Which option runs packaging toolkit validation with the "--self-service" tag?

The option that runs packaging toolkit validation with the "--self-service" tag is the Splunk AppInspect API. This API provides a way for developers to validate their apps against Splunk's best practices and guidelines programmatically. By using the "--self-service" tag, it ensures that the validation checks can be automated and integrated into continuous integration pipelines or other automated processes.

The Splunk AppInspect CLI, while also used for validation, primarily functions as a command-line interface tool that allows users to manually check their applications. It has different options but does not specifically utilize the "--self-service" tag in the same manner as the API.

The AppCompat Validator and App Dependency Checker focus on other aspects of app validation, such as compatibility checks and dependency management, rather than the overall packaging validation that includes the self-service capabilities provided by the API. This distinction highlights why the API is particularly suited for this type of validation.