Agent skill · magnus919
remote-systems-administration
Administer and troubleshoot remote Linux, FreeBSD, NetBSD, OpenBSD, and macOS systems safely, one host or a fleet at a time. Use when a task requires SSH, Ansible, Paramiko, POSIX diagnostics, service management, software updates, system configuration, firewall changes, or evidence-led remote operations. Do not use for local-only desktop administration, container or cluster orchestration (route to kubernetes), or cloud consoles that expose no remote shell.
What it needs
About 5k tokens when loaded.
What this skill does
Remote Systems Administration Use this as an operating decision layer, not a bag of remote commands. Unix-like systems share a vocabulary but not an implementation. Identify the target's platform and active control plane before choosing a command. Operating contract 1. Discover before changing. Record target identity, production status, OS and release, service manager, package manager, firewall, access route, privilege path, and current state. Do not infer them from hostname, memory, or inventory labels. 2. Use the smallest valid control plane. Native SSH for a bounded one-host task; Ansible for repeatable desired state across a fleet; Paramiko only when a Python program genuinely needs SSH protocol control that the first two cannot provide. 3. Protect access first. Before changing SSH, routing, DNS, a firewall, privilege escalation, or a network interface, establish a tested rollback and a second recovery path. Keep the current session alive until the new path works. 4. Preview, constrain, verify. Limit the target set; use native validation, dry-run, diff, or a canary when available; then verify the affected service and its user-visible boundary. A zero exit code proves only that command ran. 5. Report evidence, not a story. Preserve bounded per-host results: target, command category, before/after evidence, failures, rollback state, and the remaining uncertainty. Never paste secrets, keys, full configuration files, or unbounded logs into the response. Run the shared classification probe in references/portable-operations.md, then load the matching OS/family overlay and run its command preflight. Select a mutation command only after the required preflight and safety gate. Read-only discovery handoff Use this compact format after a preflight. Fill a field only from observed evidence; otherwise write unknown or not supplied. …
How to use it
Reference it in AdaL, Claude Code, Cursor or any coding agent — nothing to install:
@skills magnus919/remote-systems-administration