Benchmark web page performance and flag regressions against baselines.
npx skills add https://github.com/jayzalowitz/skytwin --skill benchmark-jayzalowitz
Please help me install this Agent Skill. Skill: benchmark Source: https://github.com/jayzalowitz/skytwin/tree/main/.claude/skills/gstack/benchmark Command: npx skills add https://github.com/jayzalowitz/skytwin --skill benchmark-jayzalowitz
This skill detects performance regressions in web pages by establishing baselines for load times, Core Web Vitals, and resource usage, and by comparing new builds to those baselines.
Run /benchmark on a URL to start a full performance audit and baseline comparison.
High-intent search queries and answers about installing and using this skill.
Detect web page performance regressions by capturing load time and Core Web Vitals baselines, then comparing new builds against them within PR workflows to flag slowdowns automatically.
Establish a performance baseline by running a benchmark on a URL or page suite to capture TTFB, FCP, LCP, and total resource load metrics, which can then be saved in JSON and markdown formats.
Track Core Web Vitals trend analysis across multiple builds by comparing per-page metrics over time, revealing slowdowns to inform optimization priorities.
Yes, measuring LCP, FCP, and other web performance metrics requires the browse daemon to run the benchmark audits and capture page load data.
The best way to compare web performance against a PR baseline is to automatically detect regressions in key metrics like TTFB and LCP by evaluating new page loads against previously captured JSON or markdown baselines.
Web performance benchmark results vary across runs due to fluctuating network conditions and resource usage, making trend analysis across multiple builds necessary to reveal true slowdowns over time.
aimasteraccMeasures web performance regressions by comparing navigation and resource timing data against baselines.
AGIBuildCompare BenchmarkDotNet JSON results against GitHub Actions artifact baselines.
fghaffarDetect performance regressions in web applications by benchmarking Core Web Vitals and resource sizes.
jfrometaRun automated Lighthouse audits and parse report JSON for web performance scores.
