Anthropic talked about prompt injection a bunch in the docs for their web fetch tool feature they released today: https://docs.anthropic.com/en/docs/agents-and-tools/tool-use...

My notes: https://simonwillison.net/2025/Sep/10/claude-web-fetch-tool/

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cedws 5 days ago | parent | next [-]

Thanks Simon. FWIW I don’t think you’re spamming.

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jazzyjackson 5 days ago | parent | prev | next [-]

If developers read the docs they wouldn't need LLMs (:

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dingnuts 5 days ago | parent | prev [-]

This is spam. Remove the self promotion and it's an ok comment.

It wouldn't be so bad if you weren't self promoting on this site all day every day like it's your full time job, but self promoting on a message board full time is spam.

	▲	simonw 5 days ago \| parent \| next [-]
		Unsurprisingly I entirely disagree with you. One of the reasons I publish content on my own site is so that, when it is relevant, I can link back to it rather than saying the same thing over and over again in different places. In this particular case someone said "I see no mention of prompt injection from Anthropic or OpenAI in their announcements" and it just so happened I'd written several paragraphs about exactly that a few hours ago!
	▲	mediaman 5 days ago \| parent \| prev [-]
		Simon’s content is not spam. Spam’s primary purpose is commercial conversion rather than communicating information. Your goal seems to be discourage people from writing about, and sharing, their thoughts about technical subjects. To whatever extent you were to succeed, the rest of us would be worse for it. We need more Simons.