@tank/macos-cleanup

MEDIUM W013: Attempt to modify system services in skill instructions.

• Attempt to modify system services in skill instructions detected (high risk: 0.80). The skill explicitly instructs destructive, state-changing operations (rm -rf on many system/user cache paths, docker system prune including volumes, and tmutil deletelocalsnapshots using a SUDO wrapper), including commands that require or encourage use of sudo and can irreversibly modify system state and user data.