diff --git a/backend/src/Squidex/wwwroot/scripts/editor-sdk.d.ts b/backend/src/Squidex/wwwroot/scripts/editor-sdk.d.ts
new file mode 100644
index 000000000..51e76a843
--- /dev/null
+++ b/backend/src/Squidex/wwwroot/scripts/editor-sdk.d.ts
@@ -0,0 +1,199 @@
+declare class EditorPlugin {
+    /**
+     * Get the current context.
+     */
+    getContext(): any;
+
+    /**
+     * Notifies the parent to navigate to the path.
+     */
+    navigate(url: string): void;
+
+    /**
+     * Register an function that is called when the sidebar is initialized.
+     *
+     * @param {Function} callback: The callback to invoke.
+     */
+    onInit(callback: () => void): void;
+
+    /**
+     * Register an function that is called whenever the value of the content has changed.
+     *
+     * @param {Function} callback: The callback to invoke. Argument 1: Content value (any).
+     */
+    onContentChanged(callback: (content: any) => void): void;
+
+    /**
+     * Clean the editor SDK.
+     */
+    clean(): void; 
+}
+
+declare class SquidexFormField {
+    /**
+     * Get the current value.
+     */
+     getValue(): any;
+
+    /**
+     * Get the current value.
+     */
+    getContext(): any;
+
+    /**
+     * Get the current form value.
+     */
+    getFormValue(): any;
+
+    /**
+     * Get the current field language.
+     */
+    getLanguage(): string | undefined | null;
+
+    /**
+     * Get the current index when the field is an array item. 
+     */
+    getIndex(): number | undefined | null;
+
+    /**
+     * Get the disabled state.
+     */
+    isDisabled(): boolean;
+
+    /**
+     * Get the fullscreen state.
+     */
+    isFullscreen(): boolean;
+    /**
+     * Get the expanded state.
+     */
+    isExpanded(): boolean;
+
+    /**
+     * Notifies the control container that the editor has been touched.
+     */
+    touched(): void;
+
+    /**
+     * Notifies the parent to navigate to the path.
+     *
+     * @param {string} url: The url to navigate to.
+     */
+    navigate(url: string): void;
+
+    /**
+     * Notifies the parent to go to fullscreen mode.
+     */
+    toggleFullscreen(): void;
+
+    /**
+     * Notifies the parent to go to expanded mode.
+     */
+    toggleExpanded(): void;
+
+    /**
+     * Notifies the control container that the value has been changed.
+     *
+     * @param {any} newValue: The new field value.
+     */
+    valueChanged(newValue: any): void;
+
+    /**
+     * Shows an info alert.
+     * 
+     * @param {string} text: The info text.
+     */
+    notifyInfo(text: string): void;
+
+    /**
+     * Shows an error alert.
+     * 
+     * @param {string} text: error info text.
+     */
+    notifyError(text: string): void;
+
+    /**
+     * Shows an confirm dialog.
+     * 
+     * @param {string} title The title of the dialog.
+     * @param {string} text The text of the dialog.
+     * @param {function} callback The callback to invoke when the dialog is completed or closed.
+     */
+    confirm(title: string, text: string, callback: (result: boolean) => void): void;
+
+    /**
+     * Shows the dialog to pick assets.
+     * 
+     * @param {function} callback The callback to invoke when the dialog is completed or closed.
+     */
+    pickAssets(callback: (assets: any[]) => void): void;
+
+    /**
+     * Shows the dialog to pick contents.
+     * 
+     * @param {string} schemas: The list of schema names.
+     * @param {function} callback The callback to invoke when the dialog is completed or closed.
+     */
+    pickContents(schemas: string[], callback: (assets: any[]) => void): void;
+
+    /**
+     * Register an function that is called when the field is initialized.
+     * 
+     * @param {Function} callback: The callback to invoke.
+     */
+    onInit(callback: () => void): void;
+
+    /**
+     * Register an function that is called when the field is moved.
+     *
+     * @param {Function} callback: The callback to invoke. Argument 1: New position (number).
+     */
+    onMoved(callback: (index: number) => void): void;
+
+    /**
+     * Register an function that is called whenever the field is disabled or enabled.
+     *
+     * @param {Function} callback: The callback to invoke. Argument 1: New disabled state (boolean, disabled = true, enabled = false).
+     */
+    onDisabled(callback: (isDisabled: boolean) => void): void;
+
+    /**
+     * Register an function that is called whenever the field language is changed.
+     *
+     * @param {Function} callback: The callback to invoke. Argument 1: Language code (string).
+     */
+    onLanguageChanged(callback: (language: string) => void): void;
+
+    /**
+     * Register an function that is called whenever the value of the field has changed.
+     *
+     * @param {Function} callback: The callback to invoke. Argument 1: Field value (any).
+     */
+    onValueChanged(callback: (value: any) => void): void;
+
+    /**
+     * Register an function that is called whenever the value of the content has changed.
+     *
+     * @param {Function} callback: The callback to invoke. Argument 1: Content value (any).
+     */
+    onFormValueChanged(callback: (value: any) => void): void;
+
+    /**
+     * Register an function that is called whenever the fullscreen mode has changed.
+     *
+     * @param {Function} callback: The callback to invoke. Argument 1: Fullscreen state (boolean, fullscreen on = true, fullscreen off = false).
+     */
+    onFullscreen(callback: (isFullscreen: boolean) => void): void;
+
+    /**
+     * Register an function that is called whenever the expanded mode has changed.
+     *
+     * @param {Function} callback: The callback to invoke. Argument 1: Expanded state (boolean, expanded on = true, expanded off = false).
+     */
+    onExpanded(callback: (isExpanded: boolean) => void): void;
+
+    /**
+     * Clean the editor SDK.
+     */
+    clean(): void;
+}
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