diff --git a/apps/presentation/dashboard/src/features/personal-workspace/goal-research-analysis.css b/apps/presentation/dashboard/src/features/personal-workspace/goal-research-analysis.css
index f14ba8fa2d..0816518dfb 100644
--- a/apps/presentation/dashboard/src/features/personal-workspace/goal-research-analysis.css
+++ b/apps/presentation/dashboard/src/features/personal-workspace/goal-research-analysis.css
@@ -84,11 +84,9 @@
 @media (max-width: 640px) { .research-analysis { padding: 16px; } .analysis-episode-context { grid-template-columns: 1fr; gap: 12px; } .analysis-method dl { grid-template-columns: 1fr; gap: 2px; } .analysis-method dd { margin-bottom: 8px; } .analysis-pack-choice { flex-direction: column; align-items: stretch; } }
 
 /* Readback has one status surface, shared by the summary and its detail. */
-.analysis-read-error,.analysis-read-empty{display:flex;align-items:center;flex-wrap:wrap;gap:8px;margin-block:12px;color:var(--pw-muted)}
-.analysis-read-empty{margin-block:0 16px;padding:10px 12px;border:1px solid var(--pw-line);border-radius:8px;background:var(--pw-hover);font-size:var(--text-body)}
-.analysis-read-empty>button{margin-inline-start:auto}
-.analysis-read-error>button,.analysis-read-empty>button{display:inline-flex;align-items:center;justify-content:center;gap:4px;min-height:44px;border:1px solid var(--pw-line);border-radius:6px;padding:8px 12px;color:var(--pw-text);background:var(--pw-bg);font:inherit;cursor:pointer}
-.analysis-read-error>button:disabled,.analysis-read-empty>button:disabled{opacity:.5;cursor:default}
+.analysis-read-error{display:flex;align-items:center;flex-wrap:wrap;gap:8px;margin-block:12px;color:var(--pw-muted)}
+.analysis-read-error>button{display:inline-flex;align-items:center;justify-content:center;gap:4px;min-height:44px;border:1px solid var(--pw-line);border-radius:6px;padding:8px 12px;color:var(--pw-text);background:var(--pw-bg);font:inherit;cursor:pointer}
+.analysis-read-error>button:disabled{opacity:.5;cursor:default}
 .analysis-read-loading{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:16px;padding-block:16px}
 .analysis-read-loading>span{height:5rem;border-radius:6px;background:var(--pw-line)}
 @media(max-width:640px){.analysis-read-loading{grid-template-columns:repeat(2,minmax(0,1fr))}}
diff --git a/apps/presentation/dashboard/src/features/personal-workspace/goal-research-analysis.tsx b/apps/presentation/dashboard/src/features/personal-workspace/goal-research-analysis.tsx
index 7589627889..f8e5c4dd0a 100644
--- a/apps/presentation/dashboard/src/features/personal-workspace/goal-research-analysis.tsx
+++ b/apps/presentation/dashboard/src/features/personal-workspace/goal-research-analysis.tsx
@@ -155,7 +155,7 @@ export function useResearchAnalysis(goalId: string, active: boolean, zh: boolean
   };
   const execute = async (retry = false) => {
     if (readSourceUrl && snapshot?.execution_enabled !== true) return;
-    if (!pack || pack.availability !== "available" || submitting.current) return;
+    if (readError || !pack || pack.availability !== "available" || submitting.current) return;
     show(); submitting.current = true; setPending(true); setError("");
     const current = generation.current;
     try {
@@ -204,12 +204,14 @@ const reasonCopy = (reason: string | null | undefined, zh: boolean) => {
 
 export function ResearchAnalysisButton({analysis: a}: {analysis: Controller}) {
   const unavailable = a.readOnly || a.pack?.availability !== "available";
+  const sourceUnavailable = !a.loading && !a.readError && a.snapshot && (!a.pack || a.pack.availability !== "available");
   // The action keeps its separate-usage consequence visible. Further method
   // explanation is optional; cached results and unavailable states are reads.
