It would also prudent to throw a next unless $g->can($command); or something in there so that things don't go bewm if $command doesn't exist (ie, someone made a tipo [sic.]).

You might even want to throw in some security checks for good measure...

foreach (@commands) {
    my ( $command, @args ) = @$_;

    warn("Naughty, $command not allowed..."), next 
      unless $permitted{$command};

    warn("Ooops, I can't find $command..."), next
      unless $g->can($command);

    $g->$command( @args );
}
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    --k.