Anthropic adds a rule for Claude prohibiting the cloning of existing games

Anthropic recently added a system prompt for the Claude model that prohibits replicating specific existing games, even if they are renamed or claimed to be original. This rule is encoded in a JSON file under the name "tengu_heron_brook" and was confirmed by XDA in the October 30 release of Claude Code version 2.1.314. "tengu_heron_brook" The longer the conversation, the higher the success rate for voice agents. We analyzed 469 agents running both voice and chat in production environments and found an interesting pattern: when conversations become complex, voice becomes the fastest path to solving problems. https://elevenlabs.