Windows: Ctrl+G cannot launch code-insiders --wait #3733

Bug

On Windows, Ctrl+G cannot launch VS Code Insiders when $EDITOR is set to the standard wait command:

$env:EDITOR = 'code-insiders --wait'

The same command works directly from PowerShell.

Repro

$env:EDITOR = 'code-insiders --wait'
code-insiders --wait # works
copilot
# Press Ctrl+G

Expected

Copilot CLI opens VS Code Insiders and waits for the prompt file to close.

Actual

✗ Error: Editor 'code-insiders --wait' not found. Check your $COPILOT_EDITOR, $VISUAL, or $EDITOR environment variable.

Using a .cmd wrapper also fails with spawn EINVAL.

Notes

code-insiders resolves to a Windows .cmd shim, so this appears related to #1882. The fix is likely to handle Windows .cmd / .bat editor commands through cmd /c or shell: true, and to support editor commands with arguments such as --wait.

Environment

• Windows
• PowerShell
• Copilot CLI 1.0.60
• VS Code Insiders