You don't even need to put it in a project, put it in all your blog posts as invisible (white font white background) text, and if Claude winds up reading your website as part of a research task, you basically bricked someone's Claude session.

Why is it amateur hour at Anthropic lately?

Because AI is a new product category in tech, and every single new product category in tech always, no exceptions, insists on learning nothing from history, and so the dumb shit is repeated until they learn their own lessons.

I am almost 40, and I have seen the same pattern play out several times now, it’s always the same.