It's true—we removed YAML examples from the docs. While we do support YAML, we discourage users from writing it manually.
Right now, we're testing YAML support specifically for Go users in an early phase.
This tool is designed for end-to-end testing of Go applications, not as a CI workflow engine.
Since the CLI exists in multiple languages, YAML support remains for compatibility, but it's not the primary interface we want users to rely on.