device-use

device-use is a skill for Claude Code, Codex from zvadaadam/deus-machine. It costs 45 tokens per session (2,320 once invoked), scanned A, original, MIT.

A command-line tool for controlling iOS Simulators, Apple's virtual iPhones and iPads used to run and test apps on a Mac.

In plain words
What is it for?
Use it to list, boot, and shut down simulators; inspect, launch, or terminate apps; and pre-grant permissions for testing.
Why use it?
It lets an agent manage simulator state and apps through structured commands instead of manual interaction with Simulator.app.

Skill for Claude CodeCodex

Written for no agent in particular: nothing here depends on one.

Good fit Use it to list, boot, and shut down simulators; inspect, launch, or terminate apps; and pre-grant permissions for testing.

Compare 6 skills from other repositories ↓
Install with agentmods
npx agentmods add skills/zvadaadam/deus-machine/device-use
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 zvadaadam/deus-machine --skill device-use
Clone the repo
git clone --depth 1 https://github.com/zvadaadam/deus-machine

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.

agentmods badge for device-use

README.md
[![agentmods](https://agentmods.dev/badge/skills/zvadaadam/deus-machine/device-use/github.svg)](https://agentmods.dev/skills/zvadaadam/deus-machine/device-use)
Your own site
<a href="https://agentmods.dev/skills/zvadaadam/deus-machine/device-use"><img src="https://agentmods.dev/badge/skills/zvadaadam/deus-machine/device-use/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.

agentmods 80×15 button for device-use

Your own site · 80×15
<a href="https://agentmods.dev/skills/zvadaadam/deus-machine/device-use"><img src="https://agentmods.dev/badge/skills/zvadaadam/deus-machine/device-use.svg" alt="Reviewed on agentmods" width="80" height="20"></a>
Per session 45 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 2,320 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. Third-party audits
  • NVIDIA SkillSpector warn 7 Sept 2026
SkillSpector: 1 finding, up to high

These are SkillSpector’s own severities. On a checked sample its high-severity flags on skills were ~96% false positives — a documented command, a public API, a “never do X” rule — so we show them as a caution to read, not a verdict. Why →

  • high Memory Poisoning · line 133
    Skill manipulates agent memory, state, or stored context. Memory corruption can alter personality, override safety rules, or cause unpredictable behavior.
    Fix: Protect agent memory and state from modification by untrusted content. Use read-only memory for critical instructions and validate all state changes.
How audits are shown
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 5.1 $0.00045 $0.02320
Opus 5.5 $0.00018 $0.00928
Sonnet 5.5 $0.00009 $0.00464
Haiku 4.5 $0.00005 $0.00232

Measured 2mo ago against content hash 412807ac6058, method: parsed. Prices are Anthropic first-party input rates as of 2026-10-07, from the pricing page.

Security

Grade A, and why

device-use 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 2mo 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.

packages/device-use/skills/device-use/SKILL.md · 257 lines

How it starts

The opening of the file, as written. The whole thing — 257 lines — stays where its author put it; the contents beside it link to each section on GitHub.

device-use

iOS Simulator automation CLI. Observe, interact, and stream iOS apps through structured commands.

Commands

Simulator Lifecycle

device-use list                          # List available simulators
device-use list --booted                 # List only booted simulators
device-use boot "iPhone 17 Pro"          # Boot a simulator by name
device-use boot <UDID>                   # Boot by UDID
device-use shutdown "iPhone 17 Pro"      # Shutdown specific simulator
device-use shutdown --all                # Shutdown all simulators
device-use open                          # Open Simulator.app window

Apps

device-use apps                          # All installed apps with bundle IDs
device-use apps --user                   # Only user-installed apps
device-use apps --system                 # Only built-in Apple apps
device-use appstate com.apple.Preferences  # Is it installed / running / pid
device-use launch com.apple.Maps         # Launch an app
device-use launch com.apple.Maps --relaunch  # Terminate first, then launch
device-use terminate com.apple.Maps      # Kill a running app

Permissions

Pre-grant system permissions so authorization dialogs don't block your flow.

device-use permission grant  location   com.apple.Maps
device-use permission grant  photos     ai.deus.machine
device-use permission revoke microphone com.example.app
device-use permission reset  all        com.example.app  # Reset only this app
device-use permission reset  all                         # Reset every app

Services: calendar, contacts, contacts-limited, location, location-always, photos, photos-add, media-library, microphone, motion, reminders, siri, all.

Actions: grant, revoke, reset.

Observe the Screen

device-use snapshot                      # Full tree with structural context
device-use snapshot -i                   # Only branches containing interactive refs
device-use snapshot -i --flat            # One line per ref, no hierarchy
device-use snapshot -i --diff            # Include diff vs previous snapshot
device-use snapshot -i --hidden          # Include off-screen interactive nodes
device-use screenshot                    # Capture to stdout (base64 when piped)
device-use screenshot output.png         # Capture to file
device-use screenshot output.png --annotate  # Draw @ref boxes on the screenshot
device-use screenshot --base64           # Explicit base64 output

Read the full file on GitHub · 257 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. 2mo ago First seen · 257 lines · 45 tokens per session scan A 412807ac6058

Subscribe to this mod's changes

device-use is a skill published in the GitHub repository zvadaadam/deus-machine (27 stars, last pushed 3d ago), licensed MIT. It adds 45 tokens to every session and 2,320 once invoked, about $0.0002 per session on Opus 5.5. 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 2026-08-30.

Related

device-use compared with skills from other repositories

device-use next to 6 skills from other repositories
ModTypeStarsLast pushLicenceScanTokensWorks with
device-usezvadaadam/deus-machineSkill273d agoMITA45Claude Code, Codex
orca-emulator-androidstablyai/orcaSkill117kyesterdayMITA102Claude Code, Codex
glance-canonical-layoutsandroid/skillsSkill10kyesterdayApache-2.0A56Claude Code
android-tombstone-symbolicationdotnet/skillsSkill5.8kyesterdayMITA176Claude Code
dogfoodcallstack/agent-deviceSkill5.3kyesterdayMITA55Claude Code
winapp-mauimicrosoft/winappCliSkill1.4kyesterdayMITA68Claude Code
app_remixrome-os/romeSkill889yesterdayMITA50Claude Code, Codex