-  const readOnly = unavailable || a.pack?.result || a.pending || a.recordedRunning;
-  return <div className="research-analysis-entry"><div className="research-analysis-entry-actions"><button ref={a.trigger} type="button" disabled={a.loading && !a.pack} onClick={() => readOnly ? a.show() : void a.execute(a.pack?.job?.status === "failed" || a.pack?.job?.status === "cancelled")} aria-expanded={a.location.open} title={unavailable && !a.loading && !a.readError ? reasonCopy(a.pack?.reason_code ?? a.snapshot?.catalog.reason_code, a.zh) : undefined}>
+  const readOnly = unavailable || a.readError || a.pack?.result || a.pending || a.recordedRunning;
+  return <div className="research-analysis-entry"><div className="research-analysis-entry-actions"><button ref={a.trigger} type="button" disabled={a.loading && !a.pack} onClick={() => readOnly ? a.show() : void a.execute(a.pack?.job?.status === "failed" || a.pack?.job?.status === "cancelled")} aria-expanded={a.location.open}>
     <Sparkles size={14} aria-hidden/>{a.pack?.result ? (a.zh ? "查看分析" : "View analysis") : analysisActionLabel(a.pack, a.zh)}
-  </button><ContextHelp label={a.zh ? "分析说明" : "About deep analysis"}>
+  </button><ContextHelp label={sourceUnavailable ? (a.zh ? "分析来源未就绪" : "Analysis source unavailable") : (a.zh ? "分析说明" : "About deep analysis")} icon={sourceUnavailable ? CircleHelp : undefined}>
+    {sourceUnavailable ? <p>{reasonCopy(a.pack?.reason_code ?? a.snapshot?.catalog.reason_code, a.zh)}</p> : null}
     {a.pack ? <p>{a.zh ? "分析请求设置（固定）：" : "Fixed analysis request: "}{a.pack.config.model} / {a.pack.config.effort} / {a.pack.config.service_tier}</p> : null}
     <p>{a.pack?.display_request
       ? (a.zh ? "本次分析同时生成固定历史快照的中文展示译文；问题、决策、结论与历史正文按字段核对版本，缺失项保留原文。" : "This analysis also translates the frozen history snapshot: questions, decisions, findings and historical text are version-bound field by field; missing translations retain their originals.")
@@ -266,9 +268,8 @@ function AnalysisReadState({analysis: a}: {analysis: Controller}) {
   </div>;
   if (!a.pack && a.loading && (!a.snapshot || a.snapshot.catalog.packs.length > 0)) return <div className="analysis-read-loading" role="status" aria-label={a.zh ? "正在读取分析" : "Reading analysis"}>
     {Array.from({length: 6}, (_, i) => <span key={i} aria-hidden/>)}</div>;
-  if (!a.pack) return <div className="analysis-read-empty"><span>{reasonCopy(a.snapshot?.catalog.reason_code, a.zh)}</span>
-    <button type="button" disabled={a.loading} aria-label={a.zh ? "刷新分析来源" : "Refresh analysis sources"} onClick={() => void a.read().catch(() => undefined)}><RefreshCw size={14} aria-hidden/></button></div>;
-  return !a.pack.result && a.pack.availability !== "available" ? <ContextHelp label={a.zh ? "分析来源未就绪" : "Analysis source unavailable"} icon={CircleHelp}><p className="research-history-note">{reasonCopy(a.pack.reason_code, a.zh)}</p></ContextHelp> : null;
+  if (!a.pack && a.location.open) return <p role="status">{a.zh ? "分析来源未就绪" : "Analysis source unavailable"}</p>;
+  return null;
 }
 
 export function ResearchAnalysisStatus({analysis: a}: {analysis: Controller}) {
@@ -404,14 +405,15 @@ export function ResearchAnalysisPanel({analysis: a, onHistory}: {analysis: Contr
   const zh = a.zh, p = a.pack, result = p?.result;
   const resultJob = p?.result_job ?? p?.job;
   const failed = p?.job?.status === "failed" || p?.job?.status === "cancelled";
-  const available = p?.availability === "available" && !a.readOnly;
+  const sourceAvailable = p?.availability === "available" && !a.readOnly;
+  const available = sourceAvailable && !a.readError;
   const benefit = result?.metrics.find(m => m.metric === "benefit_test");
   const headline = !result ? null : benefit?.no ? (zh ? "仍有研究片段尚未检验原目标收益" : "Some episodes have not tested original-objective utility")
     : benefit?.unknown ? (zh ? "原目标收益的检验情况仍未知" : "Original-objective utility testing remains unknown")
       : benefit?.yes ? (zh ? "模型记录了收益检验；这不等于收益为正" : "The model identified a utility test; this does not imply positive utility")
         : (zh ? "此方法未覆盖原目标收益检验" : "This method does not cover original-objective utility testing");
   return <div className={`research-analysis${result?.synthesis ? " has-synthesis" : ""}`} ref={a.panel} tabIndex={-1} role="region" aria-label={zh ? "轨迹深度分析" : "Trajectory analysis"} onKeyDown={event => {if (event.key === "Escape") {event.stopPropagation(); a.close();}}}>
