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Claude Code Issues / #58848

Session titles generated in English despite language setting (Claude Code & Cowork)

Resolved 💬 3 comments Opened May 13, 2026 by mizotetsuai Closed May 17, 2026

Describe the bug
Session titles are auto-generated in English even when the language is configured to Japanese.

Environment

  • Claude Code v2.1.140
  • macOS
  • settings.json: "language": "japanese"
  • CLAUDE.md: Japanese language instruction set

Affected surfaces

  • Claude Code CLI session list
  • Claude Cowork (Mac desktop app) sidebar titles

Expected behavior
Session titles should be generated in the configured language (Japanese).

Related issues
#35799, #48778 (both locked)

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