It still happens in Fable 5.1 and Opus 5.5 (see below https://news.ycombinator.com/item?id=50158602). The irony is Fable 5.1 can detect many of the security issues Opus 5.5 creates, but when you tell Fable to fix them, it trips the security guardrails and refuses to do so.
[BUG] Claude Code repeatedly creates backdoors and noops critical security code #59018 https://github.com/anthropics/claude-code/issues/59018
I'm curious, have you replicated this behavior in Fable 5.1 or Opus 5.5, or was it only present in Opus 4.x?
It still happens in Fable 5.1 and Opus 5.5 (see below https://news.ycombinator.com/item?id=50158602). The irony is Fable 5.1 can detect many of the security issues Opus 5.5 creates, but when you tell Fable to fix them, it trips the security guardrails and refuses to do so.
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