diff --git a/NEXT_STEPS.md b/NEXT_STEPS.md
index ad6b725..e42bb76 100644
--- a/NEXT_STEPS.md
+++ b/NEXT_STEPS.md
@@ -18,6 +18,7 @@ Estado al cierre:
   - `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`.
   - `arts/sess/engine-session.ts` delega snapshot, generation, dispatch, persistencia y commits en `session-state.ts`.
+  - `arts/sess/engine-session.ts` delega la resolucion de revoke local/global/degradado en `session-revoke.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 d2006fc..118add0 100644
--- a/src/arts/sess/engine-session.ts
+++ b/src/arts/sess/engine-session.ts
@@ -21,11 +21,7 @@ import {
 	REFRESH_STATUS_FAILED,
 	REFRESH_STATUS_REFRESHED,
 	REFRESH_STATUS_SKIPPED,
-	REVOKE_REASON_MISSING_REVOKE_URL,
-	REVOKE_REASON_NETWORK_ERROR,
 	REVOKE_REASON_NO_SESSION,
-	REVOKE_REASON_SERVER_REJECTED,
-	REVOKE_SCOPE_GLOBAL,
 	REVOKE_SCOPE_LOCAL,
 	SESSION_DIAGNOSTIC_EVENTS,
 	SKIP_REASON_NO_REFRESH_FN,
@@ -41,6 +37,7 @@ import {
 	readField,
 	toError
 } from './session-helpers.ts';
+import { resolveSessionRevoke } from './session-revoke.ts';
 import {
 	createSessionBroadcastSync,
 	hydrateSessionStorage,
@@ -312,78 +309,14 @@ export function createEngineSession<TUser, TCredential = undefined, TData = unde
 			ensureLive(ENGINE_METHOD_REVOKE);
 
 			const current = state.current;
-			if (current === null) {
-				return {
-					localRevoked: true,
-					globalRevoked: false,
-					scope: REVOKE_SCOPE_LOCAL,
-					reason: REVOKE_REASON_NO_SESSION
-				};
-			}
-
-			// Default to global when an `onRevoke` handler is configured —
-			// cookie-auth apps almost always want the server-side cookie
-			// cleared along with the local snapshot.
-			const requestedScope =
-				opts.scope ?? (onRevoke !== undefined ? REVOKE_SCOPE_GLOBAL : REVOKE_SCOPE_LOCAL);
-			let result: RevokeResult;
-
-			if (requestedScope === REVOKE_SCOPE_GLOBAL) {
-				if (onRevoke === undefined) {
-					result = {
-						localRevoked: true,
-						globalRevoked: false,
-						scope: REVOKE_SCOPE_LOCAL,
-						reason: REVOKE_REASON_MISSING_REVOKE_URL
-					};
-					emitSessionDiagnostic(diagnostics, SESSION_DIAGNOSTIC_EVENTS.REVOKE_GLOBAL_NO_HANDLER, {
-						error: REVOKE_REASON_MISSING_REVOKE_URL
-					});
-				} else {
-					try {
-						const ok = await onRevoke(current, { logger });
-						if (ok) {
-							result = {
-								localRevoked: true,
-								globalRevoked: true,
-								scope: REVOKE_SCOPE_GLOBAL
-							};
-						} else {
-							result = {
-								localRevoked: true,
-								globalRevoked: false,
-								scope: REVOKE_SCOPE_LOCAL,
-								reason: REVOKE_REASON_SERVER_REJECTED
-							};
-							emitSessionDiagnostic(
-								diagnostics,
-								SESSION_DIAGNOSTIC_EVENTS.REVOKE_GLOBAL_SERVER_REJECTED,
-								{ error: REVOKE_REASON_SERVER_REJECTED }
-							);
-						}
-					} catch (err) {
-						result = {
-							localRevoked: true,
-							globalRevoked: false,
-							scope: REVOKE_SCOPE_LOCAL,
-							reason: REVOKE_REASON_NETWORK_ERROR
-						};
-						emitSessionDiagnostic(
-							diagnostics,
-							SESSION_DIAGNOSTIC_EVENTS.REVOKE_GLOBAL_HANDLER_FAILED,
-							{ error: toError(err) }
-						);
-					}
-				}
-			} else {
-				result = {
-					localRevoked: true,
-					globalRevoked: false,
