An open book
The Guide to a13i documents how AI systems and accessible interfaces interact, and how to build for humans and machines from the same code. Open source, CC BY 4.0.
a13i
Accessibility AI. Interfaces that work for assistive technology tend to work for AI agents, so we engineer, measure, and advocate for both as one discipline. People first, always.
An evidence corpus
Reproducible experiments with pinned models and published prompts. Claims without experiments are labeled hypotheses, here and everywhere we publish.
The double dividend
A real button, a labeled field, an honest heading outline: each serves a blind human using a screen reader and an AI agent reading the DOM. One hour of engineering, paid out twice.
People first
Accessibility exists for disabled people. Any practice that helps machines while degrading human accessibility fails a13i review by definition. AI does not make a site accessible by itself, and we will never claim it does.