EDITOR environment variable doesn't work with paths containing spaces on Windows

Description

On Windows, setting the EDITOR environment variable to a path containing spaces (e.g., C:\Program Files\Notepad++\notepad++.exe) does not work. The /memory command reports it is using the correct editor but fails to launch it.

Steps to Reproduce

1. On Windows, set EDITOR in ~/.claude/settings.json:

``json
"env": {
"EDITOR": "C:\Program Files\Notepad++\notepad++.exe"
}
``

1. Restart Claude Code
2. Run /memory
3. Output shows Using $EDITOR="C:/Program Files/Notepad++/notepad++.exe" but the editor does not open

Expected Behavior

The editor should launch with the memory file.

Actual Behavior

The editor is not launched. No error message is shown.

Workaround

Create a wrapper batch file without spaces in the path:

C:\Users\<username>\bin\npp.cmd:

@echo off
"C:\Program Files\Notepad++\notepad++.exe" %*

Then set EDITOR to the wrapper path:

"EDITOR": "C:\Users\<username>\bin\npp.cmd"

Environment

• Windows 10 Enterprise 10.0.19045
• Claude Code (latest)
• Shell: Git Bash

Notes

This appears to be a quoting issue when Claude Code invokes the editor. The path should be properly quoted to handle spaces.