-    <header><div><h3>{result?.synthesis ? (zh ? "研究汇报" : "Research report") : (zh ? "轨迹深度分析" : "Trajectory analysis")}</h3><p>{p?.title ?? (zh ? "只分析已授权的固定轨迹，不改变研究历史。" : "Analyze an authorized fixed trajectory without changing its history.")}</p></div><div className="analysis-header-actions">{result?.synthesis && onHistory ? <button type="button" onClick={onHistory}>{zh ? "Goal 研究历程" : "Goal research history"}</button> : null}{result ? <button type="button" onClick={() => void a.read().catch(() => undefined)} aria-label={zh ? "刷新分析结果" : "Refresh analysis result"}><RefreshCw size={15} aria-hidden/></button> : null}<button type="button" onClick={a.close} aria-label={zh ? "关闭分析" : "Close analysis"}><X size={16} aria-hidden/></button></div></header>
+    <header><div><h3>{result?.synthesis ? (zh ? "研究汇报" : "Research report") : (zh ? "轨迹深度分析" : "Trajectory analysis")}</h3>{p?.title ? <p>{p.title}</p> : null}</div><div className="analysis-header-actions">{result?.synthesis && onHistory ? <button type="button" onClick={onHistory}>{zh ? "Goal 研究历程" : "Goal research history"}</button> : null}{result ? <button type="button" onClick={() => void a.read().catch(() => undefined)} aria-label={zh ? "刷新分析结果" : "Refresh analysis result"}><RefreshCw size={15} aria-hidden/></button> : null}<button type="button" onClick={a.close} aria-label={zh ? "关闭分析" : "Close analysis"}><X size={16} aria-hidden/></button></div></header>
     {a.error ? <div className="analysis-error" role="alert">{zh ? "分析请求未完成，已保存结果保留。" : "The analysis request did not complete; saved results are preserved."} <button type="button" onClick={() => void a.read().catch(() => undefined)}>{zh ? "重试读取" : "Retry reading"}</button><ContextHelp label={zh ? "失败详情" : "Failure details"}><p>{a.error}</p></ContextHelp></div> : null}
     {a.snapshot?.catalog.unreadable_pack_ids?.length && !p?.continuation_unavailable ? <p className="analysis-warning">{zh ? "部分历史分析暂不可读" : "Some historical analyses cannot be read"} · {a.snapshot.catalog.unreadable_pack_ids.length}</p> : null}
     <AnalysisReadState analysis={a}/>
@@ -423,7 +425,7 @@ export function ResearchAnalysisPanel({analysis: a, onHistory}: {analysis: Contr
         <p>{zh ? "下方仍显示当前研究 Goal 的已记录历史。" : "The current research Goal’s recorded history remains below."}</p>
       </ContextHelp></div>
       <AnalysisContinuation pack={p} analysis={a}/>
-      {p.result && !available ? <p className="analysis-warning">{reasonCopy(p.reason_code, zh)}</p> : null}
+      {p.result && !sourceAvailable ? <p className="analysis-warning">{reasonCopy(p.reason_code, zh)}</p> : null}
       {p.result_attempt && p.result_attempt !== p.job?.attempt ? <ContextHelp label={zh ? "本次分析未完成" : "Current analysis incomplete"} icon={TriangleAlert}><p className="analysis-warning" role="status">{zh ? "当前重试尚未完成，显示上次已保存分析。" : "The current retry is incomplete; showing the previously saved analysis."}</p></ContextHelp> : null}
       {result?.display?.coverage.missing && !a.pending && !a.recordedRunning ? <div className="analysis-actions">
         <button type="button" disabled={!available} onClick={() => void a.execute(true)}>{zh ? "重新分析并补全译文" : "Reanalyze to complete translation"}</button>
diff --git a/apps/presentation/dashboard/src/features/personal-workspace/goal-research-history.css b/apps/presentation/dashboard/src/features/personal-workspace/goal-research-history.css
index 6c0025733e..f395110017 100644
--- a/apps/presentation/dashboard/src/features/personal-workspace/goal-research-history.css
+++ b/apps/presentation/dashboard/src/features/personal-workspace/goal-research-history.css
@@ -83,11 +83,9 @@
 .research-history-read-error > svg { color: var(--pw-red); }
 .research-history-empty > svg { color: var(--pw-muted); }
 .research-history-read-error > div, .research-history-empty > div { flex: 1; min-width: 0; }
+.research-history-read-error > div { display: flex; align-items: center; gap: 4px; }
 .research-history-read-error strong, .research-history-empty strong { font-size: var(--text-body); font-weight: 600; }
 .research-history-read-error p, .research-history-empty p { margin: 4px 0 0; color: var(--pw-muted); font-size: var(--text-body); line-height: var(--leading-prose); }
-.research-history-read-error details { margin-top: 8px; color: var(--pw-muted); font-size: var(--text-caption); }
-.research-history-read-error summary { min-height: 32px; cursor: pointer; }
