diff --git a/src/renderer/src/components/right-sidebar/AiVaultSessionDetails.tsx b/src/renderer/src/components/right-sidebar/AiVaultSessionDetails.tsx
index 30e44d375..b3907d683 100644
--- a/src/renderer/src/components/right-sidebar/AiVaultSessionDetails.tsx
+++ b/src/renderer/src/components/right-sidebar/AiVaultSessionDetails.tsx
@@ -1,12 +1,5 @@
 import type React from 'react'
-import {
-  FileJson,
-  FolderGit2,
-  MessageSquare,
-  MessageSquarePlus,
-  Play,
-  TextCursorInput
-} from 'lucide-react'
+import { FileJson, FolderGit2, MessageSquare, MessageSquarePlus, Play } from 'lucide-react'
 import { Button } from '@/components/ui/button'
 import { Tooltip, TooltipContent, TooltipTrigger } from '@/components/ui/tooltip'
 import { cn } from '@/lib/utils'
@@ -17,7 +10,7 @@ import {
 } from '../../../../shared/ai-vault-types'
 import { translate } from '@/i18n/i18n'
 import { FirstPromptCard } from './ai-vault-first-prompt-card'
-import { sessionDetailConversationTurns, sessionFirstPrompt } from './ai-vault-session-display'
+import { sessionDetailConversationTurns, sessionPromptPreview } from './ai-vault-session-display'
 import { SessionSubagentsSection } from './AiVaultSessionSubagents'
 import { SessionUnsavedConversationNotice } from './AiVaultSessionUnsavedNotice'
 import {
@@ -59,7 +52,7 @@ export function SessionInlineDetails({
   const showResumeInNewTab =
     hasResumableContent &&
     (!resumeActions.worktree.worktreeId || Boolean(resumeActions.newTab.worktreeId))
-  const firstPromptPreview = sessionFirstPrompt(session)
+  const promptPreview = sessionPromptPreview(session)
   const detailTurns = sessionDetailConversationTurns(session, 3)
   const worktreeDisplay = worktreeInfo
 
@@ -158,19 +151,7 @@ export function SessionInlineDetails({
       <div className="space-y-3 p-3">
         {hasResumableContent ? (
           <>
-            <SessionReceiptSection
-              icon={<TextCursorInput className="size-3" />}
-              label={translate(
-                'auto.components.right.sidebar.AiVaultSessionDetails.firstPrompt',
-                'First prompt'
-              )}
-            >
-              <FirstPromptCard
-                key={session.id}
-                session={session}
-                previewText={firstPromptPreview ?? ''}
-              />
-            </SessionReceiptSection>
+            <FirstPromptCard key={session.id} session={session} preview={promptPreview} />
             <SessionReceiptSection
               icon={<MessageSquare className="size-3" />}
               label={translate(
diff --git a/src/renderer/src/components/right-sidebar/ai-vault-first-prompt-card.test.tsx b/src/renderer/src/components/right-sidebar/ai-vault-first-prompt-card.test.tsx
index c272ea700..7e67ba06e 100644
--- a/src/renderer/src/components/right-sidebar/ai-vault-first-prompt-card.test.tsx
+++ b/src/renderer/src/components/right-sidebar/ai-vault-first-prompt-card.test.tsx
@@ -3,6 +3,7 @@ import { StrictMode } from 'react'
 import { cleanup, render, screen, waitFor } from '@testing-library/react'
 import { afterEach, describe, expect, it, vi } from 'vitest'
 import { FirstPromptCard } from './ai-vault-first-prompt-card'
+import { sessionPromptPreview } from './ai-vault-session-display'
 import type { AiVaultSession } from '../../../../shared/ai-vault-types'
 
 const session = {
@@ -27,6 +28,61 @@ afterEach(() => {
 })
 
