上周，Anthropic 推出一个新的系统提示，旨在阻止其Claude模式重新创建特定，已存在的电子游戏。 虽然这一举动有助于保护Anthropic免受某些责任的侵害，但不太可能减缓最近几个月出现的由AI辅助的游戏移植和复制的巨大浪潮。
一个社交媒体用户和AI的解密爱好者使用“casm”这个名字，是第一个注意到上星期后期迅速变化的人之一，他说，在10月27日左右，Claude Code的提示中似乎增加了一条新规则。 该规则载于一个名为 " tengu-heron-brook " 的json文件中，内容如下：
要从用户自己的设计和资产中构建原始游戏，游戏的流派以及游戏。 即使游戏被重新命名或称为原作
XDA后来独立地核实了新规则出现在Claude Code二进制的2.1.314版本中，10月30日是发布。 XDA还报告说，“tengu heron brook”规则曾在早期版本中用于其他目的，Claude Opus 5.5型号似乎有其独特的独立指示，限制游戏娱乐，作为其系统即时捆绑的一部分。
Anthropic软件工程师Addy Osmani在社交媒体上证实，在Claude Code对Opus 5.5的提示中增加了两句
他补充道，新快讯的设计仍然允许"原版游戏，流派游戏，以及由您自己的设计和资产所打造的游戏"，即使Anthropic的GitHub的少数问题报告也暗示新快讯正在阻碍一些游戏开发使用案例。
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Last week, Anthropic introduced a new system prompt designed to stop its Claude models from re-creating specific, existing video games. While that move could help shield Anthropic from some liability, it’s unlikely to slow much of the massive wave of AI-assisted game porting and copying that has emerged in recent months.
A social media user and AI decompilation enthusiast going by the name “chasm” was among the first to note the prompt change late last week, saying a new rule seemed to be added to the Claude Code prompt on or around October 27. That rule—included in a json file under the name “tengu_heron_brook”—reads as follows:
Do build original games, games in a genre, and games from the user’s own designs and assets. Don’t build a recreation of a specific existing game, even if it is renamed or called original.
XDA later independently verified that the new rule appears in version 2.1.314 of the Claude Code binary, which was released on October 30. XDA also reported that the “tengu_heron_brook” rule had been used for other purposes in earlier versions and that the Claude Opus 5.5 model specifically seemed to have its own distinct and independent instructions restricting game recreations as part of its system prompt bundle.
Following chasm’s initial report, Anthropic software engineer Addy Osmani confirmed on social media that the company had “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.”
He added that the new prompt was designed to still allow “original games, genre games, and games built from your own designs and assets,” even as a handful of issue reports on Anthropic’s GitHub suggest the new prompt is getting in the way of some game development use cases.
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