performance-benchmarker

Measure performance baselines and validate improvements for Expo React Native and web apps.

1|Updated Mar 13, 2026
One-click install
npx skills add https://github.com/coreymaypray/sloth-skill-tree --skill performance-benchmarker-coreymaypray
Or copy as Structured Prompt for Agent
Please help me install this Agent Skill.
Skill: performance-benchmarker
Source: https://github.com/coreymaypray/sloth-skill-tree/tree/main/plugins/maycrest-ops/skills/performance-benchmarker
Command: npx skills add https://github.com/coreymaypray/sloth-skill-tree --skill performance-benchmarker-coreymaypray

SYSTEM DOCUMENTATION & REQUIREMENTS

What problem does it solve?

Performance Benchmarker identifies and proves performance improvements by establishing baselines, measuring changes with data, and validating outcomes before and after deployments.

Core Features & Use Cases

  • React Native / Expo performance profiling: startup time, frame rate, and rendering efficiency using tools like react-native-performance, Flipper, and React DevTools Profiler.
  • Web performance benchmarking: Lighthouse / Pagespeed metrics for Vercel previews, Core Web Vitals targets (LCP, CLS, FID).
  • Backend performance analysis: SQL query performance, edge function latency, and resource usage with profiling data.
  • Methodology and repeatability: baseline-before-optimization, statistical analysis (p50/p95), and evidence-based validation.

Quick Start

Run baseline measurements, implement changes, and re-measure to validate improvements.

Frequently Asked Questions about performance-benchmarker

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

FAQPage Schema
How do I establish a performance baseline for my React Native Expo app?

To establish a performance baseline for your React Native app, measure startup time and frame rate using react-native-performance and Flipper before implementing any optimizations. This records the initial metrics needed to validate later improvements.

Can I use Lighthouse to benchmark Core Web Vitals on Vercel preview deployments?

Yes, you can benchmark Core Web Vitals on Vercel previews using Lighthouse. It measures LCP, CLS, and FID metrics to provide data-driven validation of web frontend performance changes before deployment.

What is the best way to measure edge function latency and SQL query performance?

The best way to measure edge function latency and SQL query performance is by running backend profiling tools against your Supabase backend. This captures resource usage and latency data to prove backend performance improvements.

Does performance benchmarking require statistical analysis to prove improvements?

Yes, performance benchmarking requires statistical analysis using p50 and p95 percentiles to prove improvements. This methodology ensures your performance gains are repeatable and validated with data rather than subjective observations.

How do I validate performance improvements after optimizing my web frontend?

To validate performance improvements after optimizing your web frontend, re-measure your metrics against the established baseline. Comparing the before and after data proves the effectiveness of your changes with measurable evidence.