diff --git a/Libraries/ReactNative/AppRegistry.d.ts b/Libraries/ReactNative/AppRegistry.d.ts
index 468f7d3bd57c06..d6fa9627581a9a 100644
--- a/Libraries/ReactNative/AppRegistry.d.ts
+++ b/Libraries/ReactNative/AppRegistry.d.ts
@@ -8,9 +8,12 @@
  */
 
 import type * as React from 'react';
+import type {IPerformanceLogger} from '../Utilities/createPerformanceLogger';
 
 type Task = (taskData: any) => Promise<void>;
 type TaskProvider = () => Task;
+type TaskCanceller = () => void;
+type TaskCancelProvider = () => TaskCanceller;
 
 export type ComponentProvider = () => React.ComponentType<any>;
 
@@ -22,6 +25,13 @@ export type AppConfig = {
   run?: Runnable | undefined;
 };
 
+export type ComponentProviderInstrumentationHook = (
+  component: ComponentProvider,
+  scopedPerformanceLogger: IPerformanceLogger,
+) => React.ComponentType<any>;
+
+export type WrapperComponentProvider = (any) => React.ComponentType<any>;
+
 /**
  * `AppRegistry` is the JS entry point to running all React Native apps.  App
  * root components should register themselves with
@@ -38,17 +48,31 @@ export type AppConfig = {
  * `require`d.
  */
 export namespace AppRegistry {
+  export function setWrapperComponentProvider(
+    provider: WrapperComponentProvider,
+  );
+
   export function registerConfig(config: AppConfig[]): void;
 
   export function registerComponent(
     appKey: string,
     getComponentFunc: ComponentProvider,
+    section?: boolean,
   ): string;
 
   export function registerRunnable(appKey: string, func: Runnable): string;
 
+  export function registerSection(
+    appKey: string,
+    component: ComponentProvider,
+  ): void;
+
   export function getAppKeys(): string[];
 
+  export function getSectionKeys(): string[];
+
+  export function getSections(): Record<string, Runnable>;
+
   export function unmountApplicationComponentAtRootTag(rootTag: number): void;
 
   export function runApplication(appKey: string, appParameters: any): void;
@@ -65,4 +89,29 @@ export namespace AppRegistry {
   ): void;
 
   export function getRunnable(appKey: string): Runnable | undefined;
+
+  export function getRegistry(): {sections: string[]; runnables: Runnable[]};
+
+  export function setComponentProviderInstrumentationHook(
+    hook: ComponentProviderInstrumentationHook,
+  );
+
+  export function registerHeadlessTask(
+    taskKey: string,
+    taskProvider: TaskProvider,
+  ): void;
+
+  export function registerCancellableHeadlessTask(
+    taskKey: string,
+    taskProvider: TaskProvider,
+    taskCancelProvider: TaskCancelProvider,
+  ): void;
+
+  export function startHeadlessTask(
+    taskId: number,
+    taskKey: string,
+    data: any,
+  ): void;
+
+  export function cancelHeadlessTask(taskId: number, taskKey: string): void;
 }
diff --git a/Libraries/Utilities/createPerformanceLogger.d.ts b/Libraries/Utilities/createPerformanceLogger.d.ts
new file mode 100644
index 00000000000000..57b590b99da4d1
--- /dev/null
+++ b/Libraries/Utilities/createPerformanceLogger.d.ts
@@ -0,0 +1,48 @@
+/**
+ * Copyright (c) Meta Platforms, Inc. and affiliates.
+ *
+ * This source code is licensed under the MIT license found in the
+ * LICENSE file in the root directory of this source tree.
+ *
+ * @format
+ */
+
+export type Timespan = {
+  startTime: number;
+  endTime?: number;
+  totalTime?: number;
+  startExtras?: Extras;
+  endExtras?: Extras;
+};
+
+// Extra values should be serializable primitives
+export type ExtraValue = number | string | boolean;
+
+export type Extras = {[key: string]: ExtraValue};
+
+export interface IPerformanceLogger {
+  addTimespan(
+    key: string,
+    startTime: number,
+    endTime: number,
+    startExtras?: Extras,
+    endExtras?: Extras,
+  ): void;
+  append(logger: IPerformanceLogger): void;
+  clear(): void;
+  clearCompleted(): void;
+  close(): void;
+  currentTimestamp(): number;
+  getExtras(): {[key: string]: ExtraValue | null};
+  getPoints(): {[key: string]: number | null};
+  getPointExtras(): {[key: string]: Extras | null};
+  getTimespans(): {[key: string]: Timespan | null};
+  hasTimespan(key: string): boolean;
+  isClosed(): boolean;
+  logEverything(): void;
+  markPoint(key: string, timestamp?: number, extras?: Extras): void;
+  removeExtra(key: string): ExtraValue | null;
+  setExtra(key: string, value: ExtraValue): void;
+  startTimespan(key: string, timestamp?: number, extras?: Extras): void;
+  stopTimespan(key: string, timestamp?: number, extras?: Extras): void;
+}