TimToady stopped by the CB while this thread was being discussed, and said that by default the brackets always work in list context. He and some others pointed to S02:1377 as the documentation. I've not been keeping very current lately on Perl6, but I hope the link helps.

In reply to Re^2: [Perl 6] single-value vs. array slices by mr_mischief
in thread [Perl 6] single-value vs. array slices by John M. Dlugosz

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