refactor: Migrate NodeConnectionType to const object type (no-changelog) (#14078)

Co-authored-by: कारतोफ्फेलस्क्रिप्ट™ <aditya@netroy.in>

packages/@n8n/nodes-langchain/nodes/agents/Agent/Agent.node.ts

@@ -1,4 +1,4 @@
-import { NodeConnectionType, NodeOperationError } from 'n8n-workflow';
+import { NodeConnectionTypes, NodeOperationError } from 'n8n-workflow';
 import type {
 	INodeInputConfiguration,
 	INodeInputFilter,
@@ -7,6 +7,7 @@ import type {
 	INodeType,
 	INodeTypeDescription,
 	INodeProperties,
+	NodeConnectionType,
 } from 'n8n-workflow';
 
 import { promptTypeOptions, textFromPreviousNode, textInput } from '@utils/descriptions';
@@ -85,7 +86,7 @@ function getInputs(
 	if (agent === 'conversationalAgent') {
 		specialInputs = [
 			{
-				type: NodeConnectionType.AiLanguageModel,
+				type: 'ai_languageModel',
 				filter: {
 					nodes: [
 						'@n8n/n8n-nodes-langchain.lmChatAnthropic',
@@ -103,19 +104,19 @@ function getInputs(
 				},
 			},
 			{
-				type: NodeConnectionType.AiMemory,
+				type: 'ai_memory',
 			},
 			{
-				type: NodeConnectionType.AiTool,
+				type: 'ai_tool',
 			},
 			{
-				type: NodeConnectionType.AiOutputParser,
+				type: 'ai_outputParser',
 			},
 		];
 	} else if (agent === 'toolsAgent') {
 		specialInputs = [
 			{
-				type: NodeConnectionType.AiLanguageModel,
+				type: 'ai_languageModel',
 				filter: {
 					nodes: [
 						'@n8n/n8n-nodes-langchain.lmChatAnthropic',
@@ -133,20 +134,20 @@ function getInputs(
 				},
 			},
 			{
-				type: NodeConnectionType.AiMemory,
+				type: 'ai_memory',
 			},
 			{
-				type: NodeConnectionType.AiTool,
+				type: 'ai_tool',
 				required: true,
 			},
 			{
-				type: NodeConnectionType.AiOutputParser,
+				type: 'ai_outputParser',
 			},
 		];
 	} else if (agent === 'openAiFunctionsAgent') {
 		specialInputs = [
 			{
-				type: NodeConnectionType.AiLanguageModel,
+				type: 'ai_languageModel',
 				filter: {
 					nodes: [
 						'@n8n/n8n-nodes-langchain.lmChatOpenAi',
@@ -155,57 +156,55 @@ function getInputs(
 				},
 			},
 			{
-				type: NodeConnectionType.AiMemory,
+				type: 'ai_memory',
 			},
 			{
-				type: NodeConnectionType.AiTool,
+				type: 'ai_tool',
 				required: true,
 			},
 			{
-				type: NodeConnectionType.AiOutputParser,
+				type: 'ai_outputParser',
 			},
 		];
 	} else if (agent === 'reActAgent') {
 		specialInputs = [
 			{
-				type: NodeConnectionType.AiLanguageModel,
+				type: 'ai_languageModel',
 			},
 			{
-				type: NodeConnectionType.AiTool,
+				type: 'ai_tool',
 			},
 			{
-				type: NodeConnectionType.AiOutputParser,
+				type: 'ai_outputParser',
 			},
 		];
 	} else if (agent === 'sqlAgent') {
 		specialInputs = [
 			{
-				type: NodeConnectionType.AiLanguageModel,
+				type: 'ai_languageModel',
 			},
 			{
-				type: NodeConnectionType.AiMemory,
+				type: 'ai_memory',
 			},
 		];
 	} else if (agent === 'planAndExecuteAgent') {
 		specialInputs = [
 			{
-				type: NodeConnectionType.AiLanguageModel,
+				type: 'ai_languageModel',
 			},
 			{
-				type: NodeConnectionType.AiTool,
+				type: 'ai_tool',
 			},
 			{
-				type: NodeConnectionType.AiOutputParser,
+				type: 'ai_outputParser',
 			},
 		];
 	}
 
 	if (hasOutputParser === false) {
-		specialInputs = specialInputs.filter(
-			(input) => input.type !== NodeConnectionType.AiOutputParser,
-		);
+		specialInputs = specialInputs.filter((input) => input.type !== 'ai_outputParser');
 	}
-	return [NodeConnectionType.Main, ...getInputData(specialInputs)];
+	return ['main', ...getInputData(specialInputs)];
 }
 
 const agentTypeProperty: INodeProperties = {
@@ -290,7 +289,7 @@ export class Agent implements INodeType {
 				return getInputs(agent, hasOutputParser)
 			})($parameter.agent, $parameter.hasOutputParser === undefined || $parameter.hasOutputParser === true)
 		}}`,
-		outputs: [NodeConnectionType.Main],
+		outputs: [NodeConnectionTypes.Main],
 		credentials: [
 			{
 				// eslint-disable-next-line n8n-nodes-base/node-class-description-credentials-name-unsuffixed
@@ -430,7 +429,7 @@ export class Agent implements INodeType {
 				},
 			},
 			{
-				displayName: `Connect an <a data-action='openSelectiveNodeCreator' data-action-parameter-connectiontype='${NodeConnectionType.AiOutputParser}'>output parser</a> on the canvas to specify the output format you require`,
+				displayName: `Connect an <a data-action='openSelectiveNodeCreator' data-action-parameter-connectiontype='${NodeConnectionTypes.AiOutputParser}'>output parser</a> on the canvas to specify the output format you require`,
 				name: 'notice',
 				type: 'notice',
 				default: '',

packages/@n8n/nodes-langchain/nodes/agents/Agent/agents/ConversationalAgent/execute.ts

@@ -2,7 +2,7 @@ import type { BaseChatMemory } from '@langchain/community/memory/chat_memory';
 import { PromptTemplate } from '@langchain/core/prompts';
 import { initializeAgentExecutorWithOptions } from 'langchain/agents';
 import type { IExecuteFunctions, INodeExecutionData } from 'n8n-workflow';
-import { NodeConnectionType, NodeOperationError } from 'n8n-workflow';
+import { NodeConnectionTypes, NodeOperationError } from 'n8n-workflow';
 
 import { isChatInstance, getPromptInputByType, getConnectedTools } from '@utils/helpers';
 import { getOptionalOutputParser } from '@utils/output_parsers/N8nOutputParser';
@@ -16,13 +16,13 @@ export async function conversationalAgentExecute(
 	nodeVersion: number,
 ): Promise<INodeExecutionData[][]> {
 	this.logger.debug('Executing Conversational Agent');
-	const model = await this.getInputConnectionData(NodeConnectionType.AiLanguageModel, 0);
+	const model = await this.getInputConnectionData(NodeConnectionTypes.AiLanguageModel, 0);
 
 	if (!isChatInstance(model)) {
 		throw new NodeOperationError(this.getNode(), 'Conversational Agent requires Chat Model');
 	}
 
-	const memory = (await this.getInputConnectionData(NodeConnectionType.AiMemory, 0)) as
+	const memory = (await this.getInputConnectionData(NodeConnectionTypes.AiMemory, 0)) as
 		| BaseChatMemory
 		| undefined;
 

packages/@n8n/nodes-langchain/nodes/agents/Agent/agents/OpenAiFunctionsAgent/execute.ts

@@ -6,7 +6,7 @@ import { BufferMemory, type BaseChatMemory } from 'langchain/memory';
 import {
 	type IExecuteFunctions,
 	type INodeExecutionData,
-	NodeConnectionType,
+	NodeConnectionTypes,
 	NodeOperationError,
 } from 'n8n-workflow';
 
@@ -22,7 +22,7 @@ export async function openAiFunctionsAgentExecute(
 ): Promise<INodeExecutionData[][]> {
 	this.logger.debug('Executing OpenAi Functions Agent');
 	const model = (await this.getInputConnectionData(
-		NodeConnectionType.AiLanguageModel,
+		NodeConnectionTypes.AiLanguageModel,
 		0,
 	)) as ChatOpenAI;
 
@@ -32,7 +32,7 @@ export async function openAiFunctionsAgentExecute(
 			'OpenAI Functions Agent requires OpenAI Chat Model',
 		);
 	}
-	const memory = (await this.getInputConnectionData(NodeConnectionType.AiMemory, 0)) as
+	const memory = (await this.getInputConnectionData(NodeConnectionTypes.AiMemory, 0)) as
 		| BaseChatMemory
 		| undefined;
 	const tools = await getConnectedTools(this, nodeVersion >= 1.5, false);

packages/@n8n/nodes-langchain/nodes/agents/Agent/agents/PlanAndExecuteAgent/execute.ts

@@ -4,7 +4,7 @@ import { PlanAndExecuteAgentExecutor } from 'langchain/experimental/plan_and_exe
 import {
 	type IExecuteFunctions,
 	type INodeExecutionData,
-	NodeConnectionType,
+	NodeConnectionTypes,
 	NodeOperationError,
 } from 'n8n-workflow';
 
@@ -21,7 +21,7 @@ export async function planAndExecuteAgentExecute(
 ): Promise<INodeExecutionData[][]> {
 	this.logger.debug('Executing PlanAndExecute Agent');
 	const model = (await this.getInputConnectionData(
-		NodeConnectionType.AiLanguageModel,
+		NodeConnectionTypes.AiLanguageModel,
 		0,
 	)) as BaseChatModel;
 

packages/@n8n/nodes-langchain/nodes/agents/Agent/agents/ReActAgent/execute.ts

@@ -5,7 +5,7 @@ import { AgentExecutor, ChatAgent, ZeroShotAgent } from 'langchain/agents';
 import {
 	type IExecuteFunctions,
 	type INodeExecutionData,
-	NodeConnectionType,
+	NodeConnectionTypes,
 	NodeOperationError,
 } from 'n8n-workflow';
 
@@ -22,7 +22,7 @@ export async function reActAgentAgentExecute(
 ): Promise<INodeExecutionData[][]> {
 	this.logger.debug('Executing ReAct Agent');
 
-	const model = (await this.getInputConnectionData(NodeConnectionType.AiLanguageModel, 0)) as
+	const model = (await this.getInputConnectionData(NodeConnectionTypes.AiLanguageModel, 0)) as
 		| BaseLanguageModel
 		| BaseChatModel;
 

packages/@n8n/nodes-langchain/nodes/agents/Agent/agents/SqlAgent/execute.ts

@@ -7,7 +7,7 @@ import { SqlDatabase } from 'langchain/sql_db';
 import {
 	type IExecuteFunctions,
 	type INodeExecutionData,
-	NodeConnectionType,
+	NodeConnectionTypes,
 	NodeOperationError,
 	type IDataObject,
 } from 'n8n-workflow';
@@ -32,7 +32,7 @@ export async function sqlAgentAgentExecute(
 	this.logger.debug('Executing SQL Agent');
 
 	const model = (await this.getInputConnectionData(
-		NodeConnectionType.AiLanguageModel,
+		NodeConnectionTypes.AiLanguageModel,
 		0,
 	)) as BaseLanguageModel;
 	const items = this.getInputData();
@@ -113,7 +113,7 @@ export async function sqlAgentAgentExecute(
 			const toolkit = new SqlToolkit(dbInstance, model);
 			const agentExecutor = createSqlAgent(model, toolkit, agentOptions);
 
-			const memory = (await this.getInputConnectionData(NodeConnectionType.AiMemory, 0)) as
+			const memory = (await this.getInputConnectionData(NodeConnectionTypes.AiMemory, 0)) as
 				| BaseChatMemory
 				| undefined;
 

packages/@n8n/nodes-langchain/nodes/agents/Agent/agents/ToolsAgent/execute.ts

@@ -11,7 +11,7 @@ import type { AgentAction, AgentFinish } from 'langchain/agents';
 import { AgentExecutor, createToolCallingAgent } from 'langchain/agents';
 import type { ToolsAgentAction } from 'langchain/dist/agents/tool_calling/output_parser';
 import { omit } from 'lodash';
-import { BINARY_ENCODING, jsonParse, NodeConnectionType, NodeOperationError } from 'n8n-workflow';
+import { BINARY_ENCODING, jsonParse, NodeConnectionTypes, NodeOperationError } from 'n8n-workflow';
 import type { IExecuteFunctions, INodeExecutionData } from 'n8n-workflow';
 import type { ZodObject } from 'zod';
 import { z } from 'zod';
@@ -275,7 +275,7 @@ export const getAgentStepsParser =
  * @returns The validated chat model
  */
 export async function getChatModel(ctx: IExecuteFunctions): Promise<BaseChatModel> {
-	const model = await ctx.getInputConnectionData(NodeConnectionType.AiLanguageModel, 0);
+	const model = await ctx.getInputConnectionData(NodeConnectionTypes.AiLanguageModel, 0);
 	if (!isChatInstance(model) || !model.bindTools) {
 		throw new NodeOperationError(
 			ctx.getNode(),
@@ -294,7 +294,7 @@ export async function getChatModel(ctx: IExecuteFunctions): Promise<BaseChatMode
 export async function getOptionalMemory(
 	ctx: IExecuteFunctions,
 ): Promise<BaseChatMemory | undefined> {
-	return (await ctx.getInputConnectionData(NodeConnectionType.AiMemory, 0)) as
+	return (await ctx.getInputConnectionData(NodeConnectionTypes.AiMemory, 0)) as
 		| BaseChatMemory
 		| undefined;
 }

packages/@n8n/nodes-langchain/nodes/agents/OpenAiAssistant/OpenAiAssistant.node.ts

@@ -1,7 +1,7 @@
 import { AgentExecutor } from 'langchain/agents';
 import type { OpenAIToolType } from 'langchain/dist/experimental/openai_assistant/schema';
 import { OpenAIAssistantRunnable } from 'langchain/experimental/openai_assistant';
-import { NodeConnectionType, NodeOperationError } from 'n8n-workflow';
+import { NodeConnectionTypes, NodeOperationError } from 'n8n-workflow';
 import type {
 	IExecuteFunctions,
 	INodeExecutionData,
@@ -44,10 +44,10 @@ export class OpenAiAssistant implements INodeType {
 			},
 		},
 		inputs: [
-			{ type: NodeConnectionType.Main },
-			{ type: NodeConnectionType.AiTool, displayName: 'Tools' },
+			{ type: NodeConnectionTypes.Main },
+			{ type: NodeConnectionTypes.AiTool, displayName: 'Tools' },
 		],
-		outputs: [NodeConnectionType.Main],
+		outputs: [NodeConnectionTypes.Main],
 		credentials: [
 			{
 				name: 'openAiApi',

packages/@n8n/nodes-langchain/nodes/chains/ChainLLM/ChainLlm.node.ts

@@ -5,7 +5,7 @@ import type {
 	INodeType,
 	INodeTypeDescription,
 } from 'n8n-workflow';
-import { NodeApiError, NodeConnectionType, NodeOperationError } from 'n8n-workflow';
+import { NodeApiError, NodeConnectionTypes, NodeOperationError } from 'n8n-workflow';
 
 import { getPromptInputByType } from '@utils/helpers';
 import { getOptionalOutputParser } from '@utils/output_parsers/N8nOutputParser';
@@ -55,7 +55,7 @@ export class ChainLlm implements INodeType {
 			},
 		},
 		inputs: `={{ ((parameter) => { ${getInputs.toString()}; return getInputs(parameter) })($parameter) }}`,
-		outputs: [NodeConnectionType.Main],
+		outputs: [NodeConnectionTypes.Main],
 		credentials: [],
 		properties: nodeProperties,
 	};
@@ -73,7 +73,7 @@ export class ChainLlm implements INodeType {
 			try {
 				// Get the language model
 				const llm = (await this.getInputConnectionData(
-					NodeConnectionType.AiLanguageModel,
+					NodeConnectionTypes.AiLanguageModel,
 					0,
 				)) as BaseLanguageModel;
 

packages/@n8n/nodes-langchain/nodes/chains/ChainLLM/methods/config.ts

@@ -3,8 +3,8 @@ import {
 	HumanMessagePromptTemplate,
 	SystemMessagePromptTemplate,
 } from '@langchain/core/prompts';
-import type { IDataObject, INodeProperties } from 'n8n-workflow';
-import { NodeConnectionType } from 'n8n-workflow';
+import type { IDataObject, INodeInputConfiguration, INodeProperties } from 'n8n-workflow';
+import { NodeConnectionTypes } from 'n8n-workflow';
 
 import { promptTypeOptions, textFromPreviousNode } from '@utils/descriptions';
 import { getTemplateNoticeField } from '@utils/sharedFields';
@@ -13,7 +13,7 @@ import { getTemplateNoticeField } from '@utils/sharedFields';
  * Dynamic input configuration generation based on node parameters
  */
 export function getInputs(parameters: IDataObject) {
-	const inputs = [
+	const inputs: INodeInputConfiguration[] = [
 		{ displayName: '', type: 'main' },
 		{
 			displayName: 'Model',
@@ -260,7 +260,7 @@ export const nodeProperties: INodeProperties[] = [
 		],
 	},
 	{
-		displayName: `Connect an <a data-action='openSelectiveNodeCreator' data-action-parameter-connectiontype='${NodeConnectionType.AiOutputParser}'>output parser</a> on the canvas to specify the output format you require`,
+		displayName: `Connect an <a data-action='openSelectiveNodeCreator' data-action-parameter-connectiontype='${NodeConnectionTypes.AiOutputParser}'>output parser</a> on the canvas to specify the output format you require`,
 		name: 'notice',
 		type: 'notice',
 		default: '',

packages/@n8n/nodes-langchain/nodes/chains/ChainLLM/methods/imageUtils.ts

@@ -3,7 +3,7 @@ import { HumanMessage } from '@langchain/core/messages';
 import { ChatGoogleGenerativeAI } from '@langchain/google-genai';
 import { ChatOllama } from '@langchain/ollama';
 import type { IExecuteFunctions, IBinaryData } from 'n8n-workflow';
-import { NodeOperationError, NodeConnectionType, OperationalError } from 'n8n-workflow';
+import { NodeOperationError, NodeConnectionTypes, OperationalError } from 'n8n-workflow';
 
 import type { MessageTemplate } from './types';
 
@@ -69,7 +69,7 @@ export async function createImageMessage({
 
 	const bufferData = await context.helpers.getBinaryDataBuffer(itemIndex, binaryDataKey);
 	const model = (await context.getInputConnectionData(
-		NodeConnectionType.AiLanguageModel,
+		NodeConnectionTypes.AiLanguageModel,
 		0,
 	)) as BaseLanguageModel;
 

packages/@n8n/nodes-langchain/nodes/chains/ChainLLM/test/ChainLlm.node.test.ts

@@ -3,7 +3,7 @@
 import { FakeChatModel } from '@langchain/core/utils/testing';
 import { mock } from 'jest-mock-extended';
 import type { IExecuteFunctions, INode } from 'n8n-workflow';
-import { NodeConnectionType } from 'n8n-workflow';
+import { NodeConnectionTypes } from 'n8n-workflow';
 
 import * as helperModule from '@utils/helpers';
 import * as outputParserModule from '@utils/output_parsers/N8nOutputParser';
@@ -64,7 +64,7 @@ describe('ChainLlm Node', () => {
 			expect(node.description.version).toContain(1.5);
 			expect(node.description.properties).toBeDefined();
 			expect(node.description.inputs).toBeDefined();
-			expect(node.description.outputs).toEqual([NodeConnectionType.Main]);
+			expect(node.description.outputs).toEqual([NodeConnectionTypes.Main]);
 		});
 	});
 

packages/@n8n/nodes-langchain/nodes/chains/ChainLLM/test/config.test.ts

@@ -1,4 +1,4 @@
-import { NodeConnectionType } from 'n8n-workflow';
+import { NodeConnectionTypes } from 'n8n-workflow';
 
 import { getInputs, nodeProperties } from '../methods/config';
 
