feat: add web search, file edit, MCP management, file refs, and /stop to CLI/TUI (#348)

packages/cli/src/tui/app.tsx

@@ -15,6 +15,7 @@ import { useConversations } from './hooks/use-conversations.js';
 import { useSearch } from './hooks/use-search.js';
 import { executeHelp, executeStatus, executeHistory, commandRegistry } from './commands/index.js';
 import { fetchConversationMessages } from './gateway-api.js';
+import { expandFileRefs, hasFileRefs, handleAttachCommand } from './file-ref.js';
 
 export interface TuiAppProps {
   gatewayUrl: string;
@@ -85,6 +86,36 @@ export function TuiApp({
   // combo is handled by the top-level useInput handler (e.g. Ctrl+T → 't').
   const ctrlJustFired = useRef(false);
 
+  // Wrap sendMessage to expand @file references before sending
+  const sendMessageWithFileRefs = useCallback(
+    (content: string) => {
+      if (!hasFileRefs(content)) {
+        socket.sendMessage(content);
+        return;
+      }
+      void expandFileRefs(content)
+        .then(({ expandedMessage, filesAttached, errors }) => {
+          for (const err of errors) {
+            socket.addSystemMessage(err);
+          }
+          if (filesAttached.length > 0) {
+            socket.addSystemMessage(
+              `📎 Attached ${filesAttached.length} file(s): ${filesAttached.join(', ')}`,
+            );
+          }
+          socket.sendMessage(expandedMessage);
+        })
+        .catch((err: unknown) => {
+          socket.addSystemMessage(
+            `File expansion failed: ${err instanceof Error ? err.message : String(err)}`,
+          );
+          // Send original message without expansion
+          socket.sendMessage(content);
+        });
+    },
+    [socket],
+  );
+
   const handleLocalCommand = useCallback(
     (parsed: ParsedCommand) => {
       switch (parsed.command) {
@@ -123,9 +154,36 @@ export function TuiApp({
               socket.addSystemMessage('Failed to create new conversation.');
             });
           break;
+        case 'attach': {
+          if (!parsed.args) {
+            socket.addSystemMessage('Usage: /attach <file-path>');
+            break;
+          }
+          void handleAttachCommand(parsed.args)
+            .then(({ content, error }) => {
+              if (error) {
+                socket.addSystemMessage(`Attach error: ${error}`);
+              } else if (content) {
+                // Send the file content as a user message
+                socket.sendMessage(content);
+              }
+            })
+            .catch((err: unknown) => {
+              socket.addSystemMessage(
+                `Attach failed: ${err instanceof Error ? err.message : String(err)}`,
+              );
+            });
+          break;
+        }
         case 'stop':
-          // Currently no stop mechanism exposed — show feedback
-          socket.addSystemMessage('Stop is not available for the current session.');
+          if (socket.isStreaming && socket.socketRef.current?.connected && socket.conversationId) {
+            socket.socketRef.current.emit('abort', {
+              conversationId: socket.conversationId,
+            });
+            socket.addSystemMessage('Abort signal sent.');
+          } else {
+            socket.addSystemMessage('No active stream to stop.');
+          }
           break;
         case 'cost': {
           const u = socket.tokenUsage;
@@ -348,7 +406,7 @@ export function TuiApp({
           }
           setTuiInput(val);
         }}
-        onSubmit={socket.sendMessage}
+        onSubmit={sendMessageWithFileRefs}
         onSystemMessage={socket.addSystemMessage}
         onLocalCommand={handleLocalCommand}
         onGatewayCommand={handleGatewayCommand}