 describe('FirstPromptCard', () => {
+  it('labels stored firstUserPrompt text as the first prompt', () => {
+    const remoteSession = {
+      ...session,
+      executionHostId: 'ssh:dev-box',
+      firstUserPrompt: 'The authoritative opening ask'
+    } as AiVaultSession
+    stubApi(vi.fn().mockResolvedValue({ prompt: null }))
+
+    render(
+      <FirstPromptCard session={remoteSession} preview={sessionPromptPreview(remoteSession)} />
+    )
+
+    expect(screen.getByText('First prompt')).toBeTruthy()
+    expect(screen.getByText('The authoritative opening ask')).toBeTruthy()
+  })
+
+  it('labels a remote preview fallback as a recent prompt when no full read is available', () => {
+    const getFirstUserPrompt = vi.fn().mockResolvedValue({ prompt: null })
+    const remoteSession = {
+      ...session,
+      executionHostId: 'ssh:dev-box',
+      previewMessagesTruncated: true,
+      previewMessages: [
+        { role: 'user', text: 'A recent ask from the sliding window', timestamp: null }
+      ]
+    } as AiVaultSession
+    stubApi(getFirstUserPrompt)
+
+    render(
+      <FirstPromptCard session={remoteSession} preview={sessionPromptPreview(remoteSession)} />
+    )
+
+    expect(screen.getByText('Recent prompt')).toBeTruthy()
+    expect(screen.getByText('A recent ask from the sliding window')).toBeTruthy()
+    expect(getFirstUserPrompt).not.toHaveBeenCalled()
+  })
+
+  it('relabels a local preview fallback after the full first prompt loads', async () => {
+    const localSession = {
+      ...session,
+      previewMessagesTruncated: true,
+      previewMessages: [
+        { role: 'user', text: 'A recent ask from the sliding window', timestamp: null }
+      ]
+    } as AiVaultSession
+    stubApi(vi.fn().mockResolvedValue({ prompt: 'The authoritative opening ask' }))
+
+    render(<FirstPromptCard session={localSession} preview={sessionPromptPreview(localSession)} />)
+
+    expect(screen.getByText('Recent prompt')).toBeTruthy()
+    expect(screen.getByText('A recent ask from the sliding window')).toBeTruthy()
+    await waitFor(() => expect(screen.getByText('First prompt')).toBeTruthy())
+    expect(screen.getByText('The authoritative opening ask')).toBeTruthy()
+  })
+
   it('resolves loading under StrictMode double-invoke instead of stranding the card', async () => {
     // StrictMode mounts, cleans up, then re-mounts. The cleanup marks the first
     // request stale, so only a fresh second request can clear `loading`.
@@ -34,7 +90,7 @@ describe('FirstPromptCard', () => {
 
     render(
       <StrictMode>
-        <FirstPromptCard session={session} previewText="" />
+        <FirstPromptCard session={session} preview={null} />
       </StrictMode>
     )
 
@@ -47,7 +103,7 @@ describe('FirstPromptCard', () => {
     // A main process that never answers must not pin the card in `loading`.
     stubApi(vi.fn().mockReturnValue(new Promise(() => {})))
 
-    render(<FirstPromptCard session={session} previewText="" />)
+    render(<FirstPromptCard session={session} preview={null} />)
 
     expect(screen.getByText('Loading first prompt…')).toBeTruthy()
     await vi.advanceTimersByTimeAsync(15_000)
diff --git a/src/renderer/src/components/right-sidebar/ai-vault-first-prompt-card.tsx b/src/renderer/src/components/right-sidebar/ai-vault-first-prompt-card.tsx
index 181a8dc0a..cd8a1cb12 100644
--- a/src/renderer/src/components/right-sidebar/ai-vault-first-prompt-card.tsx
+++ b/src/renderer/src/components/right-sidebar/ai-vault-first-prompt-card.tsx
@@ -1,11 +1,12 @@
 import type React from 'react'
 import { useCallback, useEffect, useRef, useState } from 'react'
-import { Check, Copy, LoaderCircle } from 'lucide-react'
+import { Check, Copy, LoaderCircle, TextCursorInput } from 'lucide-react'
 import { toast } from 'sonner'
 import { Button } from '@/components/ui/button'
 import { translate } from '@/i18n/i18n'
 import type { AiVaultSession } from '../../../../shared/ai-vault-types'
 import { LOCAL_EXECUTION_HOST_ID } from '../../../../shared/execution-host'
+import type { AiVaultSessionPromptPreview } from './ai-vault-session-display'
 
