I last used it in 2008, but at the time it was still Motif I’m pretty sure. I’m not an IC designer though; I was one of the few people around the company who was happy writing SKILL code to do integration with our product :D.
Edit for people who haven’t used this stuff: SKILL is the scripting language baked into Cadence tools. It’s lispy, but also allows you to move function names out of the parens. So you can (frob) or frob()