@@ -8,24 +8,24 @@ describe('config', () => {
 			const inputs = getInputs({});
 
 			expect(inputs).toHaveLength(3);
-			expect(inputs[0].type).toBe(NodeConnectionType.Main);
-			expect(inputs[1].type).toBe(NodeConnectionType.AiLanguageModel);
-			expect(inputs[2].type).toBe(NodeConnectionType.AiOutputParser);
+			expect(inputs[0].type).toBe(NodeConnectionTypes.Main);
+			expect(inputs[1].type).toBe(NodeConnectionTypes.AiLanguageModel);
+			expect(inputs[2].type).toBe(NodeConnectionTypes.AiOutputParser);
 		});
 
 		it('should exclude the OutputParser when hasOutputParser is false', () => {
 			const inputs = getInputs({ hasOutputParser: false });
 
 			expect(inputs).toHaveLength(2);
-			expect(inputs[0].type).toBe(NodeConnectionType.Main);
-			expect(inputs[1].type).toBe(NodeConnectionType.AiLanguageModel);
+			expect(inputs[0].type).toBe(NodeConnectionTypes.Main);
+			expect(inputs[1].type).toBe(NodeConnectionTypes.AiLanguageModel);
 		});
 
 		it('should include the OutputParser when hasOutputParser is true', () => {
 			const inputs = getInputs({ hasOutputParser: true });
 
 			expect(inputs).toHaveLength(3);
-			expect(inputs[2].type).toBe(NodeConnectionType.AiOutputParser);
+			expect(inputs[2].type).toBe(NodeConnectionTypes.AiOutputParser);
 		});
 	});
 

packages/@n8n/nodes-langchain/nodes/chains/ChainRetrievalQA/ChainRetrievalQa.node.ts

@@ -8,7 +8,7 @@ import {
 import type { BaseRetriever } from '@langchain/core/retrievers';
 import { createStuffDocumentsChain } from 'langchain/chains/combine_documents';
 import { createRetrievalChain } from 'langchain/chains/retrieval';
-import { NodeConnectionType, NodeOperationError, parseErrorMetadata } from 'n8n-workflow';
+import { NodeConnectionTypes, NodeOperationError, parseErrorMetadata } from 'n8n-workflow';
 import {
 	type INodeProperties,
 	type IExecuteFunctions,
@@ -70,21 +70,21 @@ export class ChainRetrievalQa implements INodeType {
 		},
 		// eslint-disable-next-line n8n-nodes-base/node-class-description-inputs-wrong-regular-node
 		inputs: [
-			NodeConnectionType.Main,
+			NodeConnectionTypes.Main,
 			{
 				displayName: 'Model',
 				maxConnections: 1,
-				type: NodeConnectionType.AiLanguageModel,
+				type: NodeConnectionTypes.AiLanguageModel,
 				required: true,
 			},
 			{
 				displayName: 'Retriever',
 				maxConnections: 1,
-				type: NodeConnectionType.AiRetriever,
+				type: NodeConnectionTypes.AiRetriever,
 				required: true,
 			},
 		],
-		outputs: [NodeConnectionType.Main],
+		outputs: [NodeConnectionTypes.Main],
 		credentials: [],
 		properties: [
 			getTemplateNoticeField(1960),
@@ -192,12 +192,12 @@ export class ChainRetrievalQa implements INodeType {
 		for (let itemIndex = 0; itemIndex < items.length; itemIndex++) {
 			try {
 				const model = (await this.getInputConnectionData(
-					NodeConnectionType.AiLanguageModel,
+					NodeConnectionTypes.AiLanguageModel,
 					0,
 				)) as BaseLanguageModel;
 
 				const retriever = (await this.getInputConnectionData(
-					NodeConnectionType.AiRetriever,
+					NodeConnectionTypes.AiRetriever,
 					0,
 				)) as BaseRetriever;
 

packages/@n8n/nodes-langchain/nodes/chains/ChainRetrievalQA/test/ChainRetrievalQa.node.test.ts

@@ -3,8 +3,8 @@ import type { BaseLanguageModel } from '@langchain/core/language_models/base';
 import type { BaseRetriever } from '@langchain/core/retrievers';
 import { FakeChatModel, FakeLLM, FakeRetriever } from '@langchain/core/utils/testing';
 import get from 'lodash/get';
-import type { IDataObject, IExecuteFunctions } from 'n8n-workflow';
-import { NodeConnectionType, NodeOperationError, UnexpectedError } from 'n8n-workflow';
+import type { IDataObject, IExecuteFunctions, NodeConnectionType } from 'n8n-workflow';
+import { NodeConnectionTypes, NodeOperationError, UnexpectedError } from 'n8n-workflow';
 
 import { ChainRetrievalQa } from '../ChainRetrievalQa.node';
 
@@ -27,10 +27,10 @@ const createExecuteFunctionsMock = (
 			};
 		},
 		getInputConnectionData(type: NodeConnectionType) {
-			if (type === NodeConnectionType.AiLanguageModel) {
+			if (type === NodeConnectionTypes.AiLanguageModel) {
 				return fakeLlm;
 			}
-			if (type === NodeConnectionType.AiRetriever) {
+			if (type === NodeConnectionTypes.AiRetriever) {
 				return fakeRetriever;
 			}
 			return null;

packages/@n8n/nodes-langchain/nodes/chains/ChainSummarization/V1/ChainSummarizationV1.node.ts

@@ -4,7 +4,7 @@ import { PromptTemplate } from '@langchain/core/prompts';
 import type { SummarizationChainParams } from 'langchain/chains';
 import { loadSummarizationChain } from 'langchain/chains';
 import {
-	NodeConnectionType,
+	NodeConnectionTypes,
 	type INodeTypeBaseDescription,
 	type IExecuteFunctions,
 	type INodeExecutionData,
@@ -31,21 +31,21 @@ export class ChainSummarizationV1 implements INodeType {
 			},
 			// eslint-disable-next-line n8n-nodes-base/node-class-description-inputs-wrong-regular-node
 			inputs: [
-				NodeConnectionType.Main,
+				NodeConnectionTypes.Main,
 				{
 					displayName: 'Model',
 					maxConnections: 1,
-					type: NodeConnectionType.AiLanguageModel,
+					type: NodeConnectionTypes.AiLanguageModel,
 					required: true,
 				},
 				{
 					displayName: 'Document',
 					maxConnections: 1,
-					type: NodeConnectionType.AiDocument,
+					type: NodeConnectionTypes.AiDocument,
 					required: true,
 				},
 			],
-			outputs: [NodeConnectionType.Main],
+			outputs: [NodeConnectionTypes.Main],
 			credentials: [],
 			properties: [
 				getTemplateNoticeField(1951),
@@ -167,11 +167,11 @@ export class ChainSummarizationV1 implements INodeType {
 		const type = this.getNodeParameter('type', 0) as 'map_reduce' | 'stuff' | 'refine';
 
 		const model = (await this.getInputConnectionData(
-			NodeConnectionType.AiLanguageModel,
+			NodeConnectionTypes.AiLanguageModel,
 			0,
 		)) as BaseLanguageModel;
 
-		const documentInput = (await this.getInputConnectionData(NodeConnectionType.AiDocument, 0)) as
+		const documentInput = (await this.getInputConnectionData(NodeConnectionTypes.AiDocument, 0)) as
 			| N8nJsonLoader
 			| Array<Document<Record<string, unknown>>>;
 

packages/@n8n/nodes-langchain/nodes/chains/ChainSummarization/V2/ChainSummarizationV2.node.ts

@@ -10,8 +10,9 @@ import type {
 	INodeType,
 	INodeTypeDescription,
 	IDataObject,
+	INodeInputConfiguration,
 } from 'n8n-workflow';
-import { NodeConnectionType } from 'n8n-workflow';
+import { NodeConnectionTypes } from 'n8n-workflow';
 
 import { N8nBinaryLoader } from '@utils/N8nBinaryLoader';
 import { N8nJsonLoader } from '@utils/N8nJsonLoader';
@@ -24,7 +25,7 @@ import { REFINE_PROMPT_TEMPLATE, DEFAULT_PROMPT_TEMPLATE } from '../prompt';
 function getInputs(parameters: IDataObject) {
 	const chunkingMode = parameters?.chunkingMode;
 	const operationMode = parameters?.operationMode;
-	const inputs = [
+	const inputs: INodeInputConfiguration[] = [
 		{ displayName: '', type: 'main' },
 		{
 			displayName: 'Model',
@@ -69,7 +70,7 @@ export class ChainSummarizationV2 implements INodeType {
 			},
 			// eslint-disable-next-line n8n-nodes-base/node-class-description-inputs-wrong-regular-node
 			inputs: `={{ ((parameter) => { ${getInputs.toString()}; return getInputs(parameter) })($parameter) }}`,
-			outputs: [NodeConnectionType.Main],
+			outputs: [NodeConnectionTypes.Main],
 			credentials: [],
 			properties: [
 				getTemplateNoticeField(1951),
@@ -327,7 +328,7 @@ export class ChainSummarizationV2 implements INodeType {
 		for (let itemIndex = 0; itemIndex < items.length; itemIndex++) {
 			try {
 				const model = (await this.getInputConnectionData(
-					NodeConnectionType.AiLanguageModel,
+					NodeConnectionTypes.AiLanguageModel,
 					0,
 				)) as BaseLanguageModel;
 
@@ -356,7 +357,7 @@ export class ChainSummarizationV2 implements INodeType {
 				// Use dedicated document loader input to load documents
 				if (operationMode === 'documentLoader') {
 					const documentInput = (await this.getInputConnectionData(
-						NodeConnectionType.AiDocument,
+						NodeConnectionTypes.AiDocument,
 						0,
 					)) as N8nJsonLoader | Array<Document<Record<string, unknown>>>;
 
@@ -390,7 +391,7 @@ export class ChainSummarizationV2 implements INodeType {
 						// In advanced mode user can connect text splitter node so we just retrieve it
 						case 'advanced':
 							textSplitter = (await this.getInputConnectionData(
-								NodeConnectionType.AiTextSplitter,
+								NodeConnectionTypes.AiTextSplitter,
 								0,
 							)) as TextSplitter | undefined;
 							break;

packages/@n8n/nodes-langchain/nodes/chains/InformationExtractor/InformationExtractor.node.ts

@@ -3,7 +3,7 @@ import { HumanMessage } from '@langchain/core/messages';
 import { ChatPromptTemplate, SystemMessagePromptTemplate } from '@langchain/core/prompts';
 import type { JSONSchema7 } from 'json-schema';
 import { OutputFixingParser, StructuredOutputParser } from 'langchain/output_parsers';
-import { jsonParse, NodeConnectionType, NodeOperationError } from 'n8n-workflow';
+import { jsonParse, NodeConnectionTypes, NodeOperationError } from 'n8n-workflow';
 import type {
 	INodeType,
 	INodeTypeDescription,
@@ -51,15 +51,15 @@ export class InformationExtractor implements INodeType {
 			name: 'Information Extractor',
 		},
 		inputs: [
-			{ displayName: '', type: NodeConnectionType.Main },
+			{ displayName: '', type: NodeConnectionTypes.Main },
 			{
 				displayName: 'Model',
 				maxConnections: 1,
-				type: NodeConnectionType.AiLanguageModel,
+				type: NodeConnectionTypes.AiLanguageModel,
 				required: true,
 			},
 		],
-		outputs: [NodeConnectionType.Main],
+		outputs: [NodeConnectionTypes.Main],
 		properties: [
 			{
 				displayName: 'Text',
@@ -222,7 +222,7 @@ export class InformationExtractor implements INodeType {
 		const items = this.getInputData();
 
 		const llm = (await this.getInputConnectionData(
-			NodeConnectionType.AiLanguageModel,
+			NodeConnectionTypes.AiLanguageModel,
 			0,
 		)) as BaseLanguageModel;
 

packages/@n8n/nodes-langchain/nodes/chains/SentimentAnalysis/SentimentAnalysis.node.ts

@@ -2,7 +2,7 @@ import type { BaseLanguageModel } from '@langchain/core/language_models/base';
 import { HumanMessage } from '@langchain/core/messages';
 import { SystemMessagePromptTemplate, ChatPromptTemplate } from '@langchain/core/prompts';
 import { OutputFixingParser, StructuredOutputParser } from 'langchain/output_parsers';
-import { NodeConnectionType, NodeOperationError } from 'n8n-workflow';
+import { NodeConnectionTypes, NodeOperationError } from 'n8n-workflow';
 import type {
 	IDataObject,
 	IExecuteFunctions,
@@ -24,7 +24,7 @@ const configuredOutputs = (parameters: INodeParameters, defaultCategories: strin
 	const categories = (options?.categories as string) ?? defaultCategories;
 	const categoriesArray = categories.split(',').map((cat) => cat.trim());
 
-	const ret = categoriesArray.map((cat) => ({ type: NodeConnectionType.Main, displayName: cat }));
+	const ret = categoriesArray.map((cat) => ({ type: NodeConnectionTypes.Main, displayName: cat }));
 	return ret;
 };
 
@@ -54,11 +54,11 @@ export class SentimentAnalysis implements INodeType {
 			name: 'Sentiment Analysis',
 		},
 		inputs: [
-			{ displayName: '', type: NodeConnectionType.Main },
+			{ displayName: '', type: NodeConnectionTypes.Main },
 			{
 				displayName: 'Model',
 				maxConnections: 1,
-				type: NodeConnectionType.AiLanguageModel,
+				type: NodeConnectionTypes.AiLanguageModel,
 				required: true,
 			},
 		],
@@ -140,7 +140,7 @@ export class SentimentAnalysis implements INodeType {
 		const items = this.getInputData();
 
 		const llm = (await this.getInputConnectionData(
-			NodeConnectionType.AiLanguageModel,
+			NodeConnectionTypes.AiLanguageModel,
 			0,
 		)) as BaseLanguageModel;
 

packages/@n8n/nodes-langchain/nodes/chains/TextClassifier/TextClassifier.node.ts

@@ -2,7 +2,7 @@ import type { BaseLanguageModel } from '@langchain/core/language_models/base';
 import { HumanMessage } from '@langchain/core/messages';
 import { SystemMessagePromptTemplate, ChatPromptTemplate } from '@langchain/core/prompts';
 import { OutputFixingParser, StructuredOutputParser } from 'langchain/output_parsers';
-import { NodeOperationError, NodeConnectionType } from 'n8n-workflow';
+import { NodeOperationError, NodeConnectionTypes } from 'n8n-workflow';
 import type {
 	IDataObject,
 	IExecuteFunctions,
@@ -22,9 +22,9 @@ const configuredOutputs = (parameters: INodeParameters) => {
 	const categories = ((parameters.categories as IDataObject)?.categories as IDataObject[]) ?? [];
 	const fallback = (parameters.options as IDataObject)?.fallback as string;
 	const ret = categories.map((cat) => {
-		return { type: NodeConnectionType.Main, displayName: cat.category };
+		return { type: NodeConnectionTypes.Main, displayName: cat.category };
 	});
-	if (fallback === 'other') ret.push({ type: NodeConnectionType.Main, displayName: 'Other' });
+	if (fallback === 'other') ret.push({ type: NodeConnectionTypes.Main, displayName: 'Other' });
 	return ret;
 };
 
@@ -54,11 +54,11 @@ export class TextClassifier implements INodeType {
 			name: 'Text Classifier',
 		},
 		inputs: [
-			{ displayName: '', type: NodeConnectionType.Main },
+			{ displayName: '', type: NodeConnectionTypes.Main },
 			{
 				displayName: 'Model',
 				maxConnections: 1,
-				type: NodeConnectionType.AiLanguageModel,
+				type: NodeConnectionTypes.AiLanguageModel,
 				required: true,
 			},
 		],
@@ -167,7 +167,7 @@ export class TextClassifier implements INodeType {
 		const items = this.getInputData();
 
 		const llm = (await this.getInputConnectionData(
-			NodeConnectionType.AiLanguageModel,
+			NodeConnectionTypes.AiLanguageModel,
 			0,
 		)) as BaseLanguageModel;
 

packages/@n8n/nodes-langchain/nodes/code/Code.node.ts

@@ -4,7 +4,7 @@ import { makeResolverFromLegacyOptions } from '@n8n/vm2';
 import { JavaScriptSandbox } from 'n8n-nodes-base/dist/nodes/Code/JavaScriptSandbox';
 import { getSandboxContext } from 'n8n-nodes-base/dist/nodes/Code/Sandbox';
 import { standardizeOutput } from 'n8n-nodes-base/dist/nodes/Code/utils';
-import { NodeOperationError, NodeConnectionType } from 'n8n-workflow';
+import { NodeOperationError, NodeConnectionTypes } from 'n8n-workflow';
 import type {
 	IExecuteFunctions,
 	INodeExecutionData,
@@ -24,16 +24,16 @@ const { NODE_FUNCTION_ALLOW_BUILTIN: builtIn, NODE_FUNCTION_ALLOW_EXTERNAL: exte
 
 // TODO: Replace
 const connectorTypes = {
-	[NodeConnectionType.AiChain]: 'Chain',
-	[NodeConnectionType.AiDocument]: 'Document',
-	[NodeConnectionType.AiEmbedding]: 'Embedding',
-	[NodeConnectionType.AiLanguageModel]: 'Language Model',
-	[NodeConnectionType.AiMemory]: 'Memory',
-	[NodeConnectionType.AiOutputParser]: 'Output Parser',
-	[NodeConnectionType.AiTextSplitter]: 'Text Splitter',
-	[NodeConnectionType.AiTool]: 'Tool',
-	[NodeConnectionType.AiVectorStore]: 'Vector Store',
-	[NodeConnectionType.Main]: 'Main',
+	[NodeConnectionTypes.AiChain]: 'Chain',
+	[NodeConnectionTypes.AiDocument]: 'Document',
+	[NodeConnectionTypes.AiEmbedding]: 'Embedding',
+	[NodeConnectionTypes.AiLanguageModel]: 'Language Model',
+	[NodeConnectionTypes.AiMemory]: 'Memory',
+	[NodeConnectionTypes.AiOutputParser]: 'Output Parser',
+	[NodeConnectionTypes.AiTextSplitter]: 'Text Splitter',
+	[NodeConnectionTypes.AiTool]: 'Tool',
+	[NodeConnectionTypes.AiVectorStore]: 'Vector Store',
+	[NodeConnectionTypes.Main]: 'Main',
 };
 
 const defaultCodeExecute = `const { PromptTemplate } = require('@langchain/core/prompts');
@@ -304,7 +304,7 @@ export class Code implements INodeType {
 
 		const outputs = this.getNodeOutputs();
 		const mainOutputs: INodeOutputConfiguration[] = outputs.filter(
-			(output) => output.type === NodeConnectionType.Main,
+			(output) => output.type === NodeConnectionTypes.Main,
 		);
 
 		const options = { multiOutput: mainOutputs.length !== 1 };

packages/@n8n/nodes-langchain/nodes/document_loaders/DocumentBinaryInputLoader/DocumentBinaryInputLoader.node.ts

@@ -1,7 +1,7 @@
 /* eslint-disable n8n-nodes-base/node-dirname-against-convention */
 import type { TextSplitter } from '@langchain/textsplitters';
 import {
-	NodeConnectionType,
+	NodeConnectionTypes,
 	type INodeType,
 	type INodeTypeDescription,
 	type ISupplyDataFunctions,
@@ -51,15 +51,15 @@ export class DocumentBinaryInputLoader implements INodeType {
 			{
 				displayName: 'Text Splitter',
 				maxConnections: 1,
-				type: NodeConnectionType.AiTextSplitter,
+				type: NodeConnectionTypes.AiTextSplitter,
 				required: true,
 			},
 		],
 		// eslint-disable-next-line n8n-nodes-base/node-class-description-outputs-wrong
-		outputs: [NodeConnectionType.AiDocument],
+		outputs: [NodeConnectionTypes.AiDocument],
 		outputNames: ['Document'],
 		properties: [
-			getConnectionHintNoticeField([NodeConnectionType.AiVectorStore]),
+			getConnectionHintNoticeField([NodeConnectionTypes.AiVectorStore]),
 			{
 				displayName: 'Loader Type',
 				name: 'loader',
@@ -179,7 +179,7 @@ export class DocumentBinaryInputLoader implements INodeType {
 	async supplyData(this: ISupplyDataFunctions): Promise<SupplyData> {
 		this.logger.debug('Supply Data for Binary Input Loader');
 		const textSplitter = (await this.getInputConnectionData(
-			NodeConnectionType.AiTextSplitter,
+			NodeConnectionTypes.AiTextSplitter,
 			0,
 		)) as TextSplitter | undefined;
 

packages/@n8n/nodes-langchain/nodes/document_loaders/DocumentDefaultDataLoader/DocumentDefaultDataLoader.node.ts

