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Zenn (AI)Japan

Claude Code(Opus 5.5)で機能追加したら既存機能は壊れるか。ハーネスと対策プロンプトを比べた

October 5

検証に使ったアプリはこちらです。麻雀の牌をタップすると、点数と符の内訳が出ます。 https://fu-koro.com/mahjong-fu-calculator/ ! この記事は、note に書いた検証記を、Zenn 向けに技術寄りに書き直したものです。 AI で作ったアプリに機能を足したら、既存の機能は何か所壊れるのか。

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