diff --git a/app/sdk/src/api.ts b/app/sdk/src/api.ts
index 06f5d13e..0a28fcc8 100644
--- a/app/sdk/src/api.ts
+++ b/app/sdk/src/api.ts
@@ -134,7 +134,7 @@ export interface Attribute {
 }
 
 export interface Focus {
-  addTopic(sealed: boolean, type: string, subject: (assetId: {assetId: string, transform: string}[]) => any, files: AssetSource[]): Promise<string>;
+  addTopic(sealed: boolean, type: string, subject: (asset: {assetId: string, context: any}[]) => any, files: AssetSource[], progress: (percent: number)=>boolean): Promise<string>;
   setTopicSubject(topicId: string, type: string, subject: (assets: {assetId: string, transform: string}[]) => any, files: AssetSource[]): Promise<void>;
   removeTopic(topicId: string): Promise<void>;
 
diff --git a/app/sdk/src/focus.ts b/app/sdk/src/focus.ts
index 8a673451..9af56f94 100644
--- a/app/sdk/src/focus.ts
+++ b/app/sdk/src/focus.ts
@@ -215,8 +215,30 @@ export class FocusModule implements Focus {
     }
   }
 
-  public async addTopic(sealed: boolean, type: string, subject: (assetId: {assetId: string, transform: string}[]) => any, files: AssetSource[]) {
+  public async addTopic(sealed: boolean, type: string, subject: (asset: {assetId: string, context: any}[]) => any, files: AssetSource[], progress: (percent: nunber)=>boolean): Promise<string> {
     return '';
+
+    // if not assets
+      // subject callback
+      // format
+      // if sealed
+        // encrypt
+      // add confirmed topic
+
+    // else
+      // add unconfirmed topic
+      // for each asset
+        // if split
+          // for each block
+            // encrypt
+            // upload reporting progress
+        // else
+          // upload reporting progress
+      // subject callback
+      // format
+      // if sealed
+        // encrypt
+      // set subject and confirm
   }
 
   public async setTopicSubject(topicId: string, type: string, subject: (assets: {assetId: string, transform: string}[]) => any, files: AssetSource[]) {}
diff --git a/app/sdk/src/session.ts b/app/sdk/src/session.ts
index be2c3c41..5b2c4b7b 100644
--- a/app/sdk/src/session.ts
+++ b/app/sdk/src/session.ts
@@ -153,7 +153,6 @@ export class SessionModule implements Session {
   }
 
   public setFocus(cardId: string | null, channelId: string): Focus {
-console.log("SESSION SET FOCUS");
     if (cardId) {
       return this.contact.setFocus(cardId, channelId);
     } else {
diff --git a/app/sdk/src/types.ts b/app/sdk/src/types.ts
index c0b67ac1..21b6280f 100644
--- a/app/sdk/src/types.ts
+++ b/app/sdk/src/types.ts
@@ -110,19 +110,28 @@ export type Tag = {
   sortOrder: number;
 };
 
+enum HostingMode {
+  Inline, // sealed or unsealed, include data in message body
+  Split, // sealed only, split file into blocks
+  Thumb, // unsealed only, server side generate thumbnail from source
+  Copy, // unsealed only, server side preserve data while stripping metadata
+  HighQuality, // unsealed only, server side transcode to high quality
+  MediumQuality, // unsealed only, server side transcode to medium quality
+  LowQuality, // unsealed only, server side transcode to low quality
+}
+
 export type AssetSource = {
-  type: string;
+  name: string;
+  mimeType: string;
   extension: string;
-  path: string;
-  transforms: string[],
+  hosting: {mode: HostingMode, context: any, data?: string, position?: number, size?: number}[],
 }
 
 export type Asset = {
   assetId: string;
-  type: string;
-  encrypted: boolean;
-  transform: string;
+  mimeType: string;
   extension: string;
+  hosting: HostingMode;
 };
 
 export type Group = {