fix(ai-proxy): preserve text content alongside tool_result in Claude to OpenAI conversion (#3503)

plugins/wasm-go/extensions/ai-proxy/provider/claude_to_openai.go

@@ -119,6 +119,15 @@ func (c *ClaudeToOpenAIConverter) ConvertClaudeRequestToOpenAI(body []byte) ([]b
 					}
 					openaiRequest.Messages = append(openaiRequest.Messages, toolMsg)
 				}
+				// Also add text content if present alongside tool results
+				// This handles cases like: [tool_result, tool_result, text]
+				if len(conversionResult.textParts) > 0 {
+					textMsg := chatMessage{
+						Role:    claudeMsg.Role,
+						Content: strings.Join(conversionResult.textParts, "\n\n"),
+					}
+					openaiRequest.Messages = append(openaiRequest.Messages, textMsg)
+				}
 			}
 
 			// Handle regular content if no tool calls or tool results

plugins/wasm-go/extensions/ai-proxy/provider/claude_to_openai_test.go

@@ -388,6 +388,7 @@ func TestClaudeToOpenAIConverter_ConvertClaudeRequestToOpenAI(t *testing.T) {
 
 	t.Run("convert_tool_result_with_actual_error_data", func(t *testing.T) {
 		// Test using the actual JSON data from the error log to ensure our fix works
+		// This tests the fix for issue #3344 - text content alongside tool_result should be preserved
 		claudeRequest := `{
 			"model": "anthropic/claude-sonnet-4", 
 			"messages": [{
@@ -415,14 +416,20 @@ func TestClaudeToOpenAIConverter_ConvertClaudeRequestToOpenAI(t *testing.T) {
 		err = json.Unmarshal(result, &openaiRequest)
 		require.NoError(t, err)
 
-		// Should have one tool message (the text content is included in the same message array)
+		// Should have two messages: tool message + user message with text content
-		require.Len(t, openaiRequest.Messages, 1)
+		// This is the fix for issue #3344 - text content alongside tool_result is preserved
+		require.Len(t, openaiRequest.Messages, 2)
 
-		// Should be tool message
+		// First should be tool message
 		toolMsg := openaiRequest.Messages[0]
 		assert.Equal(t, "tool", toolMsg.Role)
 		assert.Contains(t, toolMsg.Content, "three.js")
 		assert.Equal(t, "toolu_vrtx_01UbCfwoTgoDBqbYEwkVaxd5", toolMsg.ToolCallId)
+
+		// Second should be user message with text content
+		userMsg := openaiRequest.Messages[1]
+		assert.Equal(t, "user", userMsg.Role)
+		assert.Equal(t, "继续", userMsg.Content)
 	})
 
 	t.Run("convert_multiple_tool_calls", func(t *testing.T) {