feat(prompt): Use date, not time in prompts

src/lib/chains/imageSearchAgent.ts

@@ -8,6 +8,7 @@ import formatChatHistoryAsString from '../utils/formatHistory';
 import { BaseMessage } from '@langchain/core/messages';
 import LineOutputParser from '../outputParsers/lineOutputParser';
 import { searchSearxng } from '../searxng';
+import { formatDateForLLM } from '../utils';
 import type { BaseChatModel } from '@langchain/core/language_models/chat_models';
 
 const imageSearchChainPrompt = `
@@ -23,7 +24,7 @@ const imageSearchChainPrompt = `
 - The history is contained in the <conversation> tag after the <examples> below
 - The user question is contained in the <question> tag after the <examples> below
 - Output your answer in an <answer> tag
-- Current date & time in ISO format (UTC timezone) is: {date}
+- Current date is: {date}
 - Do not include any other text in your answer
   
 <examples>
@@ -99,7 +100,7 @@ const createImageSearchChain = (llm: BaseChatModel) => {
       query: (input: ImageSearchChainInput) => {
         return input.query;
       },
-      date: () => new Date().toISOString(),
+      date: () => formatDateForLLM(),
     }),
     PromptTemplate.fromTemplate(imageSearchChainPrompt),
     llm,

src/lib/chains/videoSearchAgent.ts

@@ -8,6 +8,7 @@ import formatChatHistoryAsString from '../utils/formatHistory';
 import { BaseMessage } from '@langchain/core/messages';
 import LineOutputParser from '../outputParsers/lineOutputParser';
 import { searchSearxng } from '../searxng';
+import { formatDateForLLM } from '../utils';
 import type { BaseChatModel } from '@langchain/core/language_models/chat_models';
 
 const VideoSearchChainPrompt = `
@@ -23,7 +24,7 @@ const VideoSearchChainPrompt = `
 - The history is contained in the <conversation> tag after the <examples> below
 - The user question is contained in the <question> tag after the <examples> below
 - Output your answer in an <answer> tag
-- Current date & time in ISO format (UTC timezone) is: {date}
+- Current date is: {date}
 - Do not include any other text in your answer
   
 <examples>
@@ -100,7 +101,7 @@ const createVideoSearchChain = (llm: BaseChatModel) => {
       query: (input: VideoSearchChainInput) => {
         return input.query;
       },
-      date: () => new Date().toISOString(),
+      date: () => formatDateForLLM(),
     }),
     PromptTemplate.fromTemplate(VideoSearchChainPrompt),
     llm,

src/lib/prompts/academicSearch.ts

@@ -65,5 +65,5 @@ export const academicSearchResponsePrompt = `
     {context}
     </context>
 
-    Current date & time in ISO format (UTC timezone) is: {date}.
+    Current date is: {date}.
 `;

src/lib/prompts/redditSearch.ts

@@ -65,5 +65,5 @@ export const redditSearchResponsePrompt = `
     {context}
     </context>
 
-    Current date & time in ISO format (UTC timezone) is: {date}.
+    Current date is: {date}.
 `;

src/lib/prompts/webSearch.ts

@@ -19,7 +19,7 @@ export const webSearchRetrieverPrompt = `
 - The history is contained in the <conversation> tag after the <examples> below
 - The user question is contained in the <question> tag after the <examples> below
 - You must always return the rephrased question inside an <answer> XML block, if there are no links in the follow-up question then don't insert a <links> XML block in your response
-- Current date & time in ISO format (UTC timezone) is: {date}
+- Current date is: {date}
 - Do not include any other text in your answer
 
 There are several examples attached for your reference inside the below examples XML block
@@ -212,5 +212,5 @@ export const webSearchResponsePrompt = `
     {context}
     </context>
 
-    Current date & time in ISO format (UTC timezone) is: {date}.
+    Current date is: {date}.
 `;

src/lib/prompts/wolframAlpha.ts

@@ -65,5 +65,5 @@ export const wolframAlphaSearchResponsePrompt = `
     {context}
     </context>
 
-    Current date & time in ISO format (UTC timezone) is: {date}.
+    Current date is: {date}.
 `;

src/lib/prompts/youtubeSearch.ts

@@ -65,5 +65,5 @@ export const youtubeSearchResponsePrompt = `
     {context}
     </context>
 
-    Current date & time in ISO format (UTC timezone) is: {date}.
+    Current date is: {date}.
 `;

src/lib/search/metaSearchAgent.ts

@@ -29,6 +29,7 @@ import {
 } from '../utils/documents';
 import formatChatHistoryAsString from '../utils/formatHistory';
 import { getModelName } from '../utils/modelUtils';
+import { formatDateForLLM } from '../utils';
 
 export interface MetaSearchAgentType {
   searchAndAnswer: (
@@ -309,7 +310,7 @@ class MetaSearchAgent implements MetaSearchAgentType {
         systemInstructions: () => systemInstructions,
         query: (input: BasicChainInput) => input.query,
         chat_history: (input: BasicChainInput) => input.chat_history,
-        date: () => new Date().toISOString(),
+        date: () => formatDateForLLM(),
         context: RunnableLambda.from(
           async (
             input: BasicChainInput,
@@ -331,7 +332,7 @@ class MetaSearchAgent implements MetaSearchAgentType {
             if (this.config.searchWeb) {
               const searchRetrieverChain =
                 await this.createSearchRetrieverChain(llm, emitter);
-              var date = new Date().toISOString();
+              var date = formatDateForLLM();
 
               const searchRetrieverResult = await searchRetrieverChain.invoke(
                 {

src/lib/utils.ts

@@ -25,3 +25,16 @@ export const formatTimeDifference = (
   else
     return `${Math.floor(diffInSeconds / 31536000)} year${Math.floor(diffInSeconds / 31536000) !== 1 ? 's' : ''}`;
 };
+
+/**
+ * Format a date for LLM prompts to only include month, day, and year
+ * @param date - The date to format (defaults to current date)
+ * @returns Formatted date string in "Month DD, YYYY" format
+ */
+export const formatDateForLLM = (date: Date = new Date()): string => {
+  return date.toLocaleDateString('en-US', {
+    year: 'numeric',
+    month: 'long',
+    day: 'numeric',
+  });
+};