"Glamorous Toolkit (GT) is the Moldable Development Environment. Version 1.0 embodies more than 6 years of development and is the result of some 14 years of research. Our goal is to make systems explainable by means of custom tools created for each problem. Glamorous Toolkit makes this possible by making the creation of custom tools inexpensive and seamless."
It introduces a new concept: Moldable Development. And it summarizes succinctly what it's about: creating custom tools for each development problem. Both of these are being exemplified in the article.
What else would have felt better for you?