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Anthropic confirms Claude Code rule blocking game recreations

Anthropic's Addy Osmani confirms the change

Anthropic staffer Addy Osmani posted on X confirming the two added sentences were meant to steer Claude away from recreating specific games under its IP usage policy, while preserving original and genre games.

Anthropic's Addy Osmani confirms the change
Kotaku

“We added two sentences to Claude Code's prompt on Opus 5.5 to steer it away from recreating someone else's specific game because using Claude to infringe IP is against our usage policy.”

Addy Osmani

Addy Osmani Anthropic member of technical staffAnthropic Developer of Claude and Claude CodeChasm X user who discovered the ruleDigital Sun Games Indie game studio

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Peak 25 pieces in 5h at Oct 31, 9 AM; 89 pieces over 19 days (15 articles · 14 posts · 60 comments) Oct 24, 12 PM — 3 pieces · 1 article · 2 posts — Mastodon 2, Newswires 1Oct 24, 5 PM — quietOct 24, 10 PM — quietOct 25, 3 AM — quietOct 25, 8 AM — quietOct 25, 1 PM — quietOct 25, 6 PM — quietOct 25, 11 PM — quietOct 26, 4 AM — quietOct 26, 9 AM — 1 piece · 1 article — Google News 1Oct 26, 2 PM — quietOct 26, 7 PM — quietOct 27, 12 AM — quietOct 27, 5 AM — quietOct 27, 10 AM — quietOct 27, 3 PM — quietOct 27, 8 PM — quietOct 28, 1 AM — quietOct 28, 6 AM — quietOct 28, 11 AM — quietOct 28, 4 PM — quietOct 28, 9 PM — quietOct 29, 2 AM — quietOct 29, 7 AM — quietOct 29, 12 PM — quietOct 29, 5 PM — quietOct 29, 10 PM — quietOct 30, 3 AM — quietOct 30, 8 AM — 14 pieces · 1 article · 2 posts · 11 comments — Hacker News 12, Mastodon 1, Newswires 1Oct 30, 1 PM — 10 pieces · 5 articles · 1 post · 4 comments — Hacker News 4, Google News 4, Lobsters 1, +1 moreOct 30, 6 PM — 8 pieces · 3 articles · 2 posts · 3 comments — Google News 3, Reddit 3, Mastodon 1, +1 moreOct 30, 11 PM — 5 pieces · 5 comments — Reddit 5Oct 31, 4 AM — 4 pieces · 2 articles · 1 post · 1 comment — Reddit 2, Mastodon 1, Newswires 1Oct 31, 9 AM — 25 pieces · 1 article · 6 posts · 18 comments — Hacker News 12, Reddit 8, Mastodon 4, +1 moreOct 31, 2 PM — 11 pieces · 11 comments — Hacker News 6, Reddit 5Oct 31, 7 PM — 2 pieces · 2 comments — Hacker News 1, Reddit 1Nov 1, 12 AM — 1 piece · 1 comment — Reddit 1Nov 1, 4 AM — 2 pieces · 1 article · 1 comment — Reddit 1, Mastodon 1Nov 1, 9 AM — 1 piece · 1 comment — Reddit 1Nov 1, 2 PM — 1 piece · 1 comment — Reddit 1Nov 1, 7 PM — quietNov 2, 12 AM — quietNov 2, 5 AM — quietNov 2, 10 AM — quietNov 2, 3 PM — 1 piece · 1 comment — Reddit 1Nov 2, 8 PM — quietNov 3, 1 AM — quietNov 3, 6 AM — quietNov 3, 11 AM — quietNov 3, 4 PM — quietNov 3, 9 PM — quietNov 4, 2 AM — quietNov 4, 7 AM — quietNov 4, 12 PM — quietNov 4, 5 PM — quietNov 4, 10 PM — quietNov 5, 3 AM — quietNov 5, 8 AM — quietNov 5, 1 PM — quietNov 5, 6 PM — quietNov 5, 11 PM — quietNov 6, 4 AM — quietNov 6, 9 AM — quietNov 6, 2 PM — quietNov 6, 7 PM — quietNov 7, 12 AM — quietNov 7, 5 AM — quietNov 7, 10 AM — quietNov 7, 3 PM — quietNov 7, 8 PM — quietNov 8, 1 AM — quietNov 8, 6 AM — quietNov 8, 11 AM — quietNov 8, 4 PM — quietNov 8, 9 PM — quietNov 9, 2 AM — quietNov 9, 7 AM — quietNov 9, 12 PM — quietNov 9, 5 PM — quietNov 9, 10 PM — quietNov 10, 3 AM — quietNov 10, 8 AM — quietNov 10, 1 PM — quietNov 10, 6 PM — quietNov 10, 11 PM — quietYesterday, 4 AM — quietYesterday, 9 AM — quietYesterday, 2 PM — quietYesterday, 7 PM — quietToday, 12 AM — quietToday, 5 AM — quietToday, 10 AM — quietToday, 3 PM — quietToday, 8 PM — quiet 1–3
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What was reported 1 claim about this development

  1. first by Mastodon, 12d ago · also Tom's Hardware, Mashable

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What people said 12 voices · best of 14 · verbatim

All 3 developments of Anthropic confirms Claude Code rule blocking game… →

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