diff --git a/apps/ai-game-creator-shell/src/view/project-development/chat/DirectProjectChatView.tsx b/apps/ai-game-creator-shell/src/view/project-development/chat/DirectProjectChatView.tsx
index f1c00df6d..94600a01a 100644
--- a/apps/ai-game-creator-shell/src/view/project-development/chat/DirectProjectChatView.tsx
+++ b/apps/ai-game-creator-shell/src/view/project-development/chat/DirectProjectChatView.tsx
@@ -272,6 +272,7 @@ export function DirectProjectChatView({
           pendingTurns={pendingTurns}
           composerNotice={composerNotice}
           busy={turnStatus.displayBusy}
+          canStopTurn={turnStatus.canStopTurn}
           turnCancelling={turnCancelling}
           onCancelPendingTurn={(clientTurnId) =>
             void cancelPendingTurn(clientTurnId)
diff --git a/apps/ai-game-creator-shell/src/view/project-development/chat/components/DirectProjectComposer/DirectProjectComposer.tsx b/apps/ai-game-creator-shell/src/view/project-development/chat/components/DirectProjectComposer/DirectProjectComposer.tsx
index 97e3ae34d..f151e8344 100644
--- a/apps/ai-game-creator-shell/src/view/project-development/chat/components/DirectProjectComposer/DirectProjectComposer.tsx
+++ b/apps/ai-game-creator-shell/src/view/project-development/chat/components/DirectProjectComposer/DirectProjectComposer.tsx
@@ -57,6 +57,7 @@ export function DirectProjectComposer({
   pendingTurns,
   composerNotice,
   busy,
+  canStopTurn,
   turnCancelling,
   onCancelPendingTurn,
   onCancelTurn,
@@ -72,7 +73,15 @@ export function DirectProjectComposer({
   attachmentsImporting: boolean;
   pendingTurns: readonly DirectPendingTurn[];
   composerNotice: string;
+  /** 「界面忙不忙」：三者并集，用来锁住模型 / 附件 / 语音这些与当前这轮冲突的控件。 */
   busy: boolean;
+  /**
+   * 「现在点终止有没有作用对象」（见 `useDirectProjectTurnStatus` 的 `canStopTurn`）。
+   *
+   * 与 `busy` 分开：队列非空也算忙，但待发消息不属于「终止」——按 `busy` 显示终止钮会得到一个
+   * 点了只会报「当前没有正在运行的回合」的按钮。发送钮 / 终止钮只按它换。
+   */
+  canStopTurn: boolean;
   turnCancelling: boolean;
   onCancelPendingTurn: (clientTurnId: string) => void;
   onCancelTurn: () => void;
@@ -159,7 +168,8 @@ export function DirectProjectComposer({
     },
     [onUploadFiles],
   );
-  // 这个按钮只在非 busy 分支出现（busy 时由 ComposerStopButton 接管），所以不再带忙态逻辑。
+  // 这个按钮只在"没有可终止对象"的分支出现（有的话由 ComposerStopButton 接管），
+  // 所以不再带忙态逻辑：队列里有待发消息时它照样在，用户能继续排。
   const submitButton = (
     <button
       type="submit"
@@ -246,7 +256,7 @@ export function DirectProjectComposer({
             onTranscript={(text) => composerRef.current?.insertText(text)}
             onNotice={setVoiceNotice}
           />
-          {busy ? (
+          {canStopTurn ? (
             <ComposerStopButton
               cancelling={turnCancelling}
               onCancel={onCancelTurn}
diff --git a/apps/ai-game-creator-shell/src/view/project-development/chat/controller/useDirectProjectChatController.ts b/apps/ai-game-creator-shell/src/view/project-development/chat/controller/useDirectProjectChatController.ts
index 4bbcc0f97..8135d5f0f 100644
--- a/apps/ai-game-creator-shell/src/view/project-development/chat/controller/useDirectProjectChatController.ts
+++ b/apps/ai-game-creator-shell/src/view/project-development/chat/controller/useDirectProjectChatController.ts
@@ -44,6 +44,7 @@ import type { DirectThreadHistorySlice } from '../generated/DirectThreadHistoryS
 import type { DirectThreadItem } from '../generated/DirectThreadItem';
 import { directHistoryAnchorGateToWaitFor } from '../history/directHistoryAnchorGate';
 import { readDirectHistoryPages } from '../history/directHistoryPaging';
+import { canStopDirectProjectTurn } from './useDirectProjectTurnStatus';
 import { useDirectThreadChatSubscription } from './useDirectThreadChatSubscription';
 
