Snap.SVG Animator is a plugin for Animate CC that allows you to design on the timeline and export animated SVG content
check out the original blog post I wrote.
The latest version supports scripting both inside of the actions panel and
by exporting movieclips from your library and dynamically adding and scripting them.
More info can be found in the video above and you can install the plugin from the Adobe addons portal here.
You can check out this blog post I wrote about Snap.SVG Animator on the Animate Team Blog