diff --git a/x-pack/legacy/plugins/alerting/server/alerts_client.ts b/x-pack/legacy/plugins/alerting/server/alerts_client.ts
index fc0252c86fe50..33a6b716e9b8a 100644
--- a/x-pack/legacy/plugins/alerting/server/alerts_client.ts
+++ b/x-pack/legacy/plugins/alerting/server/alerts_client.ts
@@ -15,6 +15,7 @@ import {
 } from 'src/core/server';
 import {
   Alert,
+  PartialAlert,
   RawAlert,
   AlertTypeRegistry,
   AlertAction,
@@ -69,28 +70,26 @@ export interface FindOptions {
   };
 }
 
-interface FindResult {
+export interface FindResult {
   page: number;
   perPage: number;
   total: number;
-  data: object[];
+  data: Alert[];
 }
 
 interface CreateOptions {
-  data: Pick<
+  data: Omit<
     Alert,
-    Exclude<
-      keyof Alert,
-      | 'createdBy'
-      | 'updatedBy'
-      | 'createdAt'
-      | 'updatedAt'
-      | 'apiKey'
-      | 'apiKeyOwner'
-      | 'muteAll'
-      | 'mutedInstanceIds'
-      | 'actions'
-    >
+    | 'id'
+    | 'createdBy'
+    | 'updatedBy'
+    | 'createdAt'
+    | 'updatedAt'
+    | 'apiKey'
+    | 'apiKeyOwner'
+    | 'muteAll'
+    | 'mutedInstanceIds'
+    | 'actions'
   > & { actions: NormalizedAlertAction[] };
   options?: {
     migrationVersion?: Record<string, string>;
@@ -146,7 +145,7 @@ export class AlertsClient {
     this.encryptedSavedObjectsPlugin = encryptedSavedObjectsPlugin;
   }
 
-  public async create({ data, options }: CreateOptions) {
+  public async create({ data, options }: CreateOptions): Promise<Alert> {
     // Throws an error if alert type isn't registered
     const alertType = this.alertTypeRegistry.get(data.alertTypeId);
     const validatedAlertTypeParams = validateAlertTypeParams(alertType, data.params);
@@ -199,26 +198,29 @@ export class AlertsClient {
     );
   }
 
-  public async get({ id }: { id: string }) {
+  public async get({ id }: { id: string }): Promise<Alert> {
     const result = await this.savedObjectsClient.get('alert', id);
     return this.getAlertFromRaw(result.id, result.attributes, result.updated_at, result.references);
   }
 
   public async find({ options = {} }: FindOptions = {}): Promise<FindResult> {
-    const results = await this.savedObjectsClient.find({
+    const {
+      page,
+      per_page: perPage,
+      total,
+      saved_objects: data,
+    } = await this.savedObjectsClient.find<RawAlert>({
       ...options,
       type: 'alert',
     });
 
-    const data = results.saved_objects.map(result =>
-      this.getAlertFromRaw(result.id, result.attributes, result.updated_at, result.references)
-    );
-
     return {
-      page: results.page,
-      perPage: results.per_page,
-      total: results.total,
-      data,
+      page,
+      perPage,
+      total,
+      data: data.map(({ id, attributes, updated_at, references }) =>
+        this.getAlertFromRaw(id, attributes, updated_at, references)
+      ),
     };
   }
 
@@ -234,7 +236,7 @@ export class AlertsClient {
     return removeResult;
   }
 
-  public async update({ id, data }: UpdateOptions) {
+  public async update({ id, data }: UpdateOptions): Promise<PartialAlert> {
     const decryptedAlertSavedObject = await this.encryptedSavedObjectsPlugin.getDecryptedAsInternalUser<
       RawAlert
     >('alert', id, { namespace: this.namespace });
@@ -257,7 +259,7 @@ export class AlertsClient {
   private async updateAlert(
     { id, data }: UpdateOptions,
     { attributes, version }: SavedObject<RawAlert>
-  ) {
+  ): Promise<PartialAlert> {
     const alertType = this.alertTypeRegistry.get(attributes.alertTypeId);
 
