Linux

Debugs and hardens Linux hosts: permissions, disk full, OOM kills, stuck processes, systemd units, cron, networking, SSH, and boot failures. Use when a service starts by hand but fails at boot, a process ignores kill -9, df and du disagree, a box runs out of memory or inodes, sudo or ACLs deny access, SELinux blocks a write, a job works in the shell but not in cron, sshd rejects a key, an upgrade leaves packages half-configured, load is high while the CPU sits idle, or a host needs firewall rules, users, LVM, journald, kernel tuning, or a security baseline. Also for setting up a fresh server, deciding what to alert on, backups whose restore has never been tested, a host that may be compromised, and desktop or laptop trouble — GPU drivers, Wayland, suspend, audio, Wi-Fi. Covers Debian/Ubuntu, RHEL/Fedora, Arch, Alpine, SUSE and WSL. Not for shell-script syntax (bash) or container build and runtime internals (docker).

Install only if you want an agent to keep local operational notes about your Linux hosts and to assist with powerful admin workflows. Review destructive, remote-access, storage, account, and firewall changes before allowing them, and treat the flagged chown guidance as needing correction in a future update.