feat(editor): Improve how we show default Agent prompt and Memory session parameters (#11491)

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

@@ -1,4 +1,6 @@
 /* eslint-disable n8n-nodes-base/node-dirname-against-convention */
+import type { BufferWindowMemoryInput } from 'langchain/memory';
+import { BufferWindowMemory } from 'langchain/memory';
 import {
 	NodeConnectionType,
 	type INodeType,
@@ -6,12 +8,16 @@ import {
 	type ISupplyDataFunctions,
 	type SupplyData,
 } from 'n8n-workflow';
-import type { BufferWindowMemoryInput } from 'langchain/memory';
-import { BufferWindowMemory } from 'langchain/memory';
+
+import { getSessionId } from '../../../utils/helpers';
 import { logWrapper } from '../../../utils/logWrapper';
 import { getConnectionHintNoticeField } from '../../../utils/sharedFields';
-import { sessionIdOption, sessionKeyProperty, contextWindowLengthProperty } from '../descriptions';
-import { getSessionId } from '../../../utils/helpers';
+import {
+	sessionIdOption,
+	sessionKeyProperty,
+	contextWindowLengthProperty,
+	expressionSessionKeyProperty,
+} from '../descriptions';
 
 class MemoryChatBufferSingleton {
 	private static instance: MemoryChatBufferSingleton;
@@ -72,7 +78,7 @@ export class MemoryBufferWindow implements INodeType {
 		name: 'memoryBufferWindow',
 		icon: 'fa:database',
 		group: ['transform'],
-		version: [1, 1.1, 1.2],
+		version: [1, 1.1, 1.2, 1.3],
 		description: 'Stores in n8n memory, so no credentials required',
 		defaults: {
 			name: 'Window Buffer Memory',
@@ -129,6 +135,7 @@ export class MemoryBufferWindow implements INodeType {
 					},
 				},
 			},
+			expressionSessionKeyProperty(1.3),
 			sessionKeyProperty,
 			contextWindowLengthProperty,
 		],