feat: add auto-injection flag for tools and filter auto-injected tools in UI

internal/controllers/console/ai_agent_controller.go

@@ -174,6 +174,9 @@ func buildAIAgentResponse(item *models.AIAgent) response.AIAgentResponse {
 				if toolCode == "" {
 					toolCode = toolx.BuildMCPToolCode(tool.ServerCode, tool.ToolName)
 				}
+				if toolx.IsAutoInjectedToolCode(toolCode) {
+					continue
+				}
 				serverCode := strings.TrimSpace(tool.ServerCode)
 				toolName := strings.TrimSpace(tool.ToolName)
 				if toolCode == toolx.BuiltinToolSearchToolCode {

internal/controllers/console/mcp_controller.go

@@ -39,6 +39,7 @@ func (c *MCPController) AnyCatalog() *web.JsonResult {
 			ServerCode:   item.ServerCode,
 			ToolName:     item.ToolName,
 			SourceType:   item.SourceType,
+			AutoInjected: item.AutoInjected,
 			Title:        item.Title,
 			Description:  item.Description,
 			InputSchema:  item.InputSchema,

internal/pkg/dto/response/mcp_response.go

@@ -70,6 +70,7 @@ type MCPToolCatalogResponse struct {
 	ServerCode   string `json:"serverCode"`
 	ToolName     string `json:"toolName"`
 	SourceType   string `json:"sourceType"`
+	AutoInjected bool   `json:"autoInjected"`
 	Title        string `json:"title"`
 	Description  string `json:"description"`
 	InputSchema  any    `json:"inputSchema"`

internal/pkg/toolx/builtin_tools.go

@@ -11,3 +11,7 @@ const (
 	BuiltinCreateTicketConfirmToolTitle       = "创建工单并发起确认"
 	BuiltinCreateTicketConfirmToolDescription = "当用户明确要求创建工单，且标题和描述已经整理清楚后调用。工具会先向用户确认，确认后才真正创建工单。"
 )
+
+func IsAutoInjectedToolCode(toolCode string) bool {
+	return toolCode == BuiltinToolSearchToolCode
+}

internal/services/ai_agent_service.go

@@ -294,6 +294,9 @@ func (s *aIAgentService) normalizeDirectTools(input []request.AIAgentMCPToolRequ
 		if err != nil {
 			return nil, err
 		}
+		if toolx.IsAutoInjectedToolCode(strings.TrimSpace(normalized.ToolCode)) {
+			continue
+		}
 		if err := ToolCatalogService.ValidateToolCode(normalized.ToolCode); err != nil {
 			return nil, err
 		}

