What is system-operations?

A troubleshooting workflow for checking the health and resource use of a local computer and its gateway firewall.

Use it to inspect system information, CPU, memory, disk pressure, processes, services, host monitoring, and firewall status.

It starts with lightweight status checks and drills down only when symptoms or failures need more investigation.

system-operations — Skill by Threat-Vector-Security/guardian-agent

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.

Any agent

npx skills add Threat-Vector-Security/guardian-agent --skill system-operations

Clone the repo

git clone --depth 1 https://github.com/Threat-Vector-Security/guardian-agent

Made for: Claude Code, Codex.

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.

README.md

[![agentmods](https://agentmods.dev/badge/skills/threat-vector-security/guardian-agent/system-operations/github.svg)](https://agentmods.dev/skills/threat-vector-security/guardian-agent/system-operations)

Your own site

<a href="https://agentmods.dev/skills/threat-vector-security/guardian-agent/system-operations"><img src="https://agentmods.dev/badge/skills/threat-vector-security/guardian-agent/system-operations/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.

Your own site · 80×15

<a href="https://agentmods.dev/skills/threat-vector-security/guardian-agent/system-operations"><img src="https://agentmods.dev/badge/skills/threat-vector-security/guardian-agent/system-operations.svg" alt="Reviewed on agentmods" width="80" height="20"></a>

Per session 0 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.

When invoked 409 The whole file, excluding the scripts and references it only reads on demand.

Security scan A 0 findings. A grade says what 26 rules found in the file — not that it is safe.

Origin original 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.

Model	Per session	Once invoked
Fable 5.1	$0.00000	$0.00409
Opus 5.5	$0.00000	$0.00164
Sonnet 5.5	$0.00000	$0.00082
Haiku 4.5	$0.00000	$0.00041

Measured 1mo ago against content hash 54a04856f118, method: parsed. Prices are Anthropic first-party input rates as of 2026-10-07, from the pricing page.

Security

Grade A, and why

system-operations 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.

skills/system-operations/SKILL.md · 41 lines

What it actually says

System Operations

Use this when the user is troubleshooting the local machine, checking service health, or reviewing host and gateway monitoring state.

Workflow

Start with the lightest summary that answers the question.
- sys_info for OS and platform facts
- sys_resources for CPU, memory, and disk pressure
- host_monitor_status for current host monitoring posture
- gateway_firewall_status for gateway firewall posture
Drill down only where needed.
- sys_processes for resource-heavy or suspicious processes
- sys_services for service state and obvious failures
- host_monitor_check or gateway_firewall_check for a fresh posture check
Report symptoms first, then likely cause.
- what is healthy
- what is degraded
- what needs deeper investigation

Task Patterns

"My computer is slow" -> sys_resources, then sys_processes
"Is service X healthy?" -> sys_services
"What changed in host posture?" -> host_monitor_status or host_monitor_check
"Is the gateway firewall okay?" -> gateway_firewall_status or gateway_firewall_check

Boundaries

Use network-recon for host, subnet, DNS, or port diagnostics.
Use security-triage when the findings look security-relevant rather than purely operational.
Use host-firewall-defense when host-monitor, firewall drift, or gateway-alert interpretation is the main task.
Use native-av-management for Windows Defender or third-party antivirus coexistence questions.
Use automation-builder for recurring health checks.

Gotchas

Do not jump to root cause before establishing the current symptoms with host data.
Do not switch to network or security tooling when host-level tools already answer the question.
Do not treat a stale monitoring snapshot as current state if a fresh check is cheap and relevant.

Files

What ships with it

1 file 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.

skill.json 873 B

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.

1mo ago First seen · 41 lines · 0 tokens per session scan A 54a04856f118

Subscribe to this mod's changes

system-operations is a skill published in the GitHub repository Threat-Vector-Security/guardian-agent (13 stars, last pushed 1mo ago), licensed Apache-2.0. It costs nothing until one of its globs matches a file; then it loads 409 tokens. 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 2026-08-30.

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