Presumably command output with no chrome at all (only text content) would work well in a screen reader. So, I'd think the most accessible thing (today) would be

Presumably command output with no chrome at all (only text content) would work well in a screen reader. So, I'd think the most accessible thing (today) would be to have an escape hatch to strip the output to its bones. Someone else who knows more about accessibility may know more though!