Talking about The Toolsmiths and content creation, the single most impressive content creation workflow demonstration I have seen so far is probably the one they made a post about a few years ago.

In this video, Eskil Steenberg presents the tool he wrote for his game, Love. The tool gives an instant feedback and shows the results of modifications just as they go, while any concept of loading, saving, exporting, synchronizing or even file in general is gone, abstracted away.