I wouldn’t use most of the classes from Zend Framework, that’s why I’m looking for the thinnest possible ZF configuration.
Is there a better way of finding what I really need other than deleting the whole library/Zend folder, then putting back files based on the error messages that I receive?
I have not used it myself, but http://blog.fedecarg.com/2009/02/01/zend-framework-automatic-dependency-tracking/ may be what you are looking for.