feat(core): Implement partial execution for all tool nodes (#15168)

packages/@n8n/nodes-langchain/nodes/ToolExecutor/utils/convertToSchema.ts

@@ -0,0 +1,39 @@
+import { z } from 'zod';
+
+export const convertValueBySchema = (value: unknown, schema: any): unknown => {
+	if (!schema || !value) return value;
+
+	if (typeof value === 'string') {
+		if (schema instanceof z.ZodNumber) {
+			return Number(value);
+		} else if (schema instanceof z.ZodBoolean) {
+			return value.toLowerCase() === 'true';
+		} else if (schema instanceof z.ZodObject) {
+			try {
+				const parsed = JSON.parse(value);
+				return convertValueBySchema(parsed, schema);
+			} catch {
+				return value;
+			}
+		}
+	}
+
+	if (schema instanceof z.ZodObject && typeof value === 'object' && value !== null) {
+		const result: any = {};
+		for (const [key, val] of Object.entries(value)) {
+			const fieldSchema = schema.shape[key];
+			if (fieldSchema) {
+				result[key] = convertValueBySchema(val, fieldSchema);
+			} else {
+				result[key] = val;
+			}
+		}
+		return result;
+	}
+
+	return value;
+};
+
+export const convertObjectBySchema = (obj: any, schema: any): any => {
+	return convertValueBySchema(obj, schema);
+};