If you haven't already set your NPM author info, now you should:
npm set init.author.name "Your Name"
npm set init.author.email "you@example.com"
npm set init.author.url "http://yourblog.com"
npm adduser
When using directives, you often need to pass parameters to the directive. This can be done in several ways. The first 3 can be used whether scope is true or false. This is still a WIP, so validate for yourself.
Raw Attribute Strings
<div my-directive="some string" another-param="another string"></div>