Field notes on native iOS engineering, web products, and shipping with confidence.
llms.txt is a proposed Markdown file that lists a site's key pages for AI agents to read. Here is the format, who actually uses it, and how to write one.
Getting cited by ChatGPT, Perplexity and Google AI Overviews takes search fundamentals plus platform-specific authority, not a special AI file.
Answer engine optimization (AEO) means earning a citation inside an AI generated answer, not just ranking a page. Here is what changes, and what does not.