@@ -1,7 +1,7 @@
 /* eslint-disable n8n-nodes-base/node-dirname-against-convention */
 import type { TextSplitter } from '@langchain/textsplitters';
 import {
-	NodeConnectionType,
+	NodeConnectionTypes,
 	type INodeType,
 	type INodeTypeDescription,
 	type ISupplyDataFunctions,
@@ -49,12 +49,12 @@ export class DocumentDefaultDataLoader implements INodeType {
 			{
 				displayName: 'Text Splitter',
 				maxConnections: 1,
-				type: NodeConnectionType.AiTextSplitter,
+				type: NodeConnectionTypes.AiTextSplitter,
 				required: true,
 			},
 		],
 		// eslint-disable-next-line n8n-nodes-base/node-class-description-outputs-wrong
-		outputs: [NodeConnectionType.AiDocument],
+		outputs: [NodeConnectionTypes.AiDocument],
 		outputNames: ['Document'],
 		properties: [
 			{
@@ -286,7 +286,7 @@ export class DocumentDefaultDataLoader implements INodeType {
 	async supplyData(this: ISupplyDataFunctions, itemIndex: number): Promise<SupplyData> {
 		const dataType = this.getNodeParameter('dataType', itemIndex, 'json') as 'json' | 'binary';
 		const textSplitter = (await this.getInputConnectionData(
-			NodeConnectionType.AiTextSplitter,
+			NodeConnectionTypes.AiTextSplitter,
 			0,
 		)) as TextSplitter | undefined;
 		const binaryDataKey = this.getNodeParameter('binaryDataKey', itemIndex, '') as string;

packages/@n8n/nodes-langchain/nodes/document_loaders/DocumentGithubLoader/DocumentGithubLoader.node.ts

@@ -2,7 +2,7 @@
 import { GithubRepoLoader } from '@langchain/community/document_loaders/web/github';
 import type { CharacterTextSplitter } from '@langchain/textsplitters';
 import {
-	NodeConnectionType,
+	NodeConnectionTypes,
 	type INodeType,
 	type INodeTypeDescription,
 	type ISupplyDataFunctions,
@@ -47,15 +47,15 @@ export class DocumentGithubLoader implements INodeType {
 			{
 				displayName: 'Text Splitter',
 				maxConnections: 1,
-				type: NodeConnectionType.AiTextSplitter,
+				type: NodeConnectionTypes.AiTextSplitter,
 			},
 		],
 		inputNames: ['Text Splitter'],
 		// eslint-disable-next-line n8n-nodes-base/node-class-description-outputs-wrong
-		outputs: [NodeConnectionType.AiDocument],
+		outputs: [NodeConnectionTypes.AiDocument],
 		outputNames: ['Document'],
 		properties: [
-			getConnectionHintNoticeField([NodeConnectionType.AiVectorStore]),
+			getConnectionHintNoticeField([NodeConnectionTypes.AiVectorStore]),
 			{
 				displayName: 'Repository Link',
 				name: 'repository',
@@ -106,11 +106,11 @@ export class DocumentGithubLoader implements INodeType {
 		};
 
 		const textSplitter = (await this.getInputConnectionData(
-			NodeConnectionType.AiTextSplitter,
+			NodeConnectionTypes.AiTextSplitter,
 			0,
 		)) as CharacterTextSplitter | undefined;
 
-		const { index } = this.addInputData(NodeConnectionType.AiDocument, [
+		const { index } = this.addInputData(NodeConnectionTypes.AiDocument, [
 			[{ json: { repository, branch, ignorePaths, recursive } }],
 		]);
 		const docs = new GithubRepoLoader(repository, {
@@ -125,7 +125,7 @@ export class DocumentGithubLoader implements INodeType {
 			? await textSplitter.splitDocuments(await docs.load())
 			: await docs.load();
 
-		this.addOutputData(NodeConnectionType.AiDocument, index, [[{ json: { loadedDocs } }]]);
+		this.addOutputData(NodeConnectionTypes.AiDocument, index, [[{ json: { loadedDocs } }]]);
 		return {
 			response: logWrapper(loadedDocs, this),
 		};

packages/@n8n/nodes-langchain/nodes/document_loaders/DocumentJSONInputLoader/DocumentJsonInputLoader.node.ts

@@ -1,7 +1,7 @@
 /* eslint-disable n8n-nodes-base/node-dirname-against-convention */
 import type { TextSplitter } from '@langchain/textsplitters';
 import {
-	NodeConnectionType,
+	NodeConnectionTypes,
 	type INodeType,
 	type INodeTypeDescription,
 	type ISupplyDataFunctions,
@@ -44,15 +44,15 @@ export class DocumentJsonInputLoader implements INodeType {
 			{
 				displayName: 'Text Splitter',
 				maxConnections: 1,
-				type: NodeConnectionType.AiTextSplitter,
+				type: NodeConnectionTypes.AiTextSplitter,
 			},
 		],
 		inputNames: ['Text Splitter'],
 		// eslint-disable-next-line n8n-nodes-base/node-class-description-outputs-wrong
-		outputs: [NodeConnectionType.AiDocument],
+		outputs: [NodeConnectionTypes.AiDocument],
 		outputNames: ['Document'],
 		properties: [
-			getConnectionHintNoticeField([NodeConnectionType.AiVectorStore]),
+			getConnectionHintNoticeField([NodeConnectionTypes.AiVectorStore]),
 			{
 				displayName: 'Pointers',
 				name: 'pointers',
@@ -82,7 +82,7 @@ export class DocumentJsonInputLoader implements INodeType {
 	async supplyData(this: ISupplyDataFunctions): Promise<SupplyData> {
 		this.logger.debug('Supply Data for JSON Input Loader');
 		const textSplitter = (await this.getInputConnectionData(
-			NodeConnectionType.AiTextSplitter,
+			NodeConnectionTypes.AiTextSplitter,
 			0,
 		)) as TextSplitter | undefined;
 

packages/@n8n/nodes-langchain/nodes/embeddings/EmbeddingsAwsBedrock/EmbeddingsAwsBedrock.node.ts

@@ -1,7 +1,7 @@
 /* eslint-disable n8n-nodes-base/node-dirname-against-convention */
 import { BedrockEmbeddings } from '@langchain/aws';
 import {
-	NodeConnectionType,
+	NodeConnectionTypes,
 	type INodeType,
 	type INodeTypeDescription,
 	type ISupplyDataFunctions,
@@ -45,14 +45,14 @@ export class EmbeddingsAwsBedrock implements INodeType {
 		// eslint-disable-next-line n8n-nodes-base/node-class-description-inputs-wrong-regular-node
 		inputs: [],
 		// eslint-disable-next-line n8n-nodes-base/node-class-description-outputs-wrong
-		outputs: [NodeConnectionType.AiEmbedding],
+		outputs: [NodeConnectionTypes.AiEmbedding],
 		outputNames: ['Embeddings'],
 		requestDefaults: {
 			ignoreHttpStatusErrors: true,
 			baseURL: '=https://bedrock.{{$credentials?.region ?? "eu-central-1"}}.amazonaws.com',
 		},
 		properties: [
-			getConnectionHintNoticeField([NodeConnectionType.AiVectorStore]),
+			getConnectionHintNoticeField([NodeConnectionTypes.AiVectorStore]),
 			{
 				displayName: 'Model',
 				name: 'model',

packages/@n8n/nodes-langchain/nodes/embeddings/EmbeddingsAzureOpenAi/EmbeddingsAzureOpenAi.node.ts

@@ -1,7 +1,7 @@
 /* eslint-disable n8n-nodes-base/node-dirname-against-convention */
 import { OpenAIEmbeddings } from '@langchain/openai';
 import {
-	NodeConnectionType,
+	NodeConnectionTypes,
 	type INodeType,
 	type INodeTypeDescription,
 	type ISupplyDataFunctions,
@@ -45,10 +45,10 @@ export class EmbeddingsAzureOpenAi implements INodeType {
 		// eslint-disable-next-line n8n-nodes-base/node-class-description-inputs-wrong-regular-node
 		inputs: [],
 		// eslint-disable-next-line n8n-nodes-base/node-class-description-outputs-wrong
-		outputs: [NodeConnectionType.AiEmbedding],
+		outputs: [NodeConnectionTypes.AiEmbedding],
 		outputNames: ['Embeddings'],
 		properties: [
-			getConnectionHintNoticeField([NodeConnectionType.AiVectorStore]),
+			getConnectionHintNoticeField([NodeConnectionTypes.AiVectorStore]),
 			{
 				displayName: 'Model (Deployment) Name',
 				name: 'model',

packages/@n8n/nodes-langchain/nodes/embeddings/EmbeddingsCohere/EmbeddingsCohere.node.ts

@@ -1,7 +1,7 @@
 /* eslint-disable n8n-nodes-base/node-dirname-against-convention */
 import { CohereEmbeddings } from '@langchain/cohere';
 import {
-	NodeConnectionType,
+	NodeConnectionTypes,
 	type INodeType,
 	type INodeTypeDescription,
 	type ISupplyDataFunctions,
@@ -48,10 +48,10 @@ export class EmbeddingsCohere implements INodeType {
 		// eslint-disable-next-line n8n-nodes-base/node-class-description-inputs-wrong-regular-node
 		inputs: [],
 		// eslint-disable-next-line n8n-nodes-base/node-class-description-outputs-wrong
-		outputs: [NodeConnectionType.AiEmbedding],
+		outputs: [NodeConnectionTypes.AiEmbedding],
 		outputNames: ['Embeddings'],
 		properties: [
-			getConnectionHintNoticeField([NodeConnectionType.AiVectorStore]),
+			getConnectionHintNoticeField([NodeConnectionTypes.AiVectorStore]),
 			{
 				displayName:
 					'Each model is using different dimensional density for embeddings. Please make sure to use the same dimensionality for your vector store. The default model is using 768-dimensional embeddings.',

packages/@n8n/nodes-langchain/nodes/embeddings/EmbeddingsGoogleGemini/EmbeddingsGoogleGemini.node.ts

@@ -1,7 +1,7 @@
 /* eslint-disable n8n-nodes-base/node-dirname-against-convention */
 import { GoogleGenerativeAIEmbeddings } from '@langchain/google-genai';
 import {
-	NodeConnectionType,
+	NodeConnectionTypes,
 	type INodeType,
 	type INodeTypeDescription,
 	type ISupplyDataFunctions,
@@ -48,10 +48,10 @@ export class EmbeddingsGoogleGemini implements INodeType {
 		// eslint-disable-next-line n8n-nodes-base/node-class-description-inputs-wrong-regular-node
 		inputs: [],
 		// eslint-disable-next-line n8n-nodes-base/node-class-description-outputs-wrong
-		outputs: [NodeConnectionType.AiEmbedding],
+		outputs: [NodeConnectionTypes.AiEmbedding],
 		outputNames: ['Embeddings'],
 		properties: [
-			getConnectionHintNoticeField([NodeConnectionType.AiVectorStore]),
+			getConnectionHintNoticeField([NodeConnectionTypes.AiVectorStore]),
 			{
 				displayName:
 					'Each model is using different dimensional density for embeddings. Please make sure to use the same dimensionality for your vector store. The default model is using 768-dimensional embeddings.',

packages/@n8n/nodes-langchain/nodes/embeddings/EmbeddingsHuggingFaceInference/EmbeddingsHuggingFaceInference.node.ts

@@ -1,7 +1,7 @@
 /* eslint-disable n8n-nodes-base/node-dirname-against-convention */
 import { HuggingFaceInferenceEmbeddings } from '@langchain/community/embeddings/hf';
 import {
-	NodeConnectionType,
+	NodeConnectionTypes,
 	type INodeType,
 	type INodeTypeDescription,
 	type ISupplyDataFunctions,
@@ -44,10 +44,10 @@ export class EmbeddingsHuggingFaceInference implements INodeType {
 		// eslint-disable-next-line n8n-nodes-base/node-class-description-inputs-wrong-regular-node
 		inputs: [],
 		// eslint-disable-next-line n8n-nodes-base/node-class-description-outputs-wrong
-		outputs: [NodeConnectionType.AiEmbedding],
+		outputs: [NodeConnectionTypes.AiEmbedding],
 		outputNames: ['Embeddings'],
 		properties: [
-			getConnectionHintNoticeField([NodeConnectionType.AiVectorStore]),
+			getConnectionHintNoticeField([NodeConnectionTypes.AiVectorStore]),
 			{
 				displayName:
 					'Each model is using different dimensional density for embeddings. Please make sure to use the same dimensionality for your vector store. The default model is using 768-dimensional embeddings.',

packages/@n8n/nodes-langchain/nodes/embeddings/EmbeddingsMistralCloud/EmbeddingsMistralCloud.node.ts

@@ -2,7 +2,7 @@
 import type { MistralAIEmbeddingsParams } from '@langchain/mistralai';
 import { MistralAIEmbeddings } from '@langchain/mistralai';
 import {
-	NodeConnectionType,
+	NodeConnectionTypes,
 	type INodeType,
 	type INodeTypeDescription,
 	type ISupplyDataFunctions,
@@ -46,14 +46,14 @@ export class EmbeddingsMistralCloud implements INodeType {
 		// eslint-disable-next-line n8n-nodes-base/node-class-description-inputs-wrong-regular-node
 		inputs: [],
 		// eslint-disable-next-line n8n-nodes-base/node-class-description-outputs-wrong
-		outputs: [NodeConnectionType.AiEmbedding],
+		outputs: [NodeConnectionTypes.AiEmbedding],
 		outputNames: ['Embeddings'],
 		requestDefaults: {
 			ignoreHttpStatusErrors: true,
 			baseURL: 'https://api.mistral.ai/v1',
 		},
 		properties: [
-			getConnectionHintNoticeField([NodeConnectionType.AiVectorStore]),
+			getConnectionHintNoticeField([NodeConnectionTypes.AiVectorStore]),
 			{
 				displayName: 'Model',
 				name: 'model',

packages/@n8n/nodes-langchain/nodes/embeddings/EmbeddingsOllama/EmbeddingsOllama.node.ts

@@ -1,7 +1,7 @@
 /* eslint-disable n8n-nodes-base/node-dirname-against-convention */
 import { OllamaEmbeddings } from '@langchain/ollama';
 import {
-	NodeConnectionType,
+	NodeConnectionTypes,
 	type INodeType,
 	type INodeTypeDescription,
 	type ISupplyDataFunctions,
@@ -41,9 +41,9 @@ export class EmbeddingsOllama implements INodeType {
 		// eslint-disable-next-line n8n-nodes-base/node-class-description-inputs-wrong-regular-node
 		inputs: [],
 		// eslint-disable-next-line n8n-nodes-base/node-class-description-outputs-wrong
-		outputs: [NodeConnectionType.AiEmbedding],
+		outputs: [NodeConnectionTypes.AiEmbedding],
 		outputNames: ['Embeddings'],
-		properties: [getConnectionHintNoticeField([NodeConnectionType.AiVectorStore]), ollamaModel],
+		properties: [getConnectionHintNoticeField([NodeConnectionTypes.AiVectorStore]), ollamaModel],
 	};
 
 	async supplyData(this: ISupplyDataFunctions, itemIndex: number): Promise<SupplyData> {

packages/@n8n/nodes-langchain/nodes/embeddings/EmbeddingsOpenAI/EmbeddingsOpenAi.node.ts

@@ -1,7 +1,7 @@
 /* eslint-disable n8n-nodes-base/node-dirname-against-convention */
 import { OpenAIEmbeddings } from '@langchain/openai';
 import {
-	NodeConnectionType,
+	NodeConnectionTypes,
 	type INodeType,
 	type INodeTypeDescription,
 	type SupplyData,
@@ -101,7 +101,7 @@ export class EmbeddingsOpenAi implements INodeType {
 		// eslint-disable-next-line n8n-nodes-base/node-class-description-inputs-wrong-regular-node
 		inputs: [],
 		// eslint-disable-next-line n8n-nodes-base/node-class-description-outputs-wrong
-		outputs: [NodeConnectionType.AiEmbedding],
+		outputs: [NodeConnectionTypes.AiEmbedding],
 		outputNames: ['Embeddings'],
 		requestDefaults: {
 			ignoreHttpStatusErrors: true,
@@ -109,7 +109,7 @@ export class EmbeddingsOpenAi implements INodeType {
 				'={{ $parameter.options?.baseURL?.split("/").slice(0,-1).join("/") || $credentials.url?.split("/").slice(0,-1).join("/") || "https://api.openai.com" }}',
 		},
 		properties: [
-			getConnectionHintNoticeField([NodeConnectionType.AiVectorStore]),
+			getConnectionHintNoticeField([NodeConnectionTypes.AiVectorStore]),
 			{
 				...modelParameter,
 				default: 'text-embedding-ada-002',

packages/@n8n/nodes-langchain/nodes/llms/LMChatAnthropic/LmChatAnthropic.node.ts

@@ -3,7 +3,7 @@
 import { ChatAnthropic } from '@langchain/anthropic';
 import type { LLMResult } from '@langchain/core/outputs';
 import {
-	NodeConnectionType,
+	NodeConnectionTypes,
 	type INodePropertyOptions,
 	type INodeProperties,
 	type ISupplyDataFunctions,
@@ -109,7 +109,7 @@ export class LmChatAnthropic implements INodeType {
 		// eslint-disable-next-line n8n-nodes-base/node-class-description-inputs-wrong-regular-node
 		inputs: [],
 		// eslint-disable-next-line n8n-nodes-base/node-class-description-outputs-wrong
-		outputs: [NodeConnectionType.AiLanguageModel],
+		outputs: [NodeConnectionTypes.AiLanguageModel],
 		outputNames: ['Model'],
 		credentials: [
 			{
@@ -118,7 +118,7 @@ export class LmChatAnthropic implements INodeType {
 			},
 		],
 		properties: [
-			getConnectionHintNoticeField([NodeConnectionType.AiChain, NodeConnectionType.AiChain]),
+			getConnectionHintNoticeField([NodeConnectionTypes.AiChain, NodeConnectionTypes.AiChain]),
 			{
 				...modelField,
 				displayOptions: {

packages/@n8n/nodes-langchain/nodes/llms/LMChatOllama/LmChatOllama.node.ts

@@ -3,7 +3,7 @@
 import type { ChatOllamaInput } from '@langchain/ollama';
 import { ChatOllama } from '@langchain/ollama';
 import {
-	NodeConnectionType,
+	NodeConnectionTypes,
 	type INodeType,
 	type INodeTypeDescription,
 	type ISupplyDataFunctions,
@@ -45,11 +45,11 @@ export class LmChatOllama implements INodeType {
 		// eslint-disable-next-line n8n-nodes-base/node-class-description-inputs-wrong-regular-node
 		inputs: [],
 		// eslint-disable-next-line n8n-nodes-base/node-class-description-outputs-wrong
-		outputs: [NodeConnectionType.AiLanguageModel],
+		outputs: [NodeConnectionTypes.AiLanguageModel],
 		outputNames: ['Model'],
 		...ollamaDescription,
 		properties: [
-			getConnectionHintNoticeField([NodeConnectionType.AiChain, NodeConnectionType.AiAgent]),
+			getConnectionHintNoticeField([NodeConnectionTypes.AiChain, NodeConnectionTypes.AiAgent]),
 			ollamaModel,
 			ollamaOptions,
 		],

