Recently we finished a project that was being moved to Pantheon.
We created a couple custom scripts for pushing data into the pantheon environment, and for pulling data down for continuous integration runs.
The scripts require the Terminus CLI tool created by Pantheon to interact with it's service.
Terminus is a composer project, but it's dependencies don't align with the latest Drupal sites. It's best to install it as a phar file and run it that way.