diff --git a/api/arkui/component/builder.static.d.ets b/api/arkui/component/builder.static.d.ets
index 1095b64dd5278ce14be3244ce1285efaefc1a39d..105c8c9a22d2e1309a22dbbc899c1f0c71e6bbaf 100755
--- a/api/arkui/component/builder.static.d.ets
+++ b/api/arkui/component/builder.static.d.ets
@@ -20,6 +20,7 @@
  */
 
 import { memo, ComponentBuilder, __memo_context_type, __memo_id_type } from "../stateManagement/runtime";
+import { Callback } from '@ohos.base'
 
 /**
  * Defines Builder Annotation.
@@ -111,3 +112,25 @@ export declare class WrappedBuilder<T> {
    */
   public constructor(builder: T);
 }
+
+/**
+ * Type for property getter in Builder parameter proxy.
+ *
+ * @typedef { function } BuilderParameterCallback
+ * @returns { Any } parameter value
+ * @syscap SystemCapability.ArkUI.ArkUI.Full
+ * @since 20
+ */
+export type BuilderParameterCallback = () => Any;
+
+/**
+ * Make proxy for Builder parameter.
+ *
+ * @syscap SystemCapability.ArkUI.ArkUI.Full
+ * @param { T } instance initial literal instance
+ * @param { Map<string, BuilderParameterCallback> } propertyGetters override property getters
+ * @param { Callback<T> } initializer update proxied instance with literal's initial values
+ * @returns { T } proxied literal instance
+ * @since 20
+ */
+export declare function makeBuilderParameterProxy<T extends Object>(instance: T, propertyGetters: Map<string, BuilderParameterCallback>, initializer?: Callback<T>): T;
\ No newline at end of file
diff --git a/api/arkui/stateManagement/runtime.static.d.ets b/api/arkui/stateManagement/runtime.static.d.ets
index e19ab206a9b8a187a9658ed5fd0a8cd5c8ee2e2e..03990d892b4b0407479a3e472435a0101cff34de 100644
--- a/api/arkui/stateManagement/runtime.static.d.ets
+++ b/api/arkui/stateManagement/runtime.static.d.ets
@@ -80,3 +80,12 @@ export declare class SyncedProperty<T> implements MutableState<T> {
     set value(value: T);
     update(value?: T): void;
 }
+
+/**
+ * Defining MemoSkip annotation.
+ * MemoSkip parameter will not be a state varaiable in Builder functions.
+ * @syscap SystemCapability.ArkUI.ArkUI.Full
+ * @since 20
+ */
+@Retention({policy: "SOURCE"})
+export declare @interface MemoSkip {};
\ No newline at end of file
diff --git a/api/arkui/stateManagement/utils.static.d.ets b/api/arkui/stateManagement/utils.static.d.ets
index 661b3e363f0a4f6f4a1babbfb22a78d5b3ceaa72..b380269858aac73dde8c158c4bd4c5ed9f5041ca 100644
--- a/api/arkui/stateManagement/utils.static.d.ets
+++ b/api/arkui/stateManagement/utils.static.d.ets
@@ -148,6 +148,7 @@ export declare class MutableBinding<T> {
   get value(): T;
   /**
    * Set function that can set the new value.
+   * @param { T } newValue new value
    * @syscap SystemCapability.ArkUI.ArkUI.Full
    * @since 20
    */