I've noticed that the schema reads
host:
description: "Circle CI server host."
type: "string"
secret: false
required: true
default: "circleci.com"
however, the actions are hardcoded to use circleci.com and not taken from the configuration , I guess this covers most use cases, however for on-site installations this schema is at the very least misleading.
Thanks for sharing your pack, I appreciate the effort.