diff --git a/src/types/api.ts b/src/types/api.ts
index 19ab9aa..a7175d2 100644
--- a/src/types/api.ts
+++ b/src/types/api.ts
@@ -1,6 +1,6 @@
 // Public API types for SDK consumers
 
-import type { ConfigureAppPayload } from "./config.js";
+import type { ConfigureAppPayload, ConfigurePayload } from "./config.js";
 import type {
   AuthChangedEventPayload,
   DocumentEventPayload,
@@ -16,18 +16,20 @@ import type {
   Fact,
   KeycloakTokenResponse,
   NavigatePayload,
+  SetInteractionOptionsPayload,
   SetCredentialsPayload,
 } from "./payloads.js";
 import type { DefaultMode } from "./protocol.js";
 import type {
   AuthResponse,
   ConfigureAppResponse,
+  ConfigureResponse,
   CreateInteractionResponse,
   GetStatusResponse,
   GetTemplatesResponse,
 } from "./responses.js";
 
-export type { ConfigureAppPayload } from "./config.js";
+export type { ConfigureAppPayload, ConfigurePayload } from "./config.js";
 // Re-export common types for public API
 export type { UserInfo } from "./responses.js";
 
@@ -77,12 +79,12 @@ export interface EmbeddedEventData {
 // Window API Types
 export interface CortiEmbeddedV1API {
   auth(payload: KeycloakTokenResponse): Promise<AuthResponse>;
-  createInteraction(
-    payload: CreateInteractionPayload,
-  ): Promise<CreateInteractionResponse>;
+  createInteraction(payload: CreateInteractionPayload): Promise<CreateInteractionResponse>;
   addFacts(payload: AddFactsPayload): Promise<void>;
+  configureApp(payload: ConfigureAppPayload): Promise<ConfigureAppResponse>;
   configureSession(payload: ConfigureSessionPayload): Promise<void>;
-  configure(payload: ConfigureAppPayload): Promise<ConfigureAppResponse>;
+  setInteractionOptions(payload: SetInteractionOptionsPayload): Promise<void>;
+  configure(payload: ConfigurePayload): Promise<ConfigureResponse>;
   navigate(payload: NavigatePayload): Promise<void>;
   startRecording(): Promise<void>;
   stopRecording(): Promise<void>;
@@ -94,6 +96,13 @@ export interface CortiEmbeddedWindowAPI {
   v1: CortiEmbeddedV1API;
 }
 
+// Extend Window interface
+declare global {
+  interface Window {
+    CortiEmbedded?: CortiEmbeddedWindowAPI;
+  }
+}
+
 /**
  * Event listener function type
  */
@@ -115,9 +124,7 @@ export interface CortiEmbeddedAPI {
    * @param encounter Encounter request data
    * @returns Promise resolving to interaction details
    */
-  createInteraction(
-    encounter: CreateInteractionPayload,
-  ): Promise<InteractionDetails>;
+  createInteraction(encounter: CreateInteractionPayload): Promise<InteractionDetails>;
 
   /**
    * Configure the current session
@@ -164,19 +171,37 @@ export interface CortiEmbeddedAPI {
    */
   getTemplates(): Promise<GetTemplatesResponse>;
 
+  /**
+   * Configure the embedded application
+   * @param config Application-level configuration
+   * @returns Promise that resolves when configuration is applied
+   */
+  configureApp(config: ConfigureAppPayload): Promise<ConfigureAppResponse>;
+
   /**
    * Configure the application
    * @param config Application configuration
    * @returns Promise that resolves when configuration is applied
    */
-  configure(config: ConfigureAppPayload): Promise<ConfigureAppResponse>;
+  configure(config: ConfigurePayload): Promise<ConfigureResponse>;
+
+  /**
+   * Set one-shot interaction options for the embedded instance.
+   *
+   * Each call patches the provided interaction-options branches onto the current
+   * snapshot for the embedded instance. Omitted branches preserve their existing
+   * values from previous calls.
+   * @param config Interaction/session-level options
+   * @returns Promise that resolves when options are applied
+   */
+  setInteractionOptions(config: SetInteractionOptionsPayload): Promise<void>;
 
   /**
    * Set authentication credentials without triggering auth flow
    * @param credentials Authentication credentials to store
    * @returns Promise that resolves when credentials are set
    */
-  setCredentials(credentials: SetCredentialsPayload): Promise<void>;
+  setCredentials(credentials: { password: string }): Promise<void>;
 
   /**
    * Show the embedded UI
diff --git a/src/types/config.ts b/src/types/config.ts
index bcd62f3..68ec05c 100644
--- a/src/types/config.ts
+++ b/src/types/config.ts
@@ -4,7 +4,14 @@ export interface AppearanceConfig {
   primaryColor: string | null;
 }
 
-export interface FeaturesConfig {
+export interface UIConfig {
+  interactionTitle: boolean;
+  aiChat: boolean;
+  documentFeedback: boolean;
+  navigation: boolean;
+}
+
+export interface ConfigureFeaturesConfig {
   interactionTitle: boolean;
   aiChat: boolean;
   documentFeedback: boolean;
@@ -24,9 +31,18 @@ export interface NetworkConfig {
   websocketBaseUrl?: string | null;
 }
 
