first commit

packages/@n8n/nodes-langchain/nodes/Guardrails/v2/GuardrailsV2.node.ts

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+import {
+	type INodeType,
+	type INodeTypeBaseDescription,
+	type INodeTypeDescription,
+	type IExecuteFunctions,
+	type INodeExecutionData,
+	NodeConnectionTypes,
+} from 'n8n-workflow';
+
+import { execute } from '../actions/execute';
+import { propertiesDescription } from '../description';
+import { configureNodeInputsV2 } from '../helpers/configureNodeInputs';
+
+export class GuardrailsV2 implements INodeType {
+	description: INodeTypeDescription;
+
+	constructor(baseDescription: INodeTypeBaseDescription) {
+		this.description = {
+			...baseDescription,
+			version: [2],
+			inputs: `={{(${configureNodeInputsV2})($parameter)}}`,
+			outputs: `={{
+		((parameters) => {
+			const operation = parameters.operation ?? 'classify';
+
+			if (operation === 'classify') {
+				return [{displayName: "Pass", type: "${NodeConnectionTypes.Main}"}, {displayName: "Fail", type: "${NodeConnectionTypes.Main}"}]
+			}
+
+			return [{ displayName: "", type: "${NodeConnectionTypes.Main}"}]
+		})($parameter)
+	}}`,
+			defaults: {
+				name: 'Guardrails',
+			},
+			properties: propertiesDescription,
+			// Builder hint for workflow-sdk type generation
+			// ai_languageModel is required only when LLM-based guardrails are used
+			builderHint: {
+				inputs: {
+					ai_languageModel: {
+						required: true,
+						displayOptions: {
+							show: {
+								// Model is required when ANY of these LLM guardrails exist
+								'/guardrails.(jailbreak|nsfw|topicalAlignment|custom)': [
+									{ _cnd: { exists: true } },
+								],
+							},
+						},
+					},
+				},
+				message:
+					'Classify operation has two outputs: output 0 (Pass) for items that passed all guardrail checks, output 1 (Fail) for items that failed. Use .output(index).to() to connect from a specific output. @example guardrails.output(0).to(passNode) and guardrails.output(1).to(failNode). Sanitize operation has only one output.',
+			},
+		};
+	}
+
+	async execute(this: IExecuteFunctions): Promise<INodeExecutionData[][]> {
+		return await execute.call(this);
+	}
+}