Test on real mobile devices and viewports
SkillDev toolsmobile-testing is a skill that guides an AI agent to review whether websites are tested on real mobile devices and screen sizes. It is used when checking CI coverage, automated checks, or test strategy, with a focus on whether each rule is continuously verified rather than just documented.
Available today. Use it from your connected AI after setup.
No other account needed.
Have an AI agent that can load skills.
Then ask your AI: use the Test on real mobile devices and viewports skill
What your AI can do with it
- Review CI coverage for mobile device and viewport testing
- Assess automated checks related to real mobile devices
- Evaluate test strategy for different screen sizes
- Check whether rules are continuously verified, not just documented
Getting started
- Have an AI agent that can load skills.
- Add the mobile-testing skill to the agent's available skills.
- Ask the agent to review CI coverage, automated checks, or test strategy for mobile device and viewport testing.
What this skill tells your AI
The instructions your AI receives, as published by thedaviddias/front-end-checklist in skills/mobile-testing/SKILL.md and read by ahel’s review.
More than 55% of global web traffic comes from mobile devices. Mobile browsers have different rendering engines, different font rendering, limited memory, real touch events that differ from mouse events, and system UI (notch, home indicator, keyboard) that intrudes on your layout. Issues like sticky hover states, touch target sizes, and keyboard layout shifts only appear on real devices.
Quick Reference
- Desktop DevTools device emulation catches layout issues but not real touch behavior
- Test on at least one Android (Chrome) and one iOS (Safari) real device
- Test common viewport breakpoints: 375px (iPhone SE), 390px (iPhone 14), 768px (iPad)
- Use BrowserStack or similar services for testing on devices you don't own
Check
Does this project have any mobile-specific test configurations? Check for Playwright device emulation, mobile viewport tests, or notes about mobile testing.
Fix
Add Playwright tests using mobile device presets to cover key user flows on mobile viewports.
Explain
Explain the difference between DevTools emulation and real device testing, common mobile-specific issues to test for, and how to use Playwright's device emulation.
Code Review
Review tests, CI workflows, and enforcement points related to Test on real mobile devices and viewports. Flag exact gaps where the rule is not automatically verified or where failures do not block regressions.
For full implementation details, code examples, and framework-specific guidance,
see references/rule.md.
Rule page: https://frontendchecklist.io/en/rules/testing/mobile-testing
Signals
- GitHub stars
- 74k
- Forks
- 7k
- Last commit
- Aug 2026
Questions
- When should this skill be used?
- Use it when reviewing CI coverage, automated checks, or test strategy related to testing on real mobile devices and viewports.
- What does the skill focus on?
- It focuses on whether each rule is continuously verified, not just documented.
- Does it run the mobile tests itself?
- No. It guides the agent to review whether websites are tested on real mobile devices and screen sizes.
Advanced
- Item type
- skill
- Key
mobile-testing-thedaviddias- Source
- github.com/thedaviddias/front-end-checklist