benchmark

Monitors web page performance metrics and detects deviations from established baselines.

Updated Mar 21, 2026
One-click install
npx skills add https://github.com/TimHL5/carousel --skill benchmark-timhl5
Or copy as Structured Prompt for Agent
Please help me install this Agent Skill.
Skill: benchmark
Source: https://github.com/TimHL5/carousel/tree/main/.claude/skills/gstack/benchmark
Command: npx skills add https://github.com/TimHL5/carousel --skill benchmark-timhl5

SYSTEM DOCUMENTATION & REQUIREMENTS

What problem does it solve?

Performance regressions can slip into PRs; this Skill establishes baselines for page load times, Core Web Vitals, and resource sizes, then compares new results against prior runs.

Core Features & Use Cases

  • Baseline capture and ongoing performance monitoring across builds.
  • Per-page metrics reporting (TTFB, FCP, LCP, DOM metrics) and resource analysis.
  • Trend analysis and regression alerting across PRs and releases.

Quick Start

Run the benchmark skill with a URL to begin a full performance audit.

Frequently Asked Questions about benchmark

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

FAQPage Schema
How do I detect web performance regressions in a pull request?

To detect web performance regressions in a pull request, you collect baseline and current metrics during page navigation. This skill compares new results against prior runs to identify regressions, warnings, and improvements across builds.

What is baseline performance measurement for Core Web Vitals?

Baseline performance measurement for Core Web Vitals establishes a historical reference for page load times, TTFB, FCP, LCP, and resource sizes. It enables ongoing performance monitoring and trend analysis across releases.

Can I get per-page metrics reporting for multi-page apps?

Yes, you can get per-page metrics reporting for multi-page apps. The skill targets multi-page apps by collecting DOM metrics and resource sizes during navigation, outputting detailed JSON and Markdown reports.

How do I start a full performance audit for a web page?

To start a full performance audit for a web page, you run the benchmark skill with a URL. It collects browse daemon metrics during page navigation and generates reports for review and baselining.

What is the best way to track historical performance trends across releases?

The best way to track historical performance trends across releases is to capture baseline metrics and compare ongoing results against prior runs. This approach detects regressions and improvements over time.

What formats are outputted for performance regression analysis?

The formats outputted for performance regression analysis are JSON and Markdown reports. These reports detail TTFB, FCP, LCP, DOM metrics, and resource sizes for review and baselining.