[pyrophane]

Absolutely needed. While the Definitely Typed project is a commendable effort, the definitions themselves are often incomplete and out of date, which is problematic because, at least in my mind, an out of date type definition is worse than having no definition at all.

The problem core of the problem is that many of the definitions they host are contributed as one-offs by developers who create them as needed, and often there is no one responsible for making sure they get updated in lock step with the library itself.

The only way I can think to solve this is to have a contributor to the library itself be responsible for maintaining its type definition, so that keeping it up to date becomes part of the release process. Of course, really everyone should just switch development to typescript so that the defs get generated automatically ;)