diff --git a/scripts/alignment-conversation-regression.tsx b/scripts/alignment-conversation-regression.tsx
index a2730f4..27cc361 100644
--- a/scripts/alignment-conversation-regression.tsx
+++ b/scripts/alignment-conversation-regression.tsx
@@ -44,3 +44,32 @@ const expandedGrouped=renderToStaticMarkup(<CompletedFold parts={message.parts!}
 assert.deepEqual([...expandedGrouped.matchAll(/data-index="(\d+)"/g)].map(m=>Number(m[1])),[0,1,2,3,4,5])
 assert.deepEqual([...expandedGrouped.matchAll(/data-local-group="(\d+)"/g)].map(m=>Number(m[1])),[1,4],
   'opening completion must preserve independently controlled local summaries')
+
+// A01: exercise the real native name through MessageBubble, not just its projection.
+const nativeQuestion = {...question, status: 'done' as const, tools: question.tools!.map(tool => ({...tool, output: 'RAW SDK ANSWER'}))}
+for (const name of ['AskUserQuestion', 'askuserquestion', 'ask_user_question', 'AskFollowupQuestion', 'ask-followup-question']) {
+  const fixture = {...nativeQuestion, tools: nativeQuestion.tools.map(tool => ({...tool, name}))}
+  const before = JSON.stringify(fixture)
+  const markup = renderToStaticMarkup(<MessageBubble message={fixture}/>)
+  assert.match(markup, /ask-user-question--completed/, `${name} routes to dedicated question card`)
+  assert.doesNotMatch(markup, /RAW SDK ANSWER/, `${name} suppresses raw SDK answer`)
+  assert.equal(JSON.stringify(fixture), before, 'rendering does not rewrite recorded names or metadata')
+}
+const ordinary = renderToStaticMarkup(<MessageBubble message={{...nativeQuestion, interactions: [], tools: [{...nativeQuestion.tools[0], name: 'CustomQuestionReporter', metadata: undefined}]}}/>)
+assert.doesNotMatch(ordinary, /ask-user-question--completed/)
+assert.match(ordinary, /RAW SDK ANSWER/, 'ordinary tools retain their raw output')
+console.log('A01 native MessageBubble identity aliases, immutable inputs and ordinary raw output passed')
+const importedNative = {...nativeQuestion, interactions: [], tools: nativeQuestion.tools.map(tool => ({...tool,
+  args: {questions: [{id: 'q1', question: 'Imported native question'}]}, output: 'q1 -> imported answer', metadata: {importedHistory: true}
+}))}
+const importedMarkup = renderToStaticMarkup(<MessageBubble message={importedNative}/>)
+assert.match(importedMarkup, /ask-user-question--completed/)
+assert.equal(importedNative.tools[0].name, 'AskUserQuestion', 'historical display adaptation does not rewrite stored name')
+const duplicateMarkup = renderToStaticMarkup(<MessageBubble message={{...nativeQuestion, interactions: [...nativeQuestion.interactions!, ...nativeQuestion.interactions!]}}/>)
+assert.equal((duplicateMarkup.match(/ask-user-question--completed/g) || []).length, 1, 'linked answers have one dedicated card')
+const legacyNative = {...nativeQuestion, parts: undefined, tools: nativeQuestion.tools.map(tool => ({...tool, metadata: {questionAnswer: {questions: [{id: 'legacy', question: 'Unknown-position question', answers: ['legacy answer']}]}}})), interactions: []}
+const legacyNativeMarkup = renderToStaticMarkup(<MessageBubble message={legacyNative}/>)
+assert.match(legacyNativeMarkup, /历史问答（原始位置不可用）/)
+assert.equal((legacyNativeMarkup.match(/Unknown-position question/g) || []).length, 1)
+assert.doesNotMatch(legacyNativeMarkup, /RAW SDK ANSWER/)
+console.log('A01 imported native card, linked dedup and unknown-position compatibility passed')
diff --git a/scripts/completed-fold-nested-regression.tsx b/scripts/completed-fold-nested-regression.tsx
new file mode 100644
index 0000000..ae085cd
--- /dev/null
+++ b/scripts/completed-fold-nested-regression.tsx
@@ -0,0 +1,68 @@
+/** Real nested React DOM components; deliberately no Electron, SDK, network, or layout claim. */
+import assert from 'node:assert/strict'
+import { createRequire } from 'node:module'
+const { JSDOM } = createRequire(process.cwd() + '/package.json')(process.env.YCODE_TEST_DOM_MODULE || 'jsdom')
+const dom = new JSDOM('<html><body><main id="root"></main></body></html>', { pretendToBeVisual: true, url: 'http://localhost/' })
+for (const key of ['window', 'document', 'Node', 'Element', 'HTMLElement', 'MouseEvent', 'KeyboardEvent', 'Event']) Object.defineProperty(globalThis, key, { value: dom.window[key], configurable: true })
+Object.defineProperty(globalThis, 'navigator', { value: dom.window.navigator, configurable: true })
+Object.assign(globalThis, { IS_REACT_ACT_ENVIRONMENT: true })
+const { act } = require('react') as typeof import('react')
+const { createRoot } = require('react-dom/client') as typeof import('react-dom/client')
+const { CompletedFold } = require('../src/renderer/src/workbuddy/conversation/CompletedFold') as typeof import('../src/renderer/src/workbuddy/conversation/CompletedFold')
+const { ToolGroup } = require('../src/renderer/src/workbuddy/conversation/ToolCall') as typeof import('../src/renderer/src/workbuddy/conversation/ToolCall')
+const { ToolCallRenderer } = require('../src/renderer/src/workbuddy/conversation/ToolCallRenderer') as typeof import('../src/renderer/src/workbuddy/conversation/ToolCallRenderer')
+const { ThinkingBlock, TaskBlock, PlanCreateBlock } = require('../src/renderer/src/workbuddy/conversation/SpecializedBlocks') as typeof import('../src/renderer/src/workbuddy/conversation/SpecializedBlocks')
+const root = createRoot(document.getElementById('root')!)
+const tool = (id: string) => ({ id, name: id === 'q' ? 'AskUserQuestion' : 'UnknownOrdinaryTool', status: 'executed' as const, args: { value: id }, result: 'RAW TOOL RESULT', metaData: id === 'q' ? { questionAnswer: { questions: [{ question: 'Choose?', answers: ['Yes'] }] } } : undefined })
+const initialParts = [{ type: 'reasoning', id: 'r', text: 'Thought' }, { type: 'tool', toolId: 't' }, { type: 'tool', toolId: 'q' }, { type: 'text', text: 'Answer' }, { type: 'reasoning', id: 'r2', text: 'Later thought' }, { type: 'tool', toolId: 't2' }, { type: 'tool', toolId: 'task' }, { type: 'tool', toolId: 'plan' }]
+function Fixture({ parts = initialParts, id = 'message-one', finished = true }: { parts?: typeof initialParts; id?: string; finished?: boolean }) {
+  return <CompletedFold foldId={id} parts={parts} turnFinished={finished} classifyToolCall={part => part.toolId === 'q' ? { role: 'inline-question' } : undefined}
+    renderGroup={(group, children) => <ToolGroup variant="summary" className={`group-${group.units[0].part.id || group.units[0].part.toolId}`} stats={{ toolCallCount: group.toolCallCount, messageCount: group.units.length, errorCount: 0 }}>{children}</ToolGroup>}
+    renderUnit={part => part.type === 'tool' && part.toolId === 'task' ? <TaskBlock status="executed" data={{ finalResult: 'Task result', toolInfo: [] }} /> : part.type === 'tool' && part.toolId === 'plan' ? <PlanCreateBlock status="success" data={{ id: 'plan', name: 'Plan', todolist: [] }} /> : part.type === 'reasoning' ? <ThinkingBlock text={String(part.text)} isFinished /> : part.type === 'tool' ? <ToolCallRenderer tool={tool(String(part.toolId))} /> : <p>{String(part.text)}</p>} />
+}
+const get = (selector: string) => { const el = document.querySelector(selector); assert.ok(el, selector); return el }
+const expanded = (selector: string) => get(selector).getAttribute('aria-expanded')
+const outer = '.cr-collapse--completed > .cr-collapse__header'
+const question = '.ask-user-question__header .cr-tool-head__main'
+const ordinary = '[data-tool-call-id="t"] .cr-tool-head__main'
+const thinking = '.group-r .cr-reasoning > .cr-collapse__header'
+const group = '.group-r > .cr-collapse__header'
+const second = '.group-r2 > .cr-collapse__header'
