diff --git a/src/runtime/action/index.ts b/src/runtime/action/index.ts
new file mode 100644
index 0000000000..d5c303a888
--- /dev/null
+++ b/src/runtime/action/index.ts
@@ -0,0 +1,8 @@
+export interface ActionReturn<Parameters = any> {
+	update?: (parameters: Parameters) => void;
+	destroy?: () => void;
+}
+
+export interface Action<Parameters = any> {
+	(node: HTMLElement, parameters: Parameters): ActionReturn<Parameters>;
+}