diff --git a/.gitignore b/.gitignore
index e553ef6..ce3c366 100644
--- a/.gitignore
+++ b/.gitignore
@@ -5,4 +5,5 @@
 *.tar.gz
 build.sh
 compose.yml
-__pycache__
\ No newline at end of file
+__pycache__
+.cursor
\ No newline at end of file
diff --git a/mcp_go/README.md b/mcp_go/README.md
index 7433097..6ad64cd 100644
--- a/mcp_go/README.md
+++ b/mcp_go/README.md
@@ -202,6 +202,19 @@ func APIName(ctx context.Context, req *RequestType) (ResultType, error) {
     return resp.Data, nil
 }
 ```
+5. **Tool Registration (init.go)**
+
+The tool registration file `internal/tools/init.go` is used to centrally manage all tool registrations
+  - Register all tools uniformly in the `init()` function
+  - Use the `AppendTool()` method for registration
+  - Example:
+    ```go
+    // Register create application tool
+    AppendTool(&app.CreateApp{})
+    
+    // Register create blacklist rule tool
+    AppendTool(&rule.CreateBlacklistRule{})
+    ```
 
 ### Development Standards
 
diff --git a/mcp_go/internal/api/types.go b/mcp_go/internal/api/types.go
index 7eda553..5113ce2 100644
--- a/mcp_go/internal/api/types.go
+++ b/mcp_go/internal/api/types.go
@@ -1,5 +1,13 @@
 package api
 
+type PolicyRuleAction int
+
+const (
+	PolicyRuleActionAllow PolicyRuleAction = iota
+	PolicyRuleActionDeny
+	PolicyRuleActionMax
+)
+
 type Key = string
 
 const (
diff --git a/mcp_go/internal/tools/init.go b/mcp_go/internal/tools/init.go
index 8dbf1de..8331f47 100644
--- a/mcp_go/internal/tools/init.go
+++ b/mcp_go/internal/tools/init.go
@@ -1,8 +1,11 @@
 package tools
 
-import "github.com/chaitin/SafeLine/mcp_server/internal/tools/app"
+import (
+	"github.com/chaitin/SafeLine/mcp_server/internal/tools/app"
+	"github.com/chaitin/SafeLine/mcp_server/internal/tools/rule"
+)
 
 func init() {
-	AppendTool(&CalculateSum{})
 	AppendTool(&app.CreateApp{})
+	AppendTool(&rule.CreateBlacklistRule{})
 }
diff --git a/mcp_go/internal/tools/rule/create_blacklist_rule.go b/mcp_go/internal/tools/rule/create_blacklist_rule.go
index 0aec2dd..29a4ca5 100644
--- a/mcp_go/internal/tools/rule/create_blacklist_rule.go
+++ b/mcp_go/internal/tools/rule/create_blacklist_rule.go
@@ -32,6 +32,7 @@ func (t *CreateBlacklistRule) Execute(ctx context.Context, params CreateBlacklis
 		Name:      params.Name,
 		IP:        params.IP,
 		IsEnabled: true,
+		Action:    int(api.PolicyRuleActionDeny),
 		Pattern: [][]api.Pattern{
 			{
 				{