-					scope: REVOKE_SCOPE_LOCAL
-				};
-			}
-
-			state.commitRevocation(EVENT_REVOKED, result);
+			const result = await resolveSessionRevoke({
+				current,
+				options: opts,
+				onRevoke,
+				logger,
+				diagnostics
+			});
+			if (current !== null) state.commitRevocation(EVENT_REVOKED, result);
 			return result;
 		},
 
diff --git a/src/arts/sess/session-revoke.ts b/src/arts/sess/session-revoke.ts
new file mode 100644
index 0000000..4022d3c
--- /dev/null
+++ b/src/arts/sess/session-revoke.ts
@@ -0,0 +1,98 @@
+import {
+	REVOKE_REASON_MISSING_REVOKE_URL,
+	REVOKE_REASON_NETWORK_ERROR,
+	REVOKE_REASON_NO_SESSION,
+	REVOKE_REASON_SERVER_REJECTED,
+	REVOKE_SCOPE_GLOBAL,
+	REVOKE_SCOPE_LOCAL,
+	SESSION_DIAGNOSTIC_EVENTS
+} from './consts.ts';
+import { emitSessionDiagnostic, type SessionDiagnostics } from './diagnostics.ts';
+import { toError } from './session-helpers.ts';
+import type { Logger } from '$libs/logr';
+import type { RevokeFn, RevokeOptions, RevokeResult, Session } from './types.ts';
+
+export interface ResolveSessionRevokeInput<TUser, TCredential = undefined, TData = undefined> {
+	readonly current: Session<TUser, TCredential, TData> | null;
+	readonly options: RevokeOptions;
+	readonly onRevoke?: RevokeFn<TUser, TCredential, TData>;
+	readonly logger?: Logger;
+	readonly diagnostics: SessionDiagnostics;
+}
+
+/**
+ * Resolve whether revoke is local, global, or degraded. The caller owns the
+ * actual state mutation so this helper remains pure from the engine runtime.
+ */
+export async function resolveSessionRevoke<TUser, TCredential = undefined, TData = undefined>({
+	current,
+	options,
+	onRevoke,
+	logger,
+	diagnostics
+}: ResolveSessionRevokeInput<TUser, TCredential, TData>): Promise<RevokeResult> {
+	if (current === null) {
+		return {
+			localRevoked: true,
+			globalRevoked: false,
+			scope: REVOKE_SCOPE_LOCAL,
+			reason: REVOKE_REASON_NO_SESSION
+		};
+	}
+
+	const requestedScope =
+		options.scope ?? (onRevoke !== undefined ? REVOKE_SCOPE_GLOBAL : REVOKE_SCOPE_LOCAL);
+
+	if (requestedScope !== REVOKE_SCOPE_GLOBAL) {
+		return {
+			localRevoked: true,
+			globalRevoked: false,
+			scope: REVOKE_SCOPE_LOCAL
+		};
+	}
+
+	if (onRevoke === undefined) {
+		emitSessionDiagnostic(diagnostics, SESSION_DIAGNOSTIC_EVENTS.REVOKE_GLOBAL_NO_HANDLER, {
+			error: REVOKE_REASON_MISSING_REVOKE_URL
+		});
+		return {
+			localRevoked: true,
+			globalRevoked: false,
+			scope: REVOKE_SCOPE_LOCAL,
+			reason: REVOKE_REASON_MISSING_REVOKE_URL
+		};
+	}
+
+	try {
+		const ok = await onRevoke(current, { logger });
+		if (ok) {
+			return {
+				localRevoked: true,
+				globalRevoked: true,
+				scope: REVOKE_SCOPE_GLOBAL
+			};
+		}
+
+		emitSessionDiagnostic(
+			diagnostics,
+			SESSION_DIAGNOSTIC_EVENTS.REVOKE_GLOBAL_SERVER_REJECTED,
+			{ error: REVOKE_REASON_SERVER_REJECTED }
+		);
+		return {
+			localRevoked: true,
+			globalRevoked: false,
+			scope: REVOKE_SCOPE_LOCAL,
+			reason: REVOKE_REASON_SERVER_REJECTED
+		};
+	} catch (err) {
+		emitSessionDiagnostic(diagnostics, SESSION_DIAGNOSTIC_EVENTS.REVOKE_GLOBAL_HANDLER_FAILED, {
+			error: toError(err)
+		});
+		return {
+			localRevoked: true,
+			globalRevoked: false,
+			scope: REVOKE_SCOPE_LOCAL,
+			reason: REVOKE_REASON_NETWORK_ERROR
+		};
+	}
+}