Reported by 2 outlets
The story so far
AI summary of the reporting below · Updated · How we work
Anthropic has implemented fresh restrictions in Claude Code to stop developers from recreating specific video games. Company employee Addy Osmani confirmed that two sentences were added to Claude Code's system prompt on Opus 5.5, explaining that using the assistant to infringe intellectual property violates Anthropic's usage policy. Osmani emphasized that users can still develop original titles, genre games, and projects using their own assets, though the company is actively iterating on the rules to balance enforcement. [1][2]
The guardrails appear focused on the pairing of Claude Code and Opus 5.5, leading some developers to report that the tool has begun rejecting reverse-engineering projects as well. According to Tom's Hardware, users attempting legitimate software checks or reverse-engineering tasks faced refusals that did not occur on older models like Opus 4.8. These tighter restrictions have sparked pushback from software creators as the company continues to limit sensitive cybersecurity capabilities through its Cyber Verification Program. [1][2]
Anthropic has updated Claude Code's system prompt to prevent the AI tool from being used to re-create existing video games, as reported by Tom's Hardware. Retro gaming is currently being overrun with AI-made decompilations, recompilations, and ports, but while Anthropic will still let people use Claude Code to make games, it doesn't want people to…
via The Verge
Anthropic employee confirms that Claude Code now has orders not to reproduce game IP — company "iterating to ensure [...] the right balance"
via Tom’s Hardware