Progressive Enhancement Accessibility Skill

Canonical source: examples/PROGRESSIVE_ENHANCEMENT_BEST_PRACTICES.md in mgifford/ACCESSIBILITY.md This skill is derived from that file. When in doubt, the example is authoritative.

Apply these rules when building any web feature or reviewing architecture decisions.

Core Mandate

Start with a solid foundation that works for every user, then layer enhancements. Every user — regardless of browser capability, network speed, assistive technology, or JavaScript availability — must be able to access core content and complete core tasks.