I have bad news for you: LLMs are not reading llms.txt nor AGENTS.md files from servers. We analyzed this on different websites/platforms, and except for random crawlers, no one from the big LLM companies actually requests them, so it's useless. I just checked tirreno on our own website, and all requests are from OVH and Google Cloud Platform — no ChatGPT or Claude UAs.
I also wonder; it's a normal scraper mechanism doing the scraping, right? Not necessarily an LLM in the first place so the wholesale data-sucking isn't going "read" the file even if it IS accessed? Or is this file meant to be "read" by an LLM long after the entire site has been scraped?
I assume that there are data brokers, or AI companies themselves, that are constantly scraping the entire internet through non-AI crawlers and then processing data in some way to use it in the learning process. But even through this process, there are no significant requests for LLMs.txt to consider that someone actually uses it.