diff --git a/changelog.md b/changelog.md
index 3be13e8..c952098 100644
--- a/changelog.md
+++ b/changelog.md
@@ -1,5 +1,11 @@
 # Changelog
 
+## 2025-04-28 - 2.0.1 - fix(assertion-matchers)
+Refactor matcher implementations to consistently use customAssertion for improved consistency and clarity.
+
+- Updated ArrayMatchers, BooleanMatchers, DateMatchers, FunctionMatchers, NumberMatchers, ObjectMatchers, StringMatchers, and TypeMatchers to use customAssertion directly.
+- Aligned Assertion class aliases to delegate to the namespaced matchers with the new customAssertion pattern.
+
 ## 2025-04-28 - 2.0.0 - BREAKING CHANGE(docs)
 Update documentation and examples to unify async and sync assertions, add custom matcher guides, and update package configuration
 
diff --git a/ts/00_commitinfo_data.ts b/ts/00_commitinfo_data.ts
index 561d48b..a3d68d1 100644
--- a/ts/00_commitinfo_data.ts
+++ b/ts/00_commitinfo_data.ts
@@ -3,6 +3,6 @@
  */
 export const commitinfo = {
   name: '@push.rocks/smartexpect',
-  version: '2.0.0',
+  version: '2.0.1',
   description: 'A testing library to manage expectations in code, offering both synchronous and asynchronous assertion methods.'
 }
diff --git a/ts/namespaces/array.ts b/ts/namespaces/array.ts
index 0b222b8..b8015a1 100644
--- a/ts/namespaces/array.ts
+++ b/ts/namespaces/array.ts
@@ -1,4 +1,5 @@
 import { Assertion } from '../smartexpect.classes.assertion.js';
+import * as plugins from '../plugins.js';
 
 /**
  * Namespace for array-specific matchers
@@ -7,38 +8,65 @@ export class ArrayMatchers<T> {
   constructor(private assertion: Assertion<T[]>) {}
 
   toBeArray() {
-    return this.assertion.toBeArray();
+    return this.assertion.customAssertion(
+      (value) => Array.isArray(value),
+      `Expected value to be array`
+    );
   }
 
   toHaveLength(length: number) {
-    return this.assertion.toHaveLength(length);
+    return this.assertion.customAssertion(
+      (value) => (value as T[]).length === length,
+      `Expected array to have length ${length}`
+    );
   }
 
   toContain(item: T) {
-    return this.assertion.toContain(item);
+    return this.assertion.customAssertion(
+      (value) => (value as T[]).includes(item),
+      `Expected array to contain ${JSON.stringify(item)}`
+    );
   }
 
   toContainEqual(item: T) {
-    return this.assertion.toContainEqual(item);
+    return this.assertion.customAssertion(
+      (value) => (value as T[]).some((e) => plugins.fastDeepEqual(e, item)),
+      `Expected array to contain equal to ${JSON.stringify(item)}`
+    );
   }
 
   toContainAll(items: T[]) {
-    return this.assertion.toContainAll(items);
+    return this.assertion.customAssertion(
+      (value) => items.every((i) => (value as T[]).includes(i)),
+      `Expected array to contain all ${JSON.stringify(items)}`
+    );
   }
 
   toExclude(item: T) {
-    return this.assertion.toExclude(item);
+    return this.assertion.customAssertion(
+      (value) => !(value as T[]).includes(item),
+      `Expected array to exclude ${JSON.stringify(item)}`
+    );
   }
 
   toBeEmptyArray() {
-    return this.assertion.toBeEmptyArray();
+    return this.assertion.customAssertion(
+      (value) => Array.isArray(value) && (value as T[]).length === 0,
+      `Expected array to be empty`
+    );
   }
 
   toHaveLengthGreaterThan(length: number) {
-    return this.assertion.toHaveLengthGreaterThan(length);
+    return this.assertion.customAssertion(
+      (value) => (value as T[]).length > length,
+      `Expected array to have length greater than ${length}`
+    );
   }
 