+async function click(selector: string) { await act(async () => get(selector).dispatchEvent(new MouseEvent('click', { bubbles: true }))) }
+async function keyboard(selector: string, key: string) { await act(async () => get(selector).dispatchEvent(new KeyboardEvent('keydown', { key, bubbles: true, cancelable: true }))) }
+async function main() {
+  await act(async () => root.render(<Fixture />))
+  assert.equal(expanded(outer), 'false')
+  await keyboard(outer, 'Enter')
+  for (const selector of [group, thinking, ordinary, question]) { assert.equal(expanded(selector), 'false'); await click(selector); assert.equal(expanded(selector), 'true') }
+  assert.equal(expanded(second), 'false', 'local summaries are independent')
+  for (const selector of ['.cb-task-result-item-title', '.cb-plan-header-left']) { assert.equal(expanded(selector), 'true'); await click(selector); assert.equal(expanded(selector), 'false') }
+  await keyboard(outer, ' ')
+  const content = document.getElementById(get(outer).getAttribute('aria-controls')!)!
+  assert.equal(content.getAttribute('aria-hidden'), 'true')
+  assert.ok(content.hasAttribute('inert'), 'outer hidden descendants cannot receive focus')
+  await keyboard(outer, 'Enter')
+  for (const selector of [group, thinking, ordinary, question]) assert.equal(expanded(selector), 'true', `${selector} survives outer remount`)
+  assert.equal(expanded(second), 'false')
+  for (const selector of ['.cb-task-result-item-title', '.cb-plan-header-left']) assert.equal(expanded(selector), 'false', 'specialized tool choice retained')
+  await click(ordinary)
+  await act(async () => root.render(<Fixture parts={[...initialParts, { type: 'tool', toolId: 't3' }]} />))
+  await click(outer); await click(outer)
+  assert.equal(expanded(ordinary), 'false', 'explicit collapsed choice persists after later event')
+  for (const selector of [group, thinking, question]) assert.equal(expanded(selector), 'true', `${selector} retained after later event`)
+  assert.equal(expanded(second), 'false')
+  assert.equal(document.querySelectorAll('.ask-user-question--completed').length, 1, 'no duplicated hidden content trees')
+  await act(async () => root.render(<Fixture id="message-two" />))
+  assert.equal(expanded(outer), 'false', 'message identity resets outer state')
+  await click(outer)
+  for (const selector of [group, thinking, ordinary, question]) assert.equal(expanded(selector), 'false', 'message identity isolates nested state')
+  await act(async () => root.render(<Fixture id="live-message" finished={false} />))
+  for (const selector of [group, thinking, ordinary, question]) await click(selector)
+  await act(async () => root.render(<Fixture id="live-message" finished />))
+  assert.equal(expanded(outer), 'false', 'completion starts folded after live events')
+  await click(outer)
+  for (const selector of [group, thinking, ordinary, question]) assert.equal(expanded(selector), 'true', `${selector} survives live-to-completed reparenting`)
+  await act(async () => root.unmount()); dom.window.close()
+  console.log('completed-fold-nested: real question/tool/thinking/local-summary remount, event, keyboard and identity contracts passed')
+}
+main().then(() => process.exit(0)).catch(error => { console.error(error); dom.window.close(); process.exit(1) })
diff --git a/scripts/question-answer-shell-regression.tsx b/scripts/question-answer-shell-regression.tsx
new file mode 100644
index 0000000..deaab5d
--- /dev/null
+++ b/scripts/question-answer-shell-regression.tsx
@@ -0,0 +1,61 @@
+/** B01 A04: structural/CSS and DOM contracts, not browser geometry or pixel acceptance. */
+import assert from 'node:assert/strict'
+import { readFileSync } from 'node:fs'
+import { createRequire } from 'node:module'
+import React, { act } from 'react'
+import { renderToStaticMarkup } from 'react-dom/server'
+import { createRoot } from 'react-dom/client'
+import type { AskUserQuestionTool } from '../src/renderer/src/workbuddy/conversation/AskUserQuestion'
+import { AskUserQuestion } from '../src/renderer/src/workbuddy/conversation/AskUserQuestion'
+
+const tool: AskUserQuestionTool = { name: 'AskUserQuestion', status: 'success', metadata: { questionAnswer: {
+  questions: [{ id: 'q', question: 'Which runtime?', answers: ['Node.js'] }]
+} } }
+const markup = renderToStaticMarkup(<AskUserQuestion tool={tool} contentSettled={false} />)
+assert.match(markup, /cr-tool-head/)
+assert.match(markup, /cr-tool-exp__content ask-user-question__content/)
+assert.doesNotMatch(markup, /ask-user-question__(?:icon|arrow|title)/)
+const css = readFileSync('src/renderer/src/workbuddy/conversation/conversation.css', 'utf8')
+const recovered = readFileSync('src/renderer/src/workbuddy/conversation/tool-result-source.css', 'utf8')
+assert.match(css, /\.ask-user-question--completed \{ background: transparent; border: 0; border-radius: 0; padding: 2px 0; \}/)
+assert.match(css, /\.ask-user-question--completed \.ask-user-question__content \{ border: 0; \}/)
+// Contract is sourced from the checked-in REA-recovered ToolExpandable, not the old local 360px card.
+const contentRule = [...recovered.matchAll(/(?:^|})\.cr-tool-exp__content\{([^}]+)\}/g)].map(match => match[1]).join(';')
+for (const declaration of ['background:var(--cr-bg-primary-default,#2a2c31)', 'border-radius:16px', 'max-height:300px', 'padding:12px 16px', 'overflow:auto']) assert.ok(contentRule.includes(declaration), declaration)
+for (const kind of ['question', 'answer']) assert.match(css, new RegExp(`\\.question-answer-transcript__${kind} \\{[^}]*font-size: var\\(--yc-font-size-5\\); font-weight: 400; line-height: 1\\.75;`))
+console.log('question-answer-shell: structural and recovered CSS contracts passed')
+
+async function main() {
+  if (!process.env.YCODE_TEST_DOM_MODULE) {
+    console.log('question-answer-shell: DOM checks NOT RUN (set YCODE_TEST_DOM_MODULE to an available jsdom module)')
+    return
+  }
+  const { JSDOM } = createRequire(process.cwd() + '/package.json')(process.env.YCODE_TEST_DOM_MODULE || 'jsdom')
+  const dom = new JSDOM('<html><body><main id="root"></main></body></html>', { pretendToBeVisual: true })
+  for (const key of ['window', 'document', 'Node', 'Element', 'HTMLElement', 'MouseEvent', 'KeyboardEvent']) Object.defineProperty(globalThis, key, { value: dom.window[key], configurable: true })
+  Object.assign(globalThis, { IS_REACT_ACT_ENVIRONMENT: true })
+  const root = createRoot(document.querySelector('#root')!)
+  await act(async () => root.render(<AskUserQuestion tool={tool} contentSettled />))
+  const header = document.querySelector<HTMLElement>('.ask-user-question__header [role="button"]')!
+  const content = document.getElementById(header.getAttribute('aria-controls')!)!
+  assert.ok(header)
+  assert.equal(header.tabIndex, 0)
+  assert.equal(header.getAttribute('aria-expanded'), 'false')
+  assert.equal(content.getAttribute('aria-hidden'), 'true')
+  assert.ok(content.hasAttribute('inert'))
+  assert.equal(content.contains(header), false, 'title and toggle must be outside gray content')
+  assert.equal(content.querySelectorAll('.question-answer-transcript__item').length, 1)
+  for (const key of ['Enter', ' ']) {
+    await act(async () => { header.dispatchEvent(new dom.window.KeyboardEvent('keydown', { key, bubbles: true, cancelable: true })) })
+    assert.equal(header.getAttribute('aria-expanded'), key === 'Enter' ? 'true' : 'false')
+    assert.equal(content.hasAttribute('inert'), key !== 'Enter')
+  }
+  await act(async () => header.click())
+  assert.equal(header.getAttribute('aria-expanded'), 'true')
+  assert.equal(content.getAttribute('aria-hidden'), 'false')
+  assert.match(content.textContent!, /Which runtime\?Node.js/)
+  await act(async () => root.unmount())