     // Validate
@@ -287,7 +289,7 @@ export class AlertsClient {
 
     await this.invalidateApiKey({ apiKey: attributes.apiKey });
 
-    return this.getAlertFromRaw(
+    return this.getPartialAlertFromRaw(
       id,
       updatedObject.attributes,
       updatedObject.updated_at,
@@ -494,24 +496,34 @@ export class AlertsClient {
   }
 
   private getAlertFromRaw(
+    id: string,
+    rawAlert: RawAlert,
+    updatedAt: SavedObject['updated_at'],
+    references: SavedObjectReference[] | undefined
+  ): Alert {
+    // In order to support the partial update API of Saved Objects we have to support
+    // partial updates of an Alert, but when we receive an actual RawAlert, it is safe
+    // to cast the result to an Alert
+    return this.getPartialAlertFromRaw(id, rawAlert, updatedAt, references) as Alert;
+  }
+
+  private getPartialAlertFromRaw(
     id: string,
     rawAlert: Partial<RawAlert>,
     updatedAt: SavedObject['updated_at'],
     references: SavedObjectReference[] | undefined
-  ) {
-    if (!rawAlert.actions) {
-      return {
-        id,
-        ...rawAlert,
-      };
-    }
-    const actions = this.injectReferencesIntoActions(rawAlert.actions, references || []);
+  ): PartialAlert {
     return {
       id,
       ...rawAlert,
+      // we currently only support the Interval Schedule type
+      // Once we support additional types, this type signature will likely change
+      schedule: rawAlert.schedule as IntervalSchedule,
       updatedAt: updatedAt ? new Date(updatedAt) : new Date(rawAlert.createdAt!),
       createdAt: new Date(rawAlert.createdAt!),
-      actions,
+      actions: rawAlert.actions
+        ? this.injectReferencesIntoActions(rawAlert.actions, references || [])
+        : [],
     };
   }
 
diff --git a/x-pack/legacy/plugins/alerting/server/routes/create.test.ts b/x-pack/legacy/plugins/alerting/server/routes/create.test.ts
index 03b33b0bd40b0..2a0ae78fd78b2 100644
--- a/x-pack/legacy/plugins/alerting/server/routes/create.test.ts
+++ b/x-pack/legacy/plugins/alerting/server/routes/create.test.ts
@@ -20,6 +20,7 @@ const mockedAlert = {
   params: {
     bar: true,
   },
+  throttle: '30s',
   actions: [
     {
       group: 'default',
@@ -44,6 +45,13 @@ test('creates an alert with proper parameters', async () => {
   const updatedAt = new Date();
   alertsClient.create.mockResolvedValueOnce({
     ...mockedAlert,
+    enabled: true,
+    muteAll: false,
+    createdBy: '',
+    updatedBy: '',
+    apiKey: '',
+    apiKeyOwner: '',
+    mutedInstanceIds: [],
     createdAt,
     updatedAt,
     id: '123',
@@ -71,8 +79,14 @@ test('creates an alert with proper parameters', async () => {
         },
       ],
       "alertTypeId": "1",
+      "apiKey": "",
+      "apiKeyOwner": "",
       "consumer": "bar",
+      "createdBy": "",
+      "enabled": true,
       "id": "123",
+      "muteAll": false,
+      "mutedInstanceIds": Array [],
       "name": "abc",
       "params": Object {
         "bar": true,
@@ -83,6 +97,8 @@ test('creates an alert with proper parameters', async () => {
       "tags": Array [
         "foo",
       ],
+      "throttle": "30s",
+      "updatedBy": "",
     }
   `);
   expect(alertsClient.create).toHaveBeenCalledTimes(1);
@@ -112,7 +128,7 @@ test('creates an alert with proper parameters', async () => {
           "tags": Array [
             "foo",
           ],
-          "throttle": null,
+          "throttle": "30s",
         },
       },
     ]
diff --git a/x-pack/legacy/plugins/alerting/server/routes/get.test.ts b/x-pack/legacy/plugins/alerting/server/routes/get.test.ts
index 5b1bdc7f69708..320e9042d87c5 100644
--- a/x-pack/legacy/plugins/alerting/server/routes/get.test.ts
+++ b/x-pack/legacy/plugins/alerting/server/routes/get.test.ts
@@ -29,6 +29,17 @@ const mockedAlert = {
       },
     },
   ],
+  consumer: 'bar',
+  name: 'abc',
+  tags: ['foo'],
+  enabled: true,
+  muteAll: false,
+  createdBy: '',
+  updatedBy: '',
+  apiKey: '',
+  apiKeyOwner: '',
+  throttle: '30s',
+  mutedInstanceIds: [],
 };
 