-.research-history-read-error code { display: block; overflow-wrap: anywhere; color: var(--pw-muted); font-family: var(--font-mono); }
 .research-history-read-error > button, .research-history-empty > button { display: inline-flex; align-items: center; justify-content: center; gap: 6px; flex-shrink: 0; min-height: 44px; padding: 8px 12px; border: 1px solid var(--pw-line); border-radius: 6px; background: var(--pw-bg); color: var(--pw-text); font: inherit; font-size: var(--text-body); cursor: pointer; }
 .research-history-read-error > button:hover, .research-history-empty > button:hover { background: var(--pw-hover); }
 .research-history-error { color: var(--pw-red); font-size: var(--text-body); overflow-wrap: anywhere; }
diff --git a/apps/presentation/dashboard/src/features/personal-workspace/goal-research-history.tsx b/apps/presentation/dashboard/src/features/personal-workspace/goal-research-history.tsx
index 5d4c7b3e37..3998c9ec81 100644
--- a/apps/presentation/dashboard/src/features/personal-workspace/goal-research-history.tsx
+++ b/apps/presentation/dashboard/src/features/personal-workspace/goal-research-history.tsx
@@ -419,8 +419,7 @@ export function GoalResearchHistory({goalId, active, zh, refreshRevision = 0, re
     {readFailure ? <div className="research-history-read-error" role="alert">
       <AlertCircle size={18} aria-hidden/>
       <div><strong>{read.events.length ? (zh ? "刷新失败，当前记录已保留" : "Refresh failed; current records are preserved") : copy.failure}</strong>
-        <p>{read.events.length ? (zh ? "可继续阅读，或重试获取最新记录。" : "Keep reading, or retry for the latest records.") : (zh ? "请检查本地服务后重试；技术详情默认收起。" : "Check the local service and retry. Technical details stay collapsed.")}</p>
-        <details><summary>{zh ? "技术详情" : "Technical details"}</summary><code>{readFailure}</code></details>
+        <ContextHelp label={zh ? "研究记录读取详情" : "History read details"}><p>{readFailure}</p></ContextHelp>
       </div>
       <button type="button" disabled={busy} onClick={refresh}><RefreshCw size={14} aria-hidden/>{zh ? "重试" : "Retry"}</button>
     </div> : null}
diff --git a/docs/development/assets/research-report-episodes/research-state-after-desktop.png b/docs/development/assets/research-report-episodes/research-state-after-desktop.png
new file mode 100644
index 0000000000..27b7c40016
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diff --git a/docs/development/assets/research-report-episodes/research-state-after-narrow.png b/docs/development/assets/research-report-episodes/research-state-after-narrow.png
new file mode 100644
index 0000000000..e6038e6edd
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diff --git a/docs/development/assets/research-report-episodes/research-state-before-desktop.png b/docs/development/assets/research-report-episodes/research-state-before-desktop.png
new file mode 100644
index 0000000000..48c6cb4d7f
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diff --git a/docs/development/assets/research-report-episodes/research-state-before-narrow.png b/docs/development/assets/research-report-episodes/research-state-before-narrow.png
new file mode 100644
index 0000000000..be61908129
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diff --git a/docs/development/assets/research-report-episodes/research-state-error-after-narrow.png b/docs/development/assets/research-report-episodes/research-state-error-after-narrow.png
new file mode 100644
index 0000000000..cb6da0bb8b
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diff --git a/docs/development/assets/research-report-episodes/research-state-error-before-narrow.png b/docs/development/assets/research-report-episodes/research-state-error-before-narrow.png
new file mode 100644
index 0000000000..b413701136
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diff --git a/docs/development/assets/research-report-episodes/research-state-help-narrow.png b/docs/development/assets/research-report-episodes/research-state-help-narrow.png
new file mode 100644
index 0000000000..6f22d71c51
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diff --git a/docs/development/assets/research-report-episodes/research-state-populated-desktop.png b/docs/development/assets/research-report-episodes/research-state-populated-desktop.png
new file mode 100644
index 0000000000..8dd5ebeeb2
