diff --git a/scripts/permission-intercept-dom-regression.tsx b/scripts/permission-intercept-dom-regression.tsx
index e4c6197..90223e3 100644
--- a/scripts/permission-intercept-dom-regression.tsx
+++ b/scripts/permission-intercept-dom-regression.tsx
@@ -55,8 +55,7 @@ async function main(){
  id='e';status='pending';await render();await act(async()=>click('.conversation-intercept-card__rule-action'))
  check(document.querySelector('[role="status"]')?.textContent?.includes('未提供命中规则详情'),'missing rule explanation explicit')
  // Exercise the real composer with the real approval surface, not a skeleton.
- let session='session-a', active=true, sends=0, stops=0, changes=0, stopFails=false, request='request-1', stopPending=false
- let rejectStop!: (error: Error)=>void
+ let session='session-a', active=true, sends=0, stops=0, changes=0, stopFails=false, request='request-1'
  let settled: 'answered'|'rejected'|undefined
  const draft='preserved draft'
  const attachments=[{id:'attachment-a',name:'a.txt',mimeType:'text/plain',size:1}]
@@ -65,7 +64,7 @@ async function main(){
  const renderComposer=()=>act(async()=>{
    const composition=composeComposer({interaction:active?{id:session,kind:'approval',status:'pending'}:null,queueCount:2,running:true})
    root.render(<ComposerControls key={session} sessionId={session} value={draft} onChange={()=>{changes++}} onSend={()=>{sends++}}
-     attachments={attachments} resources={resources} quotes={quotes} onStop={()=>{stops++;if(stopFails)throw new Error('stop fixture failed');if(stopPending)return new Promise<void>((_yes,no)=>{rejectStop=no})}}
+     attachments={attachments} resources={resources} quotes={quotes} onStop={async()=>{stops++;if(stopFails)throw new Error('stop fixture failed')}}
      queueSlot={composition.queue.visible?<div data-queue="true">two queued messages</div>:undefined}
      approvalKey={request} approvalSlot={!composition.input.visible?<PermissionConfirm pendingId={session} toolName="Bash" options={options} resolve={pending} reject={async()=>{declined++}} onDecisionComplete={decision=>{settled=decision}}/>:undefined}/>)
  })
@@ -75,6 +74,8 @@ async function main(){
  check(getComputedStyle(stack).display==='none','composer CSS removes the normal input from layout during approval')
  check(document.querySelectorAll('[data-composer-approval] [role="dialog"]').length===1,'one bottom approval surface')
  check(!document.querySelector('.wb-composer__toolbar'),'normal toolbar and send controls removed during approval')
+ check(!document.querySelector('button[aria-label="停止当前运行"],button[aria-label="停止"],button[aria-label="发送"],.wb-composer__approval-stop'),'approval takeover has no standalone stop or send button even with onStop supplied')
+ check(document.querySelector('[data-composer-approval]')?.children.length===1,'bottom approval surface contains only the approval card')
  check(!document.querySelector('[data-queue]'),'queue hidden without deleting queue state')
  const editor=stack.querySelector<HTMLElement>('[contenteditable]')!
  check(editor?.getAttribute('contenteditable')==='false','rich editor disabled during approval')
@@ -99,18 +100,21 @@ async function main(){
  active=true;await renderComposer();await act(async()=>click('[data-option-id="once"]'));const staleResolve=resolve
  session='session-b';active=false;settled=undefined;await renderComposer();await act(async()=>staleResolve())
  check(!document.querySelector('[data-composer-approval]')&&settled===undefined,'session switch unmounts old request and ignores its late result')
- active=true;stopFails=true;await renderComposer();await act(async()=>click('.wb-composer__approval-stop'))
- check(document.querySelector('[data-composer-approval] [role="alert"]')?.textContent?.includes('stop fixture failed'),'failed cancellation visible in approval surface')
- request='request-2';stopFails=false;await renderComposer()
- check(!document.querySelector('[data-composer-approval] [role="alert"]'),'next request clears previous cancellation failure')
- await act(async()=>click('.wb-composer__approval-stop'))
- check(!document.querySelector('[data-composer-approval] [role="alert"]'),'cancellation retry clears error')
- check(stops===2,'stop remains reachable independently of normal send')
- stopPending=true;await renderComposer();await act(async()=>click('.wb-composer__approval-stop'))
- check(document.querySelector<HTMLButtonElement>('.wb-composer__approval-stop')?.disabled,'pending stop disabled against duplicate cancellation')
- request='request-3';stopPending=false;await renderComposer();await act(async()=>rejectStop(new Error('obsolete stop failure')))
- check(!document.querySelector('[data-composer-approval] [role="alert"]')&&!document.querySelector<HTMLButtonElement>('.wb-composer__approval-stop')?.disabled,'late previous-request cancellation cannot alter new request')
- active=false;await renderComposer();check(!document.querySelector('[data-composer-approval]'),'cancelled interaction restores ordinary input')
+ // Stopping remains a normal-composer/parent action, never an extra approval control.
