diff --git a/packages/svelte/src/ambient.d.ts b/packages/svelte/src/ambient.d.ts
index a1484718cc..7c3b941ed1 100644
--- a/packages/svelte/src/ambient.d.ts
+++ b/packages/svelte/src/ambient.d.ts
@@ -255,6 +255,13 @@ declare namespace $effect {
 	 */
 	export function pre(fn: () => void | (() => void)): void;
 
+	/**
+	 * Returns the number of promises that are pending in the current boundary, not including child boundaries.
+	 *
+	 * https://svelte.dev/docs/svelte/$effect#$effect.pending
+	 */
+	export function pending(): number;
+
 	/**
 	 * The `$effect.tracking` rune is an advanced feature that tells you whether or not the code is running inside a tracking context, such as an effect or inside your template.
 	 *
diff --git a/packages/svelte/types/index.d.ts b/packages/svelte/types/index.d.ts
index 60795e6681..d356762a3f 100644
--- a/packages/svelte/types/index.d.ts
+++ b/packages/svelte/types/index.d.ts
@@ -3325,6 +3325,13 @@ declare namespace $effect {
 	 */
 	export function pre(fn: () => void | (() => void)): void;
 
+	/**
+	 * Returns the number of promises that are pending in the current boundary, not including child boundaries.
+	 *
+	 * https://svelte.dev/docs/svelte/$effect#$effect.pending
+	 */
+	export function pending(): number;
+
 	/**
 	 * The `$effect.tracking` rune is an advanced feature that tells you whether or not the code is running inside a tracking context, such as an effect or inside your template.
 	 *