linux-sysadmin

linux-sysadmin is a skill for Claude Code, Codex from j2h4u/oh-my-claude-plugins. It costs 109 tokens per session (1,781 once invoked), scanned B, original, no licence file.

A guide for administering Linux systems, including Debian and Ubuntu. It covers services, scheduled tasks, system settings, permissions, and logs.

In plain words
What is it for?
It is for configuring cron jobs, systemd services and timers, sudo rules, sysctl settings, logging with journald, and related system configuration.
Why use it?
It helps apply common server configuration changes in the right places and with the expected Linux tools.

Skill for Claude CodeCodex

Part of the devops plugin — 1 skill shipped together

Install

Getting it into your agent

One page per mod, every tool's command on it. A separate URL per tool would split the same page into five that compete with each other.

agentmods
npx agentmods add skills/j2h4u/oh-my-claude-plugins/linux-sysadmin
Any agent
npx skills add j2h4u/oh-my-claude-plugins --skill linux-sysadmin
Clone the repo
git clone --depth 1 https://github.com/j2h4u/oh-my-claude-plugins

Made for: Claude Code, Codex.

Or install devops, the plugin that ships this one along with the rest of its 1 skill.

Wrote this? Show the measurements

A badge with what this costs and how it scanned, read live from this page, so it follows the numbers instead of freezing them. Markdown for a README, HTML for a documentation site or a project page.

agentmods badge for linux-sysadmin

README.md
[![agentmods](https://agentmods.dev/badge/skills/j2h4u/oh-my-claude-plugins/linux-sysadmin.svg)](https://agentmods.dev/skills/j2h4u/oh-my-claude-plugins/linux-sysadmin)
Your own site
<a href="https://agentmods.dev/skills/j2h4u/oh-my-claude-plugins/linux-sysadmin"><img src="https://agentmods.dev/badge/skills/j2h4u/oh-my-claude-plugins/linux-sysadmin.svg" alt="Measured on agentmods" height="20"></a>
Per session 109 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 1,781 The whole file, excluding the scripts and references it only reads on demand.
Security scan B 1 finding. Scan, not verified.
Origin unknown No closer match found in the catalogue.
Token cost

What it costs to keep this loaded

Counted locally with the o200k_base tokenizer, which is exact for GPT models; Claude uses its own tokenizer and its counts differ. Treat this as one consistent yardstick across the catalogue rather than a bill. Prices are per million input tokens.

ModelPer sessionOnce invoked
Fable 5 $0.00109 $0.01781
Opus 5 $0.00055 $0.00890
Sonnet 5 $0.00022 $0.00356
Haiku 4.5 $0.00011 $0.00178

Measured 4d ago against content hash cbc1cb3fedf8, method: parsed. Prices are Anthropic first-party input rates as of 2026-08-30, from the pricing page.

Security

Grade B, and why

linux-sysadmin scanned grade B with 1 finding against 26 rules in 11 categories — prompt injection, anti-refusal, data exfiltration, privilege escalation, supply chain, agent snooping, system-prompt leakage, SSRF and excessive agency — measured 4d ago.

A static scan of the body, not an audit. Every finding is printed with the line that produced it so you can judge whether it matters here. A mod is markdown that instructs an agent; that is exactly why what it instructs is worth reading.

Asks for rootmediumPrivilege escalation

A mod that escalates privileges can change anything on the machine, not only the project.

sudo systemctl edit docker.service
devops/skills/linux-sysadmin/SKILL.md · 195 lines

The source is not reproduced here

No licence file

A repository with no LICENSE is all rights reserved by default, so the body is not copied here. The metadata, the measurements and the link are.

Read it on GitHub

Changes

What this file has done since we first saw it

Hashed on every crawl. A supply-chain change to an agent config is a question of when, not whether, so the history is kept rather than the latest state alone.

  1. 4d ago First seen · 195 lines · 109 tokens per session scan B cbc1cb3fedf8

Subscribe to this mod's changes

linux-sysadmin is a skill published in the GitHub repository j2h4u/oh-my-claude-plugins (2 stars, last pushed 2mo ago), with no licence file. It adds 109 tokens to every session and 1,781 once invoked, about $0.0005 per session on Opus 5. A static security scan graded it B with 1 finding (asks for root). No closer match exists in the catalogue, so it is treated as the original; first seen 2026-08-31.

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