   toHaveLengthLessThan(length: number) {
-    return this.assertion.toHaveLengthLessThan(length);
+    return this.assertion.customAssertion(
+      (value) => (value as T[]).length < length,
+      `Expected array to have length less than ${length}`
+    );
   }
 }
\ No newline at end of file
diff --git a/ts/namespaces/boolean.ts b/ts/namespaces/boolean.ts
index 017bccd..68b841c 100644
--- a/ts/namespaces/boolean.ts
+++ b/ts/namespaces/boolean.ts
@@ -7,18 +7,30 @@ export class BooleanMatchers {
   constructor(private assertion: Assertion<boolean>) {}
 
   toBeTrue() {
-    return this.assertion.toBeTrue();
+    return this.assertion.customAssertion(
+      (v) => v === true,
+      `Expected value to be true`
+    );
   }
 
   toBeFalse() {
-    return this.assertion.toBeFalse();
+    return this.assertion.customAssertion(
+      (v) => v === false,
+      `Expected value to be false`
+    );
   }
 
   toBeTruthy() {
-    return this.assertion.toBeTruthy();
+    return this.assertion.customAssertion(
+      (v) => Boolean(v),
+      `Expected value to be truthy`
+    );
   }
 
   toBeFalsy() {
-    return this.assertion.toBeFalsy();
+    return this.assertion.customAssertion(
+      (v) => !v,
+      `Expected value to be falsy`
+    );
   }
 }
\ No newline at end of file
diff --git a/ts/namespaces/date.ts b/ts/namespaces/date.ts
index 67cb009..a525070 100644
--- a/ts/namespaces/date.ts
+++ b/ts/namespaces/date.ts
@@ -7,14 +7,23 @@ export class DateMatchers {
   constructor(private assertion: Assertion<Date>) {}
 
   toBeDate() {
-    return this.assertion.toBeDate();
+    return this.assertion.customAssertion(
+      (v) => v instanceof Date,
+      `Expected value to be a Date instance`
+    );
   }
 
   toBeBeforeDate(date: Date) {
-    return this.assertion.toBeBeforeDate(date);
+    return this.assertion.customAssertion(
+      (v) => v instanceof Date && (v as Date).getTime() < date.getTime(),
+      `Expected date to be before ${date.toISOString()}`
+    );
   }
 
   toBeAfterDate(date: Date) {
-    return this.assertion.toBeAfterDate(date);
+    return this.assertion.customAssertion(
+      (v) => v instanceof Date && (v as Date).getTime() > date.getTime(),
+      `Expected date to be after ${date.toISOString()}`
+    );
   }
 }
\ No newline at end of file
diff --git a/ts/namespaces/function.ts b/ts/namespaces/function.ts
index e5931ff..5dd7b96 100644
--- a/ts/namespaces/function.ts
+++ b/ts/namespaces/function.ts
@@ -7,6 +7,23 @@ export class FunctionMatchers {
   constructor(private assertion: Assertion<Function>) {}
 
   toThrow(expectedError?: any) {
-    return this.assertion.toThrow(expectedError);
+    return this.assertion.customAssertion(
+      (value) => {
+        let threw = false;
+        try {
+          (value as Function)();
+        } catch (e: any) {
+          threw = true;
+          if (expectedError) {
+            if (typeof expectedError === 'function') {
+              return e instanceof expectedError;
+            }
+            return e === expectedError;
+          }
+        }
+        return threw;
+      },
+      `Expected function to throw${expectedError ? ` ${expectedError}` : ''}`
+    );
   }
 }
\ No newline at end of file
diff --git a/ts/namespaces/number.ts b/ts/namespaces/number.ts
index 219e1d4..378d3fb 100644
--- a/ts/namespaces/number.ts
+++ b/ts/namespaces/number.ts
@@ -7,26 +7,50 @@ export class NumberMatchers {
   constructor(private assertion: Assertion<number>) {}
 
   toBeGreaterThan(value: number) {
-    return this.assertion.toBeGreaterThan(value);
+    return this.assertion.customAssertion(
+      (v) => (v as number) > value,
+      `Expected number to be greater than ${value}`
+    );
   }
 