 export const MAX_CHAT_COMPOSER_ATTACHMENTS = 8;
@@ -645,10 +646,15 @@ export function useDirectProjectChatController({
   async function cancelTurn() {
     if (turnCancelling) return;
     const invoke = resolveTauriInvoke();
+    // 受理判据与终止钮的显示判据**同一个函数**（`useDirectProjectTurnStatus` 的 `canStopTurn`）：
+    // 两处各拼一遍布尔就会出现"按钮在、点了说没有回合"。
     if (
       !invoke ||
       !projectPath ||
-      (!commandInFlightRef.current && !currentTurnRunning)
+      !canStopDirectProjectTurn({
+        turnRunning: currentTurnRunning,
+        commandInFlight: commandInFlightRef.current,
+      })
     ) {
       onRuntimeError('当前没有正在运行的回合，无法终止。');
       return;
diff --git a/apps/ai-game-creator-shell/src/view/project-development/chat/controller/useDirectProjectTurnStatus.ts b/apps/ai-game-creator-shell/src/view/project-development/chat/controller/useDirectProjectTurnStatus.ts
index 86632de3e..92eb4d65c 100644
--- a/apps/ai-game-creator-shell/src/view/project-development/chat/controller/useDirectProjectTurnStatus.ts
+++ b/apps/ai-game-creator-shell/src/view/project-development/chat/controller/useDirectProjectTurnStatus.ts
@@ -24,6 +24,11 @@ import type {
  *   只要有一条成立就不能再接受新的发送。卡片读它而不是 `nativeRunning`：`turn.started`
  *   要等宿主应答返回才发出，只认原生真相会让模型首 token 之前那十来秒没有任何「正在处理」的
  *   交代（2026-09-24 口令）。
+ * - `canStopTurn`：**「现在点终止有没有作用对象」的唯一判据**（`nativeRunning || commandInFlight`）。
+ *   终止钮按它出现，命令受理时也按它把关：排队中还没放行的那几条不属于「终止」，`pendingCount`
+ *   不该把终止钮顶出来（那是一个点了只会报「当前没有正在运行的回合」的按钮）。注意它与
+ *   `displayBusy` 是两个问题：`displayBusy` 回答「界面能不能声称空闲」，`canStopTurn` 回答
+ *   「终止这一脚踢给谁」。
  * - `latestTurnState`：最新一轮在界面上的两态（投影结果）；没有回合时为 null。
  *
  * 约定：新增"忙/在跑"类判据一律先落进这里，不要在组件里再拼布尔。
@@ -36,9 +41,28 @@ export type DirectProjectTurnStatus = {
   commandInFlight: boolean;
   pendingCount: number;
   displayBusy: boolean;
+  canStopTurn: boolean;
   latestTurnState: DirectChatTurnState | null;
 };
 
+/**
+ * 「现在点终止有没有作用对象」的唯一判据。
+ *
+ * 只有两种状态里有东西可终止：宿主已经放行（`nativeRunning`）、命令还在飞（`commandInFlight`，
+ * 这一段结束前这一轮也可能已经成立）。待发消息属于「还没放行」，取消它走 chip 上的逐条入口，
+ * 不属于「终止」。视图决定终止钮显不显示、控制器决定受理不受理，都读这一个函数——两处口径必须
+ * 是同一份，否则就会出现「按钮在、点了说没有回合」。
+ */
+export function canStopDirectProjectTurn({
+  turnRunning,
+  commandInFlight,
+}: {
+  turnRunning: boolean;
+  commandInFlight: boolean;
+}): boolean {
+  return Boolean(turnRunning) || Boolean(commandInFlight);
+}
+
 export function deriveDirectProjectTurnStatus({
   turnRunning,
   commandInFlight,
@@ -59,6 +83,7 @@ export function deriveDirectProjectTurnStatus({
     commandInFlight: inFlight,
     pendingCount,
     displayBusy: nativeRunning || inFlight || pendingCount > 0,
+    canStopTurn: canStopDirectProjectTurn({ turnRunning, commandInFlight }),
     latestTurnState: latest ? latest.state : null,
   };
 }
diff --git a/apps/ai-game-creator-shell/tests/appSurface/chat-composer.suite.ts b/apps/ai-game-creator-shell/tests/appSurface/chat-composer.suite.ts
index 5f653440e..8731915e6 100644
--- a/apps/ai-game-creator-shell/tests/appSurface/chat-composer.suite.ts
+++ b/apps/ai-game-creator-shell/tests/appSurface/chat-composer.suite.ts
@@ -967,6 +967,34 @@ export function registerChatComposerControlTests() {
     });
   });
 
