# for-ai.org > This site is hosted on the bvid platform. No site-specific llms.txt has been published yet. ## For developers Customize this llms.txt by creating app/for-ai.org/llms.php (or for the bare/stripped domain variant: app/for-ai.org/llms.php) The llms.txt spec is a curated, plain-text index that helps AI engines (ChatGPT, Claude, Perplexity, Gemini, Google AI Overviews) find and cite the most useful pages on the site. Recommended sections: page title, one-line summary, then a list of links with brief annotations.