mcquack

A simple macOS LaunchAgent manager for executable scripts.

Named after Launchpad McQuack, the fearless (if accident-prone) pilot from DuckTales.

Requirements

• macOS (uses launchctl and ~/Library/LaunchAgents)
• uv

Installation

No installation required! Run directly with:

uvx git+https://github.com/eblume/mcquack

Or clone and run the script directly (it's already executable).

Usage

# List all mcquack-managed LaunchAgents
mcquack list

# Create and load an executable as a LaunchAgent
mcquack create /path/to/your/script

# Create with additional arguments for the script
mcquack create /path/to/your/script -- --arg1 value1 --arg2

# Kickstart (immediately run) the LaunchAgent
mcquack launch /path/to/your/script

# Show the current arguments configured in the plist
mcquack show /path/to/your/script

# Edit the arguments in the plist
mcquack edit /path/to/your/script -- --new-arg1 --new-arg2

# Unload (stop) the LaunchAgent
mcquack unload /path/to/your/script

# Delete the LaunchAgent plist file
mcquack delete /path/to/your/script

How it works

mcquack creates plist files in ~/Library/LaunchAgents/ with the naming convention:

mcquack.eblume.<scriptname>.plist

The generated plist configures the script to:

• Run at load
• Keep alive (restart if it exits)
• Log stdout/stderr to ~/Library/Logs/mcquack.<scriptname>.{out,err}.log

License

MIT