diff --git a/NEXT_STEPS.md b/NEXT_STEPS.md
index be8474f..e7294ef 100644
--- a/NEXT_STEPS.md
+++ b/NEXT_STEPS.md
@@ -16,6 +16,7 @@ Estado al cierre:
   - `arts/timr/engine-timers.ts` delega `TimerHandle` cancel/reschedule en `timer-handle.ts`.
   - `arts/stor/engine-storage.ts` delega IDs de adapter, bus keys y suscripciones cross-tab en `adapter-registry.ts`.
   - `arts/stor/engine-storage.ts` delega el registro de defaults conflictivos en `defaults-registry.ts`.
+  - `arts/sess/engine-session.ts` delega la clasificacion `none/anonymous/identified` en `session-identity.ts`.
 - Integracion total ampliada: `Auth.signOut()` valida anonimizacion, invalidacion de `Permissions` y evento `Cache.invalidate`.
 - Tanda focalizada verde: `npx vitest run src/arts/conn src/libs/cach src/arts/cach src/svrs/cach src/arts/auth src/svrs/auth src/libs/auth src/arts/aapp/test/ecosystem.integration.test.ts` -> 19 archivos, 82 tests.
 - `/test/ecosystem` revisado en navegador: carga sin errores de consola, `ar` cambia a `rtl`, Formats se actualiza por locale, Perm cambia con rol `viewer`, Cach re-scopea por locale y Conn loopback publica/recibe.
diff --git a/src/arts/sess/engine-session.ts b/src/arts/sess/engine-session.ts
index 31ba684..a48e16c 100644
--- a/src/arts/sess/engine-session.ts
+++ b/src/arts/sess/engine-session.ts
@@ -19,9 +19,6 @@ import {
 	FIELD_CREDENTIAL,
 	FIELD_DATA,
 	FIELD_USER,
-	IDENTITY_ANONYMOUS,
-	IDENTITY_IDENTIFIED,
-	IDENTITY_NONE,
 	REFRESH_STATUS_EXPIRED,
 	REFRESH_STATUS_FAILED,
 	REFRESH_STATUS_REFRESHED,
@@ -52,6 +49,7 @@ import {
 	hydrateSessionStorage,
 	wireSessionStorageSync
 } from './session-sync.ts';
+import { computeSessionIdentity } from './session-identity.ts';
 import { checkSessionInvariants, validateSessionCandidate } from './session-validation.ts';
 import type {
 	AdoptResultField,
@@ -63,7 +61,6 @@ import type {
 	Session,
 	SessionActor,
 	SessionChange,
-	SessionIdentityState,
 	SessionListener
 } from './types.ts';
 
@@ -149,11 +146,6 @@ export function createEngineSession<TUser, TCredential = undefined, TData = unde
 
 	// ── State helpers ───────────────────────────────────────────────────────
 
-	function computeIdentity(s: Snap | null): SessionIdentityState {
-		if (s === null) return IDENTITY_NONE;
-		return s.user === null ? IDENTITY_ANONYMOUS : IDENTITY_IDENTIFIED;
-	}
-
 	/**
 	 * Apply a snapshot that came from outside this engine (storage event,
 	 * BroadcastChannel). Dedups against the current snapshot so a storage
@@ -164,10 +156,10 @@ export function createEngineSession<TUser, TCredential = undefined, TData = unde
 	function applyExternalChange(next: Snap | null): void {
 		const prev = snapshot;
 		if (sameSnapshot(prev, next)) return;
-		const fromIdentity = computeIdentity(prev);
+		const fromIdentity = computeSessionIdentity(prev);
 		generation += 1;
 		snapshot = next;
-		const toIdentity = computeIdentity(next);
+		const toIdentity = computeSessionIdentity(next);
 		dispatch({
 			event: EVENT_EXTERNAL_CHANGED,
 			current: next,
@@ -210,11 +202,11 @@ export function createEngineSession<TUser, TCredential = undefined, TData = unde
 		event: typeof EVENT_ADOPTED | typeof EVENT_ADOPTED_SERVER | typeof EVENT_REFRESHED
 	): void {
 		const prev = snapshot;
-		const fromIdentity = computeIdentity(prev);
+		const fromIdentity = computeSessionIdentity(prev);
 		generation += 1;
 		snapshot = next;
 		persist(next);
-		const toIdentity = computeIdentity(next);
+		const toIdentity = computeSessionIdentity(next);
 		dispatch({
 			event,
 			current: next,
@@ -230,7 +222,7 @@ export function createEngineSession<TUser, TCredential = undefined, TData = unde
 		revoke?: RevokeResult
 	): void {
 		const prev = snapshot;
-		const fromIdentity = computeIdentity(prev);
+		const fromIdentity = computeSessionIdentity(prev);
 		generation += 1;
 		snapshot = null;
 		persist(null);
@@ -239,7 +231,7 @@ export function createEngineSession<TUser, TCredential = undefined, TData = unde
 			current: null,
 			previous: prev,
 			generation,
-			identity: { from: fromIdentity, to: IDENTITY_NONE },
+			identity: { from: fromIdentity, to: computeSessionIdentity(null) },
 			revoke
 		});
 		broadcast(event);
@@ -265,7 +257,7 @@ export function createEngineSession<TUser, TCredential = undefined, TData = unde
 			return generation;
 		},
 		get identity() {
-			return computeIdentity(snapshot);
+			return computeSessionIdentity(snapshot);
 		},
 
 		async adopt(input) {
@@ -396,8 +388,8 @@ export function createEngineSession<TUser, TCredential = undefined, TData = unde
 						previous: snapshot,
 						generation,
 						identity: {
-							from: computeIdentity(snapshot),
-							to: computeIdentity(snapshot)
+							from: computeSessionIdentity(snapshot),
+							to: computeSessionIdentity(snapshot)
 						},
 						error: err
 					});
@@ -511,7 +503,7 @@ export function createEngineSession<TUser, TCredential = undefined, TData = unde
 			if (disposed) return () => {};
 			listeners.add(listener);
 			try {
-				const identity = computeIdentity(snapshot);
+				const identity = computeSessionIdentity(snapshot);
 				listener({
 					event: EVENT_INITIAL_SESSION,
 					current: snapshot,
diff --git a/src/arts/sess/session-identity.ts b/src/arts/sess/session-identity.ts
new file mode 100644
index 0000000..7615658
--- /dev/null
+++ b/src/arts/sess/session-identity.ts
@@ -0,0 +1,9 @@
+import { IDENTITY_ANONYMOUS, IDENTITY_IDENTIFIED, IDENTITY_NONE } from './consts.ts';
+import type { Session, SessionIdentityState } from './types.ts';
+
+export function computeSessionIdentity(
+	session: Pick<Session<unknown, unknown, unknown>, 'user'> | null
+): SessionIdentityState {
+	if (session === null) return IDENTITY_NONE;
+	return session.user === null ? IDENTITY_ANONYMOUS : IDENTITY_IDENTIFIED;
+}