   toBeLessThan(value: number) {
-    return this.assertion.toBeLessThan(value);
+    return this.assertion.customAssertion(
+      (v) => (v as number) < value,
+      `Expected number to be less than ${value}`
+    );
   }
 
   toBeGreaterThanOrEqual(value: number) {
-    return this.assertion.toBeGreaterThanOrEqual(value);
+    return this.assertion.customAssertion(
+      (v) => (v as number) >= value,
+      `Expected number to be greater than or equal to ${value}`
+    );
   }
 
   toBeLessThanOrEqual(value: number) {
-    return this.assertion.toBeLessThanOrEqual(value);
+    return this.assertion.customAssertion(
+      (v) => (v as number) <= value,
+      `Expected number to be less than or equal to ${value}`
+    );
   }
 
   toBeCloseTo(value: number, precision?: number) {
-    return this.assertion.toBeCloseTo(value, precision);
+    return this.assertion.customAssertion(
+      (v) => {
+        const num = v as number;
+        const p = precision !== undefined ? precision : 2;
+        const diff = Math.abs(num - value);
+        const tolerance = 0.5 * Math.pow(10, -p);
+        return diff <= tolerance;
+      },
+      `Expected number to be close to ${value} within precision ${precision ?? 2}`
+    );
   }
   /** Equality check for numbers */
   toEqual(value: number) {
-    return this.assertion.toEqual(value);
+    return this.assertion.customAssertion(
+      (v) => (v as number) === value,
+      `Expected number to equal ${value}`
+    );
   }
 }
\ No newline at end of file
diff --git a/ts/namespaces/object.ts b/ts/namespaces/object.ts
index 341ace8..5bb2715 100644
--- a/ts/namespaces/object.ts
+++ b/ts/namespaces/object.ts
@@ -1,4 +1,5 @@
 import { Assertion } from '../smartexpect.classes.assertion.js';
+import * as plugins from '../plugins.js';
 
 /**
  * Namespace for object-specific matchers
@@ -7,33 +8,82 @@ export class ObjectMatchers<T extends object> {
   constructor(private assertion: Assertion<T>) {}
 
   toEqual(expected: any) {
-    return this.assertion.toEqual(expected);
+    return this.assertion.customAssertion(
+      (v) => plugins.fastDeepEqual(v, expected),
+      `Expected objects to be deeply equal to ${JSON.stringify(expected)}`
+    );
   }
 
   toMatchObject(expected: object) {
-    return this.assertion.toMatchObject(expected);
+    return this.assertion.customAssertion(
+      (v) => {
+        for (const key of Object.keys(expected)) {
+          if (!plugins.fastDeepEqual((v as any)[key], (expected as any)[key])) {
+            return false;
+          }
+        }
+        return true;
+      },
+      `Expected object to match properties ${JSON.stringify(expected)}`
+    );
   }
 
   toBeInstanceOf(constructor: any) {
-    return this.assertion.toBeInstanceOf(constructor);
+    return this.assertion.customAssertion(
+      (v) => (v as any) instanceof constructor,
+      `Expected object to be instance of ${constructor.name || constructor}`
+    );
   }
 
   toHaveProperty(property: string, value?: any) {
-    return this.assertion.toHaveProperty(property, value);
+    return this.assertion.customAssertion(
+      (v) => {
+        const obj = v as any;
+        if (!(property in obj)) {
+          return false;
+        }
+        if (arguments.length === 2) {
+          return plugins.fastDeepEqual(obj[property], value);
+        }
+        return true;
+      },
+      `Expected object to have property ${property}${value !== undefined ? ` with value ${JSON.stringify(value)}` : ''}`
+    );
   }
 
