I stumbled over Pod::Functions which provides a list of all Perl builtins listed in perlfunc plus short-description.

use strict;
use warnings;
use Data::Dump qw/pp dd/;
use Pod::Functions;

pp '\%Flavor: ', \%Flavor;
pp '\%Type_Description: ', \%Type_Description;
pp '\@Type_Order: ', \@Type_Order;
pp '\%Kinds: ', \%Kinds;
pp '\%Type: ', \%Type;
[download]

(
  "\\%Flavor: ",
  {
    "-X"               => "a file test (-r, -x, etc)",
    "__FILE__"         => "the name of the current source file",
    "__LINE__"         => "the current source line number",
    "__PACKAGE__"      => "the current package",
    "__SUB__"          => "the current subroutine, or C<undef> if not 
+in a subroutine",
    "abs"              => "absolute value function",
    "accept"           => "accept an incoming socket connect",
    "alarm"            => "schedule a SIGALRM",
    "atan2"            => "arctangent of Y/X in the range -PI to PI",
 ...
[download]

But it doesn't have an option to return the usage examples, like

    split /PATTERN/,EXPR,LIMIT
    split /PATTERN/,EXPR
    split /PATTERN/
[download]

any standard recommendation how to get this, without hacking it with Pod::Simple et al?