 // Why: the main-process re-parse has no deadline of its own. Without this the
 // card can sit in `loading` forever on a huge or stalled transcript.
@@ -23,15 +24,11 @@ function canLoadFullFirstPrompt(
 
 export function FirstPromptCard({
   session,
-  previewText
+  preview
 }: {
   session: AiVaultSession
-  /**
-   * Short preview from the list scan; replaced by the full on-demand body when
-   * available. Empty unless the scan proved it really is the opening ask, so the
-   * fallback below can never show a recent turn (remote rows never re-parse).
-   */
-  previewText: string
+  /** Short list-scan text, replaced by the full opening ask when available. */
+  preview: AiVaultSessionPromptPreview | null
 }): React.JSX.Element {
   // Loading starts true when an on-demand re-parse is possible so the mount effect
   // does not need a sync setState (react-doctor: no-adjust-state-on-prop-change).
@@ -128,7 +125,9 @@ export function FirstPromptCard({
     }
   }, [loadFullPrompt])
 
+  const previewText = preview?.text ?? ''
   const displayText = (fullText ?? previewText).trim()
+  const displaySource = fullText ? 'first-user-prompt' : preview?.source
   const showEmpty = !loading && !displayText
 
   const copyFirstPrompt = (): void => {
@@ -143,12 +142,7 @@ export function FirstPromptCard({
         }
         return window.api.ui.writeClipboardText(copyText).then(() => {
           setCopied(true)
-          toast.success(
-            translate(
-              'auto.components.right.sidebar.AiVaultSessionDetails.firstPromptCopied',
-              'First prompt copied'
-            )
-          )
+          toast.success(promptCopiedLabel(loaded ? 'first-user-prompt' : preview?.source))
           window.setTimeout(() => {
             setCopied(false)
           }, 1400)
@@ -163,54 +157,103 @@ export function FirstPromptCard({
   }
 
