You're mistaken - ghost is not a service consuming actions for itself - it's a CLI tool you run locally to drive workflows with sane default configs so you can easily drop into them and continue working or debugging in reliable and consistent infra, or have your agent do it. It is a better CLI for GH workflows (https://news.ycombinator.com/item?id=47982915), now whatever you were imagining.
What did you imagine it was?