diff --git a/README.md b/README.md
index c24722a..801838b 100644
--- a/README.md
+++ b/README.md
@@ -153,6 +153,43 @@ const intent = await llm.query('analyze the data');
 // Returns: { confidence: 0.9, action: 'analysis' }
 ```
 
+## Nested Manifolds
+
+### NestedManifoldRegion
+
+A `NestedManifoldRegion` allows embedding a `WorkflowFunctionManifold` inside a region. This enables creating hierarchical workflows where regions themselves contain sub-workflows.
+
+```javascript
+import {
+  WorkflowFunctionManifold,
+  NestedManifoldRegion,
+  ManifoldRegion,
+  WorkflowOperator,
+  DummyLlmService,
+} from 'workflow-function-manifold';
+
+// Sub-workflow
+const nestedLlm = new DummyLlmService();
+const nestedManifold = new WorkflowFunctionManifold(nestedLlm);
+
+const nestedOperator = new WorkflowOperator('nestedOperation', async state => {
+  return { ...state, nested: true };
+});
+
+const nestedRegion = new ManifoldRegion('nestedRegion', [nestedOperator]);
+nestedManifold.addRegion(nestedRegion);
+
+// Main workflow
+const mainLlm = new DummyLlmService();
+const mainManifold = new WorkflowFunctionManifold(mainLlm);
+
+const nestedManifoldRegion = new NestedManifoldRegion('nestedManifoldRegion', nestedManifold);
+mainManifold.addRegion(nestedManifoldRegion);
+
+await mainManifold.navigate('perform nested operation');
+await mainManifold.executeWorkflow('perform nested operation');
+```
+
 ## Complete Example
 
 Here's a full example demonstrating a three-stage workflow:
@@ -241,6 +278,10 @@ console.log(manifold.state); // Final state after all operations
 
 - `async execute(state: any): Promise<any>`
 
+### NestedManifoldRegion
+- Extends `ManifoldRegion` and embeds a `WorkflowFunctionManifold`.
+
+
 ## State Management
 
 The workflow maintains state across operations. Each operator can access and
diff --git a/bin.js b/bin.js
index 5258611..cdcc9f6 100755
--- a/bin.js
+++ b/bin.js
@@ -5,59 +5,95 @@ import {
   ManifoldRegion,
   WorkflowFunctionManifold,
   WorkflowOperator,
+  NestedManifoldRegion,
 } from './lib.js';
 
-async function demonstrateManifold() {
-  // Initialize services and manifold
-  const llm = new DummyLlmService();
-  const manifold = new WorkflowFunctionManifold(llm);
+async function demonstrateNestedManifold() {
+  console.log('\n🚀 Starting Nested Manifold Demonstration\n');
 
-  // Create operators
-  const dataAnalysisOp = new WorkflowOperator('analysis', async state => {
-    console.log('Performing data analysis...');
+  console.log('📦 Creating Secondary Manifold...');
+  const nestedLlm = new DummyLlmService();
+  const nestedManifold = new WorkflowFunctionManifold(nestedLlm);
+
+  const validateOp = new WorkflowOperator('validation', async state => {
+    console.log('  ✓ Validating data structure');
+    return { ...state, validated: true };
+  });
+
+  const cleanOp = new WorkflowOperator('cleaning', async state => {
+    console.log('  ✓ Cleaning data');
+    return { ...state, cleaned: true };
+  });
+
+  const validateRegion = new ManifoldRegion('validation', [validateOp]);
+  const cleanRegion = new ManifoldRegion('cleaning', [cleanOp]);
+
+  // Set up nested manifold regions
+  validateRegion.connectTo(cleanRegion);
+  nestedManifold.addRegion(validateRegion);
+  nestedManifold.addRegion(cleanRegion);
+
+  console.log('📦 Creating Primary Manifold...');
+  const mainLlm = new DummyLlmService();
+  const mainManifold = new WorkflowFunctionManifold(mainLlm);
+
+  const analysisOp = new WorkflowOperator('analysis', async state => {
+    console.log('  ✓ Performing data analysis');
     return { ...state, analyzed: true };
   });
 
-  const dataProcessingOp = new WorkflowOperator('processing', async state => {
-    console.log('Processing data...');
-    return { ...state, processed: true };
-  });
-
-  const dataTransformOp = new WorkflowOperator('transformation', async state => {
-    console.log('Transforming data...');
+  const transformOp = new WorkflowOperator('transformation', async state => {
+    console.log('  ✓ Transforming results');
     return { ...state, transformed: true };
   });
 
-  // Create regions
-  const analysisRegion = new ManifoldRegion('analysis', [dataAnalysisOp]);
-  const processingRegion = new ManifoldRegion('processing', [dataProcessingOp]);
-  const transformationRegion = new ManifoldRegion('transformation', [dataTransformOp]);
+  // Set up main manifold regions
+  const nestedPreprocessRegion = new NestedManifoldRegion('preprocessing', nestedManifold);
+  const analysisRegion = new ManifoldRegion('analysis', [analysisOp]);
+  const transformRegion = new ManifoldRegion('transformation', [transformOp]);
 
-  // Connect regions
-  analysisRegion.connectTo(processingRegion);
-  processingRegion.connectTo(transformationRegion);
