2 November 2026
Anthropic adds rules to stop Claude Code cloning specific games
First reported
Tom's Hardware ran this on , 2 days before the next source picked it up.
- Anthropic, the company behind the Claude AI assistant, added instructions to its Claude Code tool to stop it recreating specific existing video games.
- Developers also report that the Opus 5.5 model refuses reverse-engineering tasks, such as analysing software, that worked until October 31.
- Anthropic has not published the exact wording of the new rules, and the restrictions appear limited to Claude Code paired with Opus 5.5.
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Reported by Tom's Hardware, Tom's Hardware