+our $VERSION = '1.11';
+
+=head1 DESCRIPTION
+
+This class provides a generic API for messages (the so-called I<reports>) generated by the parser, filtered by the tool and the command, and handled by the action.
+The tool has authority for deciding in which subclass of this one reports should be blessed.
+
+Reports are classified by I<kinds>.
+The C<Diag> kind is reserved for diagnostics.
+
+=cut