Sign the dist as the last step before creating the archive. Take care not to modify/regenerate dist meta files or the manifest.

Error: Old SIGNATURE detected. Please inform the module author to regenerate SIGNATURE using Module::Signature version 0.82 or newer. gpg: Signature made Sat 24 Feb 2007 06:57:31 PM JST gpg: using DSA key 642BA2984E758317 gpg: Can't check signature: No public key ==> BAD/TAMPERED signature detected! <==

Add a META.json to the distribution. Your buildtool should be able to autogenerate it.

Add 'use warnings' (or its equivalents) to all modules, or convince us that your favorite module is well-known enough and people can easily see the modules warn when something bad happens.

Error: Win32::Exe, Win32::Exe::Base, Win32::Exe::DataDirectory, Win32::Exe::DebugDirectory, Win32::Exe::DebugTable, Win32::Exe::IconFile, Win32::Exe::PE, Win32::Exe::PE::Header, Win32::Exe::PE::Header::PE32, Win32::Exe::Resource, Win32::Exe::Resource::GroupIcon, Win32::Exe::Resource::Icon, Win32::Exe::Resource::Manifest, Win32::Exe::Resource::Version, Win32::Exe::ResourceData, Win32::Exe::ResourceEntry, Win32::Exe::ResourceEntry::Id, Win32::Exe::ResourceEntry::Name, Win32::Exe::ResourceTable, Win32::Exe::Section, Win32::Exe::Section::Code, Win32::Exe::Section::Data, Win32::Exe::Section::Debug, Win32::Exe::Section::Exports, Win32::Exe::Section::Imports, Win32::Exe::Section::Resources

Add all modules contained in this distribution to the META.yml field 'provides'. Module::Build or Dist::Zilla::Plugin::MetaProvides do this automatically for you.

Add a 'repository' resource to the META.yml via 'meta_add' accessor (for Module::Build) or META_ADD parameter (for ExtUtils::MakeMaker).

This is not a critical issue. Currently mainly informative for the CPANTS authors. It might be removed later.