+ stopFails=true;await renderComposer();await act(async()=>click('.wb-composer__queue-stop'))
+ check(document.querySelector('[role="alert"]')?.textContent?.includes('stop fixture failed'),'normal composer still reports stop failure')
+ stopFails=false;await act(async()=>click('.wb-composer__queue-stop'))
+ check(stops===2,'normal composer stop remains reachable and can retry independently of send')
+ active=true;await renderComposer()
+ const previousApproval=document.querySelector('[data-composer-approval]')
+ check(!document.querySelector('[data-composer-approval] [role="alert"]'),'normal stop failure does not leak into approval surface')
+ check(!document.querySelector('button[aria-label="停止当前运行"],button[aria-label="停止"],.wb-composer__approval-stop'),'approval has no standalone cancellation control')
+ request='request-2';await renderComposer()
+ check(document.querySelector('[data-composer-approval]')!==previousApproval,'replacement request remounts keyed approval wrapper')
+ check(stops===2&&sends===0,'approval takeover and replacement neither stop the run nor send a message')
+ // Parent cancellation removes the pending interaction without depending on approval stop UI.
+ active=false;await renderComposer();check(!document.querySelector('[data-composer-approval]'),'parent-cancelled interaction restores ordinary input')
+ check(!!document.querySelector('.wb-composer__queue-stop')&&!!document.querySelector('[data-queue]'),'normal stop and queue restore after parent cancellation')
  // An upload already started before takeover must finish into the same draft without stealing focus.
  let uploaded: typeof attachments=[], stagingResolve!: (value: typeof attachments[number])=>void, uploadActive=false
  const uploadHost={pick:async()=>[],stage:()=>new Promise<typeof attachments[number]>(yes=>{stagingResolve=yes})}
@@ -129,6 +133,15 @@ async function main(){
  check(!document.querySelector('.conversation-input-area__input-stack')!.contains(document.activeElement),'upload completion does not focus hidden editor')
  uploadActive=false;await renderUpload()
  check(document.querySelector('.conversation-input-area__input-stack')?.textContent?.includes('upload.txt'),'completed attachment restored after approval')
+ // Empty drafts restore the ordinary stop button, not a send button, after takeover.
+ const renderEmpty=(approval:boolean)=>act(async()=>root.render(<ComposerControls key="empty-session" sessionId="empty-session" value="" onChange={()=>{}} onSend={()=>{sends++}} onStop={async()=>{stops++}}
+   approvalKey="empty-approval" approvalSlot={approval?<PermissionConfirm pendingId="empty-approval" toolName="Bash" options={options} resolve={pending} reject={async()=>{}}/>:undefined}/>))
+ await renderEmpty(true)
+ check(!document.querySelector('button[aria-label="停止"],button[aria-label="发送"]'),'empty draft also has no normal stop or send during approval')
+ await renderEmpty(false)
+ check(!!document.querySelector('button[aria-label="停止"]')&&!document.querySelector('button[aria-label="发送"]'),'empty draft restores normal stop without send after approval')
+ await act(async()=>click('button[aria-label="停止"]'))
+ check(stops===3&&sends===0,'restored empty-draft stop still invokes cancellation without sending')
  await act(async()=>root.unmount());dom.window.close()
  console.log(`Permission intercept DOM: ${checks} checks passed (not pixel/SDK verification)`)
  process.exit(0)
diff --git a/src/renderer/src/workbuddy/composer/ComposerControls.tsx b/src/renderer/src/workbuddy/composer/ComposerControls.tsx
index 7e56363..c3b03ac 100644
--- a/src/renderer/src/workbuddy/composer/ComposerControls.tsx
+++ b/src/renderer/src/workbuddy/composer/ComposerControls.tsx
