[BUG] /install-github-app uses invalid flag `gh auth status -a`

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?

Description

The /install-github-app command fails with an invalid flag error when checking GitHub CLI authentication status.

<img width="509" height="449" alt="Image" src="https://github.com/user-attachments/assets/1b1fcd36-14a0-4e8f-8817-be35050414a9" />

## Environment

• OS: Linux
• gh version: (run gh --version to check)

## Suggested Fix

Replace gh auth status -a with gh auth status (no flags) or use a valid flag combination.

What Should Happen?

Expected Behavior

The command should use valid gh auth status flags. According to gh auth status --help, only these flags exist:

• -h, --hostname - Check a specific hostname's auth status
• -t, --show-token - Display the auth token

Error Messages/Logs

## Error

  unknown shorthand flag: 'a' in -a

  Usage:  gh auth status [flags]

Steps to Reproduce

Steps to Reproduce

1. Run /install-github-app in Claude Code

Claude Model

Opus

Is this a regression?

I don't know

Last Working Version

_No response_

Claude Code Version

2.0.76

Platform

Anthropic API

Operating System

Ubuntu/Debian Linux

Terminal/Shell

VS Code integrated terminal

Additional Information

_No response_