performance-review

Measure Core Web Vitals, load times, and resource usage across key pages.

Updated Aug 27, 2026
One-click install
npx skills add https://github.com/ShiplightAI/codex-plugin --skill performance-review-shiplightai
Or copy as Structured Prompt for Agent
Please help me install this Agent Skill.
Skill: performance-review
Source: https://github.com/ShiplightAI/codex-plugin/tree/main/agents/skills/performance-review
Command: npx skills add https://github.com/ShiplightAI/codex-plugin --skill performance-review-shiplightai

SYSTEM DOCUMENTATION & REQUIREMENTS

What problem does it solve?

Performance issues in modern web apps often go unnoticed during development but degrade real-user experience. This Skill provides a structured approach to measure, analyze, and improve frontend performance across CWV, load metrics, and resources.

Core Features & Use Cases

  • End-to-end browser-based performance measurement across key pages (desktop + mobile)
  • CWV, load, and resource budgets with actionable remediation guidance
  • Automated reporting and YAML regression test generation for repeatable audits

Quick Start

Run a production-like performance audit on your app by collecting CWV, load, and resource metrics for your key pages and generate a comprehensive report.

Frequently Asked Questions about performance-review

High-intent search queries and answers about installing and using this skill.

FAQPage Schema
How do I measure Core Web Vitals for my web app?

Measure Core Web Vitals by running a browser-based performance audit across key pages on both desktop and mobile. This process collects CWV metrics, load times, and resource usage to establish a repeatable performance baseline for production-like web applications.

Can I automate web performance reporting for regression testing?

Automate web performance reporting by generating YAML regression tests from your audit results. This enables repeatable measurement and analysis across key pages, ensuring continuous monitoring of CWV metrics and load times during development cycles.

What's the best way to identify frontend performance issues in production?

Identify frontend performance issues by measuring CWV, load metrics, and resource usage across landing, feature, and data-heavy pages. This approach quantifies browser performance problems in production-like environments and generates actionable remediation guidance.

How do I set performance budgets for load times and resources?

Set performance budgets by defining threshold limits for CWV, load times, and resource usage metrics. The audit measures your web app against these budgeted thresholds to identify violations and provide actionable remediation guidance for non-compliant pages.