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Frontend Performance Reviewer

Checked
jarrodmedrano·vlatest·frontend

Helps with frontend development, performance optimization as part of agent workflows 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 jarrodmedrano/jarrod-claude-skills --skill frontend-performance-reviewer -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

jarrodmedrano

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 jarrodmedrano/jarrod-claude-skills at b983228e83.

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

Commit
b983228e83
Manifest
.claude/skills/frontend-performance-reviewer/SKILL.md
Scanned
3 files, 1,261 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 analyzes frontend code and provides performance review feedback. It identifies potential bottlenecks, suggests optimizations for improved loading times, and assesses the overall efficiency of web applications. The tool aims to help developers create faster and more responsive user experiences.

When to use it

  • Pre-release optimization: Before deploying a new feature or version of an application, identify and address performance issues proactively.
  • Troubleshooting slow pages: Quickly diagnose why specific pages are loading slowly and receive targeted recommendations for improvement.
  • Code review process: Integrate into code reviews to ensure frontend performance standards are met consistently across the team.
  • Refactoring legacy code: Evaluate the performance impact of refactoring older codebase sections.

Key capabilities

  • Performance bottleneck identification
  • Optimization suggestions
  • Loading time assessment
  • Efficiency analysis

Example prompts

  • "Review the frontend performance of this React component: [component code]"
  • "Analyze the loading speed of my website's homepage and suggest improvements."
  • "Can you identify any potential performance issues in this JavaScript file?"

Tips & gotchas

The skill’s effectiveness depends on providing accurate and complete code snippets. Large, complex projects may require iterative analysis for comprehensive results.