system-check

A command that checks the health of a Mac and a remote server. It reports on running processes, connected services, scheduled jobs, storage, memory, browser cookies, and heartbeat signals.

In plain words
What is it for?
Use it for a broad status check when diagnosing a Mac or VPS, including processes, MCP servers, cron jobs, disk space, memory, cookies, and heartbeat status.
Why use it?
It gathers routine system checks in one place instead of requiring separate commands and manual inspection. The input does not explain how it fixes problems.

Command

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 commands/nardovibecoding/simply-ops-guard/system-check
Clone the repo
git clone --depth 1 https://github.com/nardovibecoding/simply-ops-guard
Per session 33 Only the description is in the session, so the agent can decide to use it. The body loads when it is invoked.
When invoked 343 The whole file, excluding the scripts and references it only reads on demand.
Security scan A 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 $0.00033 $0.00343
Opus 5 $0.00016 $0.00171
Sonnet 5 $0.00007 $0.00069
Haiku 4.5 $0.00003 $0.00034

Measured yesterday against content hash 5d794fe63679, method: parsed. Prices are Anthropic first-party input rates as of 2026-08-30, from the pricing page.

Security

Grade A, and why

system-check 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 yesterday.

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.

Makes network callslowCapability

Not a fault in itself. Listed so you know the mod talks to something, and to what.

3. **MCP health**: curl health endpoints on configured MCP service ports
commands/system-check.md · 30 lines

The source is not reproduced here

Licensed AGPL-3.0

The repository is licensed AGPL-3.0, which this catalogue does not treat as permission to reproduce the file. Read it at the source.

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. yesterday First seen · 30 lines · 33 tokens per session scan A 5d794fe63679

Subscribe to this mod's changes

system-check is a command published in the GitHub repository nardovibecoding/simply-ops-guard (1 stars, last pushed 4mo ago), licensed AGPL-3.0. It adds 33 tokens to every session and 343 once invoked, about $0.0002 per session on Opus 5. A static security scan graded it A with 1 finding (makes network calls). No closer match exists in the catalogue, so it is treated as the original; first seen 2026-08-31.