Measure and compare web performance metrics across pull requests.
npx skills add https://github.com/MissTully/Gstack --skill benchmark-misstully
Please help me install this Agent Skill. Skill: benchmark Source: https://github.com/MissTully/Gstack/tree/main/benchmark Command: npx skills add https://github.com/MissTully/Gstack --skill benchmark-misstully
Benchmarking and instrumentation to detect performance regressions by establishing baselines for page load times, Core Web Vitals, and resource sizes, and by comparing before/after on every PR.
Run the benchmark with a URL to measure performance and compare it to existing baselines.
High-intent search queries and answers about installing and using this skill.
To detect web performance regressions across pull requests, you can measure and compare page load times and Core Web Vitals against established baselines. This Skill automates before-and-after comparisons on every PR to identify regressions.
Core Web Vitals baseline generation works by collecting per-page timing metrics from the browse daemon for specified URLs. It establishes a performance baseline and automatically compares new PR changes against it to catch regressions.
Yes, you can track historical performance trends for page load times. The Skill supports a trend mode that aggregates historical metrics collected via the browse daemon to visualize performance shifts over time.
To generate a performance diff report, you need the browse tool, a target URL, and existing performance baselines. The diff mode compares current metrics against these baselines to highlight resource size and timing changes.
Yes, the tool supports a quick mode for rapid performance checks. This mode allows you to measure current page load times and Core Web Vitals on a target URL without requiring a full baseline comparison beforehand.
The best way to identify boomerang regressions after code changes is by comparing pre-merge and post-merge web performance metrics. This Skill automatically diffs page load times and resource sizes to guide your performance fixes.
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