diff --git a/neo/assistant/api.go b/neo/assistant/api.go
index b38288fe..6ce85c89 100644
--- a/neo/assistant/api.go
+++ b/neo/assistant/api.go
@@ -7,10 +7,11 @@ import (
 	"strings"
 
 	"github.com/gin-gonic/gin"
+	jsoniter "github.com/json-iterator/go"
 	"github.com/yaoapp/gou/fs"
 	"github.com/yaoapp/gou/process"
+	"github.com/yaoapp/kun/utils"
 	chatctx "github.com/yaoapp/yao/neo/context"
-	"github.com/yaoapp/yao/neo/message"
 	chatMessage "github.com/yaoapp/yao/neo/message"
 )
 
@@ -160,10 +161,10 @@ func (next *NextAction) Execute(c *gin.Context, ctx chatctx.Context) error {
 }
 
 // handleChatStream manages the streaming chat interaction with the AI
-func (ast *Assistant) handleChatStream(c *gin.Context, ctx chatctx.Context, messages []message.Message, options map[string]interface{}) error {
+func (ast *Assistant) handleChatStream(c *gin.Context, ctx chatctx.Context, messages []chatMessage.Message, options map[string]interface{}) error {
 	clientBreak := make(chan bool, 1)
 	done := make(chan bool, 1)
-	content := message.NewContent("text")
+	content := chatMessage.NewContent("text")
 
 	// Chat with AI in background
 	go func() {
@@ -190,11 +191,11 @@ func (ast *Assistant) handleChatStream(c *gin.Context, ctx chatctx.Context, mess
 func (ast *Assistant) streamChat(
 	c *gin.Context,
 	ctx chatctx.Context,
-	messages []message.Message,
+	messages []chatMessage.Message,
 	options map[string]interface{},
 	clientBreak chan bool,
 	done chan bool,
-	content *message.Content) error {
+	content *chatMessage.Content) error {
 
 	return ast.Chat(c.Request.Context(), messages, options, func(data []byte) int {
 		select {
@@ -276,7 +277,7 @@ func (ast *Assistant) streamChat(
 				// }
 
 				// Call HookDone
-				content.SetStatus(message.ContentStatusDone)
+				content.SetStatus(chatMessage.ContentStatusDone)
 				res, hookErr := ast.HookDone(c, ctx, messages, content.String(), content.Type == "function")
 				if hookErr == nil && res != nil {
 					if res.Output != "" {
@@ -316,7 +317,7 @@ func (ast *Assistant) streamChat(
 }
 
 // saveChatHistory saves the chat history if storage is available
-func (ast *Assistant) saveChatHistory(ctx chatctx.Context, messages []message.Message, content *message.Content) {
+func (ast *Assistant) saveChatHistory(ctx chatctx.Context, messages []chatMessage.Message, content *chatMessage.Content) {
 	if len(content.Bytes) > 0 && ctx.Sid != "" && len(messages) > 0 {
 		storage.SaveHistory(
 			ctx.Sid,
@@ -352,21 +353,21 @@ func (ast *Assistant) withOptions(options map[string]interface{}) map[string]int
 	return options
 }
 
-func (ast *Assistant) withPrompts(messages []message.Message) []message.Message {
+func (ast *Assistant) withPrompts(messages []chatMessage.Message) []chatMessage.Message {
 	if ast.Prompts != nil {
 		for _, prompt := range ast.Prompts {
 			name := ast.Name
 			if prompt.Name != "" {
 				name = prompt.Name
 			}
-			messages = append(messages, *message.New().Map(map[string]interface{}{"role": prompt.Role, "content": prompt.Content, "name": name}))
+			messages = append(messages, *chatMessage.New().Map(map[string]interface{}{"role": prompt.Role, "content": prompt.Content, "name": name}))
 		}
 	}
 	return messages
 }
 
-func (ast *Assistant) withHistory(ctx chatctx.Context, input string) ([]message.Message, error) {
-	messages := []message.Message{}
+func (ast *Assistant) withHistory(ctx chatctx.Context, input string) ([]chatMessage.Message, error) {
+	messages := []chatMessage.Message{}
 	messages = ast.withPrompts(messages)
 	if storage != nil {
 		history, err := storage.GetHistory(ctx.Sid, ctx.ChatID)
@@ -376,17 +377,17 @@ func (ast *Assistant) withHistory(ctx chatctx.Context, input string) ([]message.
 
