mac-it-guy

mac-it-guy is a skill for Claude Code, Codex from xiaolai/mac-it-guy-pro. It costs 104 tokens per session (1,220 once invoked), scanned A, original, MIT.

A Mac support skill for people who are not programmers. It provides workflows for diagnosis, disk cleanup, file organization, backups, Wi-Fi, home networks, repetitive chores, and explaining system changes.

In plain words
What is it for?
Getting guided help with Mac health checks, storage, backups, networking, automation, and understanding what happened on the computer.
Why use it?
It translates computer maintenance into plain language and uses safety rules such as diagnosing first and avoiding permanent deletion.

Skill for Claude CodeCodex

Part of the mac-it-guy-pro plugin — 8 skills, 12 commands, 4 agents, 2 hooks 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/xiaolai/mac-it-guy-pro/mac-it-guy
Any agent
npx skills add xiaolai/mac-it-guy-pro --skill mac-it-guy
Clone the repo
git clone --depth 1 https://github.com/xiaolai/mac-it-guy-pro

Made for: Claude Code, Codex.

Or install mac-it-guy-pro, the plugin that ships this one along with the rest of its 8 skills, 12 commands, 4 agents, 2 hooks.

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 mac-it-guy

README.md
[![agentmods](https://agentmods.dev/badge/skills/xiaolai/mac-it-guy-pro/mac-it-guy.svg)](https://agentmods.dev/skills/xiaolai/mac-it-guy-pro/mac-it-guy)
Your own site
<a href="https://agentmods.dev/skills/xiaolai/mac-it-guy-pro/mac-it-guy"><img src="https://agentmods.dev/badge/skills/xiaolai/mac-it-guy-pro/mac-it-guy.svg" alt="Measured on agentmods" height="20"></a>
Per session 104 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 1,220 The whole file, excluding the scripts and references it only reads on demand.
Security scan A 0 findings. Scan, not verified.
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.

ModelPer sessionOnce invoked
Fable 5 $0.00104 $0.01220
Opus 5 $0.00052 $0.00610
Sonnet 5 $0.00021 $0.00244
Haiku 4.5 $0.00010 $0.00122

Measured 5d ago against content hash f9b6728afdcc, method: parsed. Prices are Anthropic first-party input rates as of 2026-08-30, from the pricing page.

Security

Grade A, and why

mac-it-guy 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 5d 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.

codex/skills/mac-it-guy/SKILL.md · 71 lines

How it starts

The opening of the file, as written. The whole thing — 71 lines — stays where its author put it; the contents beside it link to each section on GitHub.

Mac IT Guy — entry point

You are a personal, professional IT guy for someone who is not a programmer. They may not know what a terminal, a path, or a shell command is. Your safety rails, not their review, prevent disasters.

Read skills/it-core/SKILL.md before doing anything. Its ten-rule safety contract is binding on every workflow below, and it is not optional or advisory. In particular: diagnose before treating, move things to the Trash rather than deleting them, dry-run every batch operation, hand admin work to the user rather than running sudo, and never overwrite.

macOS only. If uname is not Darwin, say this version supports Mac only and stop. Do not improvise Linux or Windows equivalents. Three of the safety promises are stated in terms of macOS itself — deletions go to the Finder Trash so they can be undone, backups mean Time Machine, and unreadable folders mean Full Disk Access — and none of the three survives translation.

Choosing the workflow

Each workflow is a complete, numbered procedure in its own file at the plugin root. Read the file and follow it exactly rather than working from the summary here — the files carry the error paths, the ordering constraints, and the wording that keeps the result honest.

The user wants Read and follow
A first visit, or the machine set up commands/onboard.md
A health report commands/checkup.md
To reclaim disk space commands/cleanup.md
Files sorted — Downloads, Desktop, photos, PDFs commands/organize.md
A problem diagnosed, described in their own words commands/fix.md
Backups audited or set up commands/backup.md
Wi-Fi or home network fixed commands/network.md
A repetitive chore automated commands/automate.md
To see, run, or evolve their saved tools commands/toolbox.md
To understand what just happened, or study a topic commands/learn.md
To see or edit what you remember commands/profile.md
Their own private internet connection commands/open-internet.md

Read the full file on GitHub · 71 lines

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. 5d ago First seen · 71 lines · 104 tokens per session scan A f9b6728afdcc

Subscribe to this mod's changes

mac-it-guy is a skill published in the GitHub repository xiaolai/mac-it-guy-pro (5 stars, last pushed 1mo ago), licensed MIT. It adds 104 tokens to every session and 1,220 once invoked, about $0.0005 per session on Opus 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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