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Modern Web Performance

Listed
dokhacgiakhoa·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 dokhacgiakhoa/agent-skills-4-vibe-coding-cli --skill modern-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

dokhacgiakhoa

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 failed 1 of 6 checks. A failure is not proof of bad intent; it means something in the code needs a human to look at it before you run it.

  • Declares what it does: failed

    SKILL.md has no YAML frontmatter, so it declares nothing machine-readable.

    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 dokhacgiakhoa/antigravity-ide at c4a059bbf7.

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

Commit
c4a059bbf7
Manifest
cli/skills/modern-web-performance/SKILL.md
Scanned
3 files, 100 lines
Copies in repo
3 — all of them scanned
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 focuses on optimizing website performance using modern web development techniques. It can analyze a webpage's structure and resources, identify bottlenecks, and suggest improvements for faster loading times and better user experience. The skill aims to improve metrics like Largest Contentful Paint (LCP) and First Input Delay (FID).

When to use it

  • You have a website that is slow to load or feels unresponsive.
  • You want to identify specific areas of your site causing performance issues.
  • You need help implementing best practices for web performance optimization, such as lazy loading and code splitting.
  • You're preparing a website for launch and want to ensure optimal initial performance.

Key capabilities

  • Website analysis
  • Performance bottleneck identification
  • Suggestion of optimization techniques (e.g., lazy loading, code splitting)
  • Largest Contentful Paint (LCP) improvement
  • First Input Delay (FID) reduction

Example prompts

  • "Analyze the performance of [website URL] and suggest improvements."
  • "What are the biggest bottlenecks affecting the speed of [website URL]?"
  • "How can I optimize images on my website to reduce load time?"

Tips & gotchas

The skill's suggestions may require technical expertise to implement. It is recommended that you have a basic understanding of web development concepts and tools before using this skill.