Valve have released the Half-Life: Alyx Workshop, including their animation toolset, AnimGraph, for creators to begin creating content in their Source 2 engine with the latest suite of tools.
From the documentation description:
“Source 2 AnimGraph is a data-driven system for dynamically compositing keyframed and procedural skeletal animation, and for controlling when to transition between compositions. It consists of two main parts: an editor for creating node-based graphs that define the animation behavior, and a runtime that evaluates the graphs during gameplay based in input from AI, navigation, environment, and other game systems.”
Find more information and download links here.