benchmark

Detect performance regressions by comparing current page metrics to baselines.

Updated Feb 27, 2026

Search Tags:#performance #lighthouse #benchmark #web-vitals #baselines #trend-analysis #pr-workflow

Ready to run

npx skills add https://github.com/zhifengzhang-sz/divine-book --skill benchmark-zhifengzhang-sz

💬 Prompt for ChatGPT / Claude Chat▼

Please help me install this Agent Skill.
Skill: benchmark
Source: https://github.com/zhifengzhang-sz/divine-book/tree/main/.claude/skills/gstack/benchmark
Command: npx skills add https://github.com/zhifengzhang-sz/divine-book --skill benchmark-zhifengzhang-sz

SYSTEM DOCUMENTATION & REQUIREMENTS

What problem does it solve?

Performance regressions slip into releases and go unnoticed until users complain. This Skill establishes baselines for core metrics and compares current results to quickly surface slowdowns.

Core Features & Use Cases

Baseline capture for pages and resources to enable PR comparisons.
Automated detection of regressions and trends with a summarized report.
Trend analysis over time to inform optimization and leadership discussions.

Quick Start

Run a baseline performance audit on a target URL to establish a baseline and review regression reports.

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 workflow?▼

Detect performance regressions by establishing baselines for core page metrics and comparing current PR results against stored baselines to automatically surface slowdowns and summarize trend reports.

What is the best way to track web-vitals and bundle size trends over time?▼

Track web-vitals and bundle trends by capturing deterministic performance baselines locally and comparing subsequent audits to inform optimization decisions and leadership discussions with summarized trend reports.

Does this benchmark approach require external storage to save performance baselines?▼

No external storage is required, because this approach enables deterministic data collection and local storage of baseline performance metrics for direct comparison against current page and resource audits.

Can I compare network resource performance across pages for regression detection?▼

Yes, you can apply regression detection across pages, bundles, and network resources by capturing baselines for each target and comparing current audit metrics to surface slowdowns during development.

Why do performance regressions slip into releases unnoticed?▼

Performance regressions slip into releases unnoticed without automated baseline comparisons, but establishing metric baselines and comparing current results quickly surfaces slowdowns before users complain.