“Anthropic adds rule to stop Claude Code recreating existing games”

Key points

• Anthropic updated Claude Code to stop cloning existing games.
• Rule added to steer toward original, genre, or user-owned designs.
• Change spotted October 27 and named internally as tengu_heron_brook.
• Two sentences added to Claude Code's prompt to deter IP infringement.
• Industry concerns grow over AI tools cloning unreleased or existing games.