GUIs are great, but not having a CLI is an anti-pattern. Also, having an API, but no reference CLI is an anti-pattern (depends on your API, but if your examples

GUIs are great, but not having a CLI is an anti-pattern. Also, having an API, but no reference CLI is an anti-pattern (depends on your API, but if your examples are poorly constructed bash scripts with cURL lines you need a proper CLI).