Configure and secure servers step by step using fixed scripts and templates rather than improvised commands. Use this skill whenever the user mentions server hardening, vps setup, ssh hardening, firewall rules, fail2ban, unattended upgrades, baseline configuration, or is working with Ubuntu, Ansible, ufw, even if they never say "vps infrastructure hardening" explicitly. Operates entirely on context the agent already has. Do not use it for unrelated application feature work or general coding questions.
