diff --git a/src/chat/index.ts b/src/chat/index.ts
index a37e4c8..2a99cbc 100644
--- a/src/chat/index.ts
+++ b/src/chat/index.ts
@@ -32,6 +32,8 @@ export {
   isChat,
 } from './interfaces.js';
 
+export * from './interfaces.js';
+
 // Provider implementations
 export { OpenAIChatResponse } from './openaiChat.js';
 export { GeminiChat } from './geminiChat.js';
diff --git a/src/index.ts b/src/index.ts
index f6061ce..0ea57ed 100644
--- a/src/index.ts
+++ b/src/index.ts
@@ -20,6 +20,11 @@ export type {
   PartialAgentConfig,
   AllConfig,
   
+  // Session management interfaces
+  ISessionManager,
+  IStandardAgent,
+  AgentSession,
+  
   // Chat interfaces
   IChat,
   IChatConfig,
@@ -55,7 +60,7 @@ export type {
   
   // Data types
   ContentPart,
-  MessageItem as ConversationContent,
+  MessageItem,
   LLMResponse,
   
   // Event types