[BUG] Run shell command failed in bash mode , shell-snapshot change behavior of some common command like "cd"

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?

When I try to run shell commands in bash mode, the execution results of some commands don't match my expectations. For example, even the basic cd command is throwing errors.

<img width="946" height="398" alt="Image" src="https://github.com/user-attachments/assets/a60054e5-febf-4a8e-8e50-d118e2080cc3" />

When I checked the files in the shell-snapshot, I found that cd had been reimplemented.

<img width="2458" height="2352" alt="Image" src="https://github.com/user-attachments/assets/19331e6d-8236-466c-af6a-7067bb7065cf" />
Therefore, I guess the issue is most likely related to shell initialization, but I can't find any offcial documentation or issues related to shell-snapshot for reference.

What Should Happen?

the command execution to behave the same as when run normally in zsh.

Error Messages/Logs

Steps to Reproduce

As long as my default $SHELL is zsh, the issue persists, including unexpected behavior when using gvm.

Claude Model

None

Is this a regression?

I don't know

Last Working Version

_No response_

Claude Code Version

1.0.128

Platform

Anthropic API

Operating System

macOS

Terminal/Shell

Terminal.app (macOS)

Additional Information

_No response_