Working on models in Fornjot should be convenient. That means, creating a model should be straight-forward and not require lots of boilerplate code. Accessing and manipulating parameters through the UI should be easy. As should inspecting your model, to make sense of what you've done.

This milestone is focused on the modeling experience itself, not the features being used to create models. More advanced modeling features (like CSG, more flexible sketches, etc.) are out of scope of this milestone, as are general UI issues that are not directly related to modeling.