No worky here; explicit lists & renumber options do not make any difference. 

# perl -MText::Autoformat -e 'print $Text::Autoformat::VERSION , "\n"'
+ ; cat p.pl ; echo ; perl p.pl
1.67

[download]
#!/usr/local/bin/perl

use warnings; use strict;

use Text::Autoformat qw[ autoformat ];

my $in = do { local $/; <DATA> };
my $opts = { 'lists '=> 'number' , 'renumber' => 1 };

printf "#  PRE\n%s\n#  POST: text , option\n%s\n#  POST: option, text\
+n%s\n"
  , $in
  , autoformat( $in   , $opts )
  , autoformat( $opts , $in   )
  ;

__DATA__
1. Analyze problem
3. Design algorithm
1. Code solution

#  PRE
1. Analyze problem
3. Design algorithm
1. Code solution

#  POST: text , option
1. Analyze problem
3. Design algorithm
1. Code solution

#  POST: option, text
1. Analyze problem
3. Design algorithm
1. Code solution

[download]

Pod seems to be a mess. In "Synopsis", syntax is ... 

    # Configuration...

       $formatted = autoformat $rawtext, { %options };

[download]

... later in "Bulleting and (re-)numbering" section, it is ... 

      # Don't recognize Roman numerals or alphabetics as list markers.
+..
       autoformat { lists => 'number, bullet' }, $text;

[download]

Addendum: Problems persists with Text::Autoformat 1.72, latest stable version.

In reply to Re^2: Module Text::Autoformat not working by parv
in thread Module Text::Autoformat not working; perlbrew not installing by marek1703

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