Anthropic may have forgotten to read their GitHub...

TL;DR — four prompts, four answers This entire investigation was four prompts I gave Claude (claude.ai, Sonnet 4.6) in Japanese. Here's the short version: 🇯🇵 Anthropic の claude code のリポジトリの Issue を巡回する公式 bot について質問させてください。Duplicated の検出や自動 Close について、いつからか止まっていませんか？ 🇬🇧 "Has the duplicate detection bot in the Claude Code repo stopped working at some point?" → Yes. It went silent around January 27, 2026 and stayed down until ~April 1. 🇯🇵 その前後の Claude Code のバージョンと、大きな構造的な変化はありますか？ 🇬🇧 "Were there an