+  dom.window.close()
+  console.log('question-answer-shell: DOM hierarchy, controls linkage, click, Enter, Space and inert contracts passed')
+}
+main().then(() => process.exit(0)).catch(error => { console.error(error); process.exit(1) })
diff --git a/scripts/question-identity-regression.tsx b/scripts/question-identity-regression.tsx
new file mode 100644
index 0000000..304e96f
--- /dev/null
+++ b/scripts/question-identity-regression.tsx
@@ -0,0 +1,64 @@
+/** A01 real component DOM regression. Offline only; does not verify browser geometry or SDK execution. */
+import assert from 'node:assert/strict'
+import { createRequire } from 'node:module'
+import type { ChatMessage } from '../src/shared/types'
+const { JSDOM } = createRequire(process.cwd() + '/package.json')(process.env.YCODE_TEST_DOM_MODULE || 'jsdom')
+const dom = new JSDOM('<!doctype html><html><body><main id="root"></main></body></html>', {pretendToBeVisual:true,url:'http://localhost/'})
+for (const key of ['window','document','Node','Element','HTMLElement','MouseEvent','KeyboardEvent','Event']) Object.defineProperty(globalThis,key,{value:dom.window[key],configurable:true})
+Object.defineProperty(globalThis,'navigator',{value:dom.window.navigator,configurable:true})
+Object.assign(globalThis,{IS_REACT_ACT_ENVIRONMENT:true})
+const React = require('react') as typeof import('react')
+const {act} = React
+const {createRoot} = require('react-dom/client') as typeof import('react-dom/client')
+const MessageBubble = require('../src/renderer/src/components/MessageBubble').default as typeof import('../src/renderer/src/components/MessageBubble').default
+const root = createRoot(document.getElementById('root')!)
+const click = (el: Element) => el.dispatchEvent(new MouseEvent('click',{bubbles:true}))
+const answer = {questions:[{id:'q1',question:'Choose a unique option',answers:['Unique answer']}]}
+const base: ChatMessage = {id:'native-question',role:'assistant',createdAt:1,content:'Final prose',status:'done',parts:[{type:'tool',toolId:'q'},{type:'text',text:'Final prose'}],tools:[{id:'q',name:'AskUserQuestion',args:{questions:[{id:'q1',question:'Choose a unique option'}]},argsRaw:'{}',status:'ok',output:'RAW SDK ANSWER'}],interactions:[{id:'i',runId:'r',kind:'question',toolCallId:'q',title:'Question',questions:[],status:'answered',answer}]}
+let checks=0
+const check=(condition:unknown,label:string)=>{assert.ok(condition,label);checks++}
+async function main(){
+ for (const name of ['AskUserQuestion','askuserquestion','ask_user_question']) {
+  const fixture={...base,tools:base.tools!.map(tool=>({...tool,name})),interactions:[...base.interactions!,...base.interactions!]}
+  const before=JSON.stringify(fixture)
+  await act(async()=>root.render(<MessageBubble key={name} message={fixture}/>))
+  check(!document.body.textContent!.includes('RAW SDK ANSWER'),`${name}: no raw answer`)
+  await act(async()=>click(document.querySelector('.cr-collapse--completed > .cr-collapse__header')!))
+  check(document.querySelectorAll('.ask-user-question--completed').length===1,`${name}: linked duplicate interactions produce one question card`)
+  await act(async()=>click(document.querySelector('.ask-user-question__header .cr-tool-head__main')!))
+  check(document.querySelector('.ask-user-question__header .cr-tool-head__main')?.getAttribute('aria-expanded')==='true',`${name}: answered card actually expanded`)
+  check(document.querySelectorAll('.question-answer-transcript__question').length===1,`${name}: expanded answer occurs exactly once`)
+  check(document.body.textContent!.includes('Choose a unique option') && document.body.textContent!.includes('Unique answer'),`${name}: question and answer visible`)
+  check(JSON.stringify(fixture)===before,`${name}: recorded source unchanged`)
+ }
+ // Native SDK identity throughout pending → answered → completed → outer toggle.
+ const pending: ChatMessage={...base,status:'streaming',parts:[{type:'tool',toolId:'q'}],interactions:[],tools:base.tools!.map(tool=>({...tool,status:'running',output:undefined}))}
+ await act(async()=>root.render(<MessageBubble key="lifecycle" message={pending}/>))
+ check(!!document.querySelector('.ask-user-question--pending'),'native pending question uses specialized renderer')
+ await act(async()=>root.render(<MessageBubble key="lifecycle" message={{...base,status:'streaming'}}/>))
+ check(!!document.querySelector('.ask-user-question--completed'),'native answered question uses transcript while turn runs')
+ await act(async()=>root.render(<MessageBubble key="lifecycle" message={base}/>))
+ const outer=()=>document.querySelector('.cr-collapse--completed > .cr-collapse__header')!
+ await act(async()=>click(outer()))
+ const header=()=>document.querySelector('.ask-user-question__header .cr-tool-head__main')!
+ if(header().getAttribute('aria-expanded')!=='true') await act(async()=>click(header()))
+ await act(async()=>click(outer()));await act(async()=>click(outer()))
+ check(header().getAttribute('aria-expanded')==='true','native answered choice survives completed outer collapse/reopen')
+ check(!document.body.textContent!.includes('RAW SDK ANSWER'),'native lifecycle never leaks raw SDK answer')
+ const imported={...base,interactions:[],tools:base.tools!.map(tool=>({...tool,output:'q1 -> Unique answer',metadata:{importedHistory:true}}))}
+ await act(async()=>root.render(<MessageBubble key="imported" message={imported}/>))
+ await act(async()=>click(document.querySelector('.cr-collapse--completed > .cr-collapse__header')!))
+ await act(async()=>click(document.querySelector('.ask-user-question__header .cr-tool-head__main')!))
+ check(document.body.textContent!.includes('Unique answer'),'historical native name and answer-text adaptation preserved')
+ check(imported.tools[0].name==='AskUserQuestion','historical stored name unchanged')
+ for (const interactions of [base.interactions, []]) {
+  const legacy={...base,parts:undefined,interactions,tools:base.tools!.map(tool=>({...tool,metadata:{questionAnswer:answer}}))}
+  await act(async()=>root.render(<MessageBubble key={`legacy-${interactions?.length}`} message={legacy}/>))
+  check(document.querySelector('.question-history-unpositioned')?.getAttribute('aria-label')==='历史问答（原始位置不可用）','missing recorded position remains explicitly unknown')
+  check(document.querySelectorAll('.question-answer-transcript__question').length===1,'unknown-position metadata and interaction do not duplicate')
+  check(!document.body.textContent!.includes('RAW SDK ANSWER'),'unknown-position raw duplicate suppressed')
+ }
+ await act(async()=>root.unmount());dom.window.close()
+ console.log(`question-identity: ${checks} A01 DOM checks passed (not Electron/pixel/SDK acceptance)`)
+}
+main().then(() => process.exit(0)).catch(error=>{console.error(error);process.exit(1)})
diff --git a/scripts/run-alignment-regression.mjs b/scripts/run-alignment-regression.mjs
index de6a64a..ea0af70 100644
--- a/scripts/run-alignment-regression.mjs
+++ b/scripts/run-alignment-regression.mjs
@@ -3,7 +3,7 @@ import { build } from 'esbuild'
 import { spawnSync } from 'node:child_process'
 const tests = [
   'model-selection-alignment-regression.ts', 'model-settings-alignment-regression.ts', 'session-factory-alignment-regression.ts',
-  'session-composer-alignment-regression.tsx', 'alignment-conversation-regression.tsx',
+  'session-composer-alignment-regression.tsx', 'alignment-conversation-regression.tsx', 'question-answer-shell-regression.tsx',
   'runtime-authorization-regression.ts', 'permission-intercept-regression.tsx'
 ]
 for (const file of tests) {
@@ -24,7 +24,7 @@ for (const file of ['scripts/build-runtime-regressions.mjs', '.tmp/claude-approv
 