packages/@n8n/nodes-langchain/nodes/llms/LMChatOpenAi/LmChatOpenAi.node.ts

@@ -2,7 +2,7 @@
 
 import { ChatOpenAI, type ClientOptions } from '@langchain/openai';
 import {
-	NodeConnectionType,
+	NodeConnectionTypes,
 	type INodeType,
 	type INodeTypeDescription,
 	type ISupplyDataFunctions,
@@ -51,7 +51,7 @@ export class LmChatOpenAi implements INodeType {
 		// eslint-disable-next-line n8n-nodes-base/node-class-description-inputs-wrong-regular-node
 		inputs: [],
 		// eslint-disable-next-line n8n-nodes-base/node-class-description-outputs-wrong
-		outputs: [NodeConnectionType.AiLanguageModel],
+		outputs: [NodeConnectionTypes.AiLanguageModel],
 		outputNames: ['Model'],
 		credentials: [
 			{
@@ -65,7 +65,7 @@ export class LmChatOpenAi implements INodeType {
 				'={{ $parameter.options?.baseURL?.split("/").slice(0,-1).join("/") || $credentials?.url?.split("/").slice(0,-1).join("/") || "https://api.openai.com" }}',
 		},
 		properties: [
-			getConnectionHintNoticeField([NodeConnectionType.AiChain, NodeConnectionType.AiAgent]),
+			getConnectionHintNoticeField([NodeConnectionTypes.AiChain, NodeConnectionTypes.AiAgent]),
 			{
 				displayName:
 					'If using JSON response format, you must include word "json" in the prompt in your chain or agent. Also, make sure to select latest models released post November 2023.',

packages/@n8n/nodes-langchain/nodes/llms/LMCohere/LmCohere.node.ts

@@ -1,7 +1,7 @@
 /* eslint-disable n8n-nodes-base/node-dirname-against-convention */
 import { Cohere } from '@langchain/cohere';
 import {
-	NodeConnectionType,
+	NodeConnectionTypes,
 	type INodeType,
 	type INodeTypeDescription,
 	type ISupplyDataFunctions,
@@ -42,7 +42,7 @@ export class LmCohere implements INodeType {
 		// eslint-disable-next-line n8n-nodes-base/node-class-description-inputs-wrong-regular-node
 		inputs: [],
 		// eslint-disable-next-line n8n-nodes-base/node-class-description-outputs-wrong
-		outputs: [NodeConnectionType.AiLanguageModel],
+		outputs: [NodeConnectionTypes.AiLanguageModel],
 		outputNames: ['Model'],
 		credentials: [
 			{
@@ -51,7 +51,7 @@ export class LmCohere implements INodeType {
 			},
 		],
 		properties: [
-			getConnectionHintNoticeField([NodeConnectionType.AiChain, NodeConnectionType.AiAgent]),
+			getConnectionHintNoticeField([NodeConnectionTypes.AiChain, NodeConnectionTypes.AiAgent]),
 			{
 				displayName: 'Options',
 				name: 'options',

packages/@n8n/nodes-langchain/nodes/llms/LMOllama/LmOllama.node.ts

@@ -2,7 +2,7 @@
 
 import { Ollama } from '@langchain/community/llms/ollama';
 import {
-	NodeConnectionType,
+	NodeConnectionTypes,
 	type INodeType,
 	type INodeTypeDescription,
 	type ISupplyDataFunctions,
@@ -44,11 +44,11 @@ export class LmOllama implements INodeType {
 		// eslint-disable-next-line n8n-nodes-base/node-class-description-inputs-wrong-regular-node
 		inputs: [],
 		// eslint-disable-next-line n8n-nodes-base/node-class-description-outputs-wrong
-		outputs: [NodeConnectionType.AiLanguageModel],
+		outputs: [NodeConnectionTypes.AiLanguageModel],
 		outputNames: ['Model'],
 		...ollamaDescription,
 		properties: [
-			getConnectionHintNoticeField([NodeConnectionType.AiChain, NodeConnectionType.AiAgent]),
+			getConnectionHintNoticeField([NodeConnectionTypes.AiChain, NodeConnectionTypes.AiAgent]),
 			ollamaModel,
 			ollamaOptions,
 		],

packages/@n8n/nodes-langchain/nodes/llms/LMOpenAi/LmOpenAi.node.ts

@@ -1,6 +1,6 @@
 /* eslint-disable n8n-nodes-base/node-dirname-against-convention */
 import { OpenAI, type ClientOptions } from '@langchain/openai';
-import { NodeConnectionType } from 'n8n-workflow';
+import { NodeConnectionTypes } from 'n8n-workflow';
 import type {
 	INodeType,
 	INodeTypeDescription,
@@ -53,7 +53,7 @@ export class LmOpenAi implements INodeType {
 		// eslint-disable-next-line n8n-nodes-base/node-class-description-inputs-wrong-regular-node
 		inputs: [],
 		// eslint-disable-next-line n8n-nodes-base/node-class-description-outputs-wrong
-		outputs: [NodeConnectionType.AiLanguageModel],
+		outputs: [NodeConnectionTypes.AiLanguageModel],
 		outputNames: ['Model'],
 		credentials: [
 			{

packages/@n8n/nodes-langchain/nodes/llms/LMOpenHuggingFaceInference/LmOpenHuggingFaceInference.node.ts

@@ -1,7 +1,7 @@
 /* eslint-disable n8n-nodes-base/node-dirname-against-convention */
 import { HuggingFaceInference } from '@langchain/community/llms/hf';
 import {
-	NodeConnectionType,
+	NodeConnectionTypes,
 	type INodeType,
 	type INodeTypeDescription,
 	type ISupplyDataFunctions,
@@ -42,7 +42,7 @@ export class LmOpenHuggingFaceInference implements INodeType {
 		// eslint-disable-next-line n8n-nodes-base/node-class-description-inputs-wrong-regular-node
 		inputs: [],
 		// eslint-disable-next-line n8n-nodes-base/node-class-description-outputs-wrong
-		outputs: [NodeConnectionType.AiLanguageModel],
+		outputs: [NodeConnectionTypes.AiLanguageModel],
 		outputNames: ['Model'],
 		credentials: [
 			{
@@ -51,7 +51,7 @@ export class LmOpenHuggingFaceInference implements INodeType {
 			},
 		],
 		properties: [
-			getConnectionHintNoticeField([NodeConnectionType.AiChain, NodeConnectionType.AiAgent]),
+			getConnectionHintNoticeField([NodeConnectionTypes.AiChain, NodeConnectionTypes.AiAgent]),
 			{
 				displayName: 'Model',
 				name: 'model',

packages/@n8n/nodes-langchain/nodes/llms/LmChatAwsBedrock/LmChatAwsBedrock.node.ts

@@ -1,7 +1,7 @@
 /* eslint-disable n8n-nodes-base/node-dirname-against-convention */
 import { ChatBedrockConverse } from '@langchain/aws';
 import {
-	NodeConnectionType,
+	NodeConnectionTypes,
 	type INodeType,
 	type INodeTypeDescription,
 	type ISupplyDataFunctions,
@@ -42,7 +42,7 @@ export class LmChatAwsBedrock implements INodeType {
 		// eslint-disable-next-line n8n-nodes-base/node-class-description-inputs-wrong-regular-node
 		inputs: [],
 		// eslint-disable-next-line n8n-nodes-base/node-class-description-outputs-wrong
-		outputs: [NodeConnectionType.AiLanguageModel],
+		outputs: [NodeConnectionTypes.AiLanguageModel],
 		outputNames: ['Model'],
 		credentials: [
 			{
@@ -56,7 +56,7 @@ export class LmChatAwsBedrock implements INodeType {
 			baseURL: '=https://bedrock.{{$credentials?.region ?? "eu-central-1"}}.amazonaws.com',
 		},
 		properties: [
-			getConnectionHintNoticeField([NodeConnectionType.AiChain, NodeConnectionType.AiChain]),
+			getConnectionHintNoticeField([NodeConnectionTypes.AiChain, NodeConnectionTypes.AiChain]),
 			{
 				displayName: 'Model',
 				name: 'model',

packages/@n8n/nodes-langchain/nodes/llms/LmChatAzureOpenAi/LmChatAzureOpenAi.node.ts

@@ -1,7 +1,7 @@
 /* eslint-disable n8n-nodes-base/node-dirname-against-convention */
 import { AzureChatOpenAI } from '@langchain/openai';
 import {
-	NodeConnectionType,
+	NodeConnectionTypes,
 	type INodeType,
 	type INodeTypeDescription,
 	type ISupplyDataFunctions,
@@ -42,7 +42,7 @@ export class LmChatAzureOpenAi implements INodeType {
 		// eslint-disable-next-line n8n-nodes-base/node-class-description-inputs-wrong-regular-node
 		inputs: [],
 		// eslint-disable-next-line n8n-nodes-base/node-class-description-outputs-wrong
-		outputs: [NodeConnectionType.AiLanguageModel],
+		outputs: [NodeConnectionTypes.AiLanguageModel],
 		outputNames: ['Model'],
 		credentials: [
 			{
@@ -51,7 +51,7 @@ export class LmChatAzureOpenAi implements INodeType {
 			},
 		],
 		properties: [
-			getConnectionHintNoticeField([NodeConnectionType.AiChain, NodeConnectionType.AiAgent]),
+			getConnectionHintNoticeField([NodeConnectionTypes.AiChain, NodeConnectionTypes.AiAgent]),
 			{
 				displayName:
 					'If using JSON response format, you must include word "json" in the prompt in your chain or agent. Also, make sure to select latest models released post November 2023.',

packages/@n8n/nodes-langchain/nodes/llms/LmChatDeepSeek/LmChatDeepSeek.node.ts

@@ -2,7 +2,7 @@
 
 import { ChatOpenAI, type ClientOptions } from '@langchain/openai';
 import {
-	NodeConnectionType,
+	NodeConnectionTypes,
 	type INodeType,
 	type INodeTypeDescription,
 	type ISupplyDataFunctions,
@@ -44,7 +44,7 @@ export class LmChatDeepSeek implements INodeType {
 		// eslint-disable-next-line n8n-nodes-base/node-class-description-inputs-wrong-regular-node
 		inputs: [],
 		// eslint-disable-next-line n8n-nodes-base/node-class-description-outputs-wrong
-		outputs: [NodeConnectionType.AiLanguageModel],
+		outputs: [NodeConnectionTypes.AiLanguageModel],
 		outputNames: ['Model'],
 		credentials: [
 			{
@@ -57,7 +57,7 @@ export class LmChatDeepSeek implements INodeType {
 			baseURL: '={{ $credentials?.url }}',
 		},
 		properties: [
-			getConnectionHintNoticeField([NodeConnectionType.AiChain, NodeConnectionType.AiAgent]),
+			getConnectionHintNoticeField([NodeConnectionTypes.AiChain, NodeConnectionTypes.AiAgent]),
 			{
 				displayName:
 					'If using JSON response format, you must include word "json" in the prompt in your chain or agent. Also, make sure to select latest models released post November 2023.',

packages/@n8n/nodes-langchain/nodes/llms/LmChatGoogleGemini/LmChatGoogleGemini.node.ts

@@ -1,7 +1,7 @@
 /* eslint-disable n8n-nodes-base/node-dirname-against-convention */
 import type { SafetySetting } from '@google/generative-ai';
 import { ChatGoogleGenerativeAI } from '@langchain/google-genai';
-import { NodeConnectionType } from 'n8n-workflow';
+import { NodeConnectionTypes } from 'n8n-workflow';
 import type {
 	NodeError,
 	INodeType,
@@ -52,7 +52,7 @@ export class LmChatGoogleGemini implements INodeType {
 		// eslint-disable-next-line n8n-nodes-base/node-class-description-inputs-wrong-regular-node
 		inputs: [],
 		// eslint-disable-next-line n8n-nodes-base/node-class-description-outputs-wrong
-		outputs: [NodeConnectionType.AiLanguageModel],
+		outputs: [NodeConnectionTypes.AiLanguageModel],
 		outputNames: ['Model'],
 		credentials: [
 			{
@@ -65,7 +65,7 @@ export class LmChatGoogleGemini implements INodeType {
 			baseURL: '={{ $credentials.host }}',
 		},
 		properties: [
-			getConnectionHintNoticeField([NodeConnectionType.AiChain, NodeConnectionType.AiAgent]),
+			getConnectionHintNoticeField([NodeConnectionTypes.AiChain, NodeConnectionTypes.AiAgent]),
 			{
 				displayName: 'Model',
 				name: 'modelName',

packages/@n8n/nodes-langchain/nodes/llms/LmChatGoogleVertex/LmChatGoogleVertex.node.ts

@@ -4,7 +4,7 @@ import { ProjectsClient } from '@google-cloud/resource-manager';
 import { ChatVertexAI } from '@langchain/google-vertexai';
 import { formatPrivateKey } from 'n8n-nodes-base/dist/utils/utilities';
 import {
-	NodeConnectionType,
+	NodeConnectionTypes,
 	type INodeType,
 	type INodeTypeDescription,
 	type ISupplyDataFunctions,
@@ -50,7 +50,7 @@ export class LmChatGoogleVertex implements INodeType {
 		// eslint-disable-next-line n8n-nodes-base/node-class-description-inputs-wrong-regular-node
 		inputs: [],
 		// eslint-disable-next-line n8n-nodes-base/node-class-description-outputs-wrong
-		outputs: [NodeConnectionType.AiLanguageModel],
+		outputs: [NodeConnectionTypes.AiLanguageModel],
 		outputNames: ['Model'],
 		credentials: [
 			{
@@ -59,7 +59,7 @@ export class LmChatGoogleVertex implements INodeType {
 			},
 		],
 		properties: [
-			getConnectionHintNoticeField([NodeConnectionType.AiChain, NodeConnectionType.AiAgent]),
+			getConnectionHintNoticeField([NodeConnectionTypes.AiChain, NodeConnectionTypes.AiAgent]),
 			{
 				displayName: 'Project ID',
 				name: 'projectId',

packages/@n8n/nodes-langchain/nodes/llms/LmChatGroq/LmChatGroq.node.ts

@@ -1,7 +1,7 @@
 /* eslint-disable n8n-nodes-base/node-dirname-against-convention */
 import { ChatGroq } from '@langchain/groq';
 import {
-	NodeConnectionType,
+	NodeConnectionTypes,
 	type INodeType,
 	type INodeTypeDescription,
 	type ISupplyDataFunctions,
@@ -42,7 +42,7 @@ export class LmChatGroq implements INodeType {
 		// eslint-disable-next-line n8n-nodes-base/node-class-description-inputs-wrong-regular-node
 		inputs: [],
 		// eslint-disable-next-line n8n-nodes-base/node-class-description-outputs-wrong
-		outputs: [NodeConnectionType.AiLanguageModel],
+		outputs: [NodeConnectionTypes.AiLanguageModel],
 		outputNames: ['Model'],
 		credentials: [
 			{
@@ -54,7 +54,7 @@ export class LmChatGroq implements INodeType {
 			baseURL: 'https://api.groq.com/openai/v1',
 		},
 		properties: [
-			getConnectionHintNoticeField([NodeConnectionType.AiChain, NodeConnectionType.AiChain]),
+			getConnectionHintNoticeField([NodeConnectionTypes.AiChain, NodeConnectionTypes.AiChain]),
 			{
 				displayName: 'Model',
 				name: 'model',

packages/@n8n/nodes-langchain/nodes/llms/LmChatMistralCloud/LmChatMistralCloud.node.ts

@@ -3,7 +3,7 @@
 import type { ChatMistralAIInput } from '@langchain/mistralai';
 import { ChatMistralAI } from '@langchain/mistralai';
 import {
-	NodeConnectionType,
+	NodeConnectionTypes,
 	type INodeType,
 	type INodeTypeDescription,
 	type ISupplyDataFunctions,
@@ -44,7 +44,7 @@ export class LmChatMistralCloud implements INodeType {
 		// eslint-disable-next-line n8n-nodes-base/node-class-description-inputs-wrong-regular-node
 		inputs: [],
 		// eslint-disable-next-line n8n-nodes-base/node-class-description-outputs-wrong
-		outputs: [NodeConnectionType.AiLanguageModel],
+		outputs: [NodeConnectionTypes.AiLanguageModel],
 		outputNames: ['Model'],
 		credentials: [
 			{
@@ -57,7 +57,7 @@ export class LmChatMistralCloud implements INodeType {
 			baseURL: 'https://api.mistral.ai/v1',
 		},
 		properties: [
-			getConnectionHintNoticeField([NodeConnectionType.AiChain, NodeConnectionType.AiAgent]),
+			getConnectionHintNoticeField([NodeConnectionTypes.AiChain, NodeConnectionTypes.AiAgent]),
 			{
 				displayName: 'Model',
 				name: 'model',

packages/@n8n/nodes-langchain/nodes/llms/LmChatOpenRouter/LmChatOpenRouter.node.ts

@@ -2,7 +2,7 @@
 
 import { ChatOpenAI, type ClientOptions } from '@langchain/openai';
 import {
-	NodeConnectionType,
+	NodeConnectionTypes,
 	type INodeType,
 	type INodeTypeDescription,
 	type ISupplyDataFunctions,
@@ -43,7 +43,7 @@ export class LmChatOpenRouter implements INodeType {
 		// eslint-disable-next-line n8n-nodes-base/node-class-description-inputs-wrong-regular-node
 		inputs: [],
 		// eslint-disable-next-line n8n-nodes-base/node-class-description-outputs-wrong
-		outputs: [NodeConnectionType.AiLanguageModel],
+		outputs: [NodeConnectionTypes.AiLanguageModel],
 		outputNames: ['Model'],
 		credentials: [
 			{
@@ -56,7 +56,7 @@ export class LmChatOpenRouter implements INodeType {
 			baseURL: '={{ $credentials?.url }}',
 		},
 		properties: [
-			getConnectionHintNoticeField([NodeConnectionType.AiChain, NodeConnectionType.AiAgent]),
+			getConnectionHintNoticeField([NodeConnectionTypes.AiChain, NodeConnectionTypes.AiAgent]),
 			{
 				displayName:
 					'If using JSON response format, you must include word "json" in the prompt in your chain or agent. Also, make sure to select latest models released post November 2023.',

packages/@n8n/nodes-langchain/nodes/llms/N8nLlmTracing.ts

@@ -11,7 +11,7 @@ import type { LLMResult } from '@langchain/core/outputs';
 import { encodingForModel } from '@langchain/core/utils/tiktoken';
 import { pick } from 'lodash';
 import type { IDataObject, ISupplyDataFunctions, JsonObject } from 'n8n-workflow';
-import { NodeConnectionType, NodeError, NodeOperationError } from 'n8n-workflow';
+import { NodeConnectionTypes, NodeError, NodeOperationError } from 'n8n-workflow';
 
 import { logAiEvent } from '@utils/helpers';
 
@@ -35,7 +35,7 @@ export class N8nLlmTracing extends BaseCallbackHandler {
 	// This is crucial for the handleLLMError handler to work correctly (it should be called before the error is propagated to the root node)
 	awaitHandlers = true;
 
-	connectionType = NodeConnectionType.AiLanguageModel;
+	connectionType = NodeConnectionTypes.AiLanguageModel;
 
 	promptTokensEstimate = 0;
 

packages/@n8n/nodes-langchain/nodes/memory/MemoryBufferWindow/MemoryBufferWindow.node.ts

@@ -2,7 +2,7 @@
 import type { BufferWindowMemoryInput } from 'langchain/memory';
 import { BufferWindowMemory } from 'langchain/memory';
 import {
-	NodeConnectionType,
+	NodeConnectionTypes,
 	type INodeType,
 	type INodeTypeDescription,
 	type ISupplyDataFunctions,
@@ -101,10 +101,10 @@ export class MemoryBufferWindow implements INodeType {
 		// eslint-disable-next-line n8n-nodes-base/node-class-description-inputs-wrong-regular-node
 		inputs: [],
 		// eslint-disable-next-line n8n-nodes-base/node-class-description-outputs-wrong
-		outputs: [NodeConnectionType.AiMemory],
+		outputs: [NodeConnectionTypes.AiMemory],
 		outputNames: ['Memory'],
 		properties: [
-			getConnectionHintNoticeField([NodeConnectionType.AiAgent]),
+			getConnectionHintNoticeField([NodeConnectionTypes.AiAgent]),
 			{
 				displayName: 'Session Key',
 				name: 'sessionKey',

packages/@n8n/nodes-langchain/nodes/memory/MemoryChatRetriever/MemoryChatRetriever.node.ts

