DISPLAY_NAME_FIELD

const DISPLAY_NAME_FIELD: "displayName" = 'displayName'

Defined in: src/Logger.ts:44

Reserved static-field key holding an actor’s human-readable name — what Actor.displayName() resolved to (#891).

A field rather than a new Logger member, because Logger is a documented extension point: adding a required method would break every third-party implementation, while a field costs nothing. It also carries itself: JsonLogger and the OTel adapter already spread the static fields, so the name lands there as a separate queryable key/attribute with no code of their own. Only ConsoleLogger treats it specially, lifting it into the line head where a human reads it.

The name never replaces source — the path stays the identity, and everything that routes, correlates or aggregates keeps using it.