[BUG]

Preflight Checklist

• [x] I have searched existing issues 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?

任务中修改代码含有中文，直接Claude code异常退出了，重新进入继续执行一样会异常退出

What Should Happen?

任务能正常修改代码含有中文

Error Messages/Logs

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  ⏵⏵ accept edits on (shift+tab to cycle)

thread '<unnamed>' (559937) panicked at /rustc/ed61e7d7e242494fb7057f2657300d9e77bb4fcb/library/core/src/str/mod.rs:833:21:
byte index 50 is not a char boundary; it is inside '歌' (bytes 48..51) of `失败，标记为失败并继续处理下一首歌（CDN下载，download_source=2）`
note: run with `RUST_BACKTRACE=1` environment variable to display a backtrace
fatal runtime error: failed to initiate panic, error 5, aborting
zsh: abort      claude

Steps to Reproduce

正常执行代码修改任务，代码中有中文注释就会出现

Claude Model

Opus

Is this a regression?

Yes, this worked in a previous version

Last Working Version

Claude Code v2.0.71

Claude Code Version

Claude Code v2.0.71

Platform

Anthropic API

Operating System

macOS

Terminal/Shell

Terminal.app (macOS)

Additional Information

_No response_