benchmark

Name: benchmark
Availability: InStock
Author: Florian

Run browser-based performance benchmarks and compare results to historical baselines.

4|2|Updated Mar 29, 2026

Search Tags:#performance #diff #benchmark #trends #web-vitals #lcp #ttfb

Ready to run

npx skills add https://github.com/florianhorner/mammamiradio --skill benchmark-florianhorner

💬 Prompt for ChatGPT / Claude Chat▼

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

SYSTEM DOCUMENTATION & REQUIREMENTS

What problem does it solve?

The performance benchmark skill helps teams detect slow changes by running browser-based performance tests and comparing results against historical baselines, enabling proactive performance management.

Core Features & Use Cases

Establish baselines for page load metrics (TTFB, FCP, LCP, DOM timings) and resource sizes.
Compare current results against baselines on PRs, support diff and trend analyses, and generate actionable insights.
Use across multi-page scenarios and CI workflows to identify regressions early and guide optimization decisions.

Quick Start

Run /benchmark <url> to start a performance audit and automatically compare it to the stored baseline.

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?▼

Establish a performance baseline by running browser-based benchmarks on target URLs to record initial TTFB, FCP, LCP, DOM timings, resource sizes, and bundle sizes under `.gstack/benchmark-reports` for future comparison.

How do I analyze performance trends across multiple pages?▼

Analyze performance trends by running the benchmark across multi-page scenarios using `--trend` and `--pages` modes, comparing historical baseline data to generate actionable insights on metric degradation over time.

What web vitals and load metrics are captured during a performance benchmark?▼

Compare current benchmark results against the stored baseline using `--diff` mode to highlight metric deviations across multiple pages, generating actionable insights to identify performance regressions.

Can I run a quick performance audit without executing the full benchmark suite?▼

Run a quick performance audit by passing the `--quick` flag to execute a faster benchmark pass, still capturing core web vitals while reducing execution time for rapid checks.