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Web Performance

Checked
grahamcrackers·vlatest·frontend·MIT

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 grahamcrackers/skills --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

grahamcrackers

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 grahamcrackers/skills at ca83de4544.

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

Commit
ca83de4544
Manifest
skills/web-performance/SKILL.md
Scanned
1 file, 309 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, authored by grahamcrackers, focuses on improving website performance. It likely provides tools and techniques to analyze and optimize various aspects of a webpage's loading speed and efficiency. The specific capabilities aren’t detailed in the provided source content but are implied to be related to web development best practices for performance.

When to use it

  • Slow Loading Times: When users complain about slow page load speeds, indicating a need for optimization.
  • Poor SEO Rankings: To improve website ranking on search engines which often prioritize fast-loading sites.
  • High Bounce Rate: When users are leaving your site quickly due to slow loading times.
  • Mobile Optimization: For ensuring websites perform well on mobile devices with limited bandwidth and processing power.

Key capabilities

Based on the skill's purpose, potential key capabilities likely include:

  • Performance analysis tools
  • Optimization recommendations
  • Code minification techniques
  • Image optimization strategies

Example prompts

  • "Analyze this website [URL] for performance bottlenecks."
  • "Suggest ways to improve the loading speed of my homepage."
  • "Optimize these images [list of image URLs]."

Tips & gotchas

The skill's effectiveness likely depends on having access to the website’s code and assets. It is also possible that some optimization techniques might require adjustments to existing site functionality.