diff --git a/packages/cli/src/queries/system.ts b/packages/cli/src/queries/system.ts
index f4b2716ec..546050bb9 100644
--- a/packages/cli/src/queries/system.ts
+++ b/packages/cli/src/queries/system.ts
@@ -1,5 +1,5 @@
 import type { AlterationState, System } from '@logto/schemas';
-import { Systems, logtoConfigGuards, AlterationStateKey } from '@logto/schemas';
+import { systemGuards, Systems, AlterationStateKey } from '@logto/schemas';
 import { convertToIdentifiers } from '@logto/shared';
 import type { Nullable } from '@silverhand/essentials';
 import type { CommonQueryMethods, DatabaseTransactionConnection } from 'slonik';
@@ -31,7 +31,7 @@ export const getCurrentDatabaseAlterationTimestamp = async (pool: CommonQueryMet
     const result = await pool.maybeOne<System>(
       sql`select * from ${table} where ${fields.key}=${AlterationStateKey.AlterationState}`
     );
-    const parsed = logtoConfigGuards[AlterationStateKey.AlterationState].safeParse(result?.value);
+    const parsed = systemGuards[AlterationStateKey.AlterationState].safeParse(result?.value);
 
     return (parsed.success && parsed.data.timestamp) || 0;
   } catch (error: unknown) {
diff --git a/packages/schemas/src/types/index.ts b/packages/schemas/src/types/index.ts
index 6faa0a306..116bb8654 100644
--- a/packages/schemas/src/types/index.ts
+++ b/packages/schemas/src/types/index.ts
@@ -10,3 +10,4 @@ export * from './scope.js';
 export * from './role.js';
 export * from './verification-code.js';
 export * from './application.js';
+export * from './system.js';
diff --git a/packages/schemas/src/types/logto-config.ts b/packages/schemas/src/types/logto-config.ts
index ff7d46d87..fc6abd025 100644
--- a/packages/schemas/src/types/logto-config.ts
+++ b/packages/schemas/src/types/logto-config.ts
@@ -1,26 +1,6 @@
 import type { ZodType } from 'zod';
 import { z } from 'zod';
 
-// Alteration state
-export enum AlterationStateKey {
-  AlterationState = 'alterationState',
-}
-
-export type AlterationState = { timestamp: number; updatedAt?: string };
-
-export type AlterationStateType = {
-  [AlterationStateKey.AlterationState]: AlterationState;
-};
-
-export const alterationStateGuard: Readonly<{
-  [key in AlterationStateKey]: ZodType<AlterationStateType[key]>;
-}> = Object.freeze({
-  [AlterationStateKey.AlterationState]: z.object({
-    timestamp: z.number(),
-    updatedAt: z.string().optional(),
-  }),
-});
-
 // Logto OIDC config
 export enum LogtoOidcConfigKey {
   PrivateKeys = 'oidc.privateKeys',
@@ -67,20 +47,16 @@ export const adminConsoleConfigGuard: Readonly<{
 });
 
 // Summary
-export type LogtoConfigKey = AlterationStateKey | LogtoOidcConfigKey | AdminConsoleConfigKey;
-export type LogtoConfigType = AlterationStateType | LogtoOidcConfigType | AdminConsoleConfigType;
-export type LogtoConfigGuard = typeof alterationStateGuard &
-  typeof logtoOidcConfigGuard &
-  typeof adminConsoleConfigGuard;
+export type LogtoConfigKey = LogtoOidcConfigKey | AdminConsoleConfigKey;
+export type LogtoConfigType = LogtoOidcConfigType | AdminConsoleConfigType;
+export type LogtoConfigGuard = typeof logtoOidcConfigGuard & typeof adminConsoleConfigGuard;
 
 export const logtoConfigKeys: readonly LogtoConfigKey[] = Object.freeze([
-  ...Object.values(AlterationStateKey),
   ...Object.values(LogtoOidcConfigKey),
   ...Object.values(AdminConsoleConfigKey),
 ]);
 
 export const logtoConfigGuards: LogtoConfigGuard = Object.freeze({
-  ...alterationStateGuard,
   ...logtoOidcConfigGuard,
   ...adminConsoleConfigGuard,
 });
diff --git a/packages/schemas/src/types/system.ts b/packages/schemas/src/types/system.ts
new file mode 100644
index 000000000..4ff99a298
--- /dev/null
+++ b/packages/schemas/src/types/system.ts
@@ -0,0 +1,35 @@
+import type { ZodType } from 'zod';
+import { z } from 'zod';
+
+// Alteration state
+export enum AlterationStateKey {
+  AlterationState = 'alterationState',
+}
+
+export type AlterationState = { timestamp: number; updatedAt?: string };
+
+export type AlterationStateType = {
+  [AlterationStateKey.AlterationState]: AlterationState;
+};
+
+export const alterationStateGuard: Readonly<{
+  [key in AlterationStateKey]: ZodType<AlterationStateType[key]>;
+}> = Object.freeze({
+  [AlterationStateKey.AlterationState]: z.object({
+    timestamp: z.number(),
+    updatedAt: z.string().optional(),
+  }),
+});
+
+// Summary
+export type SystemKey = AlterationStateKey;
+export type SystemType = AlterationStateType;
+export type SystemGuard = typeof alterationStateGuard;
+
+export const systemKeys: readonly SystemKey[] = Object.freeze([
+  ...Object.values(AlterationStateKey),
+]);
+
+export const systemGuards: SystemGuard = Object.freeze({
+  ...alterationStateGuard,
+});