It's interesting to note here that Anthropic indeed don't use "do not X" in the ... | Hacker News

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		jug 13 days ago \| parent \| context \| favorite \| on: Changes in the system prompt between Claude Opus 4... It's interesting to note here that Anthropic indeed don't use "do not X" in the Opus system prompts. However, "Claude does not X" is very common.

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wongarsu 13 days ago [–]

I suspect that lets the model "roleplay" as Claude, promoting reasoning like "would Claude do X?" or "what would Claude do in this situation?"

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