Fix web_search: switch from Jina AI (now requires key) to DuckDuckGo HTML scraping

Made-with: Cursor

src/tools/search.ts

@@ -1,8 +1,8 @@
 import { registerTool } from './registry';
 
 /**
- * Web search via Jina AI's free search endpoint (s.jina.ai).
- * No API key required. Returns clean, AI-readable markdown results.
+ * Web search via DuckDuckGo HTML endpoint.
+ * No API key required. Scrapes result snippets and titles.
  * Atlas uses this for competitor research, market context, pricing models, etc.
  */
 registerTool({
@@ -22,13 +22,13 @@ registerTool({
         const query = String(args.query).trim();
         if (!query) return { error: 'No query provided' };
 
-        const url = `https://s.jina.ai/${encodeURIComponent(query)}`;
+        const url = `https://html.duckduckgo.com/html/?q=${encodeURIComponent(query)}`;
 
         try {
             const res = await fetch(url, {
                 headers: {
-                    'Accept': 'text/plain',
-                    'X-Return-Format': 'markdown',
+                    'User-Agent': 'Mozilla/5.0 (compatible; VIBN-Atlas/1.0)',
+                    'Accept': 'text/html',
                 },
                 signal: AbortSignal.timeout(15_000),
             });
@@ -37,15 +37,46 @@ registerTool({
                 return { error: `Search failed with status ${res.status}` };
             }
 
-            const text = await res.text();
+            const html = await res.text();
 
-            // Jina returns verbose results — truncate to avoid flooding the context window
-            const truncated = text.length > 6000 ? text.slice(0, 6000) + '\n\n[...results truncated]' : text;
+            // Extract result titles and snippets from DuckDuckGo HTML
+            const results: string[] = [];
+
+            // Match result titles
+            const titleMatches = html.matchAll(/class="result__a"[^>]*href="[^"]*"[^>]*>(.*?)<\/a>/gs);
+            const titles: string[] = [];
+            for (const m of titleMatches) {
+                const title = m[1].replace(/<[^>]+>/g, '').trim();
+                if (title) titles.push(title);
+            }
+
+            // Match result snippets
+            const snippetMatches = html.matchAll(/class="result__snippet"[^>]*>(.*?)<\/a>/gs);
+            const snippets: string[] = [];
+            for (const m of snippetMatches) {
+                const snippet = m[1].replace(/<[^>]+>/g, '').trim();
+                if (snippet) snippets.push(snippet);
+            }
+
+            // Combine up to 6 results
+            const count = Math.min(6, Math.max(titles.length, snippets.length));
+            for (let i = 0; i < count; i++) {
+                const title = titles[i] || '';
+                const snippet = snippets[i] || '';
+                if (title || snippet) {
+                    results.push(`**${title}**\n${snippet}`);
+                }
+            }
+
+            if (results.length === 0) {
+                return { error: 'No results found' };
+            }
+
+            const text = results.join('\n\n');
+            const truncated = text.length > 5000 ? text.slice(0, 5000) + '\n\n[...results truncated]' : text;
+
+            return { query, results: truncated };
 
-            return {
-                query,
-                results: truncated,
-            };
         } catch (err: unknown) {
             const message = err instanceof Error ? err.message : String(err);
             return { error: `Search request failed: ${message}` };