The "X, not Y" is well known, but another thing that bothers me is "It <verb>s no <noun>" instead of "It doesn't <verb> <noun>".
For example: "the list contains no string" or "it changes no behavior" or "it holds no directory".
[1] https://idlewords.com/2003/04/despite_or_perhaps_because_of_...
The meaning is often different in these constructs. Consider: “Claude answers no questions” vs “Claude doesn’t answer questions”. The first could be a bot or a politician avoiding the substance, the second could be a broken UI or a politician cancelling the QA of a press conference.
The bots are subtle. From your example in your GP comment (and in part depending on the surrounding context) I would expect that an empty list would be less likely the subject of: “the list contains no string”, than in “the list doesn’t contain strings”.
I might be over interpreting the intentionality of Claude in using this construct, however, these models were pretrained by reading so much more than any human, they learn to handle language differently than most humans.