 		// Add history messages
 		for _, h := range history {
-			messages = append(messages, *message.New().Map(h))
+			messages = append(messages, *chatMessage.New().Map(h))
 		}
 	}
 
 	// Add user message
-	messages = append(messages, *message.New().Map(map[string]interface{}{"role": "user", "content": input, "name": ctx.Sid}))
+	messages = append(messages, *chatMessage.New().Map(map[string]interface{}{"role": "user", "content": input, "name": ctx.Sid}))
 	return messages, nil
 }
 
 // Chat implements the chat functionality
-func (ast *Assistant) Chat(ctx context.Context, messages []message.Message, option map[string]interface{}, cb func(data []byte) int) error {
+func (ast *Assistant) Chat(ctx context.Context, messages []chatMessage.Message, option map[string]interface{}, cb func(data []byte) int) error {
 	if ast.openai == nil {
 		return fmt.Errorf("openai is not initialized")
 	}
@@ -404,27 +405,10 @@ func (ast *Assistant) Chat(ctx context.Context, messages []message.Message, opti
 	return nil
 }
 
-func (ast *Assistant) requestMessages(ctx context.Context, messages []message.Message) ([]map[string]interface{}, error) {
+func (ast *Assistant) requestMessages(ctx context.Context, messages []chatMessage.Message) ([]map[string]interface{}, error) {
 	newMessages := []map[string]interface{}{}
-	// With Prompts
-	if ast.Prompts != nil {
-		for _, prompt := range ast.Prompts {
-			msg := map[string]interface{}{
-				"role":    prompt.Role,
-				"content": prompt.Content,
-			}
-
-			name := ast.Name
-			if prompt.Name != "" {
-				name = prompt.Name
-			}
-
-			msg["name"] = name
-			newMessages = append(newMessages, msg)
-		}
-	}
-
 	length := len(messages)
+
 	for index, message := range messages {
 		role := message.Role
 		if role == "" {
@@ -454,12 +438,24 @@ func (ast *Assistant) requestMessages(ctx context.Context, messages []message.Me
 			}
 
 			newMessage["content"] = msg.Text
-			if msg.Attachments != nil {
-				content, err := ast.withAttachments(ctx, msg)
+			if message.Attachments != nil {
+				contents, err := ast.withAttachments(ctx, &message)
 				if err != nil {
 					return nil, fmt.Errorf("with attachments error: %s", err.Error())
 				}
-				newMessage["content"] = content
+
+				// if current assistant is vision capable, add the contents directly
+				if ast.vision {
+					newMessage["content"] = contents
+					continue
+				}
+
+				// If current assistant is not vision capable, add the description of the image
+				if contents != nil {
+					for _, content := range contents {
+						newMessages = append(newMessages, content)
+					}
+				}
 			}
 		}
 
@@ -470,10 +466,27 @@ func (ast *Assistant) requestMessages(ctx context.Context, messages []message.Me
 
 func (ast *Assistant) withAttachments(ctx context.Context, msg *chatMessage.Message) ([]map[string]interface{}, error) {
 	contents := []map[string]interface{}{{"type": "text", "text": msg.Text}}
+	if !ast.vision {
+		contents = []map[string]interface{}{{"role": "user", "content": msg.Text}}
+	}
+
 	images := []string{}
 	for _, attachment := range msg.Attachments {
 		if strings.HasPrefix(attachment.ContentType, "image/") {
-			images = append(images, attachment.FileID)
+			if ast.vision {
+				images = append(images, attachment.URL)
+				continue
+			}
+
+			// If the current assistant is not vision capable, add the description of the image
+			raw, err := jsoniter.MarshalToString(attachment)
+			if err != nil {
+				return nil, fmt.Errorf("marshal attachment error: %s", err.Error())
+			}
+			contents = append(contents, map[string]interface{}{
+				"role":    "system",
+				"content": raw,
+			})
 		}
 	}
 
@@ -481,20 +494,40 @@ func (ast *Assistant) withAttachments(ctx context.Context, msg *chatMessage.Mess
 		return contents, nil
 	}
 
