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Performance Optimizer

Checked
ajianaz·vlatest·frontend

Automatically optimizes frontend code for speed and efficiency, reducing load times and improving user experience.

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 ajianaz/skills-collection --skill performance-optimizer -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

ajianaz

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 ajianaz/skills-collection at f1d8f59331.

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

Commit
f1d8f59331
Manifest
skills/sveltekit-data-optimizer/SKILL.md
Scanned
2 files, 467 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

The ajianaz-performance-optimizer skill analyzes frontend code and suggests optimizations to improve website loading times and overall performance. It identifies potential bottlenecks, such as inefficient JavaScript or large image sizes, and provides actionable recommendations for improvement. The tool aims to enhance user experience by reducing page load latency.

When to use it

  • Slow Website: Use when users are reporting slow page loads or bounce rates are high.
  • Large Image Assets: Employ when a website contains numerous images that may be contributing to performance issues.
  • Complex JavaScript: Utilize when the frontend code base is extensive and potentially inefficient, requiring optimization.
  • Mobile Optimization: Apply before launching a mobile-first or responsive design to ensure optimal loading speeds on smaller devices.

Key capabilities

  • Code analysis for identifying performance bottlenecks.
  • Image size optimization suggestions.
  • JavaScript efficiency recommendations.
  • Actionable insights for improving website load times.

Example prompts

  • "Analyze this website's frontend code and suggest optimizations: [website URL]"
  • "Identify large image assets on this page and recommend compression strategies: [page URL]"
  • "Review the JavaScript performance of this component: [code snippet]"

Tips & gotchas

The skill requires access to the frontend codebase or website URLs for analysis. The recommendations provided are suggestions; implementation may require developer expertise and consideration of potential side effects.