Anthropic confirms new Claude Code restrictions to prevent game cloning and reverse engineering

Anthropic has confirmed the rollout of safety guardrails for Claude Code, restricting the model from cloning existing video games or performing reverse engineering tasks. Anthropic staff member Addy Osmani explained that the team added two sentences to the system prompt for Claude Code Opus 5.5, directing it to avoid replicating specific third-party games to prevent intellectual property infringement. He added that original game development remains unaffected, and the team is actively tuning the rules to balance user experience.