-	for _, image := range images {
-		bytes64, err := ast.ReadBase64(ctx, image)
-		if err != nil {
-			return nil, fmt.Errorf("read base64 error: %s", err.Error())
+	// If the current assistant is vision capable, add the image to the contents directly
+	if ast.vision {
+		for _, url := range images {
+
+			// If the image is already a URL, add it directly
+			if strings.HasPrefix(url, "http") {
+				contents = append(contents, map[string]interface{}{
+					"type": "image_url",
+					"image_url": map[string]string{
+						"url": url,
+					},
+				})
+				continue
+			}
+
+			// Read base64
+			bytes64, err := ast.ReadBase64(ctx, url)
+			if err != nil {
+				return nil, fmt.Errorf("read base64 error: %s", err.Error())
+			}
+			contents = append(contents, map[string]interface{}{
+				"type": "image_url",
+				"image_url": map[string]string{
+					"url": fmt.Sprintf("data:image/jpeg;base64,%s", bytes64),
+				},
+			})
 		}
 
-		contents = append(contents, map[string]interface{}{
-			"type": "image_url",
-			"image_url": map[string]string{
-				"url": fmt.Sprintf("data:image/jpeg;base64,%s", bytes64),
-			},
-		})
+		utils.Dump(contents)
+		return contents, nil
 	}
 
+	// If the current assistant is not vision capable, add the description of the image
+
 	return contents, nil
 }
 
diff --git a/neo/assistant/attachment.go b/neo/assistant/attachment.go
index 61defd88..f018d21f 100644
--- a/neo/assistant/attachment.go
+++ b/neo/assistant/attachment.go
@@ -197,12 +197,22 @@ func (ast *Assistant) handleRAG(ctx context.Context, file *File, reader io.Reade
 
 // handleVision handles the file with Vision if available
 func (ast *Assistant) handleVision(ctx context.Context, file *File, option map[string]interface{}) error {
+
 	if vision == nil {
 		return nil
 	}
 
-	// Check if Vision processing is enabled
-	if option, ok := option["vision"].(bool); !ok || !option {
+	handleVision := false
+	if vv, has := option["vision"]; has {
+		switch v := vv.(type) {
+		case bool:
+			handleVision = v
+		case string:
+			handleVision = v == "true" || v == "1" || v == "yes" || v == "on" || v == "enable"
+		}
+	}
+
+	if !handleVision {
 		return nil
 	}
 
@@ -211,12 +221,6 @@ func (ast *Assistant) handleVision(ctx context.Context, file *File, option map[s
 		return nil
 	}
 
-	// Get model from options
-	model := ""
-	if v, ok := option["model"].(string); ok {
-		model = v
-	}
-
 	// Reset reader for vision service
 	data, err := fs.Get("data")
 	if err != nil {
@@ -237,43 +241,48 @@ func (ast *Assistant) handleVision(ctx context.Context, file *File, option map[s
 		return fmt.Errorf("read file error: %s", err.Error())
 	}
 