@@ -146,24 +146,10 @@ export function readReferenceUris(transfer: Pick<DataTransfer, 'getData'>): stri
   return transfer.getData('text/uri-list').split(/\r\n?|\n/).filter((value) => value.trim() && !value.startsWith('#'))
 }
 
-/** Keyed by request identity so a late cancellation result cannot affect its successor. */
-function ApprovalComposerSurface({ children, onStop }: { children: ReactNode; onStop?: () => void | Promise<void> }): React.JSX.Element {
-  const [error, setError] = useState<string | null>(null)
-  const [busy, setBusy] = useState(false)
-  const busyRef = useRef(false)
-  const mounted = useRef(true)
-  useEffect(() => { mounted.current = true; return () => { mounted.current = false } }, [])
+/** Keep each approval subtree scoped to its request identity. */
+function ApprovalComposerSurface({ children }: { children: ReactNode }): React.JSX.Element {
   return <div className="conversation-input-area__approval" data-composer-approval="true">
     {children}
-    {onStop && <button type="button" className="wb-composer__approval-stop" aria-label="停止当前运行" disabled={busy} onClick={async () => {
-      if (busyRef.current) return
-      busyRef.current = true
-      setBusy(true)
-      setError(null)
-      try { await onStop() } catch (reason) { if (mounted.current) setError(errorText(reason)) }
-      finally { if (mounted.current) { busyRef.current = false; setBusy(false) } }
-    }}>停止当前运行</button>}
-    {error && <div className="wb-composer__error" role="alert">{error}</div>}
   </div>
 }
 
@@ -556,7 +542,7 @@ export function ComposerControls({
         }
       }}
     >
-      {approvalTakeover && <ApprovalComposerSurface key={approvalKey ?? sessionId} onStop={onStop}>{approvalSlot}</ApprovalComposerSurface>}
+      {approvalTakeover && <ApprovalComposerSurface key={approvalKey ?? sessionId}>{approvalSlot}</ApprovalComposerSurface>}
       {!approvalTakeover && floatingSlot && <div className="conversation-input-area__custom-floating">{floatingSlot}</div>}
       <div ref={inputStackRef} hidden={approvalTakeover} inert={approvalTakeover} aria-hidden={approvalTakeover || undefined}
         onFocusCapture={event => { if (approvalTakeover) { event.stopPropagation(); (event.target as HTMLElement).blur() } }}
diff --git a/src/renderer/src/workbuddy/composer/composer.css b/src/renderer/src/workbuddy/composer/composer.css
index 9d0ee88..4c4cb4a 100644
--- a/src/renderer/src/workbuddy/composer/composer.css
+++ b/src/renderer/src/workbuddy/composer/composer.css
@@ -550,4 +550,3 @@
 /* B03: approval owns the bottom surface; keep draft state mounted, never visible/focusable. */
 .wb-composer .conversation-input-area__input-stack[hidden] { display: none; }
 .conversation-input-area__approval { width: 100%; min-width: 0; }
-.wb-composer__approval-stop { display: block; margin: var(--yc-space-3) 0 0 auto; cursor: pointer; }
diff --git a/src/renderer/src/workbuddy/composer/input-composition.ts b/src/renderer/src/workbuddy/composer/input-composition.ts
index 64fe33b..5a91ba0 100644
--- a/src/renderer/src/workbuddy/composer/input-composition.ts
+++ b/src/renderer/src/workbuddy/composer/input-composition.ts
@@ -137,7 +137,7 @@ function panelId(value: ComposerInteractionSnapshot | ComposerNoticeSnapshot | C
  *    data.
  * 4. Tasks move into the queue header when the queue is visible, otherwise
  *    they stay in the unified stack above the editor.
- * 5. The running generation keeps its stop action reachable in every state.
+ * 5. Running state keeps its stop action semantics; approval takeover hides the normal toolbar and renders only the approval card.
  */
 export function composeComposer(input: ComposerCompositionInput = {}): ComposerComposition {
   const interaction = isActiveComposerInteraction(input.interaction) ? input.interaction : null