 beforeEach(() => jest.resetAllMocks());
diff --git a/x-pack/legacy/plugins/alerting/server/types.ts b/x-pack/legacy/plugins/alerting/server/types.ts
index a2390bf93d005..62dcf07abb7bd 100644
--- a/x-pack/legacy/plugins/alerting/server/types.ts
+++ b/x-pack/legacy/plugins/alerting/server/types.ts
@@ -65,6 +65,7 @@ export interface IntervalSchedule extends SavedObjectAttributes {
 }
 
 export interface Alert {
+  id: string;
   enabled: boolean;
   name: string;
   tags: string[];
@@ -85,6 +86,8 @@ export interface Alert {
   mutedInstanceIds: string[];
 }
 
+export type PartialAlert = Pick<Alert, 'id'> & Partial<Omit<Alert, 'id'>>;
+
 export interface RawAlert extends SavedObjectAttributes {
   enabled: boolean;
   name: string;
diff --git a/x-pack/legacy/plugins/siem/server/lib/detection_engine/routes/__mocks__/request_responses.ts b/x-pack/legacy/plugins/siem/server/lib/detection_engine/routes/__mocks__/request_responses.ts
index 2e16f209acfb1..edf196b96f5d0 100644
--- a/x-pack/legacy/plugins/siem/server/lib/detection_engine/routes/__mocks__/request_responses.ts
+++ b/x-pack/legacy/plugins/siem/server/lib/detection_engine/routes/__mocks__/request_responses.ts
@@ -283,9 +283,7 @@ export const getResult = (): RuleAlertType => ({
     ],
     riskScore: 50,
     maxSignals: 100,
-    size: 1,
     severity: 'high',
-    tags: [],
     to: 'now',
     type: 'query',
     threats: [
diff --git a/x-pack/legacy/plugins/siem/server/lib/detection_engine/rules/find_rules.ts b/x-pack/legacy/plugins/siem/server/lib/detection_engine/rules/find_rules.ts
index c1058bd353e8c..5f69082e3fc71 100644
--- a/x-pack/legacy/plugins/siem/server/lib/detection_engine/rules/find_rules.ts
+++ b/x-pack/legacy/plugins/siem/server/lib/detection_engine/rules/find_rules.ts
@@ -5,7 +5,7 @@
  */
 
 import { SIGNALS_ID } from '../../../../common/constants';
-import { FindRuleParams } from './types';
+import { FindRuleParams, RuleAlertType } from './types';
 
 export const getFilter = (filter: string | null | undefined) => {
   if (filter == null) {
@@ -33,5 +33,10 @@ export const findRules = async ({
       sortOrder,
       sortField,
     },
-  });
+  }) as Promise<{
+    page: number;
+    perPage: number;
+    total: number;
+    data: RuleAlertType[];
+  }>;
 };
diff --git a/x-pack/legacy/plugins/siem/server/lib/detection_engine/rules/types.ts b/x-pack/legacy/plugins/siem/server/lib/detection_engine/rules/types.ts
index b0578174e1f65..4f4c0da7127cd 100644
--- a/x-pack/legacy/plugins/siem/server/lib/detection_engine/rules/types.ts
+++ b/x-pack/legacy/plugins/siem/server/lib/detection_engine/rules/types.ts
@@ -35,10 +35,9 @@ export interface BulkUpdateRulesRequest extends RequestFacade {
   payload: UpdateRuleAlertParamsRest[];
 }
 
-export type RuleAlertType = Alert & {
-  id: string;
+export interface RuleAlertType extends Alert {
   params: RuleTypeParams;
-};
+}
 
 export interface RulesRequest extends RequestFacade {
   payload: RuleAlertParamsRest;