diff --git a/frontend/src/auth/AuthContext.tsx b/frontend/src/auth/AuthContext.tsx
index d6d9c51..ef3e76d 100644
--- a/frontend/src/auth/AuthContext.tsx
+++ b/frontend/src/auth/AuthContext.tsx
@@ -13,7 +13,7 @@ import {
   getAuthenticatedAuthState,
   getUnauthenticatedAuthState,
   resolveAuthStateFromMe,
-  validateAuthMutationResponse,
+  authUserFromMutation,
 } from './authHelpers';
 
 interface AuthContextType extends AuthState {
@@ -63,7 +63,7 @@ export function AuthProvider({ children }: { children: ReactNode }) {
           },
         });
 
-        const user = validateAuthMutationResponse(response, 200);
+        const user = authUserFromMutation(response);
         if (!user) {
           setAuthState(getUnauthenticatedAuthState());
           throw new Error('Login failed');
@@ -91,7 +91,7 @@ export function AuthProvider({ children }: { children: ReactNode }) {
           },
         });
 
-        const user = validateAuthMutationResponse(response, 201);
+        const user = authUserFromMutation(response);
         if (!user) {
           setAuthState(getUnauthenticatedAuthState());
           throw new Error('Registration failed');
@@ -113,7 +113,7 @@ export function AuthProvider({ children }: { children: ReactNode }) {
     logoutMutation.mutate(undefined, {
       onSuccess: async () => {
         setAuthState(getUnauthenticatedAuthState());
-        await queryClient.removeQueries({ queryKey: getGetMeQueryKey() });
+        queryClient.removeQueries({ queryKey: getGetMeQueryKey() });
         navigate('/login');
       },
     });
diff --git a/frontend/src/auth/authHelpers.test.ts b/frontend/src/auth/authHelpers.test.ts
index 13fd032..99236d3 100644
--- a/frontend/src/auth/authHelpers.test.ts
+++ b/frontend/src/auth/authHelpers.test.ts
@@ -2,9 +2,8 @@ import { describe, expect, it } from 'vitest';
 import {
   getCheckingAuthState,
   getUnauthenticatedAuthState,
-  normalizeAuthenticatedUser,
   resolveAuthStateFromMe,
-  validateAuthMutationResponse,
+  authUserFromMutation,
   type AuthState,
 } from './authHelpers';
 
@@ -15,20 +14,6 @@ const previousState: AuthState = {
 };
 
 describe('authHelpers', () => {
-  it('normalizes a valid authenticated user payload', () => {
-    expect(normalizeAuthenticatedUser({ username: 'evan', is_admin: true })).toEqual({
-      username: 'evan',
-      is_admin: true,
-    });
-  });
-
-  it('rejects invalid authenticated user payloads', () => {
-    expect(normalizeAuthenticatedUser(null)).toBeNull();
-    expect(normalizeAuthenticatedUser({ username: 'evan' })).toBeNull();
-    expect(normalizeAuthenticatedUser({ username: 123, is_admin: true })).toBeNull();
-    expect(normalizeAuthenticatedUser({ username: 'evan', is_admin: 'yes' })).toBeNull();
-  });
-
   it('returns a checking state while preserving previous auth information', () => {
     expect(
       getCheckingAuthState({
@@ -49,6 +34,7 @@ describe('authHelpers', () => {
         meData: {
           status: 200,
           data: { username: 'evan', is_admin: false },
+          headers: new Headers(),
         },
         meError: undefined,
         meLoading: false,
@@ -66,6 +52,8 @@ describe('authHelpers', () => {
       resolveAuthStateFromMe({
         meData: {
           status: 401,
+          data: { code: 401, message: 'unauthorized' },
+          headers: new Headers(),
         },
         meError: undefined,
         meLoading: false,
@@ -105,9 +93,7 @@ describe('authHelpers', () => {
   it('returns the previous state with checking disabled when there is no decisive me result', () => {
     expect(
       resolveAuthStateFromMe({
-        meData: {
-          status: 204,
-        },
+        meData: undefined,
         meError: undefined,
         meLoading: false,
         previousState: {
@@ -123,35 +109,31 @@ describe('authHelpers', () => {
     });
   });
 