 // Optional DOM tests use separately installed jsdom, not Electron/CLI or an upstream model.
 if (process.env.YCODE_TEST_DOM_MODULE) {
-  for (const file of ['task-popconfirm-regression', 'question-interaction-regression', 'permission-intercept-dom-regression']) {
+  for (const file of ['task-popconfirm-regression', 'question-interaction-regression', 'question-identity-regression', 'completed-fold-nested-regression', 'permission-intercept-dom-regression']) {
     const outfile = `.tmp/alignment-tests/${file}.cjs`
     await build({ entryPoints: [`scripts/${file}.tsx`], outfile, bundle: true, platform: 'node', format: 'cjs', jsx: 'automatic', loader: { '.css': 'empty' }, logLevel: 'warning' })
     const result = spawnSync(process.execPath, [outfile], { stdio: 'inherit', timeout: 120000 })
diff --git a/src/renderer/src/components/MessageBubble.tsx b/src/renderer/src/components/MessageBubble.tsx
index e14eb98..9470f81 100644
--- a/src/renderer/src/components/MessageBubble.tsx
+++ b/src/renderer/src/components/MessageBubble.tsx
@@ -1,3 +1,4 @@
+import { isQuestionToolName } from '@shared/tool-identity'
 import type { ChatMessage, MessagePart } from '@shared/types'
 import { projectQuestionAnswers } from '../workbuddy/conversation/question-projection'
 import SourceAgentAvatar from './SourceAgentAvatar'
@@ -91,7 +92,7 @@ export default function MessageBubble({ message, assistantAvatar, onQuote, quote
     if (questionProjection.positionedAnswers.has(part.toolId) || activeQuestionIds.has(part.toolId)) return { role: 'inline-question' }
     const name = tools.find(tool => tool.id === part.toolId)?.name.toLowerCase() ?? ''
     if (['show_widget', 'visualize:show_widget', 'visualizer:show_widget'].includes(name)) return { role: 'show-widget' }
-    if (['ask_followup_question', 'ask_user_question', 'askfollowupquestion', 'askuserquestion'].includes(name)) return { role: 'inline-question' }
+    if (isQuestionToolName(name)) return { role: 'inline-question' }
     return undefined
   }
   const renderTool = (id: string): React.ReactNode => {
diff --git a/src/renderer/src/workbuddy/conversation/AskUserQuestion.tsx b/src/renderer/src/workbuddy/conversation/AskUserQuestion.tsx
index 5aa18cc..c0c3aba 100644
--- a/src/renderer/src/workbuddy/conversation/AskUserQuestion.tsx
+++ b/src/renderer/src/workbuddy/conversation/AskUserQuestion.tsx
@@ -1,4 +1,7 @@
-import { useEffect, useRef, useState } from 'react'
+import { useEffect, useId, useRef } from 'react'
+import { SourceToolHeader } from './SourceToolHeader'
+import { useDisclosureState } from './disclosure-state'
+import './tool-result-source.css'
 import type { ConversationToolCall, QuestionAnswerItem, QuestionLabels } from './types'
 import { getToolCallPhase } from './ToolCall'
 import { defaultQuestionLabels } from './QuestionFloating'
@@ -47,7 +50,8 @@ export function AskUserQuestion({ tool, contentSettled, labels: labelOverrides,
   const phase = getToolCallPhase(tool.status)
   const metadata = tool.metaData || tool.metadata
   const wasUnsettled = useRef(contentSettled)
-  const [expanded, setExpanded] = useState(() => contentSettled === false)
+  const [expanded, setExpanded] = useDisclosureState('question', () => contentSettled === false)
+  const contentId = `question-${useId()}-content`
 
