understand

Install command: 
brew install --cask understand

Name: SciTools Understand

Code visualization and exploration tool

https://scitools.com/features

Cask JSON API: /api/cask/understand.json

Cask code: understand.rb on GitHub

Current version: 7.1.1233

Requirements: macOS >= 10.11

Analytics:

Installs (30 days)
understand 3
Installs (90 days)
understand 8
Installs (365 days)
understand 81