[BUG] Claude not able to launch shell in Windows

Environment

• Platform (select one):
• [ ] Anthropic API
• [ ] AWS Bedrock
• [ ] Google Vertex AI
• [X] Other: Claude Code
• Claude CLI version: 1.0.65
• Operating System: Windows 11
• Terminal: Wezterm running Git Bash

Bug Description

I launch Claude Code inside a Git Bash session with the SHELL variable set to the bash.exe in my Scoop shims folder. Claude Code is unable to find a suitable shell. Additionally, it doesn't work in VS Code either.

Steps to Reproduce

1. Run Git Bash and ensure SHELL environment variable is set
2. Run $SHELL to ensure that the environment variable is correct
3. Run claude code and ask it to echo something

Expected Behavior

To run commands within a shell

Actual Behavior

An error occurs: Error: No suitable shell found. Claude CLI requires a Posix shell environment. Please ensure you have a valid shell installed and the SHELL environment variable set.