+  nestedPreprocessRegion.connectTo(analysisRegion);
+  analysisRegion.connectTo(transformRegion);
 
-  // Add regions to manifold
-  manifold.addRegion(analysisRegion);
-  manifold.addRegion(processingRegion);
-  manifold.addRegion(transformationRegion);
+  mainManifold.addRegion(nestedPreprocessRegion);
+  mainManifold.addRegion(analysisRegion);
+  mainManifold.addRegion(transformRegion);
 
-  // Demonstrate workflow execution
-  console.log('Starting workflow demonstration...');
+  console.log('\n🔄 Executing Workflow...\n');
 
-  const prompts = ['analyze the data', 'process the results', 'transform the output'];
+  const prompts = [
+    { text: 'validate the input', description: 'Nested: Data Validation' },
+    { text: 'clean the data', description: 'Nested: Data Cleaning' },
+    { text: 'analyze the results', description: 'Main: Data Analysis' },
+    { text: 'transform the output', description: 'Main: Data Transformation' },
+  ];
 
-  for (const prompt of prompts) {
-    console.log(`\nExecuting prompt: "${prompt}"`);
-    await manifold.navigate(prompt);
-    const executed = await manifold.executeWorkflow(prompt);
-    console.log('Current state:', manifold.state);
-    console.log(`Current region: ${manifold.currentRegion.name}`);
-    console.log(`Operation executed: ${executed}`);
+  for (const { text, description } of prompts) {
+    console.log(`📍 Step: ${description}\n   Prompt: "${text}"`);
+
+    try {
+      // First try to navigate
+      const navigated = await mainManifold.navigate(text);
+      if (navigated) {
+        console.log('   ↪ Navigation successful');
+      }
+
+      // Then execute the workflow
+      const executed = await mainManifold.executeWorkflow(text);
+      if (executed) {
+        console.log('   ✅ Execution complete\n');
+      } else {
+        console.log('   ❌ Execution failed - No matching operator found\n');
+      }
+    } catch (error) {
+      console.error(`   ❌ Error: ${error.message}\n`);
+    }
   }
+
+  console.log('🎉 Workflow Demonstration Complete!\n');
 }
 
-// Run the demonstration
-demonstrateManifold().catch(console.error);
-
-export {};
+demonstrateNestedManifold().catch(error => {
+  console.error('❌ Fatal Error:', error);
+  process.exit(1);
+});
\ No newline at end of file
diff --git a/lib.js b/lib.js
index 6032e8e..7b590a4 100644
--- a/lib.js
+++ b/lib.js
@@ -1,105 +1,75 @@
-// Simulated LLM Service
-/**
- * Simulates a Large Language Model (LLM) service for intent detection.
- */
 export class DummyLlmService {
-  /**
-   * Queries the simulated LLM with a prompt.
-   * @param {string} prompt - The input prompt to query the LLM.
-   * @returns {Promise<{confidence: number, action: string}>} - The detected intent with confidence and action.
-   */
   async query(prompt) {
     const intents = {
       analyze: { confidence: 0.9, action: 'analysis' },
       process: { confidence: 0.8, action: 'processing' },
       transform: { confidence: 0.7, action: 'transformation' },
+      validate: { confidence: 0.85, action: 'validation' },
+      clean: { confidence: 0.85, action: 'cleaning' },
     };
-
     const matchedIntent = Object.entries(intents).find(([key]) =>
-      prompt.toLowerCase().includes(key),
+        prompt.toLowerCase().includes(key)
     );
-
     return matchedIntent ? matchedIntent[1] : { confidence: 0.1, action: 'unknown' };
   }
 }
 
-// Interface for workflow operators
-/**
- * Represents a workflow operator responsible for performing a specific operation.
- */
 export class WorkflowOperator {
-  /**
-   * Creates an instance of WorkflowOperator.
-   * @param {string} name - The name of the operator.
-   * @param {function(object): Promise<object>} operation - The operation function executed by the operator.
-   */
   constructor(name, operation) {
     this.name = name;
     this.operation = operation;
   }
 
-  /**
-   * Executes the operator's operation with the given state.
-   * @param {object} state - The current state to be processed.
-   * @returns {Promise<object>} - The updated state after the operation.
-   */
   async execute(state) {
     return await this.operation(state);
   }
 }
 
-// Interface for manifold regions
-/**
- * Represents a region within the manifold, containing workflow operators.
- */
 export class ManifoldRegion {
-  /**
-   * Creates an instance of ManifoldRegion.
-   * @param {string} name - The name of the region.
-   * @param {WorkflowOperator[]} [operators=[]] - The operators available in this region.
-   */
   constructor(name, operators = []) {
     this.name = name;
     this.operators = operators;
     this.adjacentRegions = new Set();
   }
 
-  /**
-   * Adds an operator to the region.
-   * @param {WorkflowOperator} operator - The operator to be added.
