Alpha Hub: Context Hub for research papers

CLI + MCP server for searching papers and building persistent knowledge.
Powered by alphaXiv for semantic search, paper reports, and PDF Q&A.

Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>

cli/src/commands/search.js

@@ -0,0 +1,37 @@
+import chalk from 'chalk';
+import { searchByEmbedding, searchByKeyword, disconnect } from '../lib/alphaxiv.js';
+import { output, error } from '../lib/output.js';
+
+function formatResults(data) {
+  const text = typeof data === 'string' ? data : JSON.stringify(data, null, 2);
+  console.log(text);
+}
+
+export function registerSearchCommand(program) {
+  program
+    .command('search <query>')
+    .description('Search papers via alphaXiv (semantic + keyword)')
+    .option('-m, --mode <mode>', 'Search mode: semantic, keyword, both', 'semantic')
+    .action(async (query, cmdOpts) => {
+      const opts = { ...program.opts(), ...cmdOpts };
+      try {
+        let results;
+        if (opts.mode === 'keyword') {
+          results = await searchByKeyword(query);
+        } else if (opts.mode === 'both') {
+          const [semantic, keyword] = await Promise.all([
+            searchByEmbedding(query),
+            searchByKeyword(query),
+          ]);
+          results = { semantic, keyword };
+        } else {
+          results = await searchByEmbedding(query);
+        }
+        output(results, formatResults, opts);
+      } catch (err) {
+        error(err.message, opts);
+      } finally {
+        await disconnect();
+      }
+    });
+}