refactor: streamline input validation and error handling in hooks

src/hooks/summary.ts

@@ -13,87 +13,31 @@ export interface StopInput {
  * Sends FINALIZE message to worker via Unix socket
  */
 export function summaryHook(input?: StopInput): void {
-  try {
-    // Log hook entry point
-    console.error('[claude-mem summary] Hook fired', {
-      input: input ? { session_id: input.session_id, cwd: input.cwd } : null
-    });
-
-    // Handle standalone execution (no input provided)
-    if (!input) {
-      console.log('No input provided - this script is designed to run as a Claude Code Stop hook');
-      console.log('\nExpected input format:');
-      console.log(JSON.stringify({
-        session_id: "string",
-        cwd: "string"
-      }, null, 2));
-      process.exit(0);
-    }
-
-    const { session_id } = input;
-    console.error('[claude-mem summary] Searching for active SDK session', { session_id });
-
-    // Find active SDK session
-    const db = new HooksDatabase();
-    const session = db.findActiveSDKSession(session_id);
-    db.close();
-
-    if (!session) {
-      // No active session - nothing to finalize
-      console.error('[claude-mem summary] No active SDK session found', { session_id });
-      console.log('{"continue": true, "suppressOutput": true}');
-      process.exit(0);
-    }
-
-    console.error('[claude-mem summary] Active SDK session found', {
-      session_id: session.id,
-      collection_name: session.collection_name,
-      worker_pid: session.worker_pid
-    });
-
-    // Get socket path
-    const socketPath = getWorkerSocketPath(session.id);
-
-    // Send FINALIZE message via Unix socket
-    const message = {
-      type: 'finalize'
-    };
-
-    console.error('[claude-mem summary] Attempting to send FINALIZE message to worker socket', {
-      socketPath,
-      message
-    });
-
-    const client = net.connect(socketPath, () => {
-      console.error('[claude-mem summary] Socket connection established, sending message');
-      client.write(JSON.stringify(message) + '\n');
-      client.end();
-    });
-
-    client.on('error', (err) => {
-      // Socket not available - worker may have already finished or crashed
-      console.error('[claude-mem summary] Socket error occurred', {
-        error: err.message,
-        code: (err as any).code,
-        socketPath
-      });
-      // Continue anyway, don't block Claude
-    });
-
-    client.on('close', () => {
-      console.error('[claude-mem summary] Socket connection closed successfully');
-      console.log('{"continue": true, "suppressOutput": true}');
-      process.exit(0);
-    });
-
-  } catch (error: any) {
-    // On error, don't block Claude Code
-    console.error('[claude-mem summary] Unexpected error in hook', {
-      error: error.message,
-      stack: error.stack,
-      name: error.name
-    });
-    console.log('{"continue": true, "suppressOutput": true}');
-    process.exit(0);
+  if (!input) {
+    throw new Error('summaryHook requires input');
   }
+
+  const { session_id } = input;
+  const db = new HooksDatabase();
+  const session = db.findActiveSDKSession(session_id);
+  db.close();
+
+  if (!session) {
+    console.log('{"continue": true, "suppressOutput": true}');
+    return;
+  }
+
+  const socketPath = getWorkerSocketPath(session.id);
+  const message = {
+    type: 'finalize'
+  };
+
+  const client = net.connect(socketPath, () => {
+    client.write(JSON.stringify(message) + '\n');
+    client.end();
+  });
+
+  client.on('close', () => {
+    console.log('{"continue": true, "suppressOutput": true}');
+  });
 }