   useEffect(() => {
     if (contentSettled && wasUnsettled.current === false) setExpanded(false)
@@ -95,21 +99,21 @@ export function AskUserQuestion({ tool, contentSettled, labels: labelOverrides,
 
   return (
     <section className={['ask-user-question', 'ask-user-question--completed', expanded && 'ask-user-question--expanded', className].filter(Boolean).join(' ')}>
-      <button
-        type="button"
+      <SourceToolHeader
         className="ask-user-question__header"
-        aria-expanded={expanded}
-        onClick={() => setExpanded(value => !value)}
-      >
-        <span className="ask-user-question__icon" aria-hidden="true">?</span>
-        <span className="ask-user-question__title">{labels.title}</span>
-        <span className="ask-user-question__arrow" aria-hidden="true">{expanded ? '-' : '+'}</span>
-      </button>
-      {expanded && (
-        <div className="ask-user-question__content">
+        statusText={labels.title}
+        collapsible
+        expanded={expanded}
+        controlsId={contentId}
+        onToggle={() => setExpanded(value => !value)}
+      />
+      <div id={contentId}
+        className={`cr-tool-exp__content-shell${expanded ? ' cr-tool-exp__content-shell--expanded' : ''}`}
+        aria-hidden={!expanded} inert={!expanded}>
+        <div className="cr-tool-exp__content ask-user-question__content">
           <QuestionAnswerTranscript questionAnswer={questionAnswer} labels={labels} />
         </div>
-      )}
+      </div>
     </section>
   )
 }
diff --git a/src/renderer/src/workbuddy/conversation/CompletedFold.tsx b/src/renderer/src/workbuddy/conversation/CompletedFold.tsx
index f05c058..50f1252 100644
--- a/src/renderer/src/workbuddy/conversation/CompletedFold.tsx
+++ b/src/renderer/src/workbuddy/conversation/CompletedFold.tsx
@@ -1,4 +1,5 @@
-import { Fragment, useId, useState, type KeyboardEvent, type ReactNode } from 'react'
+import { useId, useState, type KeyboardEvent, type ReactNode } from 'react'
+import { DisclosureStateProvider, DisclosureStateScope, useDisclosureState } from './disclosure-state'
 import { SourceFoldChevronIcon } from '../message-actions/SourceActionIcons'
 import {
   buildCompletedFoldModel,
@@ -25,12 +26,12 @@ function renderPart(
   summaryGroup?: CompletedFoldSummaryGroup
 ): ReactNode {
   const classification = unit.classification ?? classifyCompletedFoldPart(unit.part, unit.index)
-  return <Fragment key={unit.key}>{render(unit.part, unit.index, {
+  return <DisclosureStateScope key={unit.key} id={partDisclosureId(unit.part, unit.index)}>{render(unit.part, unit.index, {
     kind: summaryGroup ? 'summary-member' : 'part',
     classification,
     presentationGroupId: classification.presentationGroupId,
     summaryGroup
-  })}</Fragment>
+  })}</DisclosureStateScope>
 }
 
