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: Kelp::Module::Whelk, Whelk, Whelk::Config, Whelk::Endpoint, Whelk::Endpoint::Parameters, Whelk::Exception, Whelk::Formatter, Whelk::Formatter::JSON, Whelk::Formatter::YAML, Whelk::OpenAPI, Whelk::Resource, Whelk::ResourceMeta, Whelk::Schema, Whelk::Schema::Definition, Whelk::Schema::Definition::Array, Whelk::Schema::Definition::Boolean, Whelk::Schema::Definition::Empty, Whelk::Schema::Definition::Integer, Whelk::Schema::Definition::Null, Whelk::Schema::Definition::Number, Whelk::Schema::Definition::Object, Whelk::Schema::Definition::String, Whelk::Schema::Definition::_Scalar, Whelk::Schema::ExtraRule, Whelk::Wrapper, Whelk::Wrapper::Simple, Whelk::Wrapper::WithStatus

List all modules used in the test suite in META.yml test_requires

Error:

• HTTP::Request::Common
• Path::Tiny
• Test::Deep

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.