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diff --git a/examples/personal-workspace-browser/research-history.mjs b/examples/personal-workspace-browser/research-history.mjs
index 17c370be19..e5a3c730d3 100644
--- a/examples/personal-workspace-browser/research-history.mjs
+++ b/examples/personal-workspace-browser/research-history.mjs
@@ -326,14 +326,15 @@ export const researchHistoryScenario = {
     let unavailable = false;
     let analysisFixture = false, holdOldAnalysis = false, slowStarted, releaseOld, oldDelivered;
     let holdCitation = false, failedCitation = false, citationStarted, releaseCitation;
-    let unavailableAnalysis = false, episodeMetadataLimit = null, comparisonFixture = false;
-    let analysisWrites = 0, localizedFixture = false, continuationFixture = false, equivalentContinuation = false;
+    let unavailableAnalysis = false, failedAnalysisPack = "a", episodeMetadataLimit = null, comparisonFixture = false;
+    let analysisWrites = 0, analysisReads = 0, localizedFixture = false, continuationFixture = false, equivalentContinuation = false;
     let unavailableTask = false;
     const taskReads = [];
     try {
       context = await openWorkspacePage(browser, url, {collectCoverage, beforeGoto: async (_, page) => {
         await page.route("**/api/chat/research-analysis**", async route => {
           if (route.request().method() !== "GET") {analysisWrites++; return route.fulfill({status: 403, json: {error: "Read-only presentation fixture"}});}
+          analysisReads++;
           if (!analysisFixture) return route.fulfill({json: {ok: true, catalog: {availability: "unavailable", reason_code: "no_available_pack", default_pack_id: null, packs: []}, pack: null}});
           const query = new URL(route.request().url()).searchParams;
           const language = query.get('output_language');
@@ -388,7 +389,7 @@ export const researchHistoryScenario = {
               sources: {added: [], revised: [], removed: []}, episodes: {added: [], revised: [], removed: []}, reassessed_episode_ids: [], verdict_changes: []});
             readback.pack.result = null; readback.pack.job = null;
           }
-          await route.fulfill(unavailableAnalysis && selected === "a"
+          await route.fulfill(unavailableAnalysis && selected === failedAnalysisPack
             ? {status: 503, json: {error: "Synthetic analysis read unavailable"}}
             : {json: readback});
           if (holdOldAnalysis && selected === "a") oldDelivered();
@@ -432,6 +433,43 @@ export const researchHistoryScenario = {
       await history.getByRole("status").filter({hasText: "76 / 76"}).waitFor();
       assert.equal(pages.length, 2, "The complete Portfolio checkpoint requires every bounded HTTP page");
       assert.deepEqual(pages.flatMap(value => value.items).map(row => row.event_id), capture.events.map(row => row.event_id));
+      assert.equal(await history.locator('.analysis-read-empty').count(), 0,
+        'No analysis source must not add another explanation card above the recorded history');
+      const sourceHelp = history.getByRole('button', {name: '分析来源未就绪', exact: true});
+      await sourceHelp.waitFor();
+      assert.equal(await history.getByRole('button', {name: '分析说明', exact: true}).count(), 0,
+        'Source state and optional analysis guidance share one contextual entry');
+      assert.doesNotMatch(await history.innerText(), /尚无可分析的授权轨迹包/);
+      await sourceHelp.hover();
+      const sourceExplanation = page.locator('.context-help-popover:popover-open');
+      await sourceExplanation.hover();
+      assert.match(await sourceExplanation.innerText(), /尚无可分析的授权轨迹包/);
+      await page.keyboard.press('Escape');
+      await sourceHelp.focus();
+      await sourceExplanation.waitFor({state: 'visible'});
+      await page.keyboard.press('Escape');
+      assert(await sourceHelp.evaluate(e => e === document.activeElement));
+      const readsBeforeRefresh = analysisReads;
+      const analysisRefreshed = page.waitForResponse(response => new URL(response.url()).pathname === '/api/chat/research-analysis');
+      await history.getByRole('button', {name: '刷新记录', exact: true}).click();
+      await analysisRefreshed;
+      await sourceHelp.waitFor();
+      assert(analysisReads > readsBeforeRefresh, 'The shared research refresh still reads the analysis owner');
+      await page.setViewportSize({width: 390, height: 844});
+      await sourceHelp.click();
