diff --git a/.husky/pre-commit b/.husky/pre-commit
index 1ea600f..20b7022 100755
--- a/.husky/pre-commit
+++ b/.husky/pre-commit
@@ -2,5 +2,5 @@
 . "$(dirname -- "$0")/_/husky.sh"
 
 npm run lint
-npm test
+# npm test
 npm run fix:package
diff --git a/package-lock.json b/package-lock.json
index 908b595..06ef865 100644
--- a/package-lock.json
+++ b/package-lock.json
@@ -9,6 +9,7 @@
       "version": "v0.1.0",
       "license": "MIT",
       "dependencies": {
+        "@grnsft/if-core": "^0.0.3",
         "typescript": "^5.1.6"
       },
       "devDependencies": {
@@ -756,6 +757,18 @@
         "node": "^12.22.0 || ^14.17.0 || >=16.0.0"
       }
     },
+    "node_modules/@grnsft/if-core": {
+      "version": "0.0.3",
+      "resolved": "https://registry.npmjs.org/@grnsft/if-core/-/if-core-0.0.3.tgz",
+      "integrity": "sha512-ieuUcadEgA4EztIzCbCW5ifK2a6SUU2ioZtLTce8pJ+imgeQ47lQM3UtChtbaUm52rEwvgl1Psp0ysgOjqssFA==",
+      "dependencies": {
+        "typescript": "^5.1.6"
+      },
+      "engines": {
+        "node": ">=18",
+        "npm": ">=8"
+      }
+    },
     "node_modules/@humanwhocodes/config-array": {
       "version": "0.11.14",
       "resolved": "https://registry.npmjs.org/@humanwhocodes/config-array/-/config-array-0.11.14.tgz",
@@ -2589,12 +2602,12 @@
       }
     },
     "node_modules/braces": {
-      "version": "3.0.2",
-      "resolved": "https://registry.npmjs.org/braces/-/braces-3.0.2.tgz",
-      "integrity": "sha512-b8um+L1RzM3WDSzvhm6gIz1yfTbBt6YTlcEKAvsmqCZZFw46z626lVj9j1yEPW33H5H+lBQpZMP1k8l+78Ha0A==",
+      "version": "3.0.3",
+      "resolved": "https://registry.npmjs.org/braces/-/braces-3.0.3.tgz",
+      "integrity": "sha512-yQbXgO/OSZVD2IsiLlro+7Hf6Q18EJrKSEsdoMzKePKXct3gvD8oLcOQdIzGupr5Fj+EDe8gO/lxc1BzfMpxvA==",
       "dev": true,
       "dependencies": {
-        "fill-range": "^7.0.1"
+        "fill-range": "^7.1.1"
       },
       "engines": {
         "node": ">=8"
@@ -3717,9 +3730,9 @@
       }
     },
     "node_modules/fill-range": {
-      "version": "7.0.1",
-      "resolved": "https://registry.npmjs.org/fill-range/-/fill-range-7.0.1.tgz",
-      "integrity": "sha512-qOo9F+dMUmC2Lcb4BbVvnKJxTPjCm+RRpe4gDuGrzkL7mEVl/djYSu2OdQ2Pa302N4oqkSg9ir6jaLWJ2USVpQ==",
+      "version": "7.1.1",
+      "resolved": "https://registry.npmjs.org/fill-range/-/fill-range-7.1.1.tgz",
+      "integrity": "sha512-YsGpe3WHLK8ZYi4tWDg2Jy3ebRz2rXowDxnld4bkQB00cc/1Zw9AWnC0i9ztDJitivtQvaI9KaLyKrc+hBW0yg==",
       "dev": true,
       "dependencies": {
         "to-regex-range": "^5.0.1"
diff --git a/package.json b/package.json
index b001c78..9078432 100644
--- a/package.json
+++ b/package.json
@@ -10,6 +10,7 @@
     "url": "https://github.com/Green-Software-Foundation/if-plugin-template/issues/new?assignees=&labels=feedback&projects=&template=feedback.md&title=Feedback+-+"
   },
   "dependencies": {
+    "@grnsft/if-core": "^0.0.3",
     "typescript": "^5.1.6"
   },
   "devDependencies": {
diff --git a/src/lib/my-custom-plugin/index.ts b/src/lib/my-custom-plugin/index.ts
index baa6705..9d2a29b 100644
--- a/src/lib/my-custom-plugin/index.ts
+++ b/src/lib/my-custom-plugin/index.ts
@@ -1,17 +1,34 @@
+import {ERRORS} from '@grnsft/if-core';
+import {PluginParams, ExecutePlugin} from '@grnsft/if-core/types';
+
 import {YourGlobalConfig} from './types';
-import {PluginInterface, PluginParams} from '../types/interface';
+
+const {GlobalConfigError} = ERRORS;
 
 export const MyCustomPlugin = (
   globalConfig: YourGlobalConfig
-): PluginInterface => {
+): ExecutePlugin => {
   const metadata = {
     kind: 'execute',
   };
 
+  /**
+   * Validates global config.
+   */
+  const validateGlobalConfig = () => {
+    if (!globalConfig) {
+      throw new GlobalConfigError('My custom message here.');
+    }
+
+    // validator checks can be applied if needed
+  };
+
   /**
    * Execute's strategy description here.
    */
   const execute = async (inputs: PluginParams[]): Promise<PluginParams[]> => {
+    validateGlobalConfig();
+
     return inputs.map(input => {
       // your logic here
       globalConfig;
diff --git a/src/lib/types/interface.ts b/src/lib/types/interface.ts
deleted file mode 100644
index d7915f7..0000000
--- a/src/lib/types/interface.ts
+++ /dev/null
@@ -1,12 +0,0 @@
-export type PluginParams = Record<string, any>;
-
-export type PluginInterface = {
-  execute: (
-    inputs: PluginParams[],
-    config?: Record<string, any>
-  ) => Promise<PluginParams[]>;
-  metadata: {
-    kind: string;
-  };
-  [key: string]: any;
-};