> In a redesigned shell Correct me if I'm wrong, but aren't exit codes an OS-level thing? That would be one hell of a redesign! Not that I wouldn't absolutely

> In a redesigned shell Correct me if I'm wrong, but aren't exit codes an OS-level thing? That would be one hell of a redesign! Not that I wouldn't absolutely love to have rich/structured return values, but that's already hard to do in a single-language system - even ignoring backwards compatibility, doing this in a traditional OS would require a level of cooperation I don't think the industry is capable of.