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

Define the license if you are using in Build.PL. If you are using MakeMaker (Makefile.PL) you should upgrade to ExtUtils::MakeMaker version 6.31.

Add =head1 LICENSE and/or the proper text of the well-known license to the main module in your code.

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: Cache::BaseCache, Cache::BaseCacheTester, Cache::Cache, Cache::CacheBenchmark, Cache::CacheMetaData, Cache::CacheTester, Cache::CacheUtils, Cache::FileCache, Cache::MemoryCache, Cache::Object, Cache::SharedCacheUtils, Cache::SharedMemoryCache, Cache::SizeAwareCache, Cache::SizeAwareCacheTester, Cache::SizeAwareFileCache, Cache::SizeAwareMemoryCache, Cache::SizeAwareSharedMemoryCache

Fix the version numbers so that version::is_lax($version) returns true.

Error:

• lib/Cache/SizeAwareCache.pm: HASH(0x559ce7845b10)

Add SECURITY(.pod|md). See Software::Security::Policy.

Add SECURITY(.pod|md) and add a contact address. See Software::Security::Policy.

Add CONTRIBUTING(.pod|md). See https://docs.github.com/en/communities/setting-up-your-project-for-healthy-contributions/setting-guidelines-for-repository-contributors.