   toHaveDeepProperty(path: string[]) {
-    return this.assertion.toHaveDeepProperty(path);
+    return this.assertion.customAssertion(
+      (v) => {
+        let obj: any = v;
+        for (const key of path) {
+          if (obj == null || !(key in obj)) {
+            return false;
+          }
+          obj = obj[key];
+        }
+        return true;
+      },
+      `Expected object to have deep property path ${JSON.stringify(path)}`
+    );
   }
   toBeNull() {
-    return this.assertion.toBeNull();
+    return this.assertion.customAssertion(
+      (v) => v === null,
+      `Expected value to be null`
+    );
   }
 
   toBeUndefined() {
-    return this.assertion.toBeUndefined();
+    return this.assertion.customAssertion(
+      (v) => v === undefined,
+      `Expected value to be undefined`
+    );
   }
 
   toBeNullOrUndefined() {
-    return this.assertion.toBeNullOrUndefined();
+    return this.assertion.customAssertion(
+      (v) => v === null || v === undefined,
+      `Expected value to be null or undefined`
+    );
   }
 }
\ No newline at end of file
diff --git a/ts/namespaces/string.ts b/ts/namespaces/string.ts
index 174ece4..33387ff 100644
--- a/ts/namespaces/string.ts
+++ b/ts/namespaces/string.ts
@@ -7,26 +7,44 @@ export class StringMatchers {
   constructor(private assertion: Assertion<string>) {}
 
   toStartWith(prefix: string) {
-    return this.assertion.toStartWith(prefix);
+    return this.assertion.customAssertion(
+      (value) => (value as string).startsWith(prefix),
+      `Expected string to start with "${prefix}"`
+    );
   }
 
   toEndWith(suffix: string) {
-    return this.assertion.toEndWith(suffix);
+    return this.assertion.customAssertion(
+      (value) => (value as string).endsWith(suffix),
+      `Expected string to end with "${suffix}"`
+    );
   }
 
   toInclude(substring: string) {
-    return this.assertion.toInclude(substring);
+    return this.assertion.customAssertion(
+      (value) => (value as string).includes(substring),
+      `Expected string to include "${substring}"`
+    );
   }
 
   toMatch(regex: RegExp) {
-    return this.assertion.toMatch(regex);
+    return this.assertion.customAssertion(
+      (value) => regex.test(value as string),
+      `Expected string to match ${regex}`
+    );
   }
 
   toBeOneOf(values: string[]) {
-    return this.assertion.toBeOneOf(values);
+    return this.assertion.customAssertion(
+      (value) => (values as string[]).includes(value as string),
+      `Expected string to be one of ${JSON.stringify(values)}`
+    );
   }
   /** Length check for strings */
   toHaveLength(length: number) {
-    return this.assertion.toHaveLength(length);
+    return this.assertion.customAssertion(
+      (value) => (value as string).length === length,
+      `Expected string to have length ${length}`
+    );
   }
 }
\ No newline at end of file
diff --git a/ts/namespaces/type.ts b/ts/namespaces/type.ts
index db533b4..f7e3b09 100644
--- a/ts/namespaces/type.ts
+++ b/ts/namespaces/type.ts
@@ -7,22 +7,37 @@ export class TypeMatchers {
   constructor(private assertion: Assertion<any>) {}
 
   toBeTypeofString() {
-    return this.assertion.toBeTypeofString();
+    return this.assertion.customAssertion(
+      (v) => typeof v === 'string',
+      `Expected type to be 'string'`
+    );
   }
 
   toBeTypeofNumber() {
-    return this.assertion.toBeTypeofNumber();
+    return this.assertion.customAssertion(
+      (v) => typeof v === 'number',
+      `Expected type to be 'number'`
+    );
   }
 
   toBeTypeofBoolean() {
-    return this.assertion.toBeTypeofBoolean();
+    return this.assertion.customAssertion(
+      (v) => typeof v === 'boolean',
+      `Expected type to be 'boolean'`
+    );
   }
 
   toBeTypeOf(typeName: string) {
-    return this.assertion.toBeTypeOf(typeName);
+    return this.assertion.customAssertion(
+      (v) => typeof v === typeName,
+      `Expected type to be '${typeName}'`
+    );
   }
 
