Fixed the deadlock

Author: sunfmin

pkg/debugger/client.go

@@ -1075,13 +1075,21 @@ func (c *Client) GetCapturedOutput() *OutputMessage {
 func (c *Client) GetAllCapturedOutput() []OutputMessage {
 	var messages []OutputMessage
 
-	// Collect all available messages without blocking
-	for {
+	// Non-blocking read of up to 100 messages
+	// This prevents clearing the entire channel while still returning available messages
+	for i := 0; i < 100; i++ {
 		select {
-		case msg := <-c.outputChan:
+		case msg, ok := <-c.outputChan:
+			if !ok {
+				// Channel was closed
+				return messages
+			}
 			messages = append(messages, msg)
 		default:
+			// No more messages available without blocking
 			return messages
 		}
 	}
+	
+	return messages
 }

pkg/mcp/server.go

@@ -424,6 +424,9 @@ func (s *MCPDebugServer) Close(ctx context.Context, request mcp.CallToolRequest)
 		return newErrorResult("failed to close debug session: %v", err), nil
 	}
 
+	// Reinitialize the debug client to ensure it's ready for the next session
+	s.debugClient = debugger.NewClient()
+	
 	return mcp.NewToolResultText("Debug session closed successfully"), nil
 }