fix(cli): keep agent list working-on column to one line

Author: codeaholicguy

packages/cli/src/__tests__/commands/agent.test.ts

@@ -125,6 +125,27 @@ describe('agent command', () => {
     expect(ui.warning).toHaveBeenCalledWith('1 agent(s) waiting for input.');
   });
 
+  it('truncates working-on text to first line', async () => {
+    jest.spyOn(Date, 'now').mockReturnValue(new Date('2026-02-26T10:00:00.000Z').getTime());
+    mockManager.listAgents.mockResolvedValue([
+      {
+        name: 'repo-a',
+        status: AgentStatus.RUNNING,
+        summary: `Investigating parser bug
+Waiting on user input`,
+        lastActive: new Date('2026-02-26T09:58:00.000Z'),
+        pid: 100,
+      },
+    ]);
+
+    const program = new Command();
+    registerAgentCommand(program);
+    await program.parseAsync(['node', 'test', 'agent', 'list']);
+
+    const tableArg: any = (ui.table as any).mock.calls[0][0];
+    expect(tableArg.rows[0][2]).toBe('Investigating parser bug');
+  });
+
   it('shows available agents when open target is not found', async () => {
     mockManager.listAgents.mockResolvedValue([
       { name: 'repo-a', status: AgentStatus.RUNNING, summary: 'A', lastActive: new Date(), pid: 1 },

packages/cli/src/commands/agent.ts

@@ -37,6 +37,11 @@ function formatRelativeTime(timestamp: Date): string {
     return `${diffDays}d ago`;
 }
 
+function formatWorkOn(summary?: string): string {
+    const firstLine = (summary ?? '').split(/\r?\n/, 1)[0] || '';
+    return firstLine || 'No active task';
+}
+
 export function registerAgentCommand(program: Command): void {
     const agentCommand = program
         .command('agent')
@@ -72,7 +77,7 @@ export function registerAgentCommand(program: Command): void {
                 const rows = agents.map(agent => [
                     agent.name,
                     formatStatus(agent.status),
-                    agent.summary || 'No active task',
+                    formatWorkOn(agent.summary),
                     formatRelativeTime(agent.lastActive)
                 ]);