Type Alias: EventKeyDefinition

type EventKeyDefinition = z.infer<typeof EventKeyDefinition>;

A tenant's own key velocity rules group by (groupBy: 'key'), beside the subject and the promoted keys: a value in each event's attributes (path), indexed per event so a count over it is one range read. linkSubjects makes subjects whose events share a value linked (GET /subjects/:id/links). path and normalize are fixed once created.