performance-budgets

What problem does it solve?

This Skill helps you replace subjective “it feels fast” goals with measurable performance thresholds that protect real user experience and prevent regressions.

Core Features & Use Cases

• Defines a complete performance budget using metric, threshold, percentile, and consequence so it is a contract—not a vanity dashboard.
• Covers the three budget axes (time, size, count) to catch different classes of performance regressions early.
• Applies widely used standards like Core Web Vitals (LCP, INP, CLS), the RAIL model, and Lighthouse budgets.json with clear guidance for lab vs field vs synthetic measurement.
• Operationalizes enforcement by treating budget breach as a build/deploy failure with calibration and per-route budget discipline.

Quick Start

Use performance-budgets to define a p75 Core Web Vitals budget for each meaningful route and make CI fail automatically when the budget is breached.