Figured so.

After sleeping over it, I'm wondering if there's any particular reason you didn't something along the following lines?

my ($prefix, $filepath) = split '/', $path, 2;

# ...

  @names = grep m!\A/?\Q$filepath\E(?:/.*)?\z!s, @names;

  if(@names == 1) {
    require Archive::Tar;
    # ...
    exit 0
  }

  {
    my %choices = ();
    # ...
[download]

The sole really significant difference I can see is that it doesn't catch the "trailing stuff after name" case. Am I missing something?

Or should I just be patient and wait for the column? :-)