What problem does it solve?
Web performance degrades incrementally with every PR — small bundle bloat, slow resource loads, and worsening Core Web Vitals add up to slow page loads and poor user experience that no one notices until it is too late. This Skill eliminates that blind spot by measuring actual performance data and comparing it against baselines.
Core Features & Use Cases
- Baseline Capture: Record performance metrics (load times, Core Web Vitals, resource sizes) for your site before making changes.
- PR Regression Checks: Compare pre-merge performance against baselines to catch slowdowns before they ship.
- Trend Tracking: Monitor performance drift over time to identify gradual degradation.
- Use Case: A frontend team can run this skill on every PR to ensure new code or dependencies do not increase page load time beyond acceptable thresholds.
Quick Start
Use the benchmark skill to run a full performance audit and baseline comparison for your production site's homepage.