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Mobile Perf

Checked
dtsvetkov1·vlatest·frontend

Analyzes and optimizes mobile web page performance metrics like load time and memory usage using automated testing.

Repository

Install on your platform

Showing Claude Code. One command installs this skill into any of the agents below.

  1. 1

    Run this in your project

    terminal
    $ npx skills add dtsvetkov1/agent-rules --skill mobile-perf -a claude-code

  2. Uses the open-source skills CLI and needs Node.js. Add -g to install it for your user instead of this project.

What we know about this skill

Publisher

dtsvetkov1

Taken from the source listing. We haven't verified who controls this account.

Install target

Live repository

Not pinned. Installing fetches whatever the repository holds at the time you run the command.

No human has reviewed this code. The checks below are a static scan of the files at one commit — nobody has run this skill or judged whether it works. A skill runs with whatever access you give your agent, so read the source before you install it.

Automated safety checks

scanned

This skill passed all 6 checks. We read its files at one commit and looked for the things that make a skill dangerous to run — not for whether it works.

  • Declares what it does: passed

    SKILL.md parses and declares a name and a description.

    SKILL.md exists, its frontmatter parses, and it declares a name and a description.

  • No undeclared network calls: passed

    Makes no network calls.

    Every host the skill dials — from its scripts, its config endpoints or the commands it tells the agent to run — is either well-known package and API infrastructure or declared in its own frontmatter. Links in documentation are not counted.

  • No obfuscated payloads: passed

    No encoded or obfuscated payloads.

    No base64, hex or compressed blob is decoded and then executed, and no encoded shell commands.

  • No credential access: passed

    Reads no keys, tokens, keychains or credential files.

    Neither the code nor the SKILL.md instructions read SSH keys, cloud credentials, keychains, token stores, browser cookie databases or dotfiles that hold secrets.

  • No pipe-to-shell installers: passed

    No pipe-to-shell or download-and-run installers.

    No `curl … | sh` pattern, in the code or in the instructions, that runs code fetched at run time.

  • Pinned to a commit: passed

    Scanned dtsvetkov1/agent-rules at a676d21d71.

    The exact upstream commit SHA that was scanned is recorded, so the result refers to specific bytes.

Commit
a676d21d71
Manifest
skills/mobile-perf/SKILL.md
Scanned
1 file, 30 lines
This is a static scan, not a review. It reads the skill's files; it does not run them, and it cannot tell you whether the skill is any good or whether the code does what its description says. A skill runs with whatever access you give your agent.
What each check looks for →

About this skill

What it does

This skill, mobile-perf, focuses on optimizing web applications for mobile devices. It helps identify and address performance bottlenecks specifically impacting users on smartphones and tablets. The skill aims to improve metrics like page load time, rendering speed, and overall responsiveness in a mobile context.

When to use it

  • Slow Mobile Page Loads: When user feedback indicates pages are loading slowly or feeling sluggish on mobile devices.
  • High Bounce Rate on Mobile: If your website experiences a high bounce rate specifically from mobile users.
  • Poor Core Web Vitals Scores (Mobile): To improve scores for metrics like Largest Contentful Paint, First Input Delay, and Cumulative Layout Shift when measured on mobile.
  • Debugging Mobile-Specific Issues: When encountering performance problems that only appear or are exacerbated on mobile devices.

Key capabilities

  • Performance analysis of web pages on mobile devices
  • Identification of bottlenecks affecting mobile load times
  • Optimization recommendations for mobile rendering and responsiveness

Example prompts

  • "Analyze the performance of [website URL] on a typical Android smartphone."
  • "What are the biggest factors slowing down this page's loading time on mobile? [website URL]"
  • "Give me suggestions to improve Core Web Vitals scores for [website URL] when viewed on an iPhone."

Tips & gotchas

This skill likely requires access to web pages or URLs to analyze. The accuracy of the analysis depends on the realism of the simulated mobile environment, so results should be validated with real-world testing.