   return (
-    <div className="rounded-md border border-border/70 bg-foreground/[0.04] px-2.5 py-2">
-      <div className="mb-1 flex items-center justify-between gap-2">
-        <div className="flex min-w-0 items-center gap-1.5 text-[10px] font-semibold uppercase tracking-[0.05em] text-muted-foreground">
-          <span>
-            {translate('auto.components.right.sidebar.AiVaultSessionDetails.userRole', 'You')}
-          </span>
-          {loading || copying ? (
-            <LoaderCircle className="size-3 shrink-0 animate-spin text-muted-foreground/70" />
-          ) : null}
-        </div>
-        <Button
-          type="button"
-          variant="ghost"
-          size="xs"
-          draggable={false}
-          disabled={copying || (!displayText && !loading)}
-          onClick={(event) => {
-            event.stopPropagation()
-            copyFirstPrompt()
-          }}
-          className="h-6 shrink-0 gap-1 px-1.5 text-[10px] text-muted-foreground"
-          aria-label={translate(
-            'auto.components.right.sidebar.AiVaultSessionDetails.copyFirstPrompt',
-            'Copy first prompt'
-          )}
-        >
-          {copied ? <Check className="size-3" /> : <Copy className="size-3" />}
-          {copied
-            ? translate('auto.components.right.sidebar.AiVaultSessionDetails.copied', 'Copied')
-            : translate('auto.components.right.sidebar.AiVaultSessionDetails.copy', 'Copy')}
-        </Button>
+    <section className="space-y-1.5">
+      <div className="flex items-center gap-1.5 text-[11px] font-semibold uppercase tracking-[0.05em] text-muted-foreground">
+        <span className="text-muted-foreground/80">
+          <TextCursorInput className="size-3" />
+        </span>
+        <span>{promptSectionLabel(displaySource)}</span>
       </div>
-      {showEmpty ? (
-        <p className="text-[11px] leading-4 text-muted-foreground">
-          {translate(
-            'auto.components.right.sidebar.AiVaultSessionDetails.noFirstPromptAvailable',
-            'No first prompt available'
-          )}
-        </p>
-      ) : (
-        <p className="scrollbar-sleek max-h-48 select-text overflow-y-auto whitespace-pre-wrap text-[12px] leading-[1.35] text-foreground/90 [overflow-wrap:anywhere]">
-          {displayText ||
-            translate(
-              'auto.components.right.sidebar.AiVaultSessionDetails.loadingFirstPrompt',
-              'Loading first prompt…'
+      <div className="rounded-md border border-border/70 bg-foreground/[0.04] px-2.5 py-2">
+        <div className="mb-1 flex items-center justify-between gap-2">
+          <div className="flex min-w-0 items-center gap-1.5 text-[10px] font-semibold uppercase tracking-[0.05em] text-muted-foreground">
+            <span>
+              {translate('auto.components.right.sidebar.AiVaultSessionDetails.userRole', 'You')}
+            </span>
+            {loading || copying ? (
+              <LoaderCircle className="size-3 shrink-0 animate-spin text-muted-foreground/70" />
+            ) : null}
+          </div>
+          <Button
+            type="button"
+            variant="ghost"
+            size="xs"
+            draggable={false}
+            disabled={copying || (!displayText && !loading)}
+            onClick={(event) => {
+              event.stopPropagation()
+              copyFirstPrompt()
+            }}
+            className="h-6 shrink-0 gap-1 px-1.5 text-[10px] text-muted-foreground"
+            aria-label={copyPromptLabel(displaySource)}
+          >
+            {copied ? <Check className="size-3" /> : <Copy className="size-3" />}
+            {copied
+              ? translate('auto.components.right.sidebar.AiVaultSessionDetails.copied', 'Copied')
+              : translate('auto.components.right.sidebar.AiVaultSessionDetails.copy', 'Copy')}
+          </Button>
+        </div>
+        {showEmpty ? (
+          <p className="text-[11px] leading-4 text-muted-foreground">
+            {translate(
+              'auto.components.right.sidebar.AiVaultSessionDetails.noFirstPromptAvailable',
+              'No first prompt available'
             )}
-        </p>
-      )}
-    </div>
+          </p>
+        ) : (
+          <p className="scrollbar-sleek max-h-48 select-text overflow-y-auto whitespace-pre-wrap text-[12px] leading-[1.35] text-foreground/90 [overflow-wrap:anywhere]">
+            {displayText ||
+              translate(
+                'auto.components.right.sidebar.AiVaultSessionDetails.loadingFirstPrompt',
+                'Loading first prompt…'
+              )}
+          </p>
+        )}
+      </div>
+    </section>
   )
 }
+
+function promptSectionLabel(source: AiVaultSessionPromptPreview['source'] | undefined): string {
+  if (source === 'first-user-prompt') {
+    return translate(
+      'auto.components.right.sidebar.AiVaultSessionDetails.firstPrompt',
+      'First prompt'
+    )
+  }
+  if (source === 'preview-window') {
+    return translate(
+      'auto.components.right.sidebar.AiVaultSessionDetails.recentPrompt',
+      'Recent prompt'
+    )
+  }
+  return translate('auto.components.right.sidebar.AiVaultSessionDetails.prompt', 'Prompt')
+}
+
+function copyPromptLabel(source: AiVaultSessionPromptPreview['source'] | undefined): string {
+  if (source === 'first-user-prompt') {
+    return translate(
+      'auto.components.right.sidebar.AiVaultSessionDetails.copyFirstPrompt',
+      'Copy first prompt'
+    )
+  }
+  if (source === 'preview-window') {
+    return translate(
+      'auto.components.right.sidebar.AiVaultSessionDetails.copyRecentPrompt',
+      'Copy recent prompt'
+    )
+  }
+  return translate('auto.components.right.sidebar.AiVaultSessionDetails.copyPrompt', 'Copy prompt')
+}
+
+function promptCopiedLabel(source: AiVaultSessionPromptPreview['source'] | undefined): string {
+  return source === 'first-user-prompt'
+    ? translate(
+        'auto.components.right.sidebar.AiVaultSessionDetails.firstPromptCopied',
+        'First prompt copied'
+      )
+    : translate(
+        'auto.components.right.sidebar.AiVaultSessionDetails.recentPromptCopied',
+        'Recent prompt copied'
+      )
+}
diff --git a/src/renderer/src/components/right-sidebar/ai-vault-session-display.test.ts b/src/renderer/src/components/right-sidebar/ai-vault-session-display.test.ts
index 2bd85ce29..3818e7f84 100644
--- a/src/renderer/src/components/right-sidebar/ai-vault-session-display.test.ts
+++ b/src/renderer/src/components/right-sidebar/ai-vault-session-display.test.ts
@@ -4,8 +4,8 @@ import {
   latestSessionConversationTurn,
   recentSessionConversationTurns,
   sessionDetailConversationTurns,
-  sessionFirstPrompt,
   sessionModelLabel,
+  sessionPromptPreview,
   sessionPreviewSearchText
 } from './ai-vault-session-display'
 
