fix: adjust websearch tool to emphasize that it ISNT 2024, give more info as to current date

packages/opencode/src/tool/websearch.ts

@@ -36,8 +36,11 @@ interface McpSearchResponse {
   }
 }
 
-export const WebSearchTool = Tool.define("websearch", {
+export const WebSearchTool = Tool.define("websearch", async () => {
-  description: DESCRIPTION,
+  return {
+    get description() {
+      return DESCRIPTION.replace("{{date}}", new Date().toISOString().slice(0, 10))
+    },
     parameters: z.object({
       query: z.string().describe("Websearch query"),
       numResults: z.number().optional().describe("Number of search results to return (default: 8)"),
@@ -50,7 +53,9 @@ export const WebSearchTool = Tool.define("websearch", {
       type: z
         .enum(["auto", "fast", "deep"])
         .optional()
-      .describe("Search type - 'auto': balanced search (default), 'fast': quick results, 'deep': comprehensive search"),
+        .describe(
+          "Search type - 'auto': balanced search (default), 'fast': quick results, 'deep': comprehensive search",
+        ),
       contextMaxCharacters: z
         .number()
         .optional()
@@ -141,4 +146,5 @@ export const WebSearchTool = Tool.define("websearch", {
         throw error
       }
     },
+  }
 })

packages/opencode/src/tool/websearch.txt

@@ -9,3 +9,6 @@ Usage notes:
   - Search types: 'auto' (balanced), 'fast' (quick results), 'deep' (comprehensive search)
   - Configurable context length for optimal LLM integration
   - Domain filtering and advanced search options available
+
+Today's date is {{date}}. You MUST use this year when searching for recent information or current events
+- Example: If today is 2025-07-15 and the user asks for "latest AI news", search for "AI news 2025", NOT "AI news 2024"