fix(ai-native): simplify initial task loading state

Author: lulusir

packages/ai-native/__test__/browser/acp-queued-turns.test.tsx

@@ -66,7 +66,6 @@ function renderQueue(
     onImmediateSend?: jest.Mock;
     onEditorReady?: jest.Mock;
     onOpenCapacitySettings?: jest.Mock;
-    onCancelInitialStart?: jest.Mock;
   } = {},
 ) {
   const snapshot = { ...baseSnapshot, ...overrides };
@@ -101,34 +100,21 @@ function renderQueue(
         onImmediateSend={handlers.onImmediateSend}
         onEditorReady={handlers.onEditorReady}
         onOpenCapacitySettings={overrides.onOpenCapacitySettings}
-        onCancelInitialStart={overrides.onCancelInitialStart}
       />,
     );
   });
   return handlers;
 }
 
-it('shows cancellable first-launch progress at the 300ms and 8s thresholds', () => {
-  jest.useFakeTimers();
-  const onCancelInitialStart = jest.fn();
+it('shows a loading status while the first Task is launching', () => {
   renderQueue({
     activeSessionId: undefined,
     entries: [],
     initialStartPending: true,
-    onCancelInitialStart,
   });
 
-  expect(query('[data-testid="acp-task-launch-status"]')?.textContent).toContain('Preparing task');
-  expect(query('[data-testid="acp-task-launch-status"]')?.textContent).not.toContain('Starting task');
-  click('[data-testid="acp-task-launch-cancel"]');
-  expect(onCancelInitialStart).toHaveBeenCalledTimes(1);
-
-  act(() => jest.advanceTimersByTime(300));
   expect(query('[data-testid="acp-task-launch-status"]')?.textContent).toContain('Starting task');
-
-  act(() => jest.advanceTimersByTime(7700));
-  expect(query('[data-testid="acp-task-launch-status"]')?.textContent).toContain('taking longer than usual');
-  jest.useRealTimers();
+  expect(query('[data-testid="acp-task-launch-status"] button')).toBeNull();
 });
 
 it('renders paused state and resumes', () => {

packages/ai-native/docs/adr/0002-maintain-bounded-acp-standby-capacity.md

@@ -8,7 +8,7 @@ Foreground Task Launch remains cancellable while the Agent is being prepared. Ca
 
 A Task Launch commits only when ACP has accepted the first Prompt and established its request stream. Session creation before that point is temporary: failure or cancellation releases it and preserves the Draft, while errors after acceptance belong to the now-durable Agent Task. This prevents failed retries from creating orphan Sessions, duplicate Tasks, or duplicate first Prompts.
 
-While launch is in progress, Agentic Layout freezes the submitted Draft configuration and Prompt, presents a single user-facing task-starting state, and offers cancellation as the only foreground action. It avoids exposing warmup or process-initialization phases; cancellation restores the editable Draft and input focus, while a slow launch may add non-technical explanatory text without changing the committed submission snapshot.
+While launch is in progress, Agentic Layout freezes the submitted Draft configuration and Prompt and presents a single user-facing task-starting state without foreground actions. It avoids exposing warmup or process-initialization phases; internal cancellation still cleans up an abandoned launch without changing the committed submission snapshot.
 
 Project Addition alone does not change the standby target or start an ACP process. Task Draft Agent or Workspace changes are debounced and replace one target rather than accumulating warm processes; foreground submission flushes that debounce and immediately uses the latest Draft configuration.
 

packages/ai-native/src/browser/chat/AcpQueuedTurns.tsx

@@ -31,7 +31,6 @@ export interface AcpQueuedTurnsProps {
   onImmediateSend(id: string): void;
   onEditorReady(handle: ChatInputHandle | null): void;
   onOpenCapacitySettings?(): void;
-  onCancelInitialStart?(): void;
 }
 
 export function getAcpQueuedTurnPreview(message: string): string {
@@ -80,41 +79,11 @@ export const AcpQueuedTurns = ({
   onImmediateSend,
   onEditorReady,
   onOpenCapacitySettings,
-  onCancelInitialStart,
 }: AcpQueuedTurnsProps) => {
-  const [initialStartStage, setInitialStartStage] = React.useState<0 | 1 | 2>(0);
-
-  React.useEffect(() => {
-    if (!snapshot.initialStartPending) {
-      setInitialStartStage(0);
-      return undefined;
-    }
-    const startingTimer = setTimeout(() => setInitialStartStage(1), 300);
-    const slowTimer = setTimeout(() => setInitialStartStage(2), 8000);
-    return () => {
-      clearTimeout(startingTimer);
-      clearTimeout(slowTimer);
-    };
-  }, [snapshot.initialStartPending]);
-
   if (snapshot.initialStartPending) {
     return (
       <div className={styles.queued_turns_status} data-testid='acp-task-launch-status' role='status'>
-        <span>
-          {initialStartStage === 0
-            ? localize('aiNative.chat.acp.preparingTask', 'Preparing task…')
-            : initialStartStage === 1
-            ? localize('aiNative.chat.acp.startingTask', 'Starting task…')
-            : localize(
-                'aiNative.chat.acp.slowTaskStart',
-                'Task startup is taking longer than usual. You can continue waiting or cancel.',
-              )}
-        </span>
-        {onCancelInitialStart && (
-          <button data-testid='acp-task-launch-cancel' onClick={onCancelInitialStart} type='button'>
-            {localize('aiNative.chat.acp.cancelTaskStart', 'Cancel')}
-          </button>
-        )}
+        <span>{localize('aiNative.chat.acp.startingTask', 'Starting task…')}</span>
       </div>
     );
   }

packages/ai-native/src/browser/chat/chat.view.acp.tsx

@@ -1465,14 +1465,6 @@ export const AIChatViewACPContent = () => {
     void queuedTurns.resume();
   }, [aiChatService, queuedTurns]);
 
-  const handleCancelInitialStart = React.useCallback(() => {
-    void queuedTurns.cancelInitialStart().then((result) => {
-      if (result.accepted) {
-        mainInputHandleRef.current?.focus?.();
-      }
-    });
-  }, [queuedTurns]);
-
   const handleCloseChatView = React.useCallback(() => {
     const draft = chatInputRegistry.preserveActiveDraft() || aiChatService.getInputDraft();
     aiChatService.updateInputDraft(draft);
@@ -1933,7 +1925,6 @@ export const AIChatViewACPContent = () => {
                   AINativeSettingSectionsId.AcpThreadPoolSize,
                 )
               }
-              onCancelInitialStart={handleCancelInitialStart}
             />
             <div className={styles.header_operate}>
               {/* 定制需求。不需要透出shortcut*/}