Here’s a concise technical write-up on and its relevance on macOS, focusing on security, forensics, and system administration. Write-Up: Understanding pluginkit on macOS 1. Overview pluginkit is a command-line utility built into macOS (introduced around OS X 10.10 Yosemite) that manages plug-ins — bundles of code that extend the functionality of system frameworks and applications (e.g., Spotlight, Safari, QuickLook, Action extensions).