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Anthropic Was Caught Shrinking Claude Code's Effort Scale Server-Side Without a Changelog Entry
A Hacker News thread reaching 196 points and 175 comments on Aug 22 documented Anthropic enrolling Fable 5 sessions on Claude Code 2.1.236 and later into a server-side experiment that compresses the effort scale, leaving older client versions and Opus 5 alone. The reporter found the model reading 'high' as 10 out of 100, the value 'low' previously used, with nothing in the changelog. For anyone whose pipeline depends on a fixed effort setting, this is the concrete risk of a subscription dev tool: the unit you bought can be redefined server-side between runs.
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