feat: Validate model type and model name compatibility

internal/version/VERSION

@@ -1 +1 @@
-v5.0.0-beta-2505260928
+v5.0.0-beta-2505260940

mcphost/chat.go

@@ -25,7 +25,7 @@ import (
 // NewChat creates a new chat session
 func (h *MCPHost) NewChat(ctx context.Context) (*Chat, error) {
 	// Get model config from environment variables
-	modelConfig, err := ai.GetModelConfig(option.LLMServiceTypeUITARS)
+	modelConfig, err := ai.GetModelConfig(option.LLMServiceTypeDoubaoVL)
 	if err != nil {
 		return nil, err
 	}

uixt/ai/ai.go

@@ -2,7 +2,9 @@ package ai
 
 import (
 	"context"
+	"fmt"
 	"os"
+	"strings"
 	"time"
 
 	"github.com/cloudwego/eino-ext/components/model/openai"
@@ -95,6 +97,11 @@ func GetModelConfig(modelType option.LLMServiceType) (*ModelConfig, error) {
 			"env %s missed", EnvModelName)
 	}
 
+	// Validate model type and model name compatibility
+	if err := validateModelType(modelType, modelName); err != nil {
+		return nil, err
+	}
+
 	// https://www.volcengine.com/docs/82379/1536429
 	temperature := float32(0)
 	topP := float32(0.7)
@@ -120,6 +127,23 @@ func GetModelConfig(modelType option.LLMServiceType) (*ModelConfig, error) {
 	}, nil
 }
 
+func validateModelType(modelType option.LLMServiceType, modelName string) error {
+	switch modelType {
+	case option.LLMServiceTypeUITARS:
+		if !strings.Contains(modelName, "ui-tars") {
+			return fmt.Errorf("model name %s is not supported for %s", modelName, modelType)
+		}
+		return nil
+	case option.LLMServiceTypeDoubaoVL:
+		if !strings.Contains(modelName, "doubao") || !strings.Contains(modelName, "vision") {
+			return fmt.Errorf("model name %s is not supported", modelName)
+		}
+		return nil
+	}
+
+	return fmt.Errorf("model type %s is not supported", modelType)
+}
+
 // maskAPIKey masks the API key
 func maskAPIKey(key string) string {
 	if len(key) <= 8 {