diff --git a/package.json b/package.json
index 94d8dac..ce6330d 100644
--- a/package.json
+++ b/package.json
@@ -8,9 +8,8 @@
   "author": "Lossless GmbH",
   "license": "MIT",
   "scripts": {
-    "test": "(tstest test/)",
-    "build": "(tsbuild)",
-    "format": "(gitzone format)"
+    "test": "(tstest test/ --web)",
+    "build": "(tsbuild --web)"
   },
   "devDependencies": {
     "@gitzone/tsbuild": "^2.0.22",
diff --git a/test/test.ts b/test/test.ts
index d2b9aeb..b546024 100644
--- a/test/test.ts
+++ b/test/test.ts
@@ -10,6 +10,16 @@ tap.test('should create a valid Handler', async () => {
       let response: any;
       return response;
     }
+    public async checkReqirements() {
+      return {
+        allOk: true,
+        reason: ''
+      }
+    }
+
+    public async start() {}
+
+    public async stop() {}
   }
 
   const myHandlerInstance = new MyHandler();
diff --git a/ts/sdk.classes.aghandler.ts b/ts/sdk.classes.aghandler.ts
index c272b05..6668a4b 100644
--- a/ts/sdk.classes.aghandler.ts
+++ b/ts/sdk.classes.aghandler.ts
@@ -1,14 +1,24 @@
 import * as plugins from './sdk.plugins';
 import { AuthInfo } from './sdk.classes.authinfo';
 
+export interface IRequirementResult {
+  allOk: boolean;
+  reason: string;
+}
+
 export abstract class AAgHandler<TClaim> {
   /**
    * a slug that separates the handler from other handlers
    */
   public abstract slug: string;
 
-  public abstract handleRequest (authInfoArg: AuthInfo<TClaim>, request: plugins.tsclass.network.ISimpleRequest): Promise<plugins.tsclass.network.ISimpleResponse>;
 
+  public abstract handleRequest (authInfoArg: AuthInfo<TClaim>, request: plugins.tsclass.network.ISimpleRequest): Promise<plugins.tsclass.network.ISimpleResponse>;
+  public abstract checkReqirements (): Promise<IRequirementResult>;
+
+  /**
+   * start the ag-handler
+   */
   public abstract start(): Promise<any>;
   public abstract stop(): Promise<any>;
 }
\ No newline at end of file