@@ -2,7 +2,7 @@
 import type { BaseChatMemory } from '@langchain/community/memory/chat_memory';
 import type { BaseMessage } from '@langchain/core/messages';
 import {
-	NodeConnectionType,
+	NodeConnectionTypes,
 	type IDataObject,
 	type IExecuteFunctions,
 	type INodeExecutionData,
@@ -61,16 +61,16 @@ export class MemoryChatRetriever implements INodeType {
 		},
 		// eslint-disable-next-line n8n-nodes-base/node-class-description-inputs-wrong-regular-node
 		inputs: [
-			NodeConnectionType.Main,
+			NodeConnectionTypes.Main,
 			{
 				displayName: 'Memory',
 				maxConnections: 1,
-				type: NodeConnectionType.AiMemory,
+				type: NodeConnectionTypes.AiMemory,
 				required: true,
 			},
 		],
 		// eslint-disable-next-line n8n-nodes-base/node-class-description-outputs-wrong
-		outputs: [NodeConnectionType.Main],
+		outputs: [NodeConnectionTypes.Main],
 		properties: [
 			{
 				displayName: "This node is deprecated. Use 'Chat Memory Manager' node instead.",
@@ -91,7 +91,7 @@ export class MemoryChatRetriever implements INodeType {
 	async execute(this: IExecuteFunctions): Promise<INodeExecutionData[][]> {
 		this.logger.debug('Executing Chat Memory Retriever');
 
-		const memory = (await this.getInputConnectionData(NodeConnectionType.AiMemory, 0)) as
+		const memory = (await this.getInputConnectionData(NodeConnectionTypes.AiMemory, 0)) as
 			| BaseChatMemory
 			| undefined;
 		const simplifyOutput = this.getNodeParameter('simplifyOutput', 0) as boolean;

packages/@n8n/nodes-langchain/nodes/memory/MemoryManager/MemoryManager.node.ts

@@ -1,7 +1,7 @@
 /* eslint-disable n8n-nodes-base/node-dirname-against-convention */
 import type { BaseChatMemory } from '@langchain/community/memory/chat_memory';
 import { AIMessage, SystemMessage, HumanMessage, type BaseMessage } from '@langchain/core/messages';
-import { NodeConnectionType } from 'n8n-workflow';
+import { NodeConnectionTypes } from 'n8n-workflow';
 import type {
 	IDataObject,
 	IExecuteFunctions,
@@ -92,11 +92,11 @@ export class MemoryManager implements INodeType {
 		inputs: [
 			{
 				displayName: '',
-				type: NodeConnectionType.Main,
+				type: NodeConnectionTypes.Main,
 			},
 			{
 				displayName: 'Memory',
-				type: NodeConnectionType.AiMemory,
+				type: NodeConnectionTypes.AiMemory,
 				required: true,
 				maxConnections: 1,
 			},
@@ -105,7 +105,7 @@ export class MemoryManager implements INodeType {
 		outputs: [
 			{
 				displayName: '',
-				type: NodeConnectionType.Main,
+				type: NodeConnectionTypes.Main,
 			},
 		],
 		properties: [
@@ -297,7 +297,7 @@ export class MemoryManager implements INodeType {
 		const items = this.getInputData();
 		const mode = this.getNodeParameter('mode', 0, 'load') as 'load' | 'insert' | 'delete';
 		const memory = (await this.getInputConnectionData(
-			NodeConnectionType.AiMemory,
+			NodeConnectionTypes.AiMemory,
 			0,
 		)) as BaseChatMemory;
 

packages/@n8n/nodes-langchain/nodes/memory/MemoryMotorhead/MemoryMotorhead.node.ts

@@ -1,7 +1,7 @@
 /* eslint-disable n8n-nodes-base/node-dirname-against-convention */
 import { MotorheadMemory } from '@langchain/community/memory/motorhead_memory';
 import {
-	NodeConnectionType,
+	NodeConnectionTypes,
 	type INodeType,
 	type INodeTypeDescription,
 	type ISupplyDataFunctions,
@@ -42,7 +42,7 @@ export class MemoryMotorhead implements INodeType {
 		// eslint-disable-next-line n8n-nodes-base/node-class-description-inputs-wrong-regular-node
 		inputs: [],
 		// eslint-disable-next-line n8n-nodes-base/node-class-description-outputs-wrong
-		outputs: [NodeConnectionType.AiMemory],
+		outputs: [NodeConnectionTypes.AiMemory],
 		outputNames: ['Memory'],
 		credentials: [
 			{
@@ -51,7 +51,7 @@ export class MemoryMotorhead implements INodeType {
 			},
 		],
 		properties: [
-			getConnectionHintNoticeField([NodeConnectionType.AiAgent]),
+			getConnectionHintNoticeField([NodeConnectionTypes.AiAgent]),
 			{
 				displayName: 'Session ID',
 				name: 'sessionId',

packages/@n8n/nodes-langchain/nodes/memory/MemoryPostgresChat/MemoryPostgresChat.node.ts

@@ -10,7 +10,7 @@ import type {
 	INodeTypeDescription,
 	SupplyData,
 } from 'n8n-workflow';
-import { NodeConnectionType } from 'n8n-workflow';
+import { NodeConnectionTypes } from 'n8n-workflow';
 import type pg from 'pg';
 
 import { getSessionId } from '@utils/helpers';
@@ -58,10 +58,10 @@ export class MemoryPostgresChat implements INodeType {
 		// eslint-disable-next-line n8n-nodes-base/node-class-description-inputs-wrong-regular-node
 		inputs: [],
 		// eslint-disable-next-line n8n-nodes-base/node-class-description-outputs-wrong
-		outputs: [NodeConnectionType.AiMemory],
+		outputs: [NodeConnectionTypes.AiMemory],
 		outputNames: ['Memory'],
 		properties: [
-			getConnectionHintNoticeField([NodeConnectionType.AiAgent]),
+			getConnectionHintNoticeField([NodeConnectionTypes.AiAgent]),
 			sessionIdOption,
 			expressionSessionKeyProperty(1.2),
 			sessionKeyProperty,

packages/@n8n/nodes-langchain/nodes/memory/MemoryRedisChat/MemoryRedisChat.node.ts

@@ -8,7 +8,7 @@ import {
 	type INodeTypeDescription,
 	type ISupplyDataFunctions,
 	type SupplyData,
-	NodeConnectionType,
+	NodeConnectionTypes,
 } from 'n8n-workflow';
 import type { RedisClientOptions } from 'redis';
 import { createClient } from 'redis';
@@ -57,10 +57,10 @@ export class MemoryRedisChat implements INodeType {
 		// eslint-disable-next-line n8n-nodes-base/node-class-description-inputs-wrong-regular-node
 		inputs: [],
 		// eslint-disable-next-line n8n-nodes-base/node-class-description-outputs-wrong
-		outputs: [NodeConnectionType.AiMemory],
+		outputs: [NodeConnectionTypes.AiMemory],
 		outputNames: ['Memory'],
 		properties: [
-			getConnectionHintNoticeField([NodeConnectionType.AiAgent]),
+			getConnectionHintNoticeField([NodeConnectionTypes.AiAgent]),
 			{
 				displayName: 'Session Key',
 				name: 'sessionKey',

packages/@n8n/nodes-langchain/nodes/memory/MemoryXata/MemoryXata.node.ts

@@ -2,7 +2,7 @@
 import { XataChatMessageHistory } from '@langchain/community/stores/message/xata';
 import { BaseClient } from '@xata.io/client';
 import { BufferMemory, BufferWindowMemory } from 'langchain/memory';
-import { NodeConnectionType, NodeOperationError } from 'n8n-workflow';
+import { NodeConnectionTypes, NodeOperationError } from 'n8n-workflow';
 import type {
 	ISupplyDataFunctions,
 	INodeType,
@@ -50,7 +50,7 @@ export class MemoryXata implements INodeType {
 		// eslint-disable-next-line n8n-nodes-base/node-class-description-inputs-wrong-regular-node
 		inputs: [],
 		// eslint-disable-next-line n8n-nodes-base/node-class-description-outputs-wrong
-		outputs: [NodeConnectionType.AiMemory],
+		outputs: [NodeConnectionTypes.AiMemory],
 		outputNames: ['Memory'],
 		credentials: [
 			{
@@ -59,7 +59,7 @@ export class MemoryXata implements INodeType {
 			},
 		],
 		properties: [
-			getConnectionHintNoticeField([NodeConnectionType.AiAgent]),
+			getConnectionHintNoticeField([NodeConnectionTypes.AiAgent]),
 			{
 				displayName: 'Session ID',
 				name: 'sessionId',

packages/@n8n/nodes-langchain/nodes/memory/MemoryZep/MemoryZep.node.ts

@@ -5,7 +5,7 @@ import { ZepCloudMemory } from '@langchain/community/memory/zep_cloud';
 import type { InputValues, MemoryVariables } from '@langchain/core/memory';
 import type { BaseMessage } from '@langchain/core/messages';
 import {
-	NodeConnectionType,
+	NodeConnectionTypes,
 	type ISupplyDataFunctions,
 	type INodeType,
 	type INodeTypeDescription,
@@ -58,7 +58,7 @@ export class MemoryZep implements INodeType {
 		// eslint-disable-next-line n8n-nodes-base/node-class-description-inputs-wrong-regular-node
 		inputs: [],
 		// eslint-disable-next-line n8n-nodes-base/node-class-description-outputs-wrong
-		outputs: [NodeConnectionType.AiMemory],
+		outputs: [NodeConnectionTypes.AiMemory],
 		outputNames: ['Memory'],
 		credentials: [
 			{
@@ -67,7 +67,7 @@ export class MemoryZep implements INodeType {
 			},
 		],
 		properties: [
-			getConnectionHintNoticeField([NodeConnectionType.AiAgent]),
+			getConnectionHintNoticeField([NodeConnectionTypes.AiAgent]),
 			{
 				displayName: 'Only works with Zep Cloud and Community edition <= v0.27.2',
 				name: 'supportedVersions',

packages/@n8n/nodes-langchain/nodes/output_parser/OutputParserAutofixing/OutputParserAutofixing.node.ts

@@ -1,6 +1,6 @@
 import type { BaseLanguageModel } from '@langchain/core/language_models/base';
 import { PromptTemplate } from '@langchain/core/prompts';
-import { NodeConnectionType, NodeOperationError } from 'n8n-workflow';
+import { NodeConnectionTypes, NodeOperationError } from 'n8n-workflow';
 import type {
 	ISupplyDataFunctions,
 	INodeType,
@@ -47,18 +47,18 @@ export class OutputParserAutofixing implements INodeType {
 			{
 				displayName: 'Model',
 				maxConnections: 1,
-				type: NodeConnectionType.AiLanguageModel,
+				type: NodeConnectionTypes.AiLanguageModel,
 				required: true,
 			},
 			{
 				displayName: 'Output Parser',
 				maxConnections: 1,
 				required: true,
-				type: NodeConnectionType.AiOutputParser,
+				type: NodeConnectionTypes.AiOutputParser,
 			},
 		],
 		// eslint-disable-next-line n8n-nodes-base/node-class-description-outputs-wrong
-		outputs: [NodeConnectionType.AiOutputParser],
+		outputs: [NodeConnectionTypes.AiOutputParser],
 		outputNames: ['Output Parser'],
 		properties: [
 			{
@@ -68,7 +68,7 @@ export class OutputParserAutofixing implements INodeType {
 				type: 'notice',
 				default: '',
 			},
-			getConnectionHintNoticeField([NodeConnectionType.AiChain, NodeConnectionType.AiAgent]),
+			getConnectionHintNoticeField([NodeConnectionTypes.AiChain, NodeConnectionTypes.AiAgent]),
 			{
 				displayName: 'Options',
 				name: 'options',
@@ -95,11 +95,11 @@ export class OutputParserAutofixing implements INodeType {
 
 	async supplyData(this: ISupplyDataFunctions, itemIndex: number): Promise<SupplyData> {
 		const model = (await this.getInputConnectionData(
-			NodeConnectionType.AiLanguageModel,
+			NodeConnectionTypes.AiLanguageModel,
 			itemIndex,
 		)) as BaseLanguageModel;
 		const outputParser = (await this.getInputConnectionData(
-			NodeConnectionType.AiOutputParser,
+			NodeConnectionTypes.AiOutputParser,
 			itemIndex,
 		)) as N8nStructuredOutputParser;
 		const prompt = this.getNodeParameter('options.prompt', itemIndex, NAIVE_FIX_PROMPT) as string;

packages/@n8n/nodes-langchain/nodes/output_parser/OutputParserAutofixing/test/OutputParserAutofixing.node.test.ts

@@ -5,8 +5,12 @@ import { OutputParserException } from '@langchain/core/output_parsers';
 import type { MockProxy } from 'jest-mock-extended';
 import { mock } from 'jest-mock-extended';
 import { normalizeItems } from 'n8n-core';
-import type { ISupplyDataFunctions, IWorkflowDataProxyData } from 'n8n-workflow';
-import { ApplicationError, NodeConnectionType, NodeOperationError } from 'n8n-workflow';
+import type {
+	ISupplyDataFunctions,
+	IWorkflowDataProxyData,
+	NodeConnectionType,
+} from 'n8n-workflow';
+import { ApplicationError, NodeConnectionTypes, NodeOperationError } from 'n8n-workflow';
 
 import type {
 	N8nOutputFixingParser,
@@ -34,8 +38,8 @@ describe('OutputParserAutofixing', () => {
 		thisArg.addInputData.mockReturnValue({ index: 0 });
 		thisArg.addOutputData.mockReturnValue();
 		thisArg.getInputConnectionData.mockImplementation(async (type: NodeConnectionType) => {
-			if (type === NodeConnectionType.AiLanguageModel) return mockModel;
-			if (type === NodeConnectionType.AiOutputParser) return mockStructuredOutputParser;
+			if (type === NodeConnectionTypes.AiLanguageModel) return mockModel;
+			if (type === NodeConnectionTypes.AiOutputParser) return mockStructuredOutputParser;
 
 			throw new ApplicationError('Unexpected connection type');
 		});

packages/@n8n/nodes-langchain/nodes/output_parser/OutputParserItemList/OutputParserItemList.node.ts

@@ -1,6 +1,6 @@
 /* eslint-disable n8n-nodes-base/node-dirname-against-convention */
 import {
-	NodeConnectionType,
+	NodeConnectionTypes,
 	type INodeType,
 	type INodeTypeDescription,
 	type ISupplyDataFunctions,
@@ -39,10 +39,10 @@ export class OutputParserItemList implements INodeType {
 		// eslint-disable-next-line n8n-nodes-base/node-class-description-inputs-wrong-regular-node
 		inputs: [],
 		// eslint-disable-next-line n8n-nodes-base/node-class-description-outputs-wrong
-		outputs: [NodeConnectionType.AiOutputParser],
+		outputs: [NodeConnectionTypes.AiOutputParser],
 		outputNames: ['Output Parser'],
 		properties: [
-			getConnectionHintNoticeField([NodeConnectionType.AiChain, NodeConnectionType.AiAgent]),
+			getConnectionHintNoticeField([NodeConnectionTypes.AiChain, NodeConnectionTypes.AiAgent]),
 			{
 				displayName: 'Options',
 				name: 'options',

packages/@n8n/nodes-langchain/nodes/output_parser/OutputParserStructured/OutputParserStructured.node.ts

@@ -6,7 +6,7 @@ import {
 	type ISupplyDataFunctions,
 	type SupplyData,
 	NodeOperationError,
-	NodeConnectionType,
+	NodeConnectionTypes,
 } from 'n8n-workflow';
 import type { z } from 'zod';
 
@@ -46,10 +46,10 @@ export class OutputParserStructured implements INodeType {
 		// eslint-disable-next-line n8n-nodes-base/node-class-description-inputs-wrong-regular-node
 		inputs: [],
 		// eslint-disable-next-line n8n-nodes-base/node-class-description-outputs-wrong
-		outputs: [NodeConnectionType.AiOutputParser],
+		outputs: [NodeConnectionTypes.AiOutputParser],
 		outputNames: ['Output Parser'],
 		properties: [
-			getConnectionHintNoticeField([NodeConnectionType.AiChain, NodeConnectionType.AiAgent]),
+			getConnectionHintNoticeField([NodeConnectionTypes.AiChain, NodeConnectionTypes.AiAgent]),
 			{ ...schemaTypeField, displayOptions: { show: { '@version': [{ _cnd: { gte: 1.2 } }] } } },
 			{
 				...jsonSchemaExampleField,

packages/@n8n/nodes-langchain/nodes/retrievers/RetrieverContextualCompression/RetrieverContextualCompression.node.ts

@@ -5,7 +5,7 @@ import type { BaseRetriever } from '@langchain/core/retrievers';
 import { ContextualCompressionRetriever } from 'langchain/retrievers/contextual_compression';
 import { LLMChainExtractor } from 'langchain/retrievers/document_compressors/chain_extract';
 import {
-	NodeConnectionType,
+	NodeConnectionTypes,
 	type INodeType,
 	type INodeTypeDescription,
 	type ISupplyDataFunctions,
@@ -44,13 +44,13 @@ export class RetrieverContextualCompression implements INodeType {
 			{
 				displayName: 'Model',
 				maxConnections: 1,
-				type: NodeConnectionType.AiLanguageModel,
+				type: NodeConnectionTypes.AiLanguageModel,
 				required: true,
 			},
 			{
 				displayName: 'Retriever',
 				maxConnections: 1,
-				type: NodeConnectionType.AiRetriever,
+				type: NodeConnectionTypes.AiRetriever,
 				required: true,
 			},
 		],
@@ -58,7 +58,7 @@ export class RetrieverContextualCompression implements INodeType {
 			{
 				displayName: 'Retriever',
 				maxConnections: 1,
-				type: NodeConnectionType.AiRetriever,
+				type: NodeConnectionTypes.AiRetriever,
 			},
 		],
 		properties: [],
@@ -68,12 +68,12 @@ export class RetrieverContextualCompression implements INodeType {
 		this.logger.debug('Supplying data for Contextual Compression Retriever');
 
 		const model = (await this.getInputConnectionData(
-			NodeConnectionType.AiLanguageModel,
+			NodeConnectionTypes.AiLanguageModel,
 			itemIndex,
 		)) as BaseLanguageModel;
 
 		const baseRetriever = (await this.getInputConnectionData(
-			NodeConnectionType.AiRetriever,
+			NodeConnectionTypes.AiRetriever,
 			itemIndex,
 		)) as BaseRetriever;
 

packages/@n8n/nodes-langchain/nodes/retrievers/RetrieverMultiQuery/RetrieverMultiQuery.node.ts

@@ -4,7 +4,7 @@ import type { BaseLanguageModel } from '@langchain/core/language_models/base';
 import type { BaseRetriever } from '@langchain/core/retrievers';
 import { MultiQueryRetriever } from 'langchain/retrievers/multi_query';
 import {
-	NodeConnectionType,
+	NodeConnectionTypes,
 	type INodeType,
 	type INodeTypeDescription,
 	type ISupplyDataFunctions,
@@ -44,13 +44,13 @@ export class RetrieverMultiQuery implements INodeType {
 			{
 				displayName: 'Model',
 				maxConnections: 1,
-				type: NodeConnectionType.AiLanguageModel,
+				type: NodeConnectionTypes.AiLanguageModel,
 				required: true,
 			},
 			{
 				displayName: 'Retriever',
 				maxConnections: 1,
-				type: NodeConnectionType.AiRetriever,
+				type: NodeConnectionTypes.AiRetriever,
 				required: true,
 			},
 		],
@@ -58,7 +58,7 @@ export class RetrieverMultiQuery implements INodeType {
 			{
 				displayName: 'Retriever',
 				maxConnections: 1,
-				type: NodeConnectionType.AiRetriever,
+				type: NodeConnectionTypes.AiRetriever,
 			},
 		],
 		properties: [
@@ -89,12 +89,12 @@ export class RetrieverMultiQuery implements INodeType {
 		const options = this.getNodeParameter('options', itemIndex, {}) as { queryCount?: number };
 
 		const model = (await this.getInputConnectionData(
-			NodeConnectionType.AiLanguageModel,
+			NodeConnectionTypes.AiLanguageModel,
 			itemIndex,
 		)) as BaseLanguageModel;
 
 		const baseRetriever = (await this.getInputConnectionData(
-			NodeConnectionType.AiRetriever,
+			NodeConnectionTypes.AiRetriever,
 			itemIndex,
 		)) as BaseRetriever;
 

packages/@n8n/nodes-langchain/nodes/retrievers/RetrieverVectorStore/RetrieverVectorStore.node.ts

