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: Sah::Schema::perl::distname, Sah::Schema::perl::filename, Sah::Schema::perl::funcname, Sah::Schema::perl::modargs, Sah::Schema::perl::modname, Sah::Schema::perl::modname_or_prefix, Sah::Schema::perl::modnames, Sah::Schema::perl::modprefix, Sah::Schema::perl::modprefixes, Sah::Schema::perl::pm_filename, Sah::Schema::perl::pod_filename, Sah::Schema::perl::pod_or_pm_filename, Sah::Schema::perl::podname, Sah::Schema::perl::qualified_funcname, Sah::Schema::perl::unqualified_funcname, Sah::Schema::perl::version, Sah::SchemaR::perl::distname, Sah::SchemaR::perl::filename, Sah::SchemaR::perl::funcname, Sah::SchemaR::perl::modargs, Sah::SchemaR::perl::modname, Sah::SchemaR::perl::modname_or_prefix, Sah::SchemaR::perl::modnames, Sah::SchemaR::perl::modprefix, Sah::SchemaR::perl::modprefixes, Sah::SchemaR::perl::pm_filename, Sah::SchemaR::perl::pod_filename, Sah::SchemaR::perl::pod_or_pm_filename, Sah::SchemaR::perl::podname, Sah::SchemaR::perl::qualified_funcname, Sah::SchemaR::perl::unqualified_funcname, Sah::SchemaR::perl::version, Sah::Schemas::Perl

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.