diff --git a/nodepkg/typedef/package.json b/nodepkg/typedef/package.json
index a109fd14..e3dba62b 100644
--- a/nodepkg/typedef/package.json
+++ b/nodepkg/typedef/package.json
@@ -1,6 +1,6 @@
 {
   "name": "@innoai-tech/typedef",
-  "version": "0.2.20",
+  "version": "0.2.21",
   "monobundle": {
     "exports": {
       ".": "./src/index.ts"
diff --git a/nodepkg/typedef/src/core/t.refiners.ts b/nodepkg/typedef/src/core/t.refiners.ts
index 91c370fb..cecf2628 100644
--- a/nodepkg/typedef/src/core/t.refiners.ts
+++ b/nodepkg/typedef/src/core/t.refiners.ts
@@ -1,19 +1,88 @@
-import { Type, TypeWrapper } from "./Type";
+import {Type, TypeWrapper} from "./Type";
 
 export function pattern(pattern: RegExp, msg?: string) {
-	return <T extends Type<string, any>>(type: T): Type<string, any> => {
-		return TypeWrapper.refine(
-			type,
-			(value) => {
-				return (
-					pattern.test(value) ||
-					(msg ??
-						`Expected a ${type.type} matching \`/${pattern.source}/\` but received "${value}"`)
-				);
-			},
-			{
-				pattern,
-			},
-		);
-	};
+    return <T extends Type<string, any>>(type: T): Type<string, any> => {
+        return TypeWrapper.refine(type, (value) => {
+            if (pattern.test(value)) {
+                return true
+            }
+            return msg ?? `Expected a ${type.type} matching \`/${pattern.source}/\` but received "${value}"`
+        }, {
+            pattern,
+        });
+    };
 }
+
+export function minimum(min: number, msg?: string) {
+    return <T extends Type<number, any>>(type: T): Type<number, any> => {
+        return TypeWrapper.refine(type, (value) => {
+            if (value >= min) {
+                return true
+            }
+            return msg ?? `Expected value great than or equal ${min}, but received "${value}"`
+        }, {
+            minimum: min,
+        });
+    };
+}
+
+export function exclusiveMinimum(min: number, msg?: string) {
+    return <T extends Type<number, any>>(type: T): Type<number, any> => {
+        return TypeWrapper.refine(type, (value) => {
+            if (value > min) {
+                return true
+            }
+            return (msg ?? `Expected value great than ${min}, but received "${value}"`)
+        }, {
+            minimum: min,
+        });
+    };
+}
+
+export function maximum(max: number, msg?: string) {
+    return <T extends Type<number, any>>(type: T): Type<number, any> => {
+        return TypeWrapper.refine(type, (value) => {
+            if (value <= max) {
+                return true
+            }
+            return (msg ?? `Expected value less than or equal ${max}, but received "${value}"`)
+        }, {
+            maximum: max,
+        });
+    };
+}
+
+
+export function exclusiveMaximum(max: number, msg?: string) {
+    return <T extends Type<number, any>>(type: T): Type<number, any> => {
+        return TypeWrapper.refine(type, (value) => {
+            if (value < max) {
+                return true
+            }
+            return msg ?? `Expected value less than or equal ${max}, but received "${value}"`
+        }, {
+            maximum: max,
+        });
+    };
+}
+
+
+export function multipleOf(target: number, msg?: string) {
+    return <T extends Type<number, any>>(type: T): Type<number, any> => {
+        return TypeWrapper.refine(type, (value) => {
+            if (value % target == 0) {
+                return true
+            }
+            return msg ?? `Expected value multiple of ${target}, but received "${value}"`
+        }, {
+            multipleOf: target,
+        });
+    };
+}
+
+
+
+
+
+
+