+export interface ConfigurePayload {
+  debug?: boolean;
+  appearance?: Partial<AppearanceConfig>;
+  features?: Partial<ConfigureFeaturesConfig>;
+  locale?: Partial<LocaleConfig>;
+  network?: Partial<NetworkConfig>;
+}
+
 export interface ConfigureAppPayload {
+  debug?: boolean;
+  ui?: Partial<UIConfig>;
   appearance?: Partial<AppearanceConfig>;
-  features?: Partial<FeaturesConfig>;
   locale?: Partial<LocaleConfig>;
   network?: Partial<NetworkConfig>;
 }
diff --git a/src/types/index.ts b/src/types/index.ts
index 60e9b9d..cda89dd 100644
--- a/src/types/index.ts
+++ b/src/types/index.ts
@@ -1,4 +1,4 @@
-// Main exports for @corti/embedded-types
+// Main exports for @assistant/embedded-types
 
 // Public API types
 export * from "./api.js";
diff --git a/src/types/payloads.ts b/src/types/payloads.ts
index 9f05fdb..9e4ac42 100644
--- a/src/types/payloads.ts
+++ b/src/types/payloads.ts
@@ -63,6 +63,49 @@ export interface ConfigureSessionPayload {
   defaultMode?: DefaultMode;
 }
 
+export interface InteractionModeOptions {
+  fallback: DefaultMode;
+  options: DefaultMode[];
+}
+
+export interface SpokenLanguageOptions {
+  fallback: string;
+}
+
+export interface InteractionTemplateReference {
+  source: "standard";
+  id: string;
+}
+
+export interface DefaultInteractionTemplateOptions {
+  behaviour: "fallback";
+  template: InteractionTemplateReference;
+}
+
+export interface InteractionTemplateSources {
+  personal?: {
+    enabled: boolean;
+  };
+}
+
+export interface InteractionTemplateOptions {
+  sources?: InteractionTemplateSources;
+  defaultTemplate?: DefaultInteractionTemplateOptions;
+}
+
+export interface InteractionDocumentOptions {
+  actions?: {
+    sync?: boolean;
+  };
+}
+
+export interface SetInteractionOptionsPayload {
+  mode?: InteractionModeOptions;
+  spokenLanguage?: SpokenLanguageOptions;
+  templates?: InteractionTemplateOptions;
+  documents?: InteractionDocumentOptions;
+}
+
 // Navigate payload
 export interface NavigatePayload {
   path: string;
diff --git a/src/types/protocol.ts b/src/types/protocol.ts
index b5dc625..8f9574e 100644
--- a/src/types/protocol.ts
+++ b/src/types/protocol.ts
@@ -2,10 +2,7 @@
 
 export type APIVersion = "v1";
 
-export type MessageType =
-  | "CORTI_EMBEDDED"
-  | "CORTI_EMBEDDED_RESPONSE"
-  | "CORTI_EMBEDDED_EVENT";
+export type MessageType = "CORTI_EMBEDDED" | "CORTI_EMBEDDED_RESPONSE" | "CORTI_EMBEDDED_EVENT";
 
 export type DefaultMode = "virtual" | "in-person";
 
@@ -13,7 +10,9 @@ export type EmbeddedAction =
   | "auth"
   | "createInteraction"
   | "addFacts"
+  | "configureApp"
   | "configureSession"
+  | "setInteractionOptions"
   | "navigate"
   | "startRecording"
   | "stopRecording"
@@ -92,6 +91,14 @@ export interface ConfigureSessionRequest extends EmbeddedRequest {
   action: "configureSession";
 }
 
+export interface ConfigureAppRequest extends EmbeddedRequest {
+  action: "configureApp";
+}
+
+export interface SetInteractionOptionsRequest extends EmbeddedRequest {
+  action: "setInteractionOptions";
+}
+
 export interface NavigateRequest extends EmbeddedRequest {
   action: "navigate";
 }
@@ -170,9 +177,11 @@ export type AnyEmbeddedRequest =
   | AuthRequest
   | CreateInteractionRequest
   | AddFactsRequest
+  | ConfigureAppRequest
   | ConfigureSessionRequest
   | GetTemplatesRequest
   | NavigateRequest
+  | SetInteractionOptionsRequest
   | StartRecordingRequest
   | StopRecordingRequest
   | GetStatusRequest
@@ -196,7 +205,4 @@ export type AnyDeprecatedEmbeddedEvent =
 
 export type AnyEvent = EmbeddedEventMessage | AnyDeprecatedEmbeddedEvent;
 
-export type AnyEmbeddedMessage =
-  | AnyEmbeddedRequest
-  | AnyEmbeddedResponse
-  | AnyDeprecatedEmbeddedEvent;
+export type AnyEmbeddedMessage = AnyEmbeddedRequest | AnyEmbeddedResponse | AnyEvent;
diff --git a/src/types/responses.ts b/src/types/responses.ts
index f9aea91..ff5f6c7 100644
--- a/src/types/responses.ts
+++ b/src/types/responses.ts
@@ -1,6 +1,12 @@
 // Response types for embedded API
 
-import type { AppearanceConfig, FeaturesConfig, LocaleConfig, NetworkConfig } from "./config.js";
+import type {
+  AppearanceConfig,
+  ConfigureFeaturesConfig,
+  LocaleConfig,
+  NetworkConfig,
+  UIConfig,
+} from "./config.js";
 import type { EmbeddedInterviewDetails } from "./generated/interview-details.js";
 
 export interface UserInfo {
@@ -49,9 +55,18 @@ export interface GetTemplatesResponse {
   templates: EmbeddedTemplate[];
 }
 
+export interface ConfigureResponse {
+  debug?: boolean;
+  appearance: AppearanceConfig;
+  features: ConfigureFeaturesConfig;
+  locale: LocaleConfig;
+  network: NetworkConfig;
+}
+
 export interface ConfigureAppResponse {
+  debug?: boolean;
   appearance: AppearanceConfig;
-  features: FeaturesConfig;
+  ui: UIConfig;
   locale: LocaleConfig;
   network: NetworkConfig;
 }