App::cpanm::meta::checker "cpanm" installs a few auxiliary files: $SITELIB/.meta/DISTNAME-DISTVERSION/MYMETA.json $SITELIB/.meta/DISTNAME-DISTVERSION/install.json These files describe several things, such as dependencies declared by upstream, and sniffed extra context. This tool exists to read those files, and verify that their dependencies are still holding true, that no new conflicting dependencies have been installed and are silently sitting there broken. Also, as "cpanm"'s auxiliary files are really a prototype for what may eventually become a tool-chain standard, this tool is also a prototype for a tool-chain standard checker. INSTALLATION This is a Perl module distribution. It should be installed with whichever tool you use to manage your installation of Perl, e.g. any of cpanm . cpan . cpanp -i . Consult http://www.cpan.org/modules/INSTALL.html for further instruction. Should you wish to install this module manually, the procedure is perl Makefile.PL make make test make install COPYRIGHT AND LICENSE This software is copyright (c) 2017 by Kent Fredric . This is free software; you can redistribute it and/or modify it under the same terms as the Perl 5 programming language system itself.