Anthropic has quietly added a new instruction to its Claude Code AI assistant aimed at stopping it from being used to clone, reverse-engineer or decompile existing games. Spotted by users on Twitter/X, the rule, internally labelled "tengu_heron_brook" on line 2397, tells Claude to build original games, genre entries or designs based on a user's own assets, but not to recreate a specific existing game even under a different name. The change appears to be a direct response to growing use of AI coding tools for game cloning and decompilation projects.
Originally reported 2 November 2026. Read the full story with all the details on timeextension.com