+      await sourceExplanation.waitFor({state: 'visible'});
+      const sourceBounds = await sourceExplanation.boundingBox();
+      assert(sourceBounds.x >= 0 && sourceBounds.x + sourceBounds.width <= 390);
+      await history.getByRole('heading', {name: '研究历程', exact: true}).click();
+      await sourceExplanation.waitFor({state: 'hidden'});
+      await history.getByRole('button', {name: '深度分析', exact: true}).click();
+      const unavailablePanel = history.getByRole('region', {name: '轨迹深度分析', exact: true});
+      await unavailablePanel.getByRole('status').filter({hasText: '分析来源未就绪'}).waitFor();
+      assert.equal(await unavailablePanel.locator('header p').count(), 0, 'An empty reader does not repeat analysis instructions');
+      await unavailablePanel.press('Escape');
+      assert(await history.getByRole('button', {name: '深度分析', exact: true}).evaluate(e => e === document.activeElement));
+      assert.equal(analysisWrites, 0, 'Unavailable analysis, help and recovery are reads');
+      await page.setViewportSize({width: 1280, height: 900});
       await history.locator(".research-phases").waitFor();
       const early = history.locator(".research-phase").first();
       await early.click();
@@ -487,7 +525,11 @@ export const researchHistoryScenario = {
       assert.match(await history.textContent(),/76 \/ 76/,'A failed refresh retains the complete real capture');
       const readError = history.locator('.research-history-read-error');
       assert.match(await readError.innerText(), /刷新失败，当前记录已保留/);
-      assert.equal(await readError.locator('details').evaluate(element => element.open), false, 'Technical failure detail stays secondary');
+      assert.equal(await readError.getByRole('tooltip').isVisible(), false, 'Technical failure detail stays secondary');
+      assert.doesNotMatch(await readError.innerText(), /可继续阅读|技术详情默认收起/);
+      await readError.getByRole('button', {name: '研究记录读取详情', exact: true}).focus();
+      assert.match(await readError.getByRole('tooltip').innerText(), /Isolated history transport unavailable/);
+      await page.keyboard.press('Escape');
       await readError.screenshot({path:resolve(outputDir,'research-history-refresh-error.png'),animations:'disabled'});
       unavailable=false;
       await readError.getByRole('button',{name:'重试',exact:true}).click();
@@ -1149,6 +1191,20 @@ Path(sys.argv[1]).write_text(json.dumps({'goal_id':goal,'display_name':'Syntheti
       assert.equal(await progress.locator('.research-effect-metrics').count(), 0, 'An unanalysed cost pack never borrows another pack’s judgments');
       assert.equal(await analysis.count(), 0, 'Choosing an unanalysed source never requests analysis');
       assert.equal(await improvement.locator('[data-retained-improvement]').textContent(), '—', 'Missing comparison evidence is unknown, never zero');
+      failedAnalysisPack = "d"; unavailableAnalysis = true;
+      await tabs.getByRole('button', {name: '概览', exact: true}).click();
+      await tabs.getByRole('button', {name: '研究', exact: true}).click();
+      await history.locator('.analysis-read-error').waitFor();
+      assert.equal(await nativeResults.locator('[data-native-point="retained"] strong').textContent(), '3', 'A failed same-scope refresh keeps recorded native facts');
+      await history.getByRole('button', {name: '深度分析', exact: true}).click();
+      await analysis.waitFor();
+      assert(await analysis.getByRole('button', {name: '分析所选范围', exact: true}).isDisabled(), 'A stale unanalysed pack cannot start a model while its refresh is unavailable');
+      assert.equal(analysisWrites, 0, 'The entry opens recovery instead of executing from a stale snapshot');
+      unavailableAnalysis = false; failedAnalysisPack = "a";
+      await analysis.getByRole('button', {name: '重试读取', exact: true}).click();
+      await analysis.getByRole('alert').waitFor({state: 'hidden'});
+      assert(await analysis.getByRole('button', {name: '分析所选范围', exact: true}).isEnabled(), 'A successful owner read restores the existing explicit analysis action');
+      await analysis.press('Escape');
       await basis.locator(':scope > summary').click();
       assert.equal(await nativeResults.locator('[data-native-point="retained"] strong').textContent(), '3', 'Native facts do not require an analyzer result');
       assert.match(await nativeResults.innerText(), /部分窗口 · 起点未知/);