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

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

@@ -0,0 +1,20 @@
+import type { StructuredTool } from 'langchain/tools';
+import { type IDataObject, type INodeExecutionData } from 'n8n-workflow';
+
+import { convertObjectBySchema } from './convertToSchema';
+
+export async function executeTool(
+	tool: StructuredTool,
+	query: string | object,
+): Promise<INodeExecutionData> {
+	let convertedQuery: string | object = query;
+	if ('schema' in tool && tool.schema) {
+		convertedQuery = convertObjectBySchema(query, tool.schema);
+	}
+
+	const result = await tool.invoke(convertedQuery);
+
+	return {
+		json: result as IDataObject,
+	};
+}