internal/services/tool_catalog_service.go

@@ -24,6 +24,7 @@ type MCPToolCatalogItem struct {
 	ServerCode   string
 	ToolName     string
 	SourceType   string
+	AutoInjected bool
 	Title        string
 	Description  string
 	InputSchema  any
@@ -34,23 +35,25 @@ func (s *toolCatalogService) ListMCPTools(ctx context.Context) ([]MCPToolCatalog
 	cfg := config.Current()
 	ret := make([]MCPToolCatalogItem, 0, 2)
 	ret = append(ret, MCPToolCatalogItem{
-		ToolCode:    toolx.BuiltinCreateTicketConfirmToolCode,
-		ServerCode:  toolx.BuiltinToolCatalogServerCode,
-		ToolName:    toolx.BuiltinCreateTicketConfirmToolName,
-		SourceType:  toolx.BuiltinToolCatalogServerCode,
-		Title:       toolx.BuiltinCreateTicketConfirmToolTitle,
-		Description: toolx.BuiltinCreateTicketConfirmToolDescription,
+		ToolCode:     toolx.BuiltinCreateTicketConfirmToolCode,
+		ServerCode:   toolx.BuiltinToolCatalogServerCode,
+		ToolName:     toolx.BuiltinCreateTicketConfirmToolName,
+		SourceType:   toolx.BuiltinToolCatalogServerCode,
+		AutoInjected: false,
+		Title:        toolx.BuiltinCreateTicketConfirmToolTitle,
+		Description:  toolx.BuiltinCreateTicketConfirmToolDescription,
 	})
 	if !cfg.MCP.Enabled {
 		return ret, nil
 	}
 	ret = append(ret, MCPToolCatalogItem{
-		ToolCode:    toolx.BuiltinToolSearchToolCode,
-		ServerCode:  toolx.BuiltinToolCatalogServerCode,
-		ToolName:    toolx.BuiltinToolSearchToolName,
-		SourceType:  toolx.BuiltinToolCatalogServerCode,
-		Title:       toolx.BuiltinToolSearchToolTitle,
-		Description: toolx.BuiltinToolSearchToolDescription,
+		ToolCode:     toolx.BuiltinToolSearchToolCode,
+		ServerCode:   toolx.BuiltinToolCatalogServerCode,
+		ToolName:     toolx.BuiltinToolSearchToolName,
+		SourceType:   toolx.BuiltinToolCatalogServerCode,
+		AutoInjected: true,
+		Title:        toolx.BuiltinToolSearchToolTitle,
+		Description:  toolx.BuiltinToolSearchToolDescription,
 	})
 	serverCodes := make([]string, 0, len(cfg.MCP.Servers))
 	for serverCode, server := range cfg.MCP.Servers {
@@ -71,6 +74,7 @@ func (s *toolCatalogService) ListMCPTools(ctx context.Context) ([]MCPToolCatalog
 				ServerCode:   serverCode,
 				ToolName:     strings.TrimSpace(item.Name),
 				SourceType:   "mcp",
+				AutoInjected: false,
 				Title:        strings.TrimSpace(item.Title),
 				Description:  strings.TrimSpace(item.Description),
 				InputSchema:  item.InputSchema,

web/app/(console)/ai-agents/_components/edit.tsx

@@ -66,6 +66,7 @@ type DirectToolOption = {
   label: string;
   meta: DirectToolItem;
   sourceType: string;
+  autoInjected: boolean;
   groupLabel: string;
 };
 
@@ -354,23 +355,26 @@ function EditDialogBody({
         const catalog = await fetchMCPCatalog();
         setToolCatalog(catalog);
         setDirectToolOptions(
-          catalog.map((tool) => ({
-            value: tool.toolCode,
-            label: `${tool.title || tool.toolName} · ${tool.toolCode}`,
-            sourceType: tool.sourceType,
-            groupLabel:
-              tool.sourceType === "builtin"
-                ? "内置工具"
-                : tool.serverCode,
-            meta: {
-              toolCode: tool.toolCode,
-              serverCode: tool.serverCode,
-              toolName: tool.toolName,
-              title: tool.title || tool.toolName,
-              description: tool.description || "",
-              arguments: undefined,
-            },
-          })),
+          catalog
+            .filter((tool) => !tool.autoInjected)
+            .map((tool) => ({
+              value: tool.toolCode,
+              label: `${tool.title || tool.toolName} · ${tool.toolCode}`,
+              sourceType: tool.sourceType,
+              autoInjected: tool.autoInjected,
+              groupLabel:
+                tool.sourceType === "builtin"
+                  ? "内置工具"
+                  : tool.serverCode,
+              meta: {
+                toolCode: tool.toolCode,
+                serverCode: tool.serverCode,
+                toolName: tool.toolName,
+                title: tool.title || tool.toolName,
+                description: tool.description || "",
+                arguments: undefined,
+              },
+            })),
         );
       } catch (error) {
         toast.error(
@@ -869,6 +873,7 @@ function EditDialogBody({
                 <div className="mb-1 text-sm font-medium">Direct Tools</div>
                 <div className="mb-4 text-xs text-muted-foreground">
                   用于低风险、原子化的实时查询。可选择 MCP 工具，也可选择系统内置工具。
+                  `tool_search` 会由 Runtime 自动注入，这里不需要手动添加。
                 </div>
                 <Field>
                   <FieldContent className="space-y-3">

web/lib/api/admin.ts

@@ -334,6 +334,7 @@ export type MCPToolCatalogItem = {
   serverCode: string
   toolName: string
   sourceType: string
+  autoInjected: boolean
   title: string
   description: string
   inputSchema: unknown