Start with the decision behind each diagnostic
List the signals the professional needs and what they do with each result. A title, canonical, heading or robots directive can be present, missing, repeated or difficult to interpret in context. Decide how the tool displays those differences without turning every unusual value into the same warning. Keep the inspected source clear and let the user reach the underlying evidence. Begin with a focused set of diagnostics that supports a real audit task before adding many counters with no defined use.
