my voice intact — and that was it. Codex did 98-99% of the work, and while it was generating those files, I’d already started writing this blog post.

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It’s more important than ever to be discoverable on the internet, and GEO is the next generation of discoverability. If you have a website and want to be found, you’ll need to make your website GEO-friendly. The good news is that agentic tools are great at generating GEO-friendly pages. All you need to do is copy the prompt above — change a few words — and let Codex do the rest. Can’t wait to find you on the internet!