Device Matrix

Q: What is a Claude Code skill and how does the Device Matrix skill fit in?

A Claude Code skill is a SKILL.md file that lives under ~/.claude/skills/<name>/ and tells the Claude Code CLI agent how to perform a specific task (instructions, prompts, allowed tools). Skills are auto-discovered at session start. Device Matrix is one of 67,000+ skills indexed in the open ClaudSkills catalog, classified under the Engineering category. Learn more at https://claudskills.com/learn/what-is-skill-md/.

Category: Engineering · Sub-category: testing · Last updated: 2026-05-21

cloud:aws cloud:firebase

Configure device matrix testing across real phones, tablets, and emulators. Sets up Firebase Test Lab, AWS Device Farm, or BrowserStack with smart device selection covering flagships to budget phones, test sharding for parallel execution, flaky test quarantine, and cross-device performance benchmarking. Use when you need to test on multiple devices, validate across screen sizes, catch device-specific bugs, or benchmark performance on low-end hardware.

About this skill (catalog notes)

Device Matrix includes pricing or quota commentary; 9 code blocks for direct copy-paste. At roughly 1,792 words the SKILL.md is on the longer end of the catalog distribution.

Indexed lastmod: 2026-05-21
Catalog position: Engineering · testing
Indexed related skills: 10

How Device Matrix fits the catalog

Device Matrix sits in the Engineering category under the testing sub-topic in the ClaudSkills catalog. There are 10 related skills indexed alongside it; comparing a few before installing usually reveals which fits your workflow best.

These notes are auto-generated from features detected in the SKILL.md file and from this catalog's structure — they aren't part of the source repository.

From the source SKILL.md

You are an autonomous device matrix testing configuration agent. You set up infrastructure for testing a mobile app across multiple real devices and emulators. Do NOT ask the user questions. Detect the framework and configure accordingly.

# browserstack.yml
app: ./app/build/outputs/apk/debug/app-debug.apk
testSuite: ./app/build/outputs/apk/androidTest/debug/app-debug-androidTest.apk
devices:
  - Samsung Galaxy S24-14.0
  - Google Pixel 8-14.0
  - Samsung Galaxy A54-13.0
  - Google Pixel 6-13.0
shards:
  numberOfShards: 4
networkLogs: true
deviceLogs: true
video: true

What this skill does

Device Matrix is a community-contributed Claude Code skill in the testing sub-category. It ships as a SKILL.md file that Claude Code auto-discovers under ~/.claude/skills/device-matrix/ and loads when your prompt matches the skill's trigger.

When to invoke it: Use when you need to test on multiple devices, validate across screen sizes, catch device-specific bugs, or benchmark performance on low-end hardware.

Who uses this skill

The Device Matrix Claude Code skill is built for software engineers, backend developers, full-stack teams, and technical leads building and maintaining production systems. It's part of ClaudSkills (also referred to as Claude Skills or Claude Code Skills) — the open community-curated registry of 116,000+ SKILL.md files for Anthropic's Claude Code agent and the wider Claude ecosystem (Claude API, Claude Agent SDK).

How to install

Free

Manual install (2 steps)

mkdir -p ~/.claude/skills/device-matrix
curl -L https://claudskills.com/skills/device-matrix/SKILL.md \
  -o ~/.claude/skills/device-matrix/SKILL.md

Or just download SKILL.md directly and drop it into ~/.claude/skills/device-matrix/. Claude Code auto-discovers it on next session.

Skills live at ~/.claude/skills/device-matrix/SKILL.md on macOS/Linux, or %USERPROFILE%\.claude\skills\device-matrix\SKILL.md on Windows. See the full install guide for step-by-step instructions.

📱 Install from your phone or desktop Telegram

Open @claudskills_bot on Telegram, tap Open Desktop App, and the desktop app installs this skill for you. Or share the bot link with a colleague — they get the same one-tap install. Learn more →

Pro

One-click install via the desktop app

The ClaudSkills desktop app installs any skill directly into ~/.claude/skills/ with one click — no terminal required. Pro starts at $9/mo or $149 lifetime.

Pro

For the full experience including quality scoring and one-click install features for each skill — upgrade to Pro.

See pricing → Download desktop app

Frequently asked questions

How do I install the Device Matrix Claude Code skill?

Install via the ClaudSkills desktop app (one click) or copy SKILL.md from the source repository to ~/.claude/skills/device-matrix/SKILL.md and restart Claude Code. Both flows are detailed at claudskills.com/install/.

What does the Device Matrix skill do?

Is this skill free to install?

Yes. ClaudSkills is an open registry — every skill keeps its source repository's license, and manual install via copy is free. ClaudSkills Pro ($9/mo, $79/yr, or $149 one-time) adds one-click install via the desktop app and a multi-signal Quality Score.

When should I use the Device Matrix skill?

Use Device Matrix when your Claude Code task falls under the Engineering category — specifically in the testing area. Claude Code auto-discovers installed skills and invokes the right one based on the task description, so you can also ask Claude directly (e.g. "use Device Matrix" or describe the task and let Claude pick). Browse related skills at /category/engineering/.

What is a Claude Code skill and how does the Device Matrix skill fit in?

A Claude Code skill is a SKILL.md file that lives under ~/.claude/skills/<name>/ and tells the Claude Code CLI agent how to perform a specific task (instructions, prompts, allowed tools). Skills are auto-discovered at session start. Device Matrix is one of 67,000+ skills indexed in the open ClaudSkills catalog, classified under the Engineering category. Learn more at /learn/what-is-a-claude-skill/.

Cite this skill

If you reference this skill in a blog post, paper, or documentation, you can cite it as:

APA

ClaudSkills. (2026). Device Matrix [Claude Code skill]. ClaudSkills. https://claudskills.com/skills/device-matrix/

BibTeX

@misc{device-matrix-2026,
  author    = {ClaudSkills},
  title     = {Device Matrix [Claude Code skill]},
  year      = {2026},
  publisher = {ClaudSkills},
  url       = {https://claudskills.com/skills/device-matrix/}
}

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