 function renderPresentationUnit(
@@ -41,9 +42,9 @@ function renderPresentationUnit(
   if (unit.kind === 'part') return renderPart(unit.unit, render)
   const children = unit.group.units.map(member => renderPart(member, render, unit.group))
   return (
-    <Fragment key={unit.group.key}>
+    <DisclosureStateScope key={unit.group.key} id={`summary:${partDisclosureId(unit.group.units[0].part, unit.group.units[0].index)}`}>
       {renderGroup ? renderGroup(unit.group, children) : <>{children}</>}
-    </Fragment>
+    </DisclosureStateScope>
   )
 }
 
@@ -66,7 +67,7 @@ function CollapseSection({
   controlledExpanded?: boolean
   onExpandedChange?: (expanded: boolean) => void
 }) {
-  const [localExpanded, setLocalExpanded] = useState(defaultExpanded)
+  const [localExpanded, setLocalExpanded] = useDisclosureState(`collapse:${id}`, defaultExpanded)
   const expanded = controlledExpanded ?? localExpanded
   const contentId = `${id}-content`
   const toggle = () => {
@@ -145,7 +146,16 @@ export function LiveEventDisclosure({
   )
 }
 
-export function CompletedFold({
+function partDisclosureId(part: CompletedFoldPart, index: number): string {
+  const id = 'id' in part && typeof part.id === 'string' ? part.id : part.type === 'tool' && typeof part.toolId === 'string' ? part.toolId : index
+  return JSON.stringify([part.type, id])
+}
+
+export function CompletedFold(props: CompletedFoldProps) {
+  return <DisclosureStateProvider key={props.foldId}><CompletedFoldContent {...props} /></DisclosureStateProvider>
+}
+
+function CompletedFoldContent({
   parts,
   turnFinished,
   turnDurationMs,
@@ -173,11 +183,11 @@ export function CompletedFold({
   if (!model) return <>{parts.map((part, index) => {
     const classification = classifyCompletedFoldPart(part, index, classifyToolCall)
     if (!classification.hasRootBlock) return null
-    return <Fragment key={`${part.type}:${index}`}>{render(part, index, {
+    return <DisclosureStateScope key={`${part.type}:${index}`} id={partDisclosureId(part, index)}>{render(part, index, {
       kind: 'part',
       classification,
       presentationGroupId: classification.presentationGroupId
-    })}</Fragment>
+    })}</DisclosureStateScope>
   })}</>
 
   // The compact model groups hidden process around visible anchors. Once opened,
@@ -198,7 +208,7 @@ export function CompletedFold({
         ) : parts.map((part, index) => {
           const classification = classifyCompletedFoldPart(part, index, classifyToolCall)
           if (!classification.hasRootBlock) return null
-          return <Fragment key={`${part.type}:${index}`}>{render(part, index, { kind: 'part', classification })}</Fragment>
+          return <DisclosureStateScope key={`${part.type}:${index}`} id={partDisclosureId(part, index)}>{render(part, index, { kind: 'part', classification })}</DisclosureStateScope>
         })
       })()}
     </CollapseSection>
diff --git a/src/renderer/src/workbuddy/conversation/SourceToolHeader.tsx b/src/renderer/src/workbuddy/conversation/SourceToolHeader.tsx
index 9fa3266..c4d0fa4 100644
--- a/src/renderer/src/workbuddy/conversation/SourceToolHeader.tsx
+++ b/src/renderer/src/workbuddy/conversation/SourceToolHeader.tsx
@@ -1,4 +1,5 @@
-import { useEffect, useLayoutEffect, useRef, useState, type KeyboardEvent, type MouseEvent, type ReactNode } from 'react'
+import { useEffect, useLayoutEffect, useRef, type KeyboardEvent, type MouseEvent, type ReactNode } from 'react'
+import { useDisclosureState } from './disclosure-state'
 import { useSourceStickyAutoScroll } from './source-tool-effects'
 import { SourceFoldChevronIcon } from '../message-actions/SourceActionIcons'
 import { FailedIcon } from './RecoveredBlockIcons'
@@ -20,6 +21,7 @@ export interface SourceToolHeaderProps {
   collapsible?: boolean
   expanded?: boolean
   onToggle?: () => void
+  controlsId?: string
   actions?: ReactNode
   className?: string
 }
@@ -41,6 +43,7 @@ export function SourceToolHeader({
   collapsible = false,
   expanded = false,
   onToggle,
+  controlsId,
   actions,
   className
 }: SourceToolHeaderProps) {
@@ -60,6 +63,7 @@ export function SourceToolHeader({
         role={canToggle && !onPrimaryClick ? 'button' : undefined}
         tabIndex={canToggle ? 0 : undefined}
         aria-expanded={canToggle ? expanded : undefined}
+        aria-controls={canToggle ? controlsId : undefined}
         onMouseDown={canToggle ? preventMultiClickSelection : undefined}
         onClick={canToggle ? onToggle : undefined}
         onKeyDown={handleKeyDown}
@@ -130,7 +134,7 @@ export function SourceToolExpandable({
   className,
   ...headerProps
 }: SourceToolExpandableProps) {
-  const [expanded, setExpanded] = useState(() => defaultExpanded || expand === true)
+  const [expanded, setExpanded] = useDisclosureState('tool-expandable', () => defaultExpanded || expand === true)
   const priorExpand = useRef<boolean | undefined>(undefined)
   const expandable = canExpand && children != null
   const open = expandable && expanded
diff --git a/src/renderer/src/workbuddy/conversation/SpecializedBlocks.tsx b/src/renderer/src/workbuddy/conversation/SpecializedBlocks.tsx
index b7419f9..7bf8430 100644
--- a/src/renderer/src/workbuddy/conversation/SpecializedBlocks.tsx
+++ b/src/renderer/src/workbuddy/conversation/SpecializedBlocks.tsx
@@ -1,3 +1,4 @@
+import { useDisclosureState } from './disclosure-state'
 import { useMemo, useState, type ReactNode } from 'react'
 import './task-source.css'
 import type { ConversationToolCall } from './types'
@@ -27,7 +28,7 @@ export interface ThinkingBlockProps {
 }
 
