Fix/dashscope mulit model

assistant-agent-start/src/main/java/com/alibaba/assistant/agent/start/config/CodeactAgentConfig.java

@@ -30,7 +30,9 @@
 import com.alibaba.assistant.agent.common.enums.Language;
 import com.alibaba.assistant.agent.extension.prompt.CodeactToolSignatureInjectionToolCallback;
 import com.alibaba.assistant.agent.extension.prompt.PromptContributionToolCallback;
+import com.alibaba.assistant.agent.start.interceptor.modelInterceptor.DashScopeMultimodalEndpointInterceptor;
 import com.alibaba.cloud.ai.graph.agent.hook.Hook;
+import com.alibaba.cloud.ai.graph.agent.interceptor.ModelInterceptor;
 import com.alibaba.cloud.ai.graph.checkpoint.savers.MemorySaver;
 import org.slf4j.Logger;
 import org.slf4j.LoggerFactory;
@@ -41,6 +43,7 @@
 import org.springframework.beans.factory.annotation.Qualifier;
 import org.springframework.context.annotation.Bean;
 import org.springframework.context.annotation.Configuration;
+import org.springframework.core.env.Environment;
 
 import java.util.ArrayList;
 import java.util.List;
@@ -222,6 +225,7 @@ def calculate_sum(a, b):
 	@Bean
 	public CodeactAgent grayscaleCodeactAgent(
 			ChatModel chatModel,
+            @Autowired(required = false) Environment environment,
 			@Autowired(required = false) List<ReplyCodeactTool> replyCodeactTools,
 			@Autowired(required = false) SearchCodeactToolFactory searchCodeactToolFactory,
 			@Autowired(required = false) List<TriggerCodeactTool> triggerCodeactTools,
@@ -313,6 +317,9 @@ public CodeactAgent grayscaleCodeactAgent(
         logger.info("CodeactAgentConfig#grayscaleCodeactAgent - reason=统一配置 Hooks, total={}",
                 allHooks != null ? allHooks.size() : 0);
 
+        List<ModelInterceptor> modelInterceptors = new ArrayList<>();
+        modelInterceptors.add(new DashScopeMultimodalEndpointInterceptor(environment));
+
 		CodeactAgent.CodeactAgentBuilder builder = CodeactAgent.builder()
 				.name("CodeactAgent")
 				.description("通过编写和执行 Python 代码来解决问题的代码驱动智能体")

assistant-agent-start/src/main/java/com/alibaba/assistant/agent/start/interceptor/modelInterceptor/DashScopeMultimodalEndpointInterceptor.java

@@ -0,0 +1,65 @@
+package com.alibaba.assistant.agent.start.interceptor.modelInterceptor;
+
+import com.alibaba.cloud.ai.dashscope.chat.DashScopeChatOptions;
+import com.alibaba.cloud.ai.graph.agent.interceptor.ModelCallHandler;
+import com.alibaba.cloud.ai.graph.agent.interceptor.ModelInterceptor;
+import com.alibaba.cloud.ai.graph.agent.interceptor.ModelRequest;
+import com.alibaba.cloud.ai.graph.agent.interceptor.ModelResponse;
+import org.slf4j.Logger;
+import org.slf4j.LoggerFactory;
+import org.springframework.ai.model.ModelOptionsUtils;
+import org.springframework.ai.model.tool.ToolCallingChatOptions;
+import org.springframework.core.env.Environment;
+
+/**
+ * 确保 Graph 传入的 {@link ModelRequest#getOptions()} 在合并后仍走 DashScope 多模态端点。
+ *
+ * <p>阿里云文档：qwen3.6-plus 等模型若用纯文本端点会报 {@code url error}。框架层可能下发
+ * {@code multiModel=false} 的选项并覆盖 {@code application.yml} 默认值，本拦截器在调用链最前段纠偏。
+ */
+public class DashScopeMultimodalEndpointInterceptor extends ModelInterceptor {
+
+    private static final Logger log = LoggerFactory.getLogger(DashScopeMultimodalEndpointInterceptor.class);
+
+    private final Environment environment;
+
+    public DashScopeMultimodalEndpointInterceptor(Environment environment) {
+        this.environment = environment;
+    }
+
+    @Override
+    public String getName() {
+        return "DashScopeMultimodalEndpointInterceptor";
+    }
+
+    @Override
+    public ModelResponse interceptModel(ModelRequest request, ModelCallHandler handler) {
+        if (!Boolean.parseBoolean(
+                environment.getProperty("spring.ai.dashscope.chat.options.multi-model", "true"))) {
+            return handler.call(request);
+        }
+        ToolCallingChatOptions options = request.getOptions();
+        if (options == null) {
+            return handler.call(request);
+        }
+        try {
+            DashScopeChatOptions dash;
+            if (options instanceof DashScopeChatOptions dso) {
+                dash = DashScopeChatOptions.fromOptions(dso);
+            } else {
+                dash = ModelOptionsUtils.copyToTarget(options, ToolCallingChatOptions.class, DashScopeChatOptions.class);
+            }
+            Boolean before = dash.getMultiModel();
+            if (!Boolean.TRUE.equals(before)) {
+                dash.setMultiModel(true);
+                log.debug("DashScopeMultimodalEndpointInterceptor: set multiModel true (was {})", before);
+                ModelRequest patched = ModelRequest.builder(request).options(dash).build();
+                return handler.call(patched);
+            }
+        } catch (Exception e) {
+            log.warn("DashScopeMultimodalEndpointInterceptor: failed to patch options, passing request through: {}",
+                     e.toString());
+        }
+        return handler.call(request);
+    }
+}