Axe-Core Rules Reference Skill

Canonical source: examples/AXE_RULES_REFERENCE.md and examples/AXE_RULES_COVERAGE.md in mgifford/ACCESSIBILITY.md This skill is derived from those files. When in doubt, the example is authoritative. Note: the canonical files are organized around a specific test-fixture scanner project (numbered test pages). This skill re-presents the same rule set and severities as a general-purpose reference, independent of any particular fixture.

Apply these rules when writing, reviewing, or debugging axe-core scans.

Core Principle

Axe-core catches ~30–40% of WCAG issues automatically. It is the baseline, not the ceiling. Always pair automated scanning with manual keyboard and screen reader testing.