create ParseCallToolResult utility method

Author: Zheng Li

client/sse.go

@@ -491,54 +491,7 @@ func (c *SSEMCPClient) CallTool(
 		return nil, err
 	}
 
-	var jsonContent map[string]any
-	if err := json.Unmarshal(*response, &jsonContent); err != nil {
-		return nil, fmt.Errorf("failed to unmarshal response: %w", err)
-	}
-
-	var result mcp.CallToolResult
-
-	meta, ok := jsonContent["_meta"]
-	if ok {
-		if metaMap, ok := meta.(map[string]any); ok {
-			result.Meta = metaMap
-		}
-	}
-
-	isError, ok := jsonContent["isError"]
-	if ok {
-		if isErrorBool, ok := isError.(bool); ok {
-			result.IsError = isErrorBool
-		}
-	}
-
-	contents, ok := jsonContent["content"]
-	if !ok {
-		return nil, fmt.Errorf("content is missing")
-	}
-
-	contentArr, ok := contents.([]any)
-	if !ok {
-		return nil, fmt.Errorf("content is not an array")
-	}
-
-	for _, content := range contentArr {
-		// Extract content
-		contentMap, ok := content.(map[string]any)
-		if !ok {
-			return nil, fmt.Errorf("content is not an object")
-		}
-
-		// Process content
-		content, err := mcp.ParseContent(contentMap)
-		if err != nil {
-			return nil, err
-		}
-
-		result.Content = append(result.Content, content)
-	}
-
-	return &result, nil
+	return mcp.ParseCallToolResult(response)
 }
 
 func (c *SSEMCPClient) SetLevel(

client/stdio.go

@@ -417,12 +417,7 @@ func (c *StdioMCPClient) CallTool(
 		return nil, err
 	}
 
-	var result mcp.CallToolResult
-	if err := json.Unmarshal(*response, &result); err != nil {
-		return nil, fmt.Errorf("failed to unmarshal response: %w", err)
-	}
-
-	return &result, nil
+	return mcp.ParseCallToolResult(response)
 }
 
 func (c *StdioMCPClient) SetLevel(

mcp/utils.go

@@ -492,3 +492,54 @@ func ParseGetPromptResult(rawMessage *json.RawMessage) (*GetPromptResult, error)
 
 	return &result, nil
 }
+
+func ParseCallToolResult(rawMessage *json.RawMessage) (*CallToolResult, error) {
+	var jsonContent map[string]any
+	if err := json.Unmarshal(*rawMessage, &jsonContent); err != nil {
+		return nil, fmt.Errorf("failed to unmarshal response: %w", err)
+	}
+
+	var result CallToolResult
+
+	meta, ok := jsonContent["_meta"]
+	if ok {
+		if metaMap, ok := meta.(map[string]any); ok {
+			result.Meta = metaMap
+		}
+	}
+
+	isError, ok := jsonContent["isError"]
+	if ok {
+		if isErrorBool, ok := isError.(bool); ok {
+			result.IsError = isErrorBool
+		}
+	}
+
+	contents, ok := jsonContent["content"]
+	if !ok {
+		return nil, fmt.Errorf("content is missing")
+	}
+
+	contentArr, ok := contents.([]any)
+	if !ok {
+		return nil, fmt.Errorf("content is not an array")
+	}
+
+	for _, content := range contentArr {
+		// Extract content
+		contentMap, ok := content.(map[string]any)
+		if !ok {
+			return nil, fmt.Errorf("content is not an object")
+		}
+
+		// Process content
+		content, err := ParseContent(contentMap)
+		if err != nil {
+			return nil, err
+		}
+
+		result.Content = append(result.Content, content)
+	}
+
+	return &result, nil
+}