@@ -1,7 +1,7 @@
 /* eslint-disable n8n-nodes-base/node-dirname-against-convention */
 import type { VectorStore } from '@langchain/core/vectorstores';
 import {
-	NodeConnectionType,
+	NodeConnectionTypes,
 	type INodeType,
 	type INodeTypeDescription,
 	type ISupplyDataFunctions,
@@ -40,12 +40,12 @@ export class RetrieverVectorStore implements INodeType {
 			{
 				displayName: 'Vector Store',
 				maxConnections: 1,
-				type: NodeConnectionType.AiVectorStore,
+				type: NodeConnectionTypes.AiVectorStore,
 				required: true,
 			},
 		],
 		// eslint-disable-next-line n8n-nodes-base/node-class-description-outputs-wrong
-		outputs: [NodeConnectionType.AiRetriever],
+		outputs: [NodeConnectionTypes.AiRetriever],
 		outputNames: ['Retriever'],
 		properties: [
 			{
@@ -63,7 +63,7 @@ export class RetrieverVectorStore implements INodeType {
 
 		const topK = this.getNodeParameter('topK', itemIndex, 4) as number;
 		const vectorStore = (await this.getInputConnectionData(
-			NodeConnectionType.AiVectorStore,
+			NodeConnectionTypes.AiVectorStore,
 			itemIndex,
 		)) as VectorStore;
 

packages/@n8n/nodes-langchain/nodes/retrievers/RetrieverWorkflow/RetrieverWorkflow.node.ts

@@ -4,7 +4,7 @@ import { Document } from '@langchain/core/documents';
 import { BaseRetriever, type BaseRetrieverInput } from '@langchain/core/retrievers';
 import type { SetField, SetNodeOptions } from 'n8n-nodes-base/dist/nodes/Set/v2/helpers/interfaces';
 import * as manual from 'n8n-nodes-base/dist/nodes/Set/v2/manual.mode';
-import { NodeConnectionType, NodeOperationError } from 'n8n-workflow';
+import { NodeConnectionTypes, NodeOperationError } from 'n8n-workflow';
 import type {
 	IDataObject,
 	IExecuteWorkflowInfo,
@@ -66,7 +66,7 @@ export class RetrieverWorkflow implements INodeType {
 			{
 				displayName: 'Retriever',
 				maxConnections: 1,
-				type: NodeConnectionType.AiRetriever,
+				type: NodeConnectionTypes.AiRetriever,
 			},
 		],
 		properties: [

packages/@n8n/nodes-langchain/nodes/text_splitters/TextSplitterCharacterTextSplitter/TextSplitterCharacterTextSplitter.node.ts

@@ -2,7 +2,7 @@
 import type { CharacterTextSplitterParams } from '@langchain/textsplitters';
 import { CharacterTextSplitter } from '@langchain/textsplitters';
 import {
-	NodeConnectionType,
+	NodeConnectionTypes,
 	type INodeType,
 	type INodeTypeDescription,
 	type ISupplyDataFunctions,
@@ -40,10 +40,10 @@ export class TextSplitterCharacterTextSplitter implements INodeType {
 		// eslint-disable-next-line n8n-nodes-base/node-class-description-inputs-wrong-regular-node
 		inputs: [],
 		// eslint-disable-next-line n8n-nodes-base/node-class-description-outputs-wrong
-		outputs: [NodeConnectionType.AiTextSplitter],
+		outputs: [NodeConnectionTypes.AiTextSplitter],
 		outputNames: ['Text Splitter'],
 		properties: [
-			getConnectionHintNoticeField([NodeConnectionType.AiDocument]),
+			getConnectionHintNoticeField([NodeConnectionTypes.AiDocument]),
 			{
 				displayName: 'Separator',
 				name: 'separator',

packages/@n8n/nodes-langchain/nodes/text_splitters/TextSplitterRecursiveCharacterTextSplitter/TextSplitterRecursiveCharacterTextSplitter.node.ts

@@ -5,7 +5,7 @@ import type {
 } from '@langchain/textsplitters';
 import { RecursiveCharacterTextSplitter } from '@langchain/textsplitters';
 import {
-	NodeConnectionType,
+	NodeConnectionTypes,
 	type INodeType,
 	type INodeTypeDescription,
 	type ISupplyDataFunctions,
@@ -60,10 +60,10 @@ export class TextSplitterRecursiveCharacterTextSplitter implements INodeType {
 		// eslint-disable-next-line n8n-nodes-base/node-class-description-inputs-wrong-regular-node
 		inputs: [],
 		// eslint-disable-next-line n8n-nodes-base/node-class-description-outputs-wrong
-		outputs: [NodeConnectionType.AiTextSplitter],
+		outputs: [NodeConnectionTypes.AiTextSplitter],
 		outputNames: ['Text Splitter'],
 		properties: [
-			getConnectionHintNoticeField([NodeConnectionType.AiDocument]),
+			getConnectionHintNoticeField([NodeConnectionTypes.AiDocument]),
 			{
 				displayName: 'Chunk Size',
 				name: 'chunkSize',

packages/@n8n/nodes-langchain/nodes/text_splitters/TextSplitterTokenSplitter/TextSplitterTokenSplitter.node.ts

@@ -1,7 +1,7 @@
 /* eslint-disable n8n-nodes-base/node-dirname-against-convention */
 import { TokenTextSplitter } from '@langchain/textsplitters';
 import {
-	NodeConnectionType,
+	NodeConnectionTypes,
 	type INodeType,
 	type INodeTypeDescription,
 	type ISupplyDataFunctions,
@@ -39,10 +39,10 @@ export class TextSplitterTokenSplitter implements INodeType {
 		// eslint-disable-next-line n8n-nodes-base/node-class-description-inputs-wrong-regular-node
 		inputs: [],
 		// eslint-disable-next-line n8n-nodes-base/node-class-description-outputs-wrong
-		outputs: [NodeConnectionType.AiTextSplitter],
+		outputs: [NodeConnectionTypes.AiTextSplitter],
 		outputNames: ['Text Splitter'],
 		properties: [
-			getConnectionHintNoticeField([NodeConnectionType.AiDocument]),
+			getConnectionHintNoticeField([NodeConnectionTypes.AiDocument]),
 			{
 				displayName: 'Chunk Size',
 				name: 'chunkSize',

packages/@n8n/nodes-langchain/nodes/tools/ToolCalculator/ToolCalculator.node.ts

@@ -1,7 +1,7 @@
 /* eslint-disable n8n-nodes-base/node-dirname-against-convention */
 import { Calculator } from '@langchain/community/tools/calculator';
 import {
-	NodeConnectionType,
+	NodeConnectionTypes,
 	type INodeType,
 	type INodeTypeDescription,
 	type ISupplyDataFunctions,
@@ -40,9 +40,9 @@ export class ToolCalculator implements INodeType {
 		// eslint-disable-next-line n8n-nodes-base/node-class-description-inputs-wrong-regular-node
 		inputs: [],
 		// eslint-disable-next-line n8n-nodes-base/node-class-description-outputs-wrong
-		outputs: [NodeConnectionType.AiTool],
+		outputs: [NodeConnectionTypes.AiTool],
 		outputNames: ['Tool'],
-		properties: [getConnectionHintNoticeField([NodeConnectionType.AiAgent])],
+		properties: [getConnectionHintNoticeField([NodeConnectionTypes.AiAgent])],
 	};
 
 	async supplyData(this: ISupplyDataFunctions): Promise<SupplyData> {

packages/@n8n/nodes-langchain/nodes/tools/ToolCode/ToolCode.node.ts

@@ -13,7 +13,7 @@ import type {
 	ExecutionError,
 	IDataObject,
 } from 'n8n-workflow';
-import { jsonParse, NodeConnectionType, NodeOperationError } from 'n8n-workflow';
+import { jsonParse, NodeConnectionTypes, NodeOperationError } from 'n8n-workflow';
 
 import {
 	buildInputSchemaField,
@@ -54,10 +54,10 @@ export class ToolCode implements INodeType {
 		// eslint-disable-next-line n8n-nodes-base/node-class-description-inputs-wrong-regular-node
 		inputs: [],
 		// eslint-disable-next-line n8n-nodes-base/node-class-description-outputs-wrong
-		outputs: [NodeConnectionType.AiTool],
+		outputs: [NodeConnectionTypes.AiTool],
 		outputNames: ['Tool'],
 		properties: [
-			getConnectionHintNoticeField([NodeConnectionType.AiAgent]),
+			getConnectionHintNoticeField([NodeConnectionTypes.AiAgent]),
 			{
 				displayName:
 					'See an example of a conversational agent with custom tool written in JavaScript <a href="/templates/1963" target="_blank">here</a>.',
@@ -221,7 +221,7 @@ export class ToolCode implements INodeType {
 		};
 
 		const toolHandler = async (query: string | IDataObject): Promise<string> => {
-			const { index } = this.addInputData(NodeConnectionType.AiTool, [[{ json: { query } }]]);
+			const { index } = this.addInputData(NodeConnectionTypes.AiTool, [[{ json: { query } }]]);
 
 			let response: string = '';
 			let executionError: ExecutionError | undefined;
@@ -245,9 +245,9 @@ export class ToolCode implements INodeType {
 			}
 
 			if (executionError) {
-				void this.addOutputData(NodeConnectionType.AiTool, index, executionError);
+				void this.addOutputData(NodeConnectionTypes.AiTool, index, executionError);
 			} else {
-				void this.addOutputData(NodeConnectionType.AiTool, index, [[{ json: { response } }]]);
+				void this.addOutputData(NodeConnectionTypes.AiTool, index, [[{ json: { response } }]]);
 			}
 
 			return response;

packages/@n8n/nodes-langchain/nodes/tools/ToolHttpRequest/ToolHttpRequest.node.ts

@@ -8,7 +8,11 @@ import type {
 	IHttpRequestMethods,
 	IHttpRequestOptions,
 } from 'n8n-workflow';
-import { NodeConnectionType, NodeOperationError, tryToParseAlphanumericString } from 'n8n-workflow';
+import {
+	NodeConnectionTypes,
+	NodeOperationError,
+	tryToParseAlphanumericString,
+} from 'n8n-workflow';
 
 import { N8nTool } from '@utils/N8nTool';
 import { getConnectionHintNoticeField } from '@utils/sharedFields';
@@ -62,10 +66,10 @@ export class ToolHttpRequest implements INodeType {
 		// eslint-disable-next-line n8n-nodes-base/node-class-description-inputs-wrong-regular-node
 		inputs: [],
 		// eslint-disable-next-line n8n-nodes-base/node-class-description-outputs-wrong
-		outputs: [NodeConnectionType.AiTool],
+		outputs: [NodeConnectionTypes.AiTool],
 		outputNames: ['Tool'],
 		properties: [
-			getConnectionHintNoticeField([NodeConnectionType.AiAgent]),
+			getConnectionHintNoticeField([NodeConnectionTypes.AiAgent]),
 			{
 				displayName: 'Description',
 				name: 'toolDescription',

packages/@n8n/nodes-langchain/nodes/tools/ToolHttpRequest/utils.ts

@@ -14,7 +14,7 @@ import type {
 	NodeApiError,
 	ISupplyDataFunctions,
 } from 'n8n-workflow';
-import { NodeConnectionType, NodeOperationError, jsonParse } from 'n8n-workflow';
+import { NodeConnectionTypes, NodeOperationError, jsonParse } from 'n8n-workflow';
 import { z } from 'zod';
 
 import type {
@@ -585,7 +585,7 @@ export const configureToolFunction = (
 	optimizeResponse: (response: string) => string,
 ) => {
 	return async (query: string | IDataObject): Promise<string> => {
-		const { index } = ctx.addInputData(NodeConnectionType.AiTool, [[{ json: { query } }]]);
+		const { index } = ctx.addInputData(NodeConnectionTypes.AiTool, [[{ json: { query } }]]);
 
 		// Clone options and rawRequestOptions to avoid mutating the original objects
 		const options: IHttpRequestOptions | null = structuredClone(requestOptions);
@@ -792,9 +792,9 @@ export const configureToolFunction = (
 		}
 
 		if (executionError) {
-			void ctx.addOutputData(NodeConnectionType.AiTool, index, executionError as ExecutionError);
+			void ctx.addOutputData(NodeConnectionTypes.AiTool, index, executionError as ExecutionError);
 		} else {
-			void ctx.addOutputData(NodeConnectionType.AiTool, index, [[{ json: { response } }]]);
+			void ctx.addOutputData(NodeConnectionTypes.AiTool, index, [[{ json: { response } }]]);
 		}
 
 		return response;

packages/@n8n/nodes-langchain/nodes/tools/ToolSerpApi/ToolSerpApi.node.ts

@@ -1,7 +1,7 @@
 /* eslint-disable n8n-nodes-base/node-dirname-against-convention */
 import { SerpAPI } from '@langchain/community/tools/serpapi';
 import {
-	NodeConnectionType,
+	NodeConnectionTypes,
 	type INodeType,
 	type INodeTypeDescription,
 	type ISupplyDataFunctions,
@@ -39,7 +39,7 @@ export class ToolSerpApi implements INodeType {
 		// eslint-disable-next-line n8n-nodes-base/node-class-description-inputs-wrong-regular-node
 		inputs: [],
 		// eslint-disable-next-line n8n-nodes-base/node-class-description-outputs-wrong
-		outputs: [NodeConnectionType.AiTool],
+		outputs: [NodeConnectionTypes.AiTool],
 		outputNames: ['Tool'],
 		credentials: [
 			{
@@ -48,7 +48,7 @@ export class ToolSerpApi implements INodeType {
 			},
 		],
 		properties: [
-			getConnectionHintNoticeField([NodeConnectionType.AiAgent]),
+			getConnectionHintNoticeField([NodeConnectionTypes.AiAgent]),
 			{
 				displayName: 'Options',
 				name: 'options',

packages/@n8n/nodes-langchain/nodes/tools/ToolVectorStore/ToolVectorStore.node.ts

@@ -8,7 +8,7 @@ import type {
 	ISupplyDataFunctions,
 	SupplyData,
 } from 'n8n-workflow';
-import { NodeConnectionType } from 'n8n-workflow';
+import { NodeConnectionTypes } from 'n8n-workflow';
 
 import { logWrapper } from '@utils/logWrapper';
 import { getConnectionHintNoticeField } from '@utils/sharedFields';
@@ -44,21 +44,21 @@ export class ToolVectorStore implements INodeType {
 			{
 				displayName: 'Vector Store',
 				maxConnections: 1,
-				type: NodeConnectionType.AiVectorStore,
+				type: NodeConnectionTypes.AiVectorStore,
 				required: true,
 			},
 			{
 				displayName: 'Model',
 				maxConnections: 1,
-				type: NodeConnectionType.AiLanguageModel,
+				type: NodeConnectionTypes.AiLanguageModel,
 				required: true,
 			},
 		],
 		// eslint-disable-next-line n8n-nodes-base/node-class-description-outputs-wrong
-		outputs: [NodeConnectionType.AiTool],
+		outputs: [NodeConnectionTypes.AiTool],
 		outputNames: ['Tool'],
 		properties: [
-			getConnectionHintNoticeField([NodeConnectionType.AiAgent]),
+			getConnectionHintNoticeField([NodeConnectionTypes.AiAgent]),
 			{
 				displayName: 'Data Name',
 				name: 'name',
@@ -97,12 +97,12 @@ export class ToolVectorStore implements INodeType {
 		const topK = this.getNodeParameter('topK', itemIndex, 4) as number;
 
 		const vectorStore = (await this.getInputConnectionData(
-			NodeConnectionType.AiVectorStore,
+			NodeConnectionTypes.AiVectorStore,
 			itemIndex,
 		)) as VectorStore;
 
 		const llm = (await this.getInputConnectionData(
-			NodeConnectionType.AiLanguageModel,
+			NodeConnectionTypes.AiLanguageModel,
 			0,
 		)) as BaseLanguageModel;
 

packages/@n8n/nodes-langchain/nodes/tools/ToolWikipedia/ToolWikipedia.node.ts

@@ -1,7 +1,7 @@
 /* eslint-disable n8n-nodes-base/node-dirname-against-convention */
 import { WikipediaQueryRun } from '@langchain/community/tools/wikipedia_query_run';
 import {
-	NodeConnectionType,
+	NodeConnectionTypes,
 	type INodeType,
 	type INodeTypeDescription,
 	type ISupplyDataFunctions,
@@ -39,9 +39,9 @@ export class ToolWikipedia implements INodeType {
 		// eslint-disable-next-line n8n-nodes-base/node-class-description-inputs-wrong-regular-node
 		inputs: [],
 		// eslint-disable-next-line n8n-nodes-base/node-class-description-outputs-wrong
-		outputs: [NodeConnectionType.AiTool],
+		outputs: [NodeConnectionTypes.AiTool],
 		outputNames: ['Tool'],
-		properties: [getConnectionHintNoticeField([NodeConnectionType.AiAgent])],
+		properties: [getConnectionHintNoticeField([NodeConnectionTypes.AiAgent])],
 	};
 
 	async supplyData(this: ISupplyDataFunctions): Promise<SupplyData> {

packages/@n8n/nodes-langchain/nodes/tools/ToolWolframAlpha/ToolWolframAlpha.node.ts

@@ -1,7 +1,7 @@
 /* eslint-disable n8n-nodes-base/node-dirname-against-convention */
 import { WolframAlphaTool } from '@langchain/community/tools/wolframalpha';
 import {
-	NodeConnectionType,
+	NodeConnectionTypes,
 	type INodeType,
 	type INodeTypeDescription,
 	type ISupplyDataFunctions,
@@ -45,9 +45,9 @@ export class ToolWolframAlpha implements INodeType {
 		// eslint-disable-next-line n8n-nodes-base/node-class-description-inputs-wrong-regular-node
 		inputs: [],
 		// eslint-disable-next-line n8n-nodes-base/node-class-description-outputs-wrong
-		outputs: [NodeConnectionType.AiTool],
+		outputs: [NodeConnectionTypes.AiTool],
 		outputNames: ['Tool'],
-		properties: [getConnectionHintNoticeField([NodeConnectionType.AiAgent])],
+		properties: [getConnectionHintNoticeField([NodeConnectionTypes.AiAgent])],
 	};
 
 	async supplyData(this: ISupplyDataFunctions): Promise<SupplyData> {

packages/@n8n/nodes-langchain/nodes/tools/ToolWorkflow/v1/ToolWorkflowV1.node.ts

@@ -20,7 +20,7 @@ import type {
 	ITaskMetadata,
 	INodeTypeBaseDescription,
 } from 'n8n-workflow';
-import { NodeConnectionType, NodeOperationError, jsonParse } from 'n8n-workflow';
+import { NodeConnectionTypes, NodeOperationError, jsonParse } from 'n8n-workflow';
 
 import { versionDescription } from './versionDescription';
 import type { DynamicZodObject } from '../../../../types/zod.types';
@@ -148,7 +148,7 @@ export class ToolWorkflowV1 implements INodeType {
 			query: string | IDataObject,
 			runManager?: CallbackManagerForToolRun,
 		): Promise<string> => {
-			const { index } = this.addInputData(NodeConnectionType.AiTool, [[{ json: { query } }]]);
+			const { index } = this.addInputData(NodeConnectionTypes.AiTool, [[{ json: { query } }]]);
 
 			let response: string = '';
 			let executionError: ExecutionError | undefined;
@@ -189,12 +189,12 @@ export class ToolWorkflowV1 implements INodeType {
 			}
 
 			if (executionError) {
-				void this.addOutputData(NodeConnectionType.AiTool, index, executionError, metadata);
+				void this.addOutputData(NodeConnectionTypes.AiTool, index, executionError, metadata);
 			} else {
 				// Output always needs to be an object
 				// so we try to parse the response as JSON and if it fails we just return the string wrapped in an object
 				const json = jsonParse<IDataObject>(response, { fallbackValue: { response } });
-				void this.addOutputData(NodeConnectionType.AiTool, index, [[{ json }]], metadata);
+				void this.addOutputData(NodeConnectionTypes.AiTool, index, [[{ json }]], metadata);
 			}
 			return response;
 		};

packages/@n8n/nodes-langchain/nodes/tools/ToolWorkflow/v1/versionDescription.ts

@@ -1,7 +1,7 @@
 /* eslint-disable n8n-nodes-base/node-filename-against-convention */
 /* eslint-disable n8n-nodes-base/node-dirname-against-convention */
 import type { INodeTypeDescription } from 'n8n-workflow';
-import { NodeConnectionType } from 'n8n-workflow';
+import { NodeConnectionTypes } from 'n8n-workflow';
 
 import {
 	inputSchemaField,
@@ -36,10 +36,10 @@ export const versionDescription: INodeTypeDescription = {
 	// eslint-disable-next-line n8n-nodes-base/node-class-description-inputs-wrong-regular-node
 	inputs: [],
 	// eslint-disable-next-line n8n-nodes-base/node-class-description-outputs-wrong
-	outputs: [NodeConnectionType.AiTool],
+	outputs: [NodeConnectionTypes.AiTool],
 	outputNames: ['Tool'],
 	properties: [
-		getConnectionHintNoticeField([NodeConnectionType.AiAgent]),
+		getConnectionHintNoticeField([NodeConnectionTypes.AiAgent]),
 		{
 			displayName:
 				'See an example of a workflow to suggest meeting slots using AI <a href="/templates/1953" target="_blank">here</a>.',

packages/@n8n/nodes-langchain/nodes/tools/ToolWorkflow/v2/utils/WorkflowToolService.ts

