>>Jeanne+(OP)
Reading the title I thought you meant the opposite.
Aka, an ai.txt file that disallow ai to train or use your data similar to robots.txt (but for cases when you still want to be crawled, just not extrapolated)
>>matsem+ae
I've been (slowly) writing a new type of OSS license around this exact concept so it's easier to (legally) stop LLMs hoovering up IP [1] (under "derivative works not permitted").