Unify TUI slash commands and harden tool inventory responses

src/frontends/tui/minimal.test.ts

@@ -371,6 +371,32 @@ describe('MinimalTui backend command', () => {
     }
   });
 
+  it('prints tools output when /tools is invoked', async () => {
+    const mockSession = {
+      id: 'test',
+      getHistory: () => [],
+      addMessage: vi.fn(),
+      clear: vi.fn(),
+      replaceHistory: vi.fn(),
+    };
+    const onTools = vi.fn(() => 'Available tools (2):\n- file.read\n- council.run');
+    const logSpy = vi.spyOn(console, 'log').mockImplementation(() => {});
+    try {
+      const tui = new MinimalTui({
+        session: asSession(mockSession),
+        modelClient: asModelClient({}),
+        systemPrompt: 'test',
+        onTools,
+      });
+
+      await minimalTuiPrivates(tui).handleCommand({ type: 'tools' });
+      expect(onTools).toHaveBeenCalledOnce();
+      expect(logSpy).toHaveBeenCalledWith('Available tools (2):\n- file.read\n- council.run\n');
+    } finally {
+      logSpy.mockRestore();
+    }
+  });
+
   it('only renders tool activity when verbose mode is enabled', () => {
     const mockSession = {
       id: 'test',