benchmark

Measure and compare web performance metrics from live pages.

Updated Mar 9, 2026
One-click install
npx skills add https://github.com/Andy-HNU/AndyClaw --skill benchmark-andy-hnu
Or copy as Structured Prompt for Agent
Please help me install this Agent Skill.
Skill: benchmark
Source: https://github.com/Andy-HNU/AndyClaw/tree/main/skills/gstack-benchmark
Command: npx skills add https://github.com/Andy-HNU/AndyClaw --skill benchmark-andy-hnu

SYSTEM DOCUMENTATION & REQUIREMENTS

What problem does it solve?

Performance regression detection using the browse daemon. Establishes baselines for page load times, Core Web Vitals, and resource sizes. Compares before/after on every PR. Tracks performance trends over time.

Core Features & Use Cases

  • Auto-discover pages from navigation or specify pages
  • Baseline capture, current run, and trend analysis across history
  • Generate detailed per-page and resource-level reports, alerts, and recommendations

Quick Start

Run the benchmark against a URL to collect baseline and current performance data.

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 on a live page URL?

Track Core Web Vitals and page load times by capturing baseline metrics and comparing them against current runs. It stores this history in a local directory to enable trend analysis and alerting over time.

How does PR-centric performance benchmarking work for bundle sizes?

Yes, you can auto-discover pages from navigation or specify pages directly to collect navigation timing data and resource counts. This allows targeted performance measurement across specific live URLs.

What is the best way to trend Core Web Vitals across history?

The best way to trend Core Web Vitals is to store baselines, current results, and historical data in a local directory. This enables continuous trend analysis and regression detection across your project's history.

Does this benchmark tool generate resource-level performance reports?

Yes, the benchmark tool generates detailed per-page and resource-level reports. It provides actionable recommendations and alerts based on the collected navigation timing data and bundle size metrics.