As it stands there's not any built-in YAML validator on harness, similar to the Gitlab pipeline validator (https://docs.gitlab.com/ee/ci/pipeline_editor/index.html#validate-ci-configuration) that's baked into their editor. This becomes a problem when a pipeline fails because of invalid YAML in a subsequent stage after an hour and a half of execution. Please add automated validation of the YAML in the pipeline editor, and please at least add an option to immediately fail a pipeline for invalid YAML.