Carp::Assert::More is a set of wrappers around the Carp::Assert functions to make the habit of writing assertions even easier. Everything in here is effectively syntactic sugar. There's no technical reason to use assert_isa( $foo, 'HTML::Lint' ); instead of assert( defined $foo ); assert( ref($foo) eq 'HTML::Lint' ); other than readability and simplicity of the code. My intent here is to make common assertions easy so that we as programmers have no excuse to not use them. WWW: https://metacpan.org/release/Carp-Assert-More