What problem does it solve?
This Skill solves the common pain point of undetected performance regressions reaching production, and the lack of consistent, shareable performance baselines across development teams, which makes it difficult to enforce performance standards or diagnose speed issues proactively.
Core Features & Use Cases
- Multi-Mode Performance Testing: Supports 4 core testing workflows: page performance (Core Web Vitals, resource sizes, network request analysis), API performance (latency percentile measurement, load testing), build performance (build time, HMR speed, test suite duration tracking), and before/after change comparison.
- Shared Baseline Tracking: Saves performance metrics to a git-tracked directory so entire teams can reference consistent performance targets and automatically flag regressions between versions.
- Use Case: Run this Skill before merging a PR that modifies critical user paths to verify no performance regressions were introduced, or before a product launch to confirm all performance SLA targets are met.
Quick Start
Use the benchmark skill to measure your application's current page load performance and save the results as a shared baseline for future regression checks.