-   */
   addOperator(operator) {
     this.operators.push(operator);
   }
 
-  /**
-   * Establishes a connection to another region.
-   * @param {ManifoldRegion} region - The region to connect to.
-   */
   connectTo(region) {
     this.adjacentRegions.add(region);
     region.adjacentRegions.add(this);
   }
 
-  /**
-   * Retrieves valid operators for the given state.
-   * @param {object} _state - The current state.
-   * @returns {Promise<WorkflowOperator[]>} - The list of valid operators.
-   */
   async getValidOperators(_state) {
     return this.operators;
   }
 }
 
-// Main manifold implementation
-/**
- * Represents the workflow function manifold managing regions and state transitions.
- */
+export class NestedManifoldRegion extends ManifoldRegion {
+  constructor(name, nestedManifold) {
+    super(name);
+    this.nestedManifold = nestedManifold;
+  }
+
+  async getValidOperators(state) {
+    if (!this.nestedManifold.currentRegion) {
+      return [];
+    }
+    return await this.nestedManifold.currentRegion.getValidOperators(state);
+  }
+
+  async navigate(prompt) {
+    return await this.nestedManifold.navigate(prompt);
+  }
+
+  async executeWorkflow(prompt) {
+    const result = await this.nestedManifold.executeWorkflow(prompt);
+    return result;
+  }
+}
+
 export class WorkflowFunctionManifold {
-  /**
-   * Creates an instance of WorkflowFunctionManifold.
-   * @param {DummyLlmService} llmService - The LLM service used for intent detection.
-   */
   constructor(llmService) {
     this.llmService = llmService;
     this.regions = new Map();
@@ -107,10 +77,6 @@ export class WorkflowFunctionManifold {
     this.state = {};
   }
 
-  /**
-   * Adds a region to the manifold.
-   * @param {ManifoldRegion} region - The region to be added.
-   */
   addRegion(region) {
     this.regions.set(region.name, region);
     if (!this.currentRegion) {
@@ -118,52 +84,61 @@ export class WorkflowFunctionManifold {
     }
   }
 
-  /**
-   * Navigates to the next region based on the provided prompt.
-   * @param {string} prompt - The input prompt for intent matching.
-   * @returns {Promise<boolean>} - Whether navigation was successful.
-   */
   async navigate(prompt) {
     try {
-      const intent = await this.llmService.query(prompt);
+      // If current region is nested, try to navigate within it first
+      if (this.currentRegion instanceof NestedManifoldRegion) {
+        const nestedNavigated = await this.currentRegion.navigate(prompt);
+        if (nestedNavigated) {
+          return true;
+        }
+      }
 
+      const intent = await this.llmService.query(prompt);
+      if (intent.confidence <= 0.5) {
+        return false;
+      }
+
+      // Try to find matching region
       const nextRegion = Array.from(this.currentRegion.adjacentRegions).find(region =>
-        region.name.toLowerCase().includes(intent.action),
+          region.name.toLowerCase().includes(intent.action)
       );
 
-      if (nextRegion && intent.confidence > 0.5) {
+      if (nextRegion) {
         this.currentRegion = nextRegion;
         return true;
       }
-      console.warn(`No valid region found for prompt: "${prompt}"`);
+
       return false;
     } catch (error) {
-      console.error(`Error during navigation for prompt "${prompt}":`, error);
+      console.error('Navigation error:', error);
       return false;
     }
   }
 
-  /**
-   * Executes the workflow based on the current region and provided prompt.
-   * @param {string} prompt - The input prompt for intent matching.
-   * @returns {Promise<boolean>} - Whether the workflow execution was successful.
-   */
   async executeWorkflow(prompt) {
     try {
-      const operators = await this.currentRegion.getValidOperators(this.state);
+      if (this.currentRegion instanceof NestedManifoldRegion) {
+        const nestedResult = await this.currentRegion.executeWorkflow(prompt);
+        return nestedResult;
+      }
+
       const intent = await this.llmService.query(prompt);
+      const operators = await this.currentRegion.getValidOperators(this.state);
 
-      const matchedOperator = operators.find(op => op.name.toLowerCase().includes(intent.action));
+      const matchedOperator = operators.find(op =>
+          op.name.toLowerCase().includes(intent.action)
+      );
 
-      if (matchedOperator) {
+      if (matchedOperator && intent.confidence > 0.5) {
         this.state = await matchedOperator.execute(this.state);
         return true;
       }
-      console.warn(`No matching operator found for intent: ${intent.action}`);
+
       return false;
     } catch (error) {
-      console.error(`Error during workflow execution for prompt "${prompt}":`, error);
+      console.error('Execution error:', error);
       return false;
     }
   }
-}
+}
\ No newline at end of file
diff --git a/package.json b/package.json
index 0598e6d..b135aed 100644
--- a/package.json
+++ b/package.json
@@ -1,6 +1,7 @@
 {
   "name": "workflow-function-manifold",
   "version": "1.0.2",
+  "type": "module",
   "description": "for building dynamic, LLM-driven workflows using a region-based execution model",
   "main": "index.js",
   "bin": {