Anthropic marketplace does not detect git on Windows despite git being installed

Description

On Windows 11, Claude Code v2.1.63 shows the following warning in the status bar:

Anthropic marketplace requires git · Install git and restart

However, git is properly installed and available in the system PATH.

Environment

• OS: Windows 11 Home 10.0.26200
• Claude Code version: v2.1.63
• Git version: 2.53.0.windows.1
• Shell: PowerShell / Git Bash

Git is installed and accessible

$ where git
C:\Program Files\Git\mingw64\bin\git.exe
C:\Program Files\Git\cmd\git.exe
C:\Program Files\Git\bin\git.exe

$ git --version
git version 2.53.0.windows.1

Steps to reproduce

1. Install Git for Windows (available in system PATH)
2. Install a skill via skills.sh (e.g. brand-guidelines) — this works fine
3. Launch Claude Code with cc
4. Observe the orange status bar message: "Anthropic marketplace requires git · Install git and restart"

Expected behavior

Claude Code should detect the existing git installation and not show the warning.

Actual behavior

The marketplace feature fails to detect git even though it is installed and accessible from both PowerShell and Git Bash.