a11y-violation-gate

Overview

A binary "all or nothing" a11y gate blocks every PR on a project with accumulated debt, so teams disable it. The ratchet pattern fixes this: the gate fails only on new violations vs. a stored baseline. Existing violations are grandfathered; fixes shrink the baseline.

This skill builds that gate, aggregating outputs from any combination of the five scanners covered by axe-a11y (axe-core, pa11y, Lighthouse a11y, WAVE, IBM Equal Access).

Sibling gates with the same architecture: data-quality-gate, visual-baseline-gate, contract-compatibility-gate, perf-budget-gate.

When to use