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 vikasudasi/skill-vault --skill systemd-service-unitsgit clone --depth 1 https://github.com/vikasudasi/skill-vaultWrote 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/vikasudasi/skill-vault/systemd-service-units)<a href="https://agentmods.dev/skills/vikasudasi/skill-vault/systemd-service-units"><img src="https://agentmods.dev/badge/skills/vikasudasi/skill-vault/systemd-service-units/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/vikasudasi/skill-vault/systemd-service-units"><img src="https://agentmods.dev/badge/skills/vikasudasi/skill-vault/systemd-service-units.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 | $0.00029 | $0.00492 |
| Opus 5 | $0.00015 | $0.00246 |
| Sonnet 5 | $0.00006 | $0.00098 |
| Haiku 4.5 | $0.00003 | $0.00049 |
Grade A, and why
systemd-service-units scanned grade A 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 9d 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 rootlowPrivilege escalation
A mod that escalates privileges can change anything on the machine, not only the project.
sudo systemctl daemon-reload Downgraded: this mod is about security review, or the phrase is quoted, so it is likely naming the pattern rather than instructing it.
What it actually says
Running Services with systemd
Use when a self-hosted process must start on boot and auto-restart on crash.
Unit file
[Unit]
Description=Skill Vault MCP server
After=network.target
[Service]
Type=simple
User=svc
WorkingDirectory=/opt/skill-vault
ExecStart=/opt/skill-vault/.venv/bin/skill-vault serve --transport streamable-http --host 127.0.0.1 --port 8000
Restart=on-failure
RestartSec=3
EnvironmentFile=/etc/skill-vault/svc.env
[Install]
WantedBy=multi-user.target
Manage it
sudo systemctl daemon-reload
sudo systemctl enable --now skill-vault-mcp
sudo systemctl status skill-vault-mcp
sudo journalctl -u skill-vault-mcp -f
Key options
Restart=on-failure+RestartSec— crash recovery without a watchdog.EnvironmentFile=— keep secrets in a mode-0600 env file, not the unit.User=/Group=— run as an unprivileged user; never run daemons as root.Type=simpleis right for a foreground process;Type=notify/Type=forkingfor daemons that signal readiness.
Pitfalls
- After editing a unit you MUST
systemctl daemon-reloador changes are ignored. - If systemd is degraded/broken on the host, ship a no-systemd fallback (a plain run script) too — don't depend on systemd being healthy.
- A service that exits immediately with
Restart=on-failurewill still be retried; checkjournalctlfor the real error.
What ships with it
2 files beside SKILL.md in the same directory: the scripts, references and assets a skill reads on demand. Not counted in the per-session cost; read them before you install if any of them is executable.
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.
- 9d ago First seen · 61 lines · 29 tokens per session scan A 2752e3eebd56
systemd-service-units is a skill published in the GitHub repository vikasudasi/skill-vault (0 stars, last pushed 24d ago), licensed Apache-2.0. It adds 29 tokens to every session and 492 once invoked, about $0.0001 per session on Opus 5. A static security scan graded it A 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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system-admin
System administration — manage services, processes, cron, systemd, networking. Use for any sysadmin task.
service-stale-code-after-upgrade
Use when service crashes with TypeError after code upgrades.
hunting-persistence-on-linux
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daemon-development
Build daemon/background processes that start on boot, run continuously, and manage their own lifecycle. Covers macOS launchd (plist files, agents vs daemons), Linux systemd (unit files), Windows services, process supervision, logging, health checks, graceful shutdown, auto-restart, and AI-powered daemons that manage…