 export function ThinkingBlock({ text, isFinished = false, isLastContent = false, title = t('message.loading.thinking'), className, renderMarkdown }: ThinkingBlockProps) {
-  const [expanded, setExpanded] = useState(isLastContent)
+  const [expanded, setExpanded] = useDisclosureState('thinking', isLastContent)
   if (!text) return null
 
   return (
@@ -136,7 +137,7 @@ export function PlanCreateBlock({
   maxDisplayTasks = 5,
   className
 }: PlanCreateBlockProps) {
-  const [collapsed, setCollapsed] = useState(initiallyCollapsed)
+  const [collapsed, setCollapsed] = useDisclosureState('plan-collapsed', initiallyCollapsed)
   const finished = status === 'success' || status === 'error' || status === 'cancelled'
   const succeeded = status === 'success'
   const tasks = useMemo(() => (Array.isArray(data.todolist) ? data.todolist : []), [data.todolist])
@@ -320,7 +321,7 @@ const taskSourceAttributes = {
 }
 
 export function TaskBlock({ data, status, onApprove, onReject, renderMarkdown, toolName = 'task', className }: TaskBlockProps) {
-  const [expanded, setExpanded] = useState(true)
+  const [expanded, setExpanded] = useDisclosureState('task-expanded', true)
   const [decisionByIndex, setDecisionByIndex] = useState<Record<number, 'approved' | 'rejected' | 'responding' | 'error'>>({})
   const [errorByIndex, setErrorByIndex] = useState<Record<number, string>>({})
   const isExecuting = ['idle', 'pending', 'parsing', 'stream_executing', 'full_executing', 'executing', 'running'].includes(status)
diff --git a/src/renderer/src/workbuddy/conversation/ToolCall.tsx b/src/renderer/src/workbuddy/conversation/ToolCall.tsx
index 7211a5f..903eb25 100644
--- a/src/renderer/src/workbuddy/conversation/ToolCall.tsx
+++ b/src/renderer/src/workbuddy/conversation/ToolCall.tsx
@@ -1,3 +1,4 @@
+import { useDisclosureState } from './disclosure-state'
 import { Children, useId, useMemo, useState, type ReactNode } from 'react'
 import { SourceFoldChevronIcon } from '../message-actions/SourceActionIcons'
 import { SourceToolExpandable } from './SourceToolHeader'
@@ -172,7 +173,7 @@ export function ToolGroup({
   className
 }: ToolGroupProps) {
   const contentId = useId()
-  const [localExpanded, setLocalExpanded] = useState(defaultExpanded)
+  const [localExpanded, setLocalExpanded] = useDisclosureState('tool-group', defaultExpanded)
   const [visiblePages, setVisiblePages] = useState(1)
   const expanded = controlledExpanded ?? localExpanded
   const items = useMemo(() => Children.toArray(children), [children])
diff --git a/src/renderer/src/workbuddy/conversation/ToolCallRenderer.tsx b/src/renderer/src/workbuddy/conversation/ToolCallRenderer.tsx
index 859d137..8bbe524 100644
--- a/src/renderer/src/workbuddy/conversation/ToolCallRenderer.tsx
+++ b/src/renderer/src/workbuddy/conversation/ToolCallRenderer.tsx
@@ -1,3 +1,5 @@
+import { useDisclosureState } from './disclosure-state'
+import { isQuestionToolName } from '@shared/tool-identity'
 import './tool-result-source.css'
 import { useEffect, useState, type KeyboardEvent, type ReactNode } from 'react'
 import { AskUserQuestion } from './AskUserQuestion'
@@ -132,10 +134,11 @@ const exactAliases: Record<CapturedToolKind, string[]> = {
   'exit-plan': ['exit_plan_mode', 'exitplanmode'],
   task: ['task', 'Task'],
   'task-output': ['TaskOutput', 'task_output', 'task-output'],
-  question: ['ask_followup_question', 'askfollowupquestion', 'ask-followup-question', 'ask_user_question', 'askuserquestion']
+  question: [] // Question aliases are shared with message classification.
 }
 
 export function getCapturedToolKind(toolName: string): CapturedToolKind | undefined {
+  if (isQuestionToolName(toolName)) return 'question'
   for (const [kind, aliases] of Object.entries(exactAliases) as [CapturedToolKind, string[]][]) {
     if (aliases.includes(toolName)) return kind
   }
@@ -1081,8 +1084,7 @@ function mcpDisplayCount(value: unknown): number | undefined {
 
 function McpDisplayView({ tool }: { tool: ConversationToolCall }) {
   const data = convertMcpDisplay(tool)
-  const [expanded, setExpanded] = useState(false)
-  useEffect(() => setExpanded(false), [tool.id])
+  const [expanded, setExpanded] = useDisclosureState(`mcp-display:${tool.id}`, false)
   const canExpand = data.detailText !== undefined
   const toggle = () => setExpanded(value => !value)
   return <div className={`cr-captured-tool cr-tool-display-list${canExpand ? ' cr-tool-display-list--clickable' : ''}`} data-tool-call-id={tool.id} data-tool-name={tool.name} data-tool-status={tool.status} role="list">
diff --git a/src/renderer/src/workbuddy/conversation/conversation.css b/src/renderer/src/workbuddy/conversation/conversation.css
index b5c0b46..1f13643 100644
--- a/src/renderer/src/workbuddy/conversation/conversation.css
+++ b/src/renderer/src/workbuddy/conversation/conversation.css
@@ -106,8 +106,7 @@
 .cr-tool-call__header,
 .cr-tool-call__toggle,
 .cr-meta-fold__head,
-.conversation-high-credit-approval__header,
-.ask-user-question__header {
+.conversation-high-credit-approval__header {
   align-items: center;
   display: flex;
   min-width: 0;
@@ -119,8 +118,7 @@
 }
 
 .cr-tool-call__toggle,
-.cr-meta-fold__head,
-.ask-user-question__header {
+.cr-meta-fold__head {
   appearance: none;
   background: transparent;
   border: 0;
@@ -145,14 +143,12 @@
 .cr-tool-call__icon,
 .cr-tool-call__title,
 .cr-meta-fold__summary,
-.conversation-high-credit-approval__title,
-.ask-user-question__title {
+.conversation-high-credit-approval__title {
   min-width: 0;
 }
 
