All reports of composer-package-without-pkg-php-tools-builddep for the archive. The extended description of this tag is:
The package contains a composer.json file but doesn't build-depend on pkg-php-tools.
pkg-php-tools is the recommended tool for building PHP Composer packages. For more information, install it and read the included README.Composer.
This tag has not been emitted in any package tested by Lintian.