[Bug] Claude ignores CLAUDE.md language rule and responds in Ukrainian despite English input

Resolved 💬 2 comments Opened May 31, 2026 by andrew-kuzmin Closed Jun 3, 2026

Bug Description
Claude responded in Ukrainian even though I wrote in English from the start. The CLAUDE.md rule is clear: respond in Ukrainian only if the user doesn't write in English. This was a straightforward failure to follow an explicit instruction.

Environment Info

  • Platform: darwin
  • Terminal: Apple_Terminal
  • Version: 2.1.154
  • Feedback ID: 85318c4c-2853-4c27-b93c-3773ca3f7272

Errors

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