@@ -21,7 +21,7 @@ import type {
 import {
 	generateZodSchema,
 	jsonParse,
-	NodeConnectionType,
+	NodeConnectionTypes,
 	NodeOperationError,
 	parseErrorMetadata,
 	traverseNodeParameters,
@@ -113,7 +113,7 @@ export class WorkflowToolService {
 				}
 
 				void context.addOutputData(
-					NodeConnectionType.AiTool,
+					NodeConnectionTypes.AiTool,
 					localRunIndex,
 					[responseData],
 					metadata,
@@ -126,7 +126,7 @@ export class WorkflowToolService {
 
 				const metadata = parseErrorMetadata(error);
 				void context.addOutputData(
-					NodeConnectionType.AiTool,
+					NodeConnectionTypes.AiTool,
 					localRunIndex,
 					executionError,
 					metadata,

packages/@n8n/nodes-langchain/nodes/tools/ToolWorkflow/v2/versionDescription.ts

@@ -1,6 +1,6 @@
 /* eslint-disable n8n-nodes-base/node-filename-against-convention */
 /* eslint-disable n8n-nodes-base/node-dirname-against-convention */
-import { NodeConnectionType, type INodeTypeDescription } from 'n8n-workflow';
+import { NodeConnectionTypes, type INodeTypeDescription } from 'n8n-workflow';
 
 import { getConnectionHintNoticeField } from '../../../../utils/sharedFields';
 
@@ -14,10 +14,10 @@ export const versionDescription: INodeTypeDescription = {
 	},
 	version: [2, 2.1],
 	inputs: [],
-	outputs: [NodeConnectionType.AiTool],
+	outputs: [NodeConnectionTypes.AiTool],
 	outputNames: ['Tool'],
 	properties: [
-		getConnectionHintNoticeField([NodeConnectionType.AiAgent]),
+		getConnectionHintNoticeField([NodeConnectionTypes.AiAgent]),
 		{
 			displayName:
 				'See an example of a workflow to suggest meeting slots using AI <a href="/templates/1953" target="_blank">here</a>.',

packages/@n8n/nodes-langchain/nodes/trigger/ChatTrigger/ChatTrigger.node.ts

@@ -1,6 +1,6 @@
 import type { BaseChatMemory } from '@langchain/community/memory/chat_memory';
 import { pick } from 'lodash';
-import { Node, NodeConnectionType } from 'n8n-workflow';
+import { Node, NodeConnectionTypes } from 'n8n-workflow';
 import type {
 	IDataObject,
 	IWebhookFunctions,
@@ -70,12 +70,12 @@ export class ChatTrigger extends Node {
 				{
 					displayName: 'Memory',
 					maxConnections: 1,
-					type: '${NodeConnectionType.AiMemory}',
+					type: '${NodeConnectionTypes.AiMemory}',
 					required: true,
 				}
 			];
 		 })() }}`,
-		outputs: [NodeConnectionType.Main],
+		outputs: [NodeConnectionTypes.Main],
 		credentials: [
 			{
 				// eslint-disable-next-line n8n-nodes-base/node-class-description-credentials-name-unsuffixed
@@ -554,7 +554,7 @@ ${cssVariables}
 
 		if (bodyData.action === 'loadPreviousSession') {
 			if (options?.loadPreviousSession === 'memory') {
-				const memory = (await ctx.getInputConnectionData(NodeConnectionType.AiMemory, 0)) as
+				const memory = (await ctx.getInputConnectionData(NodeConnectionTypes.AiMemory, 0)) as
 					| BaseChatMemory
 					| undefined;
 				const messages = ((await memory?.chatHistory.getMessages()) ?? [])

packages/@n8n/nodes-langchain/nodes/trigger/ManualChatTrigger/ManualChatTrigger.node.ts

@@ -3,7 +3,7 @@ import {
 	type INodeType,
 	type INodeTypeDescription,
 	type ITriggerResponse,
-	NodeConnectionType,
+	NodeConnectionTypes,
 } from 'n8n-workflow';
 
 export class ManualChatTrigger implements INodeType {
@@ -35,7 +35,7 @@ export class ManualChatTrigger implements INodeType {
 			},
 		},
 		inputs: [],
-		outputs: [NodeConnectionType.Main],
+		outputs: [NodeConnectionTypes.Main],
 		properties: [
 			{
 				displayName:

packages/@n8n/nodes-langchain/nodes/vector_store/VectorStoreInMemoryInsert/VectorStoreInMemoryInsert.node.ts

@@ -2,7 +2,7 @@
 import type { Embeddings } from '@langchain/core/embeddings';
 import type { Document } from 'langchain/document';
 import {
-	NodeConnectionType,
+	NodeConnectionTypes,
 	type INodeExecutionData,
 	type IExecuteFunctions,
 	type INodeType,
@@ -42,21 +42,21 @@ export class VectorStoreInMemoryInsert implements INodeType {
 		},
 		// eslint-disable-next-line n8n-nodes-base/node-class-description-inputs-wrong-regular-node
 		inputs: [
-			NodeConnectionType.Main,
+			NodeConnectionTypes.Main,
 			{
 				displayName: 'Document',
 				maxConnections: 1,
-				type: NodeConnectionType.AiDocument,
+				type: NodeConnectionTypes.AiDocument,
 				required: true,
 			},
 			{
 				displayName: 'Embedding',
 				maxConnections: 1,
-				type: NodeConnectionType.AiEmbedding,
+				type: NodeConnectionTypes.AiEmbedding,
 				required: true,
 			},
 		],
-		outputs: [NodeConnectionType.Main],
+		outputs: [NodeConnectionTypes.Main],
 		properties: [
 			{
 				displayName:
@@ -86,13 +86,13 @@ export class VectorStoreInMemoryInsert implements INodeType {
 	async execute(this: IExecuteFunctions): Promise<INodeExecutionData[][]> {
 		const items = this.getInputData(0);
 		const embeddings = (await this.getInputConnectionData(
-			NodeConnectionType.AiEmbedding,
+			NodeConnectionTypes.AiEmbedding,
 			0,
 		)) as Embeddings;
 
 		const memoryKey = this.getNodeParameter('memoryKey', 0) as string;
 		const clearStore = this.getNodeParameter('clearStore', 0) as boolean;
-		const documentInput = (await this.getInputConnectionData(NodeConnectionType.AiDocument, 0)) as
+		const documentInput = (await this.getInputConnectionData(NodeConnectionTypes.AiDocument, 0)) as
 			| N8nJsonLoader
 			| Array<Document<Record<string, unknown>>>;
 

packages/@n8n/nodes-langchain/nodes/vector_store/VectorStoreInMemoryLoad/VectorStoreInMemoryLoad.node.ts

@@ -1,7 +1,7 @@
 /* eslint-disable n8n-nodes-base/node-dirname-against-convention */
 import type { Embeddings } from '@langchain/core/embeddings';
 import {
-	NodeConnectionType,
+	NodeConnectionTypes,
 	type INodeType,
 	type INodeTypeDescription,
 	type ISupplyDataFunctions,
@@ -43,11 +43,11 @@ export class VectorStoreInMemoryLoad implements INodeType {
 			{
 				displayName: 'Embedding',
 				maxConnections: 1,
-				type: NodeConnectionType.AiEmbedding,
+				type: NodeConnectionTypes.AiEmbedding,
 				required: true,
 			},
 		],
-		outputs: [NodeConnectionType.AiVectorStore],
+		outputs: [NodeConnectionTypes.AiVectorStore],
 		outputNames: ['Vector Store'],
 		properties: [
 			{
@@ -63,7 +63,7 @@ export class VectorStoreInMemoryLoad implements INodeType {
 
 	async supplyData(this: ISupplyDataFunctions, itemIndex: number): Promise<SupplyData> {
 		const embeddings = (await this.getInputConnectionData(
-			NodeConnectionType.AiEmbedding,
+			NodeConnectionTypes.AiEmbedding,
 			itemIndex,
 		)) as Embeddings;
 

packages/@n8n/nodes-langchain/nodes/vector_store/VectorStorePineconeInsert/VectorStorePineconeInsert.node.ts

@@ -7,7 +7,7 @@ import {
 	type INodeType,
 	type INodeTypeDescription,
 	type INodeExecutionData,
-	NodeConnectionType,
+	NodeConnectionTypes,
 } from 'n8n-workflow';
 
 import type { N8nJsonLoader } from '@utils/N8nJsonLoader';
@@ -51,21 +51,21 @@ export class VectorStorePineconeInsert implements INodeType {
 			},
 		],
 		inputs: [
-			NodeConnectionType.Main,
+			NodeConnectionTypes.Main,
 			{
 				displayName: 'Document',
 				maxConnections: 1,
-				type: NodeConnectionType.AiDocument,
+				type: NodeConnectionTypes.AiDocument,
 				required: true,
 			},
 			{
 				displayName: 'Embedding',
 				maxConnections: 1,
-				type: NodeConnectionType.AiEmbedding,
+				type: NodeConnectionTypes.AiEmbedding,
 				required: true,
 			},
 		],
-		outputs: [NodeConnectionType.Main],
+		outputs: [NodeConnectionTypes.Main],
 		properties: [
 			pineconeIndexRLC,
 			{
@@ -106,12 +106,12 @@ export class VectorStorePineconeInsert implements INodeType {
 
 		const credentials = await this.getCredentials('pineconeApi');
 
-		const documentInput = (await this.getInputConnectionData(NodeConnectionType.AiDocument, 0)) as
+		const documentInput = (await this.getInputConnectionData(NodeConnectionTypes.AiDocument, 0)) as
 			| N8nJsonLoader
 			| Array<Document<Record<string, unknown>>>;
 
 		const embeddings = (await this.getInputConnectionData(
-			NodeConnectionType.AiEmbedding,
+			NodeConnectionTypes.AiEmbedding,
 			0,
 		)) as Embeddings;
 

packages/@n8n/nodes-langchain/nodes/vector_store/VectorStorePineconeLoad/VectorStorePineconeLoad.node.ts

@@ -3,7 +3,7 @@ import type { PineconeStoreParams } from '@langchain/pinecone';
 import { PineconeStore } from '@langchain/pinecone';
 import { Pinecone } from '@pinecone-database/pinecone';
 import {
-	NodeConnectionType,
+	NodeConnectionTypes,
 	type INodeType,
 	type INodeTypeDescription,
 	type ISupplyDataFunctions,
@@ -54,11 +54,11 @@ export class VectorStorePineconeLoad implements INodeType {
 			{
 				displayName: 'Embedding',
 				maxConnections: 1,
-				type: NodeConnectionType.AiEmbedding,
+				type: NodeConnectionTypes.AiEmbedding,
 				required: true,
 			},
 		],
-		outputs: [NodeConnectionType.AiVectorStore],
+		outputs: [NodeConnectionTypes.AiVectorStore],
 		outputNames: ['Vector Store'],
 		properties: [
 			pineconeIndexRLC,
@@ -95,7 +95,7 @@ export class VectorStorePineconeLoad implements INodeType {
 
 		const credentials = await this.getCredentials('pineconeApi');
 		const embeddings = (await this.getInputConnectionData(
-			NodeConnectionType.AiEmbedding,
+			NodeConnectionTypes.AiEmbedding,
 			itemIndex,
 		)) as Embeddings;
 

packages/@n8n/nodes-langchain/nodes/vector_store/VectorStoreSupabaseInsert/VectorStoreSupabaseInsert.node.ts

@@ -7,7 +7,7 @@ import {
 	type INodeType,
 	type INodeTypeDescription,
 	type INodeExecutionData,
-	NodeConnectionType,
+	NodeConnectionTypes,
 } from 'n8n-workflow';
 
 import type { N8nJsonLoader } from '@utils/N8nJsonLoader';
@@ -51,21 +51,21 @@ export class VectorStoreSupabaseInsert implements INodeType {
 			},
 		],
 		inputs: [
-			NodeConnectionType.Main,
+			NodeConnectionTypes.Main,
 			{
 				displayName: 'Document',
 				maxConnections: 1,
-				type: NodeConnectionType.AiDocument,
+				type: NodeConnectionTypes.AiDocument,
 				required: true,
 			},
 			{
 				displayName: 'Embedding',
 				maxConnections: 1,
-				type: NodeConnectionType.AiEmbedding,
+				type: NodeConnectionTypes.AiEmbedding,
 				required: true,
 			},
 		],
-		outputs: [NodeConnectionType.Main],
+		outputs: [NodeConnectionTypes.Main],
 		properties: [
 			{
 				displayName:
@@ -102,12 +102,12 @@ export class VectorStoreSupabaseInsert implements INodeType {
 		const queryName = this.getNodeParameter('queryName', 0) as string;
 		const credentials = await this.getCredentials('supabaseApi');
 
-		const documentInput = (await this.getInputConnectionData(NodeConnectionType.AiDocument, 0)) as
+		const documentInput = (await this.getInputConnectionData(NodeConnectionTypes.AiDocument, 0)) as
 			| N8nJsonLoader
 			| Array<Document<Record<string, unknown>>>;
 
 		const embeddings = (await this.getInputConnectionData(
-			NodeConnectionType.AiEmbedding,
+			NodeConnectionTypes.AiEmbedding,
 			0,
 		)) as Embeddings;
 		const client = createClient(credentials.host as string, credentials.serviceRole as string);

packages/@n8n/nodes-langchain/nodes/vector_store/VectorStoreSupabaseLoad/VectorStoreSupabaseLoad.node.ts

@@ -7,7 +7,7 @@ import {
 	type INodeTypeDescription,
 	type ISupplyDataFunctions,
 	type SupplyData,
-	NodeConnectionType,
+	NodeConnectionTypes,
 } from 'n8n-workflow';
 
 import { getMetadataFiltersValues } from '@utils/helpers';
@@ -54,11 +54,11 @@ export class VectorStoreSupabaseLoad implements INodeType {
 			{
 				displayName: 'Embedding',
 				maxConnections: 1,
-				type: NodeConnectionType.AiEmbedding,
+				type: NodeConnectionTypes.AiEmbedding,
 				required: true,
 			},
 		],
-		outputs: [NodeConnectionType.AiVectorStore],
+		outputs: [NodeConnectionTypes.AiVectorStore],
 		outputNames: ['Vector Store'],
 		properties: [
 			supabaseTableNameRLC,
@@ -93,7 +93,7 @@ export class VectorStoreSupabaseLoad implements INodeType {
 
 		const credentials = await this.getCredentials('supabaseApi');
 		const embeddings = (await this.getInputConnectionData(
-			NodeConnectionType.AiEmbedding,
+			NodeConnectionTypes.AiEmbedding,
 			0,
 		)) as Embeddings;
 

packages/@n8n/nodes-langchain/nodes/vector_store/VectorStoreZepInsert/VectorStoreZepInsert.node.ts

@@ -6,7 +6,7 @@ import {
 	type INodeType,
 	type INodeTypeDescription,
 	type INodeExecutionData,
-	NodeConnectionType,
+	NodeConnectionTypes,
 } from 'n8n-workflow';
 
 import type { N8nJsonLoader } from '@utils/N8nJsonLoader';
@@ -47,21 +47,21 @@ export class VectorStoreZepInsert implements INodeType {
 			},
 		],
 		inputs: [
-			NodeConnectionType.Main,
+			NodeConnectionTypes.Main,
 			{
 				displayName: 'Document',
 				maxConnections: 1,
-				type: NodeConnectionType.AiDocument,
+				type: NodeConnectionTypes.AiDocument,
 				required: true,
 			},
 			{
 				displayName: 'Embedding',
 				maxConnections: 1,
-				type: NodeConnectionType.AiEmbedding,
+				type: NodeConnectionTypes.AiEmbedding,
 				required: true,
 			},
 		],
-		outputs: [NodeConnectionType.Main],
+		outputs: [NodeConnectionTypes.Main],
 		properties: [
 			{
 				displayName: 'Collection Name',
@@ -117,12 +117,12 @@ export class VectorStoreZepInsert implements INodeType {
 			apiUrl: string;
 		}>('zepApi');
 
-		const documentInput = (await this.getInputConnectionData(NodeConnectionType.AiDocument, 0)) as
+		const documentInput = (await this.getInputConnectionData(NodeConnectionTypes.AiDocument, 0)) as
 			| N8nJsonLoader
 			| Array<Document<Record<string, unknown>>>;
 
 		const embeddings = (await this.getInputConnectionData(
-			NodeConnectionType.AiEmbedding,
+			NodeConnectionTypes.AiEmbedding,
 			0,
 		)) as Embeddings;
 

packages/@n8n/nodes-langchain/nodes/vector_store/VectorStoreZepLoad/VectorStoreZepLoad.node.ts

@@ -2,7 +2,7 @@ import type { IZepConfig } from '@langchain/community/vectorstores/zep';
 import { ZepVectorStore } from '@langchain/community/vectorstores/zep';
 import type { Embeddings } from '@langchain/core/embeddings';
 import {
-	NodeConnectionType,
+	NodeConnectionTypes,
 	type INodeType,
 	type INodeTypeDescription,
 	type ISupplyDataFunctions,
@@ -50,11 +50,11 @@ export class VectorStoreZepLoad implements INodeType {
 			{
 				displayName: 'Embedding',
 				maxConnections: 1,
-				type: NodeConnectionType.AiEmbedding,
+				type: NodeConnectionTypes.AiEmbedding,
 				required: true,
 			},
 		],
-		outputs: [NodeConnectionType.AiVectorStore],
+		outputs: [NodeConnectionTypes.AiVectorStore],
 		outputNames: ['Vector Store'],
 		properties: [
 			{
@@ -99,7 +99,7 @@ export class VectorStoreZepLoad implements INodeType {
 			apiUrl: string;
 		}>('zepApi');
 		const embeddings = (await this.getInputConnectionData(
-			NodeConnectionType.AiEmbedding,
+			NodeConnectionTypes.AiEmbedding,
 			0,
 		)) as Embeddings;
 

packages/@n8n/nodes-langchain/nodes/vector_store/shared/createVectorStoreNode/__tests__/utils.test.ts