-	if VisionCapableModels[model] {
+	// The model is vision capable
+	if ast.vision {
 		// For vision-capable models, upload to vision service to get URL
 		resp, err := vision.Upload(ctx, file.Filename, bytes.NewReader(imgData), file.ContentType)
 		if err != nil {
 			return fmt.Errorf("vision upload error: %s", err.Error())
 		}
 		file.URL = resp.URL // Store the URL for vision-capable models to use
+		return nil
+	}
+
+	// For non-vision models, get image description
+	prompt := "Describe this image in detail."
+	if v, ok := option["vision_prompt"].(string); ok {
+		prompt = v
+	}
+
+	// Upload to vision service first Compress image
+	resp, err := vision.Upload(ctx, file.Filename, bytes.NewReader(imgData), file.ContentType)
+	if err != nil {
+		return fmt.Errorf("vision upload error: %s", err.Error())
+	}
+
+	// Analyze using base64 data
+	result, err := vision.Analyze(ctx, resp.FileID, prompt)
+	if err != nil {
+		return fmt.Errorf("vision analyze error: %s", err.Error())
+	}
+
+	// Extract description text from response
+	if desc, ok := result.Description["description"].(string); ok {
+		file.Description = desc
+	} else if desc, ok := result.Description["text"].(string); ok {
+		file.Description = desc
 	} else {
-		// For non-vision models, get image description
-		prompt := "Describe this image in detail."
-		if v, ok := option["vision_prompt"].(string); ok {
-			prompt = v
-		}
-
-		// Upload to vision service first Compress image
-		resp, err := vision.Upload(ctx, file.Filename, bytes.NewReader(imgData), file.ContentType)
-		if err != nil {
-			return fmt.Errorf("vision upload error: %s", err.Error())
-		}
-
-		// Analyze using base64 data
-		result, err := vision.Analyze(ctx, resp.FileID, prompt)
-		if err != nil {
-			return fmt.Errorf("vision analyze error: %s", err.Error())
-		}
-
-		// Extract description text from response
-		if desc, ok := result.Description["text"].(string); ok {
-			file.Description = desc
-		} else {
-			// Convert the entire description to JSON string as fallback
-			bytes, err := jsoniter.Marshal(result.Description)
-			if err == nil {
-				file.Description = string(bytes)
-			}
+		// Convert the entire description to JSON string as fallback
+		bytes, err := jsoniter.Marshal(result.Description)
+		if err == nil {
+			file.Description = string(bytes)
 		}
 	}
+
 	return nil
 }
 
diff --git a/neo/assistant/load.go b/neo/assistant/load.go
index de95ef68..9cbd7dff 100644
--- a/neo/assistant/load.go
+++ b/neo/assistant/load.go
@@ -517,5 +517,25 @@ func (ast *Assistant) initialize() error {
 		return err
 	}
 	ast.openai = api
+
+	// Check if the assistant supports vision
+	model := api.Model()
+	if v, ok := ast.Options["model"].(string); ok {
+		model = strings.TrimLeft(v, "moapi:")
+	}
+	if _, ok := VisionCapableModels[model]; ok {
+		ast.vision = true
+	}
+
+	// Check if the assistant has an init hook
+	if ast.Script != nil {
+		scriptCtx, err := ast.Script.NewContext("", nil)
+		if err != nil {
+			return err
+		}
+		defer scriptCtx.Close()
+		ast.initHook = scriptCtx.Global().Has("init")
+	}
+
 	return nil
 }
diff --git a/neo/assistant/types.go b/neo/assistant/types.go
index 535bfdf1..eb6ee90f 100644
--- a/neo/assistant/types.go
+++ b/neo/assistant/types.go
@@ -126,6 +126,8 @@ type Assistant struct {
 	CreatedAt   int64                    `json:"created_at"`            // Creation timestamp
 	UpdatedAt   int64                    `json:"updated_at"`            // Last update timestamp
 	openai      *api.OpenAI              // OpenAI API
+	vision      bool                     // Whether this assistant supports vision
+	initHook    bool                     // Whether this assistant has an init hook
 }
 
 // VisionCapableModels list of LLM models that support vision capabilities
diff --git a/neo/message/message.go b/neo/message/message.go
index 97c90ee6..e9ce0cea 100644
--- a/neo/message/message.go
+++ b/neo/message/message.go
@@ -31,6 +31,7 @@ type Message struct {
 type Attachment struct {
 	Name        string `json:"name,omitempty"`
 	URL         string `json:"url,omitempty"`
+	Description string `json:"description,omitempty"`
 	Type        string `json:"type,omitempty"`
 	ContentType string `json:"content_type,omitempty"`
 	Bytes       int64  `json:"bytes,omitempty"`
diff --git a/openai/openai.go b/openai/openai.go
index 825a09e4..2ed4eb25 100644
--- a/openai/openai.go
+++ b/openai/openai.go
@@ -127,6 +127,11 @@ func NewMoapi(model string) (*OpenAI, error) {
 	}, nil
 }
 
+// Model get the model
+func (openai OpenAI) Model() string {
+	return openai.model
+}
+
 // Completions Creates a completion for the provided prompt and parameters.
 // https://platform.openai.com/docs/api-reference/completions/create
 func (openai OpenAI) Completions(prompt interface{}, option map[string]interface{}, cb func(data []byte) int) (interface{}, *exception.Exception) {