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A comment on Ask HN: How to rewrite `Claude.md` and install the skill for Opus5 and Fable5.

Re:Ask HN: How to rewrite `Claude.md` and install the skill ... by gojkoa on Tuesday July 28, 2026 @02:31AM (#49080152)
where did you get the "are no longer compatible" part? we moved from opus 4 to opus 5 without changing anything and no specific conflicts. used fable for a while, also did not have to change anything. I read some advice on the anthropic website that opus 5 doesn't require as many examples as before, but this was a recommendation how to make things shorter, not a backwards compatibility issue.
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Re:Ask HN: How to rewrite `Claude.md` and install the skill ... by hyhmrright on Tuesday July 28, 2026 @04:03AM (#49080801)
Thanks; the issue likely stemmed from the translation software used previously. I’ve seen many people online mention that removing skills like "superpowers" reduces token consumption and shortens completion times. I also read that Anthropic removed over 80% of the system prompts for Claude Code. I’m interested in finding out how to adjust `claude.md` and the installed skills to better optimize performance for the Opus 5 and Fable 5 models.
[ Parent | on HN ]