Is the System Admin skill free?

Yes. The skill itself is free from chaterm/terminal-skills. SkillProof publishes the install command and an independent test verdict at no cost.

How do I install System Admin?

Copy the install command from this page, run it in your terminal, and restart Claude Code. Skills live in ~/.claude/skills/ (global) or .claude/skills/ inside a project.

Can I use System Admin with Cursor, Copilot, Gemini CLI, Codex or other AI tools?

The SKILL.md format is native to Claude (Claude Code, Desktop, claude.ai). The instructions inside adapt to other assistants: Cursor rules, GitHub Copilot instructions, Windsurf rules, Custom GPTs, AGENTS.md for OpenAI Codex, and GEMINI.md for Google Gemini CLI — our conversion guides cover each, and the free converter on the tools page does the wrapping for you.

System Admin

Linux triage cheat sheet: load, memory, disk, systemd services, top offenders

by chaterm · chaterm/terminal-skills

Tested · Didn't pass

Read why it failed Download source ↗

Test report

Verdict: Tested · Didn't pass
Tested: Aug 5, 2026
Environment: Claude Code 2.x (agent harness)

⚠ This skill is no longer available upstream. Our re-check on Aug 10, 2026 couldn't find it any more (repo unreachable/deleted). The test below is what we measured on Aug 5, 2026 and we're leaving it up as a record — but there is nothing left to install, so we've removed the command.

Wrote a high-load triage script twice, once following the skill and once with no skill, then diffed the coverage. The no-skill baseline reached ten diagnostic signals the skill never mentions, including journalctl OOM-kill hunting, inode exhaustion via df -i, PSI pressure counters, cgroup limits, D-state processes and socket saturation; what the skill adds back is inventory (lscpu, lsblk, os-release) and tool names (htop, iotop, sar) rather than any guidance on which to reach for. It also lists eight unbounded interactive commands with zero availability guards: the literal `top` from its body was still running when a six-second watchdog killed it, while the batch form returned in one second. The repo's own quick-start clones github.com/your-username/terminal-skills, which 404s, and copies into ~/.claude/skills/ without creating it, so the command listed here is the corrected one that was actually run. Harmless and it installs cleanly, but it did not beat the no-skill answer and its command forms will hang an agent that runs them literally.

Scored on four weighted criteria — install, triggering, output vs. baseline, docs. How scoring works

Installs cleanly 5/5
Triggers reliably 4/5
Output vs. baseline 4/10
Docs & honesty 3/5

What System Admin does

A short Linux reference bundled with 62 sibling terminal skills: system and hardware inventory, real-time resource monitoring tools, systemd service control, and two canned scenarios covering a health check and high-load triage. Triggers on Linux server administration, monitoring and service-status questions. Everything in it is read-only diagnostics; there are no scripts or executables in the skill.

How to install System Admin

Nothing to install: the source repository no longer has this skill. If the author brings it back, our daily re-check will pick it up and the command will reappear here.

Commands — how to trigger System Admin

/system-admin Linux triage cheat sheet: load, memory, disk, systemd services, top offenders

It also activates on plain-language prompts like these:

The server is running hot, find out what is eating CPU
How do I check disk usage and failed services on this Linux box
Check systemd status for nginx and diagnose the high load

Frequently asked questions

Is the System Admin skill free?: Yes. The skill itself is free from chaterm/terminal-skills. SkillProof publishes the install command and an independent test verdict at no cost.
Does System Admin work with Claude Code?: We tested it with Claude Code 2.x (agent harness) on Aug 5, 2026. Verdict: Tested · Didn't pass. Wrote a high-load triage script twice, once following the skill and once with no skill, then diffed the coverage. The no-skill baseline reached ten diagnostic signals the skill never mentions, including journalctl OOM-kill hunting, inode exhaustion via df -i, PSI pressure counters, cgroup limits, D-state processes and socket saturation; what the skill adds back is inventory (lscpu, lsblk, os-release) and tool names (htop, iotop, sar) rather than any guidance on which to reach for. It also lists eight unbounded interactive commands with zero availability guards: the literal `top` from its body was still running when a six-second watchdog killed it, while the batch form returned in one second. The repo's own quick-start clones github.com/your-username/terminal-skills, which 404s, and copies into ~/.claude/skills/ without creating it, so the command listed here is the corrected one that was actually run. Harmless and it installs cleanly, but it did not beat the no-skill answer and its command forms will hang an agent that runs them literally.
How do I install System Admin?: Copy the install command from this page, run it in your terminal, and restart Claude Code. Skills live in ~/.claude/skills/ (global) or .claude/skills/ inside a project.
Can I use System Admin with Cursor, Copilot, Gemini CLI, Codex or other AI tools?: The SKILL.md format is native to Claude (Claude Code, Desktop, claude.ai). The instructions inside adapt to other assistants: Cursor rules, GitHub Copilot instructions, Windsurf rules, Custom GPTs, AGENTS.md for OpenAI Codex, and GEMINI.md for Google Gemini CLI — our conversion guides cover each, and the free converter on the tools page does the wrapping for you.