Brew Audit

Audit Homebrew installation — outdated packages, cleanup opportunities, and health checks. Use when asked about brew updates, system maintenance, or package...

Homebrew Audit Skill

Quickly audit your Homebrew installation for outdated packages, cleanup opportunities, and health issues.

Usage

# Full audit (outdated + cleanup + doctor + summary)
bash scripts/brew-audit.sh

# Specific sections
bash scripts/brew-audit.sh --section outdated
bash scripts/brew-audit.sh --section cleanup
bash scripts/brew-audit.sh --section doctor

# JSON output (outdated only)
bash scripts/brew-audit.sh --json --section outdated

What It Checks

📦 Outdated Packages

Lists all formulae and casks with newer versions available, with current → available version info.

🧹 Cleanup Opportunities

Shows how many old versions/downloads can be removed and estimated disk savings. Run brew cleanup to reclaim.

🩺 Health Check

Runs brew doctor to detect:

• Formulae with no source (orphaned kegs)
• Deprecated/disabled packages needing replacement
• Permission issues, broken symlinks, config problems

📊 Summary

Total formulae, casks, and Homebrew prefix.

When to Use

• Periodic system maintenance (weekly/monthly)
• Before major upgrades
• When disk space is low
• After noticing build failures (doctor check)

Updating Packages

After reviewing the audit:

brew upgrade              # upgrade all outdated
brew upgrade <formula>    # upgrade specific package
brew cleanup              # remove old versions