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.
npx skills add HermeticOrmus/linux-sysadmin-skills --skill sysadmin-maintaingit clone --depth 1 https://github.com/HermeticOrmus/linux-sysadmin-skillsWrote 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.
[](https://agentmods.dev/skills/hermeticormus/linux-sysadmin-skills/sysadmin-maintain)<a href="https://agentmods.dev/skills/hermeticormus/linux-sysadmin-skills/sysadmin-maintain"><img src="https://agentmods.dev/badge/skills/hermeticormus/linux-sysadmin-skills/sysadmin-maintain/github.svg" alt="Measured on agentmods" height="20"></a>Or the 80×15 button, for a site that already has a row of RSS and ATOM ones. Only the verdict fits; the numbers stay here.
<a href="https://agentmods.dev/skills/hermeticormus/linux-sysadmin-skills/sysadmin-maintain"><img src="https://agentmods.dev/badge/skills/hermeticormus/linux-sysadmin-skills/sysadmin-maintain.svg" alt="Reviewed on agentmods" width="80" height="20"></a>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.
| Model | Per session | Once invoked |
|---|---|---|
| Fable 5.1 | $0.00051 | $0.00267 |
| Opus 5.5 | $0.00020 | $0.00107 |
| Sonnet 5.5 | $0.00010 | $0.00053 |
| Haiku 4.5 | $0.00005 | $0.00027 |
Grade A, and why
sysadmin-maintain scanned grade A with 0 findings 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 1mo 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.
Nothing flagged
None of the 26 patterns this scan looks for appear in this file: no shell pipes, no recursive deletes, no credential paths, no hidden text, no instruction-override or anti-refusal phrasing, no agent-config snooping. That is not a guarantee, it is the absence of the things that are checkable.
What it actually says
System maintenance
Perform routine maintenance on a Debian/Ubuntu Linux machine. Run each step carefully and report findings. Ask before any potentially destructive operation.
Maintenance checklist
- Updates: check and install updates (
apt update && apt upgrade). - Cleanup: remove unused packages (
apt autoremove). - Cache: clean the package cache if needed (
apt clean). - Logs: check system logs for issues (
journalctl -p 3 -b). - Disk space: check disk usage (
df -h). - Services: verify critical services are running (
systemctl is-active <service>). - Security: check for security updates.
- Backup: verify backup systems are working and have a recent successful run.
Run each step carefully and report findings. Ask before performing potentially destructive operations such as package removal, cache clearing, or anything that deletes or replaces files.
See full content at https://github.com/HermeticOrmus/linux-sysadmin-skills.
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.
- 1mo ago First seen · 27 lines · 51 tokens per session scan A 9154c94edd84
sysadmin-maintain is a skill published in the GitHub repository HermeticOrmus/linux-sysadmin-skills (6 stars, last pushed 4mo ago), licensed MIT. It adds 51 tokens to every session and 267 once invoked, about $0.0002 per session on Opus 5.5. A static security scan graded it A with 0 findings. No closer match exists in the catalogue, so it is treated as the original; first seen 2026-08-31.
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