How do I install the Device Control skill?

Run npx skillmds@latest add johnalbertini14-glitch/device-control in your terminal (requires Node.js), paste this page's agent-chat prompt into Claude, Cursor, or any MCP-connected agent, or download the SKILL.md file and copy it into your agent's skills directory.

What does the Device Control skill do?

Expose safe device actions (volume, brightness, open/close apps) for personal automation. It is listed under Coding & Dev Tools on SkillMD.

Is Device Control safe to use?

This skill has not completed SkillMD's automated safety review yet. Independent scanners report: SkillSpector: PASS, Skill Scanner: PASS. Capability flags: executes scripts. SkillMD never runs a skill's scripts for you; review the SKILL.md before installing.

Which AI agents work with Device Control?

This skill is tagged as working with Claude Code, Claude.ai, OpenAI Codex. SKILL.md is an open format, so most agents that read a skills directory can load it too.

Is Device Control free to use?

Yes. Installing skills from SkillMD is free, and the skill stays under its author's original license.

Who published Device Control?

johnalbertini14-glitch (@johnalbertini14-glitch) published this skill. Their other Agent Skills are listed on their SkillMD profile.

Device Control by johnalbertini14-glitch

Name: Device Control
Rating: 4.2 (5 reviews)
Author: johnalbertini14-glitch

File contents

Device Control Skill

Control device volume, brightness, and applications via command line. Supports Linux, macOS, Windows, and WSL.

Security

All inputs are validated and sanitized to prevent command injection:

Volume/brightness values must be numbers between 0-100
App names are restricted to alphanumeric characters, spaces, dashes, and underscores
Shell metacharacters are blocked

Tool API

device_control

Execute a device control action.

Parameters:
- action (string, required): One of set_volume, change_volume, set_brightness, open_app, close_app.
- value (string/number, optional): The value for the action (0-100 for volume/brightness, delta for change_volume).
- app (string, optional): The application name or path (required for open/close actions).

Usage:

# Set volume to 50%
node skills/device-control/ctl.js --action set_volume --value 50

# Change volume by +10 or -10
node skills/device-control/ctl.js --action change_volume --value 10
node skills/device-control/ctl.js --action change_volume --value -10

# Set brightness to 75%
node skills/device-control/ctl.js --action set_brightness --value 75

# Open an application
node skills/device-control/ctl.js --action open_app --app "firefox"
node skills/device-control/ctl.js --action open_app --app "Visual Studio Code"

# Close an application
node skills/device-control/ctl.js --action close_app --app "firefox"

Platform Support

Action	Linux	macOS	Windows	WSL
set_volume	✅ (pactl/amixer)	✅ (osascript)	✅ (nircmd)	✅ (nircmd)
change_volume	✅	✅	❌	❌
set_brightness	✅ (brightnessctl)	⚠️ (requires brightness CLI)	✅ (WMI)	✅ (WMI)
open_app	✅	✅	✅	✅
close_app	✅ (pkill)	✅ (pkill)	✅ (taskkill)	✅ (taskkill)

Requirements

Linux: pactl (PulseAudio) or amixer (ALSA), brightnessctl (optional, for brightness)
macOS: Built-in osascript, brightness CLI tool (optional, for brightness)
Windows/WSL: nircmd.exe for volume control (download from nirsoft.net)

---name: device-controldescription: Expose safe device actions (volume, brightness, open/close apps) for personal automation.--- # Device Control Skill Control device volume, brightness, and applications via command line. Supports Linux, macOS, Windows, and WSL. ## Security All inputs are validated and sanitized to prevent command injection: - Volume/brightness values must be numbers between 0-100 - App names are restricted to alphanumeric characters, spaces, dashes, and underscores - Shell metacharacters are blocked ## Tool API ### device_control Execute a device control action. - **Parameters:** - `action` (string, required): One of `set_volume`, `change_volume`, `set_brightness`, `open_app`, `close_app`. - `value` (string/number, optional): The value for the action (0-100 for volume/brightness, delta for change_volume). - `app` (string, optional): The application name or path (required for open/close actions). **Usage:** ```bash # Set volume to 50% node skills/device-control/ctl.js --action set_volume --value 50 # Change volume by +10 or -10 node skills/device-control/ctl.js --action change_volume --value 10 node skills/device-control/ctl.js --action change_volume --value -10 # Set brightness to 75% node skills/device-control/ctl.js --action set_brightness --value 75 # Open an application node skills/device-control/ctl.js --action open_app --app "firefox" node skills/device-control/ctl.js --action open_app --app "Visual Studio Code" # Close an application node skills/device-control/ctl.js --action close_app --app "firefox" ``` ## Platform Support | Action | Linux | macOS | Windows | WSL | |--------|-------|-------|---------|-----| | set_volume | ✅ (pactl/amixer) | ✅ (osascript) | ✅ (nircmd) | ✅ (nircmd) | | change_volume | ✅ | ✅ | ❌ | ❌ | | set_brightness | ✅ (brightnessctl) | ⚠️ (requires brightness CLI) | ✅ (WMI) | ✅ (WMI) | | open_app | ✅ | ✅ | ✅ | ✅ | | close_app | ✅ (pkill) | ✅ (pkill) | ✅ (taskkill) | ✅ (taskkill) | ## Requirements - **Linux:** `pactl` (PulseAudio) or `amixer` (ALSA), `brightnessctl` (optional, for brightness) - **macOS:** Built-in osascript, `brightness` CLI tool (optional, for brightness) - **Windows/WSL:** `nircmd.exe` for volume control (download from nirsoft.net)

Frequently asked questions

Device Control