feat(memory): expose get_session to client layer

src/agentarts/sdk/memory/async_client.py

@@ -196,6 +196,10 @@ async def delete_session(self, space_id: str, session_id: str) -> None:
         """Delete a session (soft delete) - identical to sync version."""
         await self._async_data_plane.delete_session(space_id, session_id)
 
+    async def get_session(self, space_id: str, session_id: str) -> SessionInfo:
+        """Get session details - identical to sync version."""
+        return await self._async_data_plane.get_session(space_id, session_id)
+
     # ==================== Data Plane - Message Management (Async) ====================
 
     async def get_last_k_messages(

src/agentarts/sdk/memory/async_session.py

@@ -18,6 +18,7 @@
     MessageInfo,
     MessageListResponse,
     SessionCreateRequest,
+    SessionInfo,
     TextMessage,
     ToolCallMessage,
     ToolResultMessage,
@@ -136,6 +137,12 @@ async def delete(self) -> None:
         await self._async_data_plane.delete_session(self.space_id, self.session_id)
         logger.info(f"Session deleted: {self.session_id} in space: {self.space_id}")
 
+    async def get_info(self) -> SessionInfo:
+        """Get details of this session - identical to sync version."""
+        await self._ensure_initialized()
+        logger.info(f"Getting session info: {self.session_id} in space: {self.space_id}")
+        return await self._async_data_plane.get_session(self.space_id, self.session_id)
+
     # ==================== Message Management (Async) ====================
 
     async def get_last_k_messages(

src/agentarts/sdk/memory/client.py

@@ -513,6 +513,22 @@ def delete_session(self, space_id: str, session_id: str) -> None:
         """
         self._data_plane.delete_session(space_id, session_id)
 
+    def get_session(self, space_id: str, session_id: str) -> SessionInfo:
+        """
+        Get session details.
+
+        Args:
+            space_id: Space ID
+            session_id: Session ID
+
+        Returns:
+            SessionInfo: Session details
+
+        Examples:
+            >>> session_info = client.get_session("space-123", "session-456")
+        """
+        return self._data_plane.get_session(space_id, session_id)
+
     # ==================== Data Plane - Message Management ====================
 
     def get_last_k_messages(

src/agentarts/sdk/memory/inner/dataplane.py

@@ -115,6 +115,28 @@ def delete_session(self, space_id: str, session_id: str) -> None:
         self.client.delete_session(space_id, session_id)
         logger.info(f"Session deleted: {session_id} in space: {space_id}")
 
+    def get_session(self, space_id: str, session_id: str) -> SessionInfo:
+        """
+        Get session details.
+
+        Args:
+            space_id: Space ID
+            session_id: Session ID
+
+        Returns:
+            SessionInfo: Session details
+        """
+        if not space_id:
+            msg = "space_id is required for data plane operations"
+            raise ValueError(msg)
+        if not session_id:
+            msg = "session_id is required for get_session"
+            raise ValueError(msg)
+
+        result = self.client.get_session(space_id, session_id)
+        logger.info(f"Session retrieved: {session_id} in space: {space_id}")
+        return SessionInfo.from_dict(result)
+
     def add_messages(
             self,
             space_id: str,

src/agentarts/sdk/memory/inner/dataplane_async.py

@@ -103,6 +103,19 @@ async def delete_session(self, space_id: str, session_id: str) -> None:
         await self.client.delete_session(space_id, session_id)
         logger.info(f"Session deleted: {session_id} in space: {space_id}")
 
+    async def get_session(self, space_id: str, session_id: str) -> SessionInfo:
+        """Get session details - identical to sync version."""
+        if not space_id:
+            msg = "space_id is required for data plane operations"
+            raise ValueError(msg)
+        if not session_id:
+            msg = "session_id is required for get_session"
+            raise ValueError(msg)
+
+        result = await self.client.get_session(space_id, session_id)
+        logger.info(f"Session retrieved: {session_id} in space: {space_id}")
+        return SessionInfo.from_dict(result)
+
     async def add_messages(
             self,
             space_id: str,

src/agentarts/sdk/memory/session.py

@@ -15,6 +15,7 @@
     MessageInfo,
     MessageListResponse,
     SessionCreateRequest,
+    SessionInfo,
     TextMessage,
     ToolCallMessage,
     ToolResultMessage,
@@ -215,6 +216,16 @@ def delete(self) -> None:
         self._data_plane.delete_session(self.space_id, self.session_id)
         logger.info(f"Session deleted: {self.session_id} in space: {self.space_id}")
 
+    def get_info(self) -> SessionInfo:
+        """
+        Get details of this session.
+
+        Returns:
+            SessionInfo: Session details including id, space_id, actor_id, etc.
+        """
+        logger.info(f"Getting session info: {self.session_id} in space: {self.space_id}")
+        return self._data_plane.get_session(self.space_id, self.session_id)
+
     # ==================== Message Management ====================
 
     def get_last_k_messages(