Skip to content
TrustedSkillsbeta
Back to all skills

Web Performance

Checked
1mangesh1·vlatest·frontend

Helps with web development, performance optimization as part of building frontend UIs and user experiences workflows.

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 1mangesh1/dev-skills-collection --skill web-performance -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

1mangesh1

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 1mangesh1/dev-skills-collection at 23e297e5a4.

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

Commit
23e297e5a4
Manifest
skills/web-performance/SKILL.md
Scanned
14 files, 1,760 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 optimizes web page loading speed and overall performance. It identifies bottlenecks in the frontend, such as large image sizes or inefficient JavaScript execution, and suggests improvements to enhance user experience. The skill aims to reduce load times and improve perceived responsiveness of websites.

When to use it

  • Slow website: When users report slow loading times or a sluggish feel on a web page.
  • High bounce rate: To investigate if poor performance is contributing to visitors leaving the site quickly.
  • Mobile optimization: To ensure fast and efficient loading on mobile devices with limited bandwidth.
  • SEO improvement: As faster websites tend to rank higher in search engine results.

Key capabilities

  • Frontend performance analysis
  • Bottleneck identification
  • Optimization suggestions

Example prompts

  • "Analyze the web performance of [website URL]."
  • "What are the biggest bottlenecks affecting the loading speed of this page?"
  • "Suggest optimizations for a website with a high bounce rate."

Tips & gotchas

The skill's effectiveness depends on accurate input; providing the correct website URL is crucial. While it provides suggestions, implementing them often requires technical expertise in frontend development.