There may actually be some utility here. LLM agents refuse to traverse the links. Tested with gemini-3-pro, gpt-5.2, and opus 4.5.
edit: gpt-oss 20B & 120B both eagerly visit it.
LLM led scraping might not as it requires an LLM to make a choice to kick it off, but crawling for the purpose of training data is unlikely to be affected.
Sounds like a useful signal for people building custom agents or models. Being able to control whether automated systems follow a link via metadata is an interesting lever, especially given how inconsistent current model heuristics are.
I wish this came a day earlier.
There is a current "show your personal site" post on top of HN [1] with 1500+ comments. I wonder how many of those sites are or will be hammered by AI bots in the next few days to steal/scrape content.
If this can be used as a temporary guard against AI bots, that would have been a good opportunity to test it out.
1. https://news.ycombinator.com/item?id=46618714