Does it help with Homebrew package management?

Yes, it covers the full Homebrew ecosystem including package installation, cask management, taps, and managing services via 'brew services'.

Can this skill help with macOS-specific system settings?

Yes, it specializes in using the 'defaults' command, plist management, and macOS security frameworks to automate system-level configuration and preferences.

Does it support shells other than Bash?

Absolutely. It provides expert guidance for Zsh (the modern macOS default) and POSIX-compliant shell scripts to ensure portability and robustness.

Is it safe to use for destructive system commands?

The skill follows a defensive approach, providing explicit warnings for risky operations and suggesting safer alternatives or dry-run options where appropriate.

Can it manage persistent background services?

Yes, it has deep expertise in launchd and launchctl for creating, loading, and managing background agents and daemons on macOS.

Unix & macOS Systems Engineer

Name: Unix & macOS Systems Engineer
Author: petekp

bypetekp

•

Productivity & Workflow

Streamlines macOS and Unix system administration through expert shell scripting, process management, and native tool configuration.

The Unix & macOS Systems Engineer skill empowers Claude with deep expertise in Apple-specific system architecture and standard POSIX environments. It specializes in writing robust, defensive shell scripts, managing system services via launchd, automating tasks with Homebrew, and troubleshooting complex networking or file system issues. Whether you are configuring macOS defaults, managing background daemons, or building portable command-line utilities, this skill ensures implementation follows best practices like error handling, security compliance, and the efficient use of native system tools.

Key Features

01Professional shell scripting in Bash, Zsh, and POSIX sh with defensive coding patterns

02Advanced macOS administration using native tools like launchd, plists, and the defaults system

03System-level troubleshooting for networking, file permissions (ACLs/APFS), and process management

04Comprehensive Homebrew management for packages, casks, and automated service orchestration

05Security-focused configuration including Keychain, codesigning, and Gatekeeper management

061 GitHub stars

Use Cases

01Automating repetitive macOS system configuration tasks using shell scripts and launchd agents

02Troubleshooting and optimizing command-line workflows with advanced tools like sed, awk, and jq

03Managing local development environments through Homebrew automation and network configuration

What are Skills?·How to Install

Install with 🐟 Skill.Fish

npx skillfish add petekp/agent-skills unix-macos-engineer

For use in Claude.ai and ChatGPT

Key Features

01Professional shell scripting in Bash, Zsh, and POSIX sh with defensive coding patterns

02Advanced macOS administration using native tools like launchd, plists, and the defaults system

03System-level troubleshooting for networking, file permissions (ACLs/APFS), and process management

04Comprehensive Homebrew management for packages, casks, and automated service orchestration

05Security-focused configuration including Keychain, codesigning, and Gatekeeper management

061 GitHub stars

Use Cases

01Automating repetitive macOS system configuration tasks using shell scripts and launchd agents

02Troubleshooting and optimizing command-line workflows with advanced tools like sed, awk, and jq

03Managing local development environments through Homebrew automation and network configuration