[BUG] bash tool breaks when project directory is renamed mid-session

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?

Renaming the project directory mid-session breaks all Bash tool calls with "Path does not exist" error. Read, Write, Edit, Glob, and Grep tools still work fine with the new path - only Bash is affected.

What Should Happen?

Bash tool works with the new path, same as Read, Write, Edit, Glob, and Grep already do.

Error Messages/Logs

Steps to Reproduce

1. Start Claude Code from ~/project_a
2. Rename directory externally: mv ~/project_a ~/project_b
3. Any Bash command fails: "Path ~/project_a does not exist"

Claude Model

Claude Opus 4.6

Is this a regression?

I don't know

Last Working Version

_No response_

Claude Code Version

2.1.77

Platform

Anthropic API

Operating System

macOS

Terminal/Shell

Terminal.app (macOS)

Additional Information

_No response_