diff --git a/data/nodes.db b/data/nodes.db
index 1142059..371c716 100644
Binary files a/data/nodes.db and b/data/nodes.db differ
diff --git a/tests/utils/assertions.ts b/tests/utils/assertions.ts
index 2c13788..be89de0 100644
--- a/tests/utils/assertions.ts
+++ b/tests/utils/assertions.ts
@@ -1,5 +1,8 @@
 import { expect } from 'vitest';
-import { INodeDefinition, IWorkflow, INode } from '@/types/n8n-api';
+import { WorkflowNode, Workflow } from '@/types/n8n-api';
+
+// Use any type for INodeDefinition since it's from n8n-workflow package
+type INodeDefinition = any;
 
 /**
  * Custom assertions for n8n-mcp tests
@@ -8,7 +11,7 @@ import { INodeDefinition, IWorkflow, INode } from '@/types/n8n-api';
 /**
  * Assert that a value is a valid node definition
  */
-export function expectValidNodeDefinition(node: any): asserts node is INodeDefinition {
+export function expectValidNodeDefinition(node: any) {
   expect(node).toBeDefined();
   expect(node).toHaveProperty('name');
   expect(node).toHaveProperty('displayName');
@@ -29,7 +32,7 @@ export function expectValidNodeDefinition(node: any): asserts node is INodeDefin
 /**
  * Assert that a value is a valid workflow
  */
-export function expectValidWorkflow(workflow: any): asserts workflow is IWorkflow {
+export function expectValidWorkflow(workflow: any): asserts workflow is Workflow {
   expect(workflow).toBeDefined();
   expect(workflow).toHaveProperty('nodes');
   expect(workflow).toHaveProperty('connections');
@@ -42,7 +45,7 @@ export function expectValidWorkflow(workflow: any): asserts workflow is IWorkflo
   });
   
   // Check connections reference valid nodes
-  const nodeIds = new Set(workflow.nodes.map((n: INode) => n.id));
+  const nodeIds = new Set(workflow.nodes.map((n: WorkflowNode) => n.id));
   Object.keys(workflow.connections).forEach(sourceId => {
     expect(nodeIds.has(sourceId)).toBe(true);
     
@@ -60,7 +63,7 @@ export function expectValidWorkflow(workflow: any): asserts workflow is IWorkflo
 /**
  * Assert that a value is a valid workflow node
  */
-export function expectValidWorkflowNode(node: any): asserts node is INode {
+export function expectValidWorkflowNode(node: any): asserts node is WorkflowNode {
   expect(node).toBeDefined();
   expect(node).toHaveProperty('id');
   expect(node).toHaveProperty('name');
diff --git a/tests/utils/data-generators.ts b/tests/utils/data-generators.ts
index b3571f7..4f9acc2 100644
--- a/tests/utils/data-generators.ts
+++ b/tests/utils/data-generators.ts
@@ -1,5 +1,8 @@
 import { faker } from '@faker-js/faker';
-import { INodeDefinition, INode, IWorkflow } from '@/types/n8n-api';
+import { WorkflowNode, Workflow } from '@/types/n8n-api';
+
+// Use any type for INodeDefinition since it's from n8n-workflow package
+type INodeDefinition = any;
 
 /**
  * Data generators for creating realistic test data
@@ -117,7 +120,7 @@ function generateDisplayOptions(): any {
 /**
  * Generate a complete node definition
  */
-export function generateNodeDefinition(overrides?: Partial<INodeDefinition>): INodeDefinition {
+export function generateNodeDefinition(overrides?: Partial<INodeDefinition>): any {
   const nodeCategory = faker.helpers.arrayElement([
     'Core Nodes', 'Communication', 'Data Transformation',
     'Development', 'Files', 'Productivity', 'Analytics'
@@ -155,8 +158,8 @@ export function generateNodeDefinition(overrides?: Partial<INodeDefinition>): IN
 /**
  * Generate workflow nodes
  */
-export function generateWorkflowNodes(count = 3): INode[] {
-  const nodes: INode[] = [];
+export function generateWorkflowNodes(count = 3): WorkflowNode[] {
+  const nodes: WorkflowNode[] = [];
   
   for (let i = 0; i < count; i++) {
     nodes.push({
@@ -221,7 +224,7 @@ function generateNodeParameters(): Record<string, any> {
 /**
  * Generate workflow connections
  */
-export function generateConnections(nodes: INode[]): Record<string, any> {
+export function generateConnections(nodes: WorkflowNode[]): Record<string, any> {
   const connections: Record<string, any> = {};
   
   // Connect nodes sequentially
@@ -263,7 +266,7 @@ export function generateConnections(nodes: INode[]): Record<string, any> {
 /**
  * Generate a complete workflow
  */
-export function generateWorkflow(nodeCount = 3): IWorkflow {
+export function generateWorkflow(nodeCount = 3): Workflow {
   const nodes = generateWorkflowNodes(nodeCount);
   
   return {
@@ -281,11 +284,10 @@ export function generateWorkflow(nodeCount = 3): IWorkflow {
     settings: {
       executionOrder: 'v1',
       saveManualExecutions: true,
-      callerPolicy: 'workflowsFromSameOwner',
       timezone: faker.location.timeZone()
     },
     staticData: {},
-    tags: generateTags(),
+    tags: generateTags().map(t => t.name),
     createdAt: faker.date.past().toISOString(),
     updatedAt: faker.date.recent().toISOString()
   };
diff --git a/tests/utils/test-helpers.ts b/tests/utils/test-helpers.ts
index ff61b5b..bcbe011 100644
--- a/tests/utils/test-helpers.ts
+++ b/tests/utils/test-helpers.ts
@@ -1,5 +1,8 @@
 import { vi } from 'vitest';
-import { INodeDefinition, INode, IWorkflow } from '@/types/n8n-api';
+import { WorkflowNode, Workflow } from '@/types/n8n-api';
+
+// Use any type for INodeDefinition since it's from n8n-workflow package
+type INodeDefinition = any;
 
 /**
  * Common test utilities and helpers
@@ -48,7 +51,7 @@ export function createMockNodeDefinition(overrides?: Partial<INodeDefinition>):
 /**
  * Create a mock workflow node
  */
-export function createMockNode(overrides?: Partial<INode>): INode {
+export function createMockNode(overrides?: Partial<WorkflowNode>): WorkflowNode {
   return {
     id: 'mock-node-id',
     name: 'Mock Node',
@@ -63,7 +66,7 @@ export function createMockNode(overrides?: Partial<INode>): INode {
 /**
  * Create a mock workflow
  */
-export function createMockWorkflow(overrides?: Partial<IWorkflow>): IWorkflow {
+export function createMockWorkflow(overrides?: Partial<Workflow>): Workflow {
   return {
     id: 'mock-workflow-id',
     name: 'Mock Workflow',