 .cr-tool-call__title,
-.conversation-high-credit-approval__title,
-.ask-user-question__title {
+.conversation-high-credit-approval__title {
   font-size: 13px;
   font-weight: 600;
   overflow-wrap: anywhere;
@@ -175,8 +171,7 @@
 .cr-tool-call__status--skipped { color: var(--conversation-muted); }
 
 .cr-tool-call__arrow,
-.cr-meta-fold__arrow,
-.ask-user-question__arrow {
+.cr-meta-fold__arrow {
   color: var(--conversation-muted);
   flex: 0 0 auto;
   font-size: 14px;
@@ -190,8 +185,7 @@
 }
 
 .cr-tool-call__body,
-.cr-meta-fold__body,
-.ask-user-question__content {
+.cr-meta-fold__body {
   border-top: 1px solid var(--conversation-border);
   padding: 10px 12px;
 }
@@ -278,10 +272,6 @@
 .ask-user-question--failed,
 .ask-user-question--skipped { align-items: center; color: var(--conversation-muted); display: flex; font-size: 12px; gap: 8px; }
 .ask-user-question--failed { color: var(--conversation-error); }
-.ask-user-question__header { gap: 8px; min-height: 28px; padding: 0; }
-.ask-user-question__icon { align-items: center; border: 1px solid var(--conversation-border); border-radius: 50%; color: var(--conversation-muted); display: inline-flex; flex: 0 0 18px; font-size: 11px; height: 18px; justify-content: center; }
-.ask-user-question__title { flex: 1; }
-.ask-user-question__content { padding: 9px 11px; }
 .question-answer-transcript { display: grid; gap: 10px; }
 .question-answer-transcript__item { display: grid; gap: 4px; }
 .question-answer-transcript__question { font-size: 12px; font-weight: 600; overflow-wrap: anywhere; }
@@ -339,9 +329,10 @@
 .cb-plan-task--clickable:hover { background: color-mix(in srgb, var(--conversation-text) 4%, transparent); }
 .cb-plan-task--clickable:focus-visible { outline: 2px solid var(--conversation-accent); outline-offset: 2px; }
 
-/* 10/21 alignment plan: answered QuestionView typography, not a tool summary. */
-.ask-user-question--completed { background: var(--cb-content-background, var(--cb-gray-color)); border-radius: var(--yc-radius-2xl); padding: var(--yc-space-3) var(--yc-space-4); }
-.ask-user-question__content { max-height: 22.5rem; overflow-y: auto; padding: var(--yc-space-3) 0 0; }
+/* Answered QuestionView: ToolExpandable header sits outside the recovered gray content shell. */
+.ask-user-question--completed { background: transparent; border: 0; border-radius: 0; padding: 2px 0; }
+.ask-user-question--completed .ask-user-question__content { border: 0; }
+.ask-user-question__header .cr-tool-head__main:focus-visible { outline: 2px solid var(--conversation-accent); outline-offset: 2px; }
 .question-answer-transcript { gap: var(--yc-space-4); }
 .question-answer-transcript__question { color: var(--cb-text-tertiary, var(--cb-text-secondary)); font-size: var(--yc-font-size-5); font-weight: 400; line-height: 1.75; }
 .question-answer-transcript__answer { color: var(--cb-text-primary); font-size: var(--yc-font-size-5); font-weight: 400; line-height: 1.75; }
diff --git a/src/renderer/src/workbuddy/conversation/disclosure-state.tsx b/src/renderer/src/workbuddy/conversation/disclosure-state.tsx
new file mode 100644
index 0000000..44b7fb1
--- /dev/null
+++ b/src/renderer/src/workbuddy/conversation/disclosure-state.tsx
@@ -0,0 +1,41 @@
+import { createContext, useCallback, useContext, useRef, useState, useSyncExternalStore, type Dispatch, type ReactNode, type SetStateAction } from 'react'
+
+interface DisclosureStore {
+  values: Map<string, boolean>
+  listeners: Set<() => void>
+}
+const StoreContext = createContext<DisclosureStore | null>(null)
+const ScopeContext = createContext('')
+
+/** Lives for one message/fold, not globally. Presentation reparenting must not erase user choices. */
+export function DisclosureStateProvider({ children }: { children: ReactNode }) {
+  const [store] = useState<DisclosureStore>(() => ({ values: new Map(), listeners: new Set() }))
+  return <StoreContext.Provider value={store}>{children}</StoreContext.Provider>
+}
+
+export function DisclosureStateScope({ id, children }: { id: string; children: ReactNode }) {
+  // Scope is an absolute part/group identity: moving a part into a summary cannot change it.
+  return <ScopeContext.Provider value={id}>{children}</ScopeContext.Provider>
+}
+
+export function useDisclosureState(slot: string, initial: boolean | (() => boolean)): [boolean, Dispatch<SetStateAction<boolean>>] {
+  const store = useContext(StoreContext)
+  const scope = useContext(ScopeContext)
+  const key = JSON.stringify([scope, slot])
+  const [fallback, setFallback] = useState(initial)
+  const initialValue = useRef(fallback)
+  const subscribe = useCallback((listener: () => void) => {
+    store?.listeners.add(listener)
+    return () => { store?.listeners.delete(listener) }
+  }, [store])
+  const snapshot = useCallback(() => store?.values.get(key) ?? initialValue.current, [store, key])
+  const retained = useSyncExternalStore(subscribe, snapshot, snapshot)
+  const setValue = useCallback<Dispatch<SetStateAction<boolean>>>((action) => {
+    if (!store) { setFallback(action); return }
+    const previous = store.values.get(key) ?? initialValue.current
+    const next = typeof action === 'function' ? action(previous) : action
+    store.values.set(key, next)
+    if (previous !== next) store.listeners.forEach(listener => listener())
+  }, [store, key])
+  return [store ? retained : fallback, setValue]
+}
diff --git a/src/shared/tool-identity.ts b/src/shared/tool-identity.ts
new file mode 100644
index 0000000..a9ea9f3
--- /dev/null
+++ b/src/shared/tool-identity.ts
@@ -0,0 +1,9 @@
+/** Display-only identity lookup. Never rewrite the recorded name or invocation. */
+const questionAliases = new Set([
+  'askuserquestion', 'ask_user_question',
+  'askfollowupquestion', 'ask_followup_question', 'ask-followup-question'
+])
+
+export function isQuestionToolName(name: string): boolean {
+  return questionAliases.has(name.toLowerCase())
+}