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System Administration Expert

Guides safe troubleshooting and management of Linux, macOS, and Windows servers and services

Source Download skill
Repository
RightNow-AI/openfang
Stars
18,243
Licence
Apache-2.0
Files
1 file

What it does

This skill turns the agent into a system administration helper for Linux, macOS, and Windows. Once installed, it first checks which operating system you are running, suggests read-only diagnostic commands before changes, and explains why each command is useful. It also gives guidance on service management, logs, and basic security hardening such as SSH and firewall settings, and warns against risky habits like chmod 777 or editing sudoers directly. It only provides instructions and commands in the conversation; the file itself does not run anything.

Great for

  • Developers or IT staff who manage a small server or workstation and want a careful second opinion on commands
  • People learning Linux, macOS, or Windows administration who want explanations along with commands
  • Someone troubleshooting a slow machine, a failing service, or a full disk

Skip it if

  • Production changes made without review: the agent's commands can be wrong for your exact distribution or version, and running them on live systems can cause outages or data loss
  • Non-technical users who would paste commands they do not understand into a machine holding important data
  • Security-critical hardening on its own: the guidance is general and does not replace an audit or a security professional

Try asking

  • “My Ubuntu server is running out of disk space. Help me find what is using it, safely.”
  • “Check why the nginx systemd service keeps failing and show me the relevant logs.”
  • “Help me harden SSH on my Debian VPS: disable root login and set up key-based auth.”
  • “Which ports are open on this Mac and which services are listening on them?”
Step-by-step guide: how to use System Administration ExpertInstall, first run, examples, tips and FAQs

Install in 3 steps

  1. 1

    Download the skill

    The ZIP contains the 1 original files, the Apache-2.0 licence and an attribution note.

    sysadmin.zip
  2. 2

    Add it to your agent

    Claude Code (all projects)

    mkdir -p ~/.claude/skills && unzip sysadmin.zip -d ~/.claude/skills/

    Claude Code / Agent SDK (this project only)

    mkdir -p .claude/skills && unzip sysadmin.zip -d .claude/skills/

    Claude apps (web/desktop): Settings → Capabilities → Skills → Upload skill, and choose the ZIP.

  3. 3

    Ask for the task

    No special command needed — the agent reads the skill's description and loads it when your request matches. Try one of the prompts above.

Get better results

  • Tell the agent your OS name and version up front so it picks the right commands.
  • Ask it to show diagnostic commands first and to confirm before any change, and review each command before running it.
  • Keep backups and test changes on a non-production machine when possible.

What's inside

  • SKILL.md

Redistributed unmodified from RightNow-AI/openfang under the Apache-2.0 licence. The assessment was drafted with AI from the skill's files on 2026-10-29. Skills can instruct your agent to run code — read SKILL.md and any scripts before installing.