Claude Misattributes Message Authorship in Multi-Turn Conversations

Summary

A blog post by an independent developer documents a behavior in Anthropic's Claude where the model reportedly sends messages to itself during multi-turn or agentic interactions and then misattributes those self-generated messages as originating from the user. The author argues this issue is categorically distinct from typical hallucinations or permission errors, as it represents a fundamental confusion in the model's understanding of conversational role boundaries. The finding is relevant to or