   toBeDefined() {
-    return this.assertion.toBeDefined();
+    return this.assertion.customAssertion(
+      (v) => v !== undefined,
+      `Expected value to be defined`
+    );
   }
 }
\ No newline at end of file
diff --git a/ts/smartexpect.classes.assertion.ts b/ts/smartexpect.classes.assertion.ts
index 89c05e1..3bc639e 100644
--- a/ts/smartexpect.classes.assertion.ts
+++ b/ts/smartexpect.classes.assertion.ts
@@ -288,6 +288,49 @@ export class Assertion<T = unknown> {
     console.log(`Path: ${this.formatDrillDown() || '(root)'}`);
     return this;
   }
+  // Direct (flat) matcher aliases
+  public toEqual(expected: any) {
+    return this.customAssertion(
+      (v) => plugins.fastDeepEqual(v, expected),
+      `Expected value to equal ${JSON.stringify(expected)}`
+    );
+  }
+  public toBeTrue() { return this.boolean.toBeTrue(); }
+  public toBeFalse() { return this.boolean.toBeFalse(); }
+  public toBeTruthy() { return this.boolean.toBeTruthy(); }
+  public toBeFalsy() { return this.boolean.toBeFalsy(); }
+  public toThrow(expectedError?: any) { return this.function.toThrow(expectedError); }
+  public toBeGreaterThan(value: number) { return this.number.toBeGreaterThan(value); }
+  public toBeLessThan(value: number) { return this.number.toBeLessThan(value); }
+  public toBeGreaterThanOrEqual(value: number) { return this.number.toBeGreaterThanOrEqual(value); }
+  public toBeLessThanOrEqual(value: number) { return this.number.toBeLessThanOrEqual(value); }
+  public toBeCloseTo(value: number, precision?: number) { return this.number.toBeCloseTo(value, precision); }
+  public toBeArray() { return this.array.toBeArray(); }
+  public toContain(item: any) { return this.array.toContain(item); }
+  public toContainEqual(item: any) { return this.array.toContainEqual(item); }
+  public toContainAll(items: any[]) { return this.array.toContainAll(items); }
+  public toExclude(item: any) { return this.array.toExclude(item); }
+  public toBeEmptyArray() { return this.array.toBeEmptyArray(); }
+  public toStartWith(prefix: string) { return this.string.toStartWith(prefix); }
+  public toEndWith(suffix: string) { return this.string.toEndWith(suffix); }
+  public toInclude(substring: string) { return this.string.toInclude(substring); }
+  public toMatch(regex: RegExp) { return this.string.toMatch(regex); }
+  public toBeOneOf(values: any[]) { return this.string.toBeOneOf(values as string[]); }
+  public toHaveProperty(property: string, value?: any) { return this.object.toHaveProperty(property, value); }
+  public toMatchObject(expected: object) { return this.object.toMatchObject(expected); }
+  public toBeInstanceOf(constructor: any) { return this.object.toBeInstanceOf(constructor); }
+  public toHaveDeepProperty(path: string[]) { return this.object.toHaveDeepProperty(path); }
+  public toBeNull() { return this.object.toBeNull(); }
+  public toBeUndefined() { return this.object.toBeUndefined(); }
+  public toBeNullOrUndefined() { return this.object.toBeNullOrUndefined(); }
+  public toBeDate() { return this.date.toBeDate(); }
+  public toBeBeforeDate(date: Date) { return this.date.toBeBeforeDate(date); }
+  public toBeAfterDate(date: Date) { return this.date.toBeAfterDate(date); }
+  public toBeTypeofString() { return this.type.toBeTypeofString(); }
+  public toBeTypeofNumber() { return this.type.toBeTypeofNumber(); }
+  public toBeTypeofBoolean() { return this.type.toBeTypeofBoolean(); }
+  public toBeTypeOf(typeName: string) { return this.type.toBeTypeOf(typeName); }
+  public toBeDefined() { return this.type.toBeDefined(); }
   // Namespaced matcher accessors
   /** String-specific matchers */
   public get string() {