+  it('只有待发消息、没有回合在跑时不显示终止钮', async () => {
+    // 队列非空但既没有在飞的命令、也没有在跑的回合（比如宿主还没认领队首）：这时"终止"没有作用
+    // 对象，界面不该给一个点了只会报「当前没有正在运行的回合」的按钮。
+    const { surface, harness } = await openDirectCodexSurface({
+      enqueue_direct_codex_turn: (args) => {
+        harness.emitDirectThreadEvents({
+          type: 'queue.enqueued',
+          clientTurnId: String(args?.clientTurnId ?? ''),
+          userItem: args?.userItem,
+          at: 1,
+        });
+        return null;
+      },
+    });
+    const composer = within(surface).getByLabelText('陶泥儿对话内容');
+    await submitDirectTurn(surface, composer, '排着的那条');
+    const queue = await within(surface).findByLabelText('待发送消息队列');
+    await waitFor(() => {
+      expect(within(queue).getByText('排着的那条')).not.toBeNull();
+    });
+
+    // 队列非空仍然是"忙"（卡片照旧说正在处理），但发送入口是发送钮：用户可以继续排。
+    expect(within(surface).queryByRole('button', { name: '终止' })).toBeNull();
+    expect(
+      await within(surface).findByRole('button', { name: '发送' }),
+    ).not.toBeNull();
+  });
+
   it('queues the next message on the host while a turn is already running', async () => {
     // 回合已经在跑（比如刚切回工作台）：这时发送只做一件事——交给宿主入队，chip 由事件投影出来。
     let host: ReturnType<typeof hostQueue> | null = null;
diff --git a/apps/ai-game-creator-shell/tests/directProjectTurnStatus.test.ts b/apps/ai-game-creator-shell/tests/directProjectTurnStatus.test.ts
index 779b70314..891174b3c 100644
--- a/apps/ai-game-creator-shell/tests/directProjectTurnStatus.test.ts
+++ b/apps/ai-game-creator-shell/tests/directProjectTurnStatus.test.ts
@@ -1,6 +1,9 @@
 import { describe, expect, it } from 'vitest';
 
-import { deriveDirectProjectTurnStatus } from '../src/view/project-development/chat/controller/useDirectProjectTurnStatus';
+import {
+  canStopDirectProjectTurn,
+  deriveDirectProjectTurnStatus,
+} from '../src/view/project-development/chat/controller/useDirectProjectTurnStatus';
 import type { DirectPendingTurn } from '../src/view/project-development/chat/conversation/directPendingTurns';
 import type { DirectChatTurn } from '../src/view/project-development/chat/conversation/directTurnPresentation';
 
@@ -75,6 +78,39 @@ describe('DirectProject 回合状态派生', () => {
     expect(status.pendingCount).toBe(2);
   });
 
+  it('canStopTurn 只认"有作用对象"的两种状态：队列非空不算', () => {
+    // 队列非空仍然是 displayBusy（界面不假装空闲），但它不是终止的作用对象——终止钮不该出现，
+    // 否则点了只会报「当前没有正在运行的回合」。
+    const queuedOnly = deriveDirectProjectTurnStatus({
+      turnRunning: false,
+      commandInFlight: false,
+      pendingTurns: [pending('client-1')],
+      turns: [],
+    });
+    expect(queuedOnly.displayBusy).toBe(true);
+    expect(queuedOnly.canStopTurn).toBe(false);
+
+    // 宿主已经放行 / 命令还在飞：这两段里有东西可终止。
+    expect(
+      canStopDirectProjectTurn({ turnRunning: true, commandInFlight: false }),
+    ).toBe(true);
+    expect(
+      canStopDirectProjectTurn({ turnRunning: false, commandInFlight: true }),
+    ).toBe(true);
+    // 真空闲：终止钮与发送钮各自归位。
+    expect(
+      canStopDirectProjectTurn({ turnRunning: false, commandInFlight: false }),
+    ).toBe(false);
+    expect(
+      deriveDirectProjectTurnStatus({
+        turnRunning: false,
+        commandInFlight: true,
+        pendingTurns: [],
+        turns: [],
+      }).canStopTurn,
+    ).toBe(true);
+  });
+
   it('latestTurnState 取最新一轮的两态；没有回合时为 null', () => {
     expect(
       deriveDirectProjectTurnStatus({