oraAgentEventSeverity is a relative measure of the severity of this event, per its description, taking the values warning(1), alert(2), or clear(-1). An admin uses this to triage which rows in oraAgentEventTable need immediate attention, treating alert(2) as more urgent than warning(1) and clear(-1) as a since-resolved condition. For example, seeing oraAgentEventSeverity change from alert(2) to clear(-1) for the same event tells an admin the underlying Oracle problem has been resolved.