-  it('validates auth mutation responses by expected status and payload shape', () => {
+  it('extracts the user from successful login and register responses', () => {
     expect(
-      validateAuthMutationResponse(
-        {
-          status: 200,
-          data: { username: 'evan', is_admin: false },
-        },
-        200
-      )
+      authUserFromMutation({
+        status: 200,
+        data: { username: 'evan', is_admin: false },
+        headers: new Headers(),
+      })
     ).toEqual({ username: 'evan', is_admin: false });
 
     expect(
-      validateAuthMutationResponse(
-        {
-          status: 201,
-          data: { username: 'evan', is_admin: false },
-        },
-        200
-      )
-    ).toBeNull();
+      authUserFromMutation({
+        status: 201,
+        data: { username: 'evan', is_admin: true },
+        headers: new Headers(),
+      })
+    ).toEqual({ username: 'evan', is_admin: true });
+  });
 
+  it('returns null for unsuccessful auth mutation responses', () => {
     expect(
-      validateAuthMutationResponse(
-        {
-          status: 200,
-          data: { username: 'evan' },
-        },
-        200
-      )
+      authUserFromMutation({
+        status: 401,
+        data: { code: 401, message: 'unauthorized' },
+        headers: new Headers(),
+      })
     ).toBeNull();
   });
 });
diff --git a/frontend/src/auth/authHelpers.ts b/frontend/src/auth/authHelpers.ts
index b403cea..a514ddc 100644
--- a/frontend/src/auth/authHelpers.ts
+++ b/frontend/src/auth/authHelpers.ts
@@ -1,7 +1,11 @@
-export interface AuthUser {
-  username: string;
-  is_admin: boolean;
-}
+import type {
+  getMeResponse,
+  loginResponse,
+  registerResponse,
+} from '../generated/anthoLumeAPIV1';
+import type { LoginResponse } from '../generated/model';
+
+export type AuthUser = LoginResponse;
 
 export interface AuthState {
   isAuthenticated: boolean;
@@ -9,11 +13,6 @@ export interface AuthState {
   isCheckingAuth: boolean;
 }
 
-interface ResponseLike {
-  status?: number;
-  data?: unknown;
-}
-
 export function getUnauthenticatedAuthState(): AuthState {
   return {
     isAuthenticated: false,
@@ -38,27 +37,8 @@ export function getAuthenticatedAuthState(user: AuthUser): AuthState {
   };
 }
 
-export function normalizeAuthenticatedUser(value: unknown): AuthUser | null {
-  if (!value || typeof value !== 'object') {
-    return null;
-  }
-
-  if (!('username' in value) || typeof value.username !== 'string') {
-    return null;
-  }
-
-  if (!('is_admin' in value) || typeof value.is_admin !== 'boolean') {
-    return null;
-  }
-
-  return {
-    username: value.username,
-    is_admin: value.is_admin,
-  };
-}
-
 export function resolveAuthStateFromMe(params: {
-  meData?: ResponseLike;
+  meData?: getMeResponse;
   meError?: unknown;
   meLoading: boolean;
   previousState: AuthState;
@@ -70,10 +50,7 @@ export function resolveAuthStateFromMe(params: {
   }
 
   if (meData?.status === 200) {
-    const user = normalizeAuthenticatedUser(meData.data);
-    if (user) {
-      return getAuthenticatedAuthState(user);
-    }
+    return getAuthenticatedAuthState(meData.data);
   }
 
   if (meError || meData?.status === 401) {
@@ -86,13 +63,8 @@ export function resolveAuthStateFromMe(params: {
   };
 }
 
-export function validateAuthMutationResponse(
-  response: ResponseLike,
-  expectedStatus: number
+export function authUserFromMutation(
+  response: loginResponse | registerResponse
 ): AuthUser | null {
-  if (response.status !== expectedStatus) {
-    return null;
-  }
-
-  return normalizeAuthenticatedUser(response.data);
+  return response.status === 200 || response.status === 201 ? response.data : null;
 }