control-os

control-os is a skill for Claude Code, Codex from 88plug/os-control-mcp. It costs 194 tokens per session (1,040 once invoked), scanned B, original, no licence file.

A skill for controlling and inspecting a local Linux computer through system services, system logs, user sessions, and inter-process communication. It uses os-control MCP tools to work with the machine itself rather than files or graphical applications.

In plain words
What is it for?
Use it to start, stop, restart, or enable services; check whether they are running; investigate crashes; and inspect system logs.
Why use it?
It gives an agent a defined way to diagnose machine problems and manage services. This is useful when a service has stopped, crashed, or needs its logs checked.

Skill for Claude CodeCodex

Part of the os-control-mcp plugin — 2 skills 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/88plug/os-control-mcp/control-os
Any agent
npx skills add 88plug/os-control-mcp --skill control-os
Clone the repo
git clone --depth 1 https://github.com/88plug/os-control-mcp

Made for: Claude Code, Codex.

Or install os-control-mcp, the plugin that ships this one along with the rest of its 2 skills.

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 control-os

README.md
[![agentmods](https://agentmods.dev/badge/skills/88plug/os-control-mcp/control-os.svg)](https://agentmods.dev/skills/88plug/os-control-mcp/control-os)
Your own site
<a href="https://agentmods.dev/skills/88plug/os-control-mcp/control-os"><img src="https://agentmods.dev/badge/skills/88plug/os-control-mcp/control-os.svg" alt="Measured on agentmods" height="20"></a>
Per session 194 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 1,040 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 $0.00194 $0.01040
Opus 5 $0.00097 $0.00520
Sonnet 5 $0.00039 $0.00208
Haiku 4.5 $0.00019 $0.00104

Measured 3d ago against content hash c6eca419e40c, method: parsed. Prices are Anthropic first-party input rates as of 2026-08-30, from the pricing page.

Security

Grade B, and why

control-os 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 3d 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.

Read-only tools work unprivileged. **System-scope mutations** (`os_service` on system units, `os_power`) need root or polkit — when not root the server tries `sudo -n`; if that's not set up it tells you plainly. Options:
skills/control-os/SKILL.md · 40 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. 3d ago First seen · 40 lines · 194 tokens per session scan B c6eca419e40c

Subscribe to this mod's changes

control-os is a skill published in the GitHub repository 88plug/os-control-mcp (0 stars, last pushed 1mo ago), with no licence file. It adds 194 tokens to every session and 1,040 once invoked, about $0.0010 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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