@@ -1,6 +1,6 @@
 import type { VectorStore } from '@langchain/core/vectorstores';
 import type { INodeProperties } from 'n8n-workflow';
-import { NodeConnectionType } from 'n8n-workflow';
+import { NodeConnectionTypes } from 'n8n-workflow';
 
 import { DEFAULT_OPERATION_MODES } from '../constants';
 import type { VectorStoreNodeConstructorArgs, NodeOperationMode } from '../types';
@@ -178,8 +178,8 @@ describe('Vector Store Utilities', () => {
 			const retrieveOption = result.find((option) => option.value === 'retrieve');
 			const retrieveAsToolOption = result.find((option) => option.value === 'retrieve-as-tool');
 
-			expect(retrieveOption?.outputConnectionType).toBe(NodeConnectionType.AiVectorStore);
-			expect(retrieveAsToolOption?.outputConnectionType).toBe(NodeConnectionType.AiTool);
+			expect(retrieveOption?.outputConnectionType).toBe(NodeConnectionTypes.AiVectorStore);
+			expect(retrieveAsToolOption?.outputConnectionType).toBe(NodeConnectionTypes.AiTool);
 		});
 	});
 });

packages/@n8n/nodes-langchain/nodes/vector_store/shared/createVectorStoreNode/constants.ts

@@ -1,4 +1,4 @@
-import { NodeConnectionType } from 'n8n-workflow';
+import { NodeConnectionTypes } from 'n8n-workflow';
 import type { INodePropertyOptions } from 'n8n-workflow';
 
 import type { NodeOperationMode } from './types';
@@ -28,14 +28,14 @@ export const OPERATION_MODE_DESCRIPTIONS: INodePropertyOptions[] = [
 		value: 'retrieve',
 		description: 'Retrieve documents from vector store to be used as vector store with AI nodes',
 		action: 'Retrieve documents for Chain/Tool as Vector Store',
-		outputConnectionType: NodeConnectionType.AiVectorStore,
+		outputConnectionType: NodeConnectionTypes.AiVectorStore,
 	},
 	{
 		name: 'Retrieve Documents (As Tool for AI Agent)',
 		value: 'retrieve-as-tool',
 		description: 'Retrieve documents from vector store to be used as tool with AI nodes',
 		action: 'Retrieve documents for AI Agent as Tool',
-		outputConnectionType: NodeConnectionType.AiTool,
+		outputConnectionType: NodeConnectionTypes.AiTool,
 	},
 	{
 		name: 'Update Documents',

packages/@n8n/nodes-langchain/nodes/vector_store/shared/createVectorStoreNode/createVectorStoreNode.ts

@@ -2,7 +2,7 @@
 /* eslint-disable n8n-nodes-base/node-dirname-against-convention */
 import type { Embeddings } from '@langchain/core/embeddings';
 import type { VectorStore } from '@langchain/core/vectorstores';
-import { NodeConnectionType, NodeOperationError } from 'n8n-workflow';
+import { NodeConnectionTypes, NodeOperationError } from 'n8n-workflow';
 import type {
 	IExecuteFunctions,
 	INodeExecutionData,
@@ -66,18 +66,18 @@ export const createVectorStoreNode = <T extends VectorStore = VectorStore>(
 			inputs: `={{
 			((parameters) => {
 				const mode = parameters?.mode;
-				const inputs = [{ displayName: "Embedding", type: "${NodeConnectionType.AiEmbedding}", required: true, maxConnections: 1}]
+				const inputs = [{ displayName: "Embedding", type: "${NodeConnectionTypes.AiEmbedding}", required: true, maxConnections: 1}]
 
 				if (mode === 'retrieve-as-tool') {
 					return inputs;
 				}
 
 				if (['insert', 'load', 'update'].includes(mode)) {
-					inputs.push({ displayName: "", type: "${NodeConnectionType.Main}"})
+					inputs.push({ displayName: "", type: "${NodeConnectionTypes.Main}"})
 				}
 
 				if (['insert'].includes(mode)) {
-					inputs.push({ displayName: "Document", type: "${NodeConnectionType.AiDocument}", required: true, maxConnections: 1})
+					inputs.push({ displayName: "Document", type: "${NodeConnectionTypes.AiDocument}", required: true, maxConnections: 1})
 				}
 				return inputs
 			})($parameter)
@@ -87,13 +87,13 @@ export const createVectorStoreNode = <T extends VectorStore = VectorStore>(
 				const mode = parameters?.mode ?? 'retrieve';
 
 				if (mode === 'retrieve-as-tool') {
-					return [{ displayName: "Tool", type: "${NodeConnectionType.AiTool}"}]
+					return [{ displayName: "Tool", type: "${NodeConnectionTypes.AiTool}"}]
 				}
 
 				if (mode === 'retrieve') {
-					return [{ displayName: "Vector Store", type: "${NodeConnectionType.AiVectorStore}"}]
+					return [{ displayName: "Vector Store", type: "${NodeConnectionTypes.AiVectorStore}"}]
 				}
-				return [{ displayName: "", type: "${NodeConnectionType.Main}"}]
+				return [{ displayName: "", type: "${NodeConnectionTypes.Main}"}]
 			})($parameter)
 		}}`,
 			properties: [
@@ -106,7 +106,7 @@ export const createVectorStoreNode = <T extends VectorStore = VectorStore>(
 					options: getOperationModeOptions(args),
 				},
 				{
-					...getConnectionHintNoticeField([NodeConnectionType.AiRetriever]),
+					...getConnectionHintNoticeField([NodeConnectionTypes.AiRetriever]),
 					displayOptions: {
 						show: {
 							mode: ['retrieve'],
@@ -232,7 +232,7 @@ export const createVectorStoreNode = <T extends VectorStore = VectorStore>(
 
 			// Get the embeddings model connected to this node
 			const embeddings = (await this.getInputConnectionData(
-				NodeConnectionType.AiEmbedding,
+				NodeConnectionTypes.AiEmbedding,
 				0,
 			)) as Embeddings;
 
@@ -274,7 +274,7 @@ export const createVectorStoreNode = <T extends VectorStore = VectorStore>(
 
 			// Get the embeddings model connected to this node
 			const embeddings = (await this.getInputConnectionData(
-				NodeConnectionType.AiEmbedding,
+				NodeConnectionTypes.AiEmbedding,
 				0,
 			)) as Embeddings;
 

packages/@n8n/nodes-langchain/nodes/vector_store/shared/createVectorStoreNode/operations/__tests__/insertOperation.test.ts

@@ -6,7 +6,7 @@ import type { VectorStore } from '@langchain/core/vectorstores';
 import type { MockProxy } from 'jest-mock-extended';
 import { mock } from 'jest-mock-extended';
 import type { IExecuteFunctions, INodeExecutionData } from 'n8n-workflow';
-import { NodeConnectionType } from 'n8n-workflow';
+import { NodeConnectionTypes } from 'n8n-workflow';
 
 import { logAiEvent } from '@utils/helpers';
 import type { N8nBinaryLoader } from '@utils/N8nBinaryLoader';
@@ -137,7 +137,7 @@ describe('handleInsertOperation', () => {
 
 		// Should get document input from connection
 		expect(mockContext.getInputConnectionData).toHaveBeenCalledWith(
-			NodeConnectionType.AiDocument,
+			NodeConnectionTypes.AiDocument,
 			0,
 		);
 

packages/@n8n/nodes-langchain/nodes/vector_store/shared/createVectorStoreNode/operations/insertOperation.ts

@@ -2,7 +2,7 @@ import type { Document } from '@langchain/core/documents';
 import type { Embeddings } from '@langchain/core/embeddings';
 import type { VectorStore } from '@langchain/core/vectorstores';
 import type { IExecuteFunctions, INodeExecutionData } from 'n8n-workflow';
-import { NodeConnectionType } from 'n8n-workflow';
+import { NodeConnectionTypes } from 'n8n-workflow';
 
 import { logAiEvent } from '@utils/helpers';
 import type { N8nBinaryLoader } from '@utils/N8nBinaryLoader';
@@ -23,7 +23,7 @@ export async function handleInsertOperation<T extends VectorStore = VectorStore>
 	const nodeVersion = context.getNode().typeVersion;
 	// Get the input items and document data
 	const items = context.getInputData();
-	const documentInput = (await context.getInputConnectionData(NodeConnectionType.AiDocument, 0)) as
+	const documentInput = (await context.getInputConnectionData(NodeConnectionTypes.AiDocument, 0)) as
 		| N8nJsonLoader
 		| N8nBinaryLoader
 		| Array<Document<Record<string, unknown>>>;

packages/@n8n/nodes-langchain/nodes/vendors/OpenAi/actions/assistant/message.operation.ts

@@ -12,7 +12,7 @@ import type {
 } from 'n8n-workflow';
 import {
 	ApplicationError,
-	NodeConnectionType,
+	NodeConnectionTypes,
 	NodeOperationError,
 	updateDisplayOptions,
 } from 'n8n-workflow';
@@ -235,7 +235,7 @@ export async function execute(this: IExecuteFunctions, i: number): Promise<INode
 		nodeVersion >= 1.6 && this.getNodeParameter('memory', i) === 'connector';
 	const memory =
 		useMemoryConnector || nodeVersion < 1.6
-			? ((await this.getInputConnectionData(NodeConnectionType.AiMemory, 0)) as
+			? ((await this.getInputConnectionData(NodeConnectionTypes.AiMemory, 0)) as
 					| BufferWindowMemory
 					| undefined)
 			: undefined;

packages/@n8n/nodes-langchain/nodes/vendors/OpenAi/actions/versionDescription.ts

@@ -1,6 +1,6 @@
 /* eslint-disable n8n-nodes-base/node-filename-against-convention */
 import type { INodeInputConfiguration, INodeTypeDescription } from 'n8n-workflow';
-import { NodeConnectionType } from 'n8n-workflow';
+import { NodeConnectionTypes } from 'n8n-workflow';
 
 import * as assistant from './assistant';
 import * as audio from './audio';
@@ -50,25 +50,25 @@ const configureNodeInputs = (
 ) => {
 	if (resource === 'assistant' && operation === 'message') {
 		const inputs: INodeInputConfiguration[] = [
-			{ type: NodeConnectionType.Main },
-			{ type: NodeConnectionType.AiTool, displayName: 'Tools' },
+			{ type: NodeConnectionTypes.Main },
+			{ type: NodeConnectionTypes.AiTool, displayName: 'Tools' },
 		];
 		if (memory !== 'threadId') {
-			inputs.push({ type: NodeConnectionType.AiMemory, displayName: 'Memory', maxConnections: 1 });
+			inputs.push({ type: NodeConnectionTypes.AiMemory, displayName: 'Memory', maxConnections: 1 });
 		}
 		return inputs;
 	}
 	if (resource === 'text' && operation === 'message') {
 		if (hideTools === 'hide') {
-			return [NodeConnectionType.Main];
+			return [NodeConnectionTypes.Main];
 		}
 		return [
-			{ type: NodeConnectionType.Main },
-			{ type: NodeConnectionType.AiTool, displayName: 'Tools' },
+			{ type: NodeConnectionTypes.Main },
+			{ type: NodeConnectionTypes.AiTool, displayName: 'Tools' },
 		];
 	}
 
-	return [NodeConnectionType.Main];
+	return [NodeConnectionTypes.Main];
 };
 
 // eslint-disable-next-line n8n-nodes-base/node-class-description-missing-subtitle
@@ -98,7 +98,7 @@ export const versionDescription: INodeTypeDescription = {
 		},
 	},
 	inputs: `={{(${configureNodeInputs})($parameter.resource, $parameter.operation, $parameter.hideTools, $parameter.memory ?? undefined)}}`,
-	outputs: [NodeConnectionType.Main],
+	outputs: [NodeConnectionTypes.Main],
 	credentials: [
 		{
 			name: 'openAiApi',

packages/@n8n/nodes-langchain/utils/N8nTool.ts

@@ -2,7 +2,7 @@ import type { DynamicStructuredToolInput } from '@langchain/core/tools';
 import { DynamicStructuredTool, DynamicTool } from '@langchain/core/tools';
 import { StructuredOutputParser } from 'langchain/output_parsers';
 import type { ISupplyDataFunctions, IDataObject } from 'n8n-workflow';
-import { NodeConnectionType, jsonParse, NodeOperationError } from 'n8n-workflow';
+import { NodeConnectionTypes, jsonParse, NodeOperationError } from 'n8n-workflow';
 import type { ZodTypeAny } from 'zod';
 import { ZodBoolean, ZodNullable, ZodNumber, ZodObject, ZodOptional } from 'zod';
 
@@ -96,8 +96,8 @@ export class N8nTool extends DynamicStructuredTool {
 
 				return result;
 			} catch (e) {
-				const { index } = context.addInputData(NodeConnectionType.AiTool, [[{ json: { query } }]]);
-				void context.addOutputData(NodeConnectionType.AiTool, index, e);
+				const { index } = context.addInputData(NodeConnectionTypes.AiTool, [[{ json: { query } }]]);
+				void context.addOutputData(NodeConnectionTypes.AiTool, index, e);
 
 				return e.toString();
 			}

packages/@n8n/nodes-langchain/utils/helpers.ts

@@ -4,7 +4,7 @@ import type { BaseLLM } from '@langchain/core/language_models/llms';
 import type { BaseMessage } from '@langchain/core/messages';
 import type { Tool } from '@langchain/core/tools';
 import type { BaseChatMemory } from 'langchain/memory';
-import { NodeConnectionType, NodeOperationError, jsonStringify } from 'n8n-workflow';
+import { NodeConnectionTypes, NodeOperationError, jsonStringify } from 'n8n-workflow';
 import type {
 	AiEvent,
 	IDataObject,
@@ -190,7 +190,7 @@ export const getConnectedTools = async (
 	escapeCurlyBrackets: boolean = false,
 ) => {
 	const connectedTools =
-		((await ctx.getInputConnectionData(NodeConnectionType.AiTool, 0)) as Tool[]) || [];
+		((await ctx.getInputConnectionData(NodeConnectionTypes.AiTool, 0)) as Tool[]) || [];
 
 	if (!enforceUniqueNames) return connectedTools;
 

packages/@n8n/nodes-langchain/utils/logWrapper.ts

@@ -15,8 +15,9 @@ import type {
 	INodeExecutionData,
 	ISupplyDataFunctions,
 	ITaskMetadata,
+	NodeConnectionType,
 } from 'n8n-workflow';
-import { NodeOperationError, NodeConnectionType, parseErrorMetadata } from 'n8n-workflow';
+import { NodeOperationError, NodeConnectionTypes, parseErrorMetadata } from 'n8n-workflow';
 
 import { logAiEvent, isToolsInstance, isBaseChatMemory, isBaseChatMessageHistory } from './helpers';
 import { N8nBinaryLoader } from './N8nBinaryLoader';
@@ -116,7 +117,7 @@ export function logWrapper(
 			if (isBaseChatMemory(originalInstance)) {
 				if (prop === 'loadMemoryVariables' && 'loadMemoryVariables' in target) {
 					return async (values: InputValues): Promise<MemoryVariables> => {
-						connectionType = NodeConnectionType.AiMemory;
+						connectionType = NodeConnectionTypes.AiMemory;
 
 						const { index } = executeFunctions.addInputData(connectionType, [
 							[{ json: { action: 'loadMemoryVariables', values } }],
@@ -139,7 +140,7 @@ export function logWrapper(
 					};
 				} else if (prop === 'saveContext' && 'saveContext' in target) {
 					return async (input: InputValues, output: OutputValues): Promise<MemoryVariables> => {
-						connectionType = NodeConnectionType.AiMemory;
+						connectionType = NodeConnectionTypes.AiMemory;
 
 						const { index } = executeFunctions.addInputData(connectionType, [
 							[{ json: { action: 'saveContext', input, output } }],
@@ -168,7 +169,7 @@ export function logWrapper(
 			if (isBaseChatMessageHistory(originalInstance)) {
 				if (prop === 'getMessages' && 'getMessages' in target) {
 					return async (): Promise<BaseMessage[]> => {
-						connectionType = NodeConnectionType.AiMemory;
+						connectionType = NodeConnectionTypes.AiMemory;
 						const { index } = executeFunctions.addInputData(connectionType, [
 							[{ json: { action: 'getMessages' } }],
 						]);
@@ -189,7 +190,7 @@ export function logWrapper(
 					};
 				} else if (prop === 'addMessage' && 'addMessage' in target) {
 					return async (message: BaseMessage): Promise<void> => {
-						connectionType = NodeConnectionType.AiMemory;
+						connectionType = NodeConnectionTypes.AiMemory;
 						const payload = { action: 'addMessage', message };
 						const { index } = executeFunctions.addInputData(connectionType, [[{ json: payload }]]);
 
@@ -214,7 +215,7 @@ export function logWrapper(
 						query: string,
 						config?: Callbacks | BaseCallbackConfig,
 					): Promise<Document[]> => {
-						connectionType = NodeConnectionType.AiRetriever;
+						connectionType = NodeConnectionTypes.AiRetriever;
 						const { index } = executeFunctions.addInputData(connectionType, [
 							[{ json: { query, config } }],
 						]);
@@ -255,7 +256,7 @@ export function logWrapper(
 				// Docs -> Embeddings
 				if (prop === 'embedDocuments' && 'embedDocuments' in target) {
 					return async (documents: string[]): Promise<number[][]> => {
-						connectionType = NodeConnectionType.AiEmbedding;
+						connectionType = NodeConnectionTypes.AiEmbedding;
 						const { index } = executeFunctions.addInputData(connectionType, [
 							[{ json: { documents } }],
 						]);
@@ -276,7 +277,7 @@ export function logWrapper(
 				// Query -> Embeddings
 				if (prop === 'embedQuery' && 'embedQuery' in target) {
 					return async (query: string): Promise<number[]> => {
-						connectionType = NodeConnectionType.AiEmbedding;
+						connectionType = NodeConnectionTypes.AiEmbedding;
 						const { index } = executeFunctions.addInputData(connectionType, [
 							[{ json: { query } }],
 						]);
@@ -303,7 +304,7 @@ export function logWrapper(
 				// Process All
 				if (prop === 'processAll' && 'processAll' in target) {
 					return async (items: INodeExecutionData[]): Promise<number[]> => {
-						connectionType = NodeConnectionType.AiDocument;
+						connectionType = NodeConnectionTypes.AiDocument;
 						const { index } = executeFunctions.addInputData(connectionType, [items]);
 
 						const response = (await callMethodAsync.call(target, {
@@ -322,7 +323,7 @@ export function logWrapper(
 				// Process Each
 				if (prop === 'processItem' && 'processItem' in target) {
 					return async (item: INodeExecutionData, itemIndex: number): Promise<number[]> => {
-						connectionType = NodeConnectionType.AiDocument;
+						connectionType = NodeConnectionTypes.AiDocument;
 						const { index } = executeFunctions.addInputData(connectionType, [[item]]);
 
 						const response = (await callMethodAsync.call(target, {
@@ -346,7 +347,7 @@ export function logWrapper(
 			if (originalInstance instanceof TextSplitter) {
 				if (prop === 'splitText' && 'splitText' in target) {
 					return async (text: string): Promise<string[]> => {
-						connectionType = NodeConnectionType.AiTextSplitter;
+						connectionType = NodeConnectionTypes.AiTextSplitter;
 						const { index } = executeFunctions.addInputData(connectionType, [
 							[{ json: { textSplitter: text } }],
 						]);
@@ -370,7 +371,7 @@ export function logWrapper(
 			if (isToolsInstance(originalInstance)) {
 				if (prop === '_call' && '_call' in target) {
 					return async (query: string): Promise<string> => {
-						connectionType = NodeConnectionType.AiTool;
+						connectionType = NodeConnectionTypes.AiTool;
 						const { index } = executeFunctions.addInputData(connectionType, [
 							[{ json: { query } }],
 						]);
@@ -399,7 +400,7 @@ export function logWrapper(
 						filter?: BiquadFilterType | undefined,
 						_callbacks?: Callbacks | undefined,
 					): Promise<Document[]> => {
-						connectionType = NodeConnectionType.AiVectorStore;
+						connectionType = NodeConnectionTypes.AiVectorStore;
 						const { index } = executeFunctions.addInputData(connectionType, [
 							[{ json: { query, k, filter } }],
 						]);