anthropics / anthropics/claude-code

[BUG] 日本語IME入力時のプロンプトの遅延により、誤入力・文字欠落が頻発する

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area:a11y area:tui bug platform:windows
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Descrição

### Preflight Checklist

- [x] I have searched [existing issues](https://github.com/anthropics/claude-code/issues?q=is%3Aissue%20state%3Aopen%20label%3Abug) and this hasn't been reported yet
- [x] This is a single bug report (please file separate reports for different bugs)
- [x] I am using the latest version of Claude Code

### What's Wrong?

プロンプト入力欄で日本語IME(ローマ字入力からのかな漢字変換)を使用すると、入力処理がキー入力に追いつかず遅延することがあります。その結果、文字の欠落・重複・順序の入れ替わりが頻発し、誤入力として手動修正が必要になります。

### What Should Happen?

入力・変換した文字が、遅延による欠落や文字化けなくそのまま正確に表示されるべきです。

### Error Messages/Logs

```shell
該当するエラーがなければ「特になし」でOK
```

### Steps to Reproduce

1. Windows上のターミナルで日本語IMEを有効にした状態でClaude Codeを起動する
2. 通常の入力速度で日本語の文章を入力する(スペースで変換、Enterで確定を含む)
3. プロンプト入力欄に表示された結果を確認する
- インターフェース: Visual Studio 2026 の統合ターミナルパネル(Developer PowerShell)内で実行
-
### Claude Model

None

### Is this a regression?

Yes, this worked in a previous version

### Last Working Version

_No response_

### Claude Code Version

- Claude Code バージョン: v2.1.268

### Platform

Anthropic API

### Operating System

Windows

### Terminal/Shell

Windows Terminal

### Additional Information

_No response_

Guia de contribuição

Nenhum guia de contribuição indexado para este repositório

Direção de pesquisa

Start by reproducing the regression in the prompt input field using Japanese IME on Windows Terminal inside Visual Studio 2026's Developer PowerShell, including conversion with Space and confirmation with Enter. Use Claude Code v2.1.268 and verify that normally typed and converted Japanese appears without missing, duplicated, reordered, or garbled characters.

Escrita pelo modelo de indexação a partir do texto da issue.

Avaliação

Stack de tecnologia
powershell
Domínio
cli, internationalization, operating-systems
Tipo de issue
Bug
Dificuldade
4/5
Tempo estimado
3-5 dias
Status de atividade
Ativa
Clareza
Razoavelmente clara
Facilidade para iniciantes
45/100

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