@@ -103,7 +103,7 @@ describe('ai vault session display', () => {
 
   it('prefers the stored firstUserPrompt over sliding preview turns', () => {
     expect(
-      sessionFirstPrompt({
+      sessionPromptPreview({
         ...baseSession,
         firstUserPrompt: 'Original long first prompt that scrolled out of preview',
         previewMessages: [
@@ -111,23 +111,28 @@ describe('ai vault session display', () => {
           { role: 'assistant', text: 'Later reply', timestamp: null }
         ]
       })
-    ).toBe('Original long first prompt that scrolled out of preview')
+    ).toEqual({
+      text: 'Original long first prompt that scrolled out of preview',
+      source: 'first-user-prompt'
+    })
   })
 
-  it('falls back to the earliest user preview turn when firstUserPrompt is absent', () => {
-    expect(sessionFirstPrompt(baseSession)).toBe('Please fix the flaky golden tests')
+  it('marks list-scan fallback text as a preview-window prompt', () => {
+    expect(sessionPromptPreview(baseSession)).toEqual({
+      text: 'Please fix the flaky golden tests',
+      source: 'preview-window'
+    })
     expect(
-      sessionFirstPrompt({
+      sessionPromptPreview({
         ...baseSession,
         previewMessages: [{ role: 'assistant', text: 'Only agent text', timestamp: null }]
       })
     ).toBeNull()
   })
-  // Remote/SSH rows never re-parse on demand, so a truncated window would
-  // otherwise show a RECENT ask permanently labelled as the first prompt.
-  it('refuses the preview fallback once the sliding window has truncated', () => {
+
+  it('keeps a truncated sliding-window fallback available as a recent prompt', () => {
     expect(
-      sessionFirstPrompt({
+      sessionPromptPreview({
         ...baseSession,
         previewMessagesTruncated: true,
         previewMessages: [
@@ -135,12 +140,15 @@ describe('ai vault session display', () => {
           { role: 'assistant', text: 'Later reply', timestamp: null }
         ]
       })
-    ).toBeNull()
+    ).toEqual({
+      text: 'Later user turn still in the preview window',
+      source: 'preview-window'
+    })
   })
 
   it('still prefers a stored firstUserPrompt when the window has truncated', () => {
     expect(
-      sessionFirstPrompt({
+      sessionPromptPreview({
         ...baseSession,
         previewMessagesTruncated: true,
         firstUserPrompt: 'Original long first prompt that scrolled out of preview',
@@ -148,6 +156,9 @@ describe('ai vault session display', () => {
           { role: 'user', text: 'Later user turn still in the preview window', timestamp: null }
         ]
       })
-    ).toBe('Original long first prompt that scrolled out of preview')
+    ).toEqual({
+      text: 'Original long first prompt that scrolled out of preview',
+      source: 'first-user-prompt'
+    })
   })
 })
diff --git a/src/renderer/src/components/right-sidebar/ai-vault-session-display.ts b/src/renderer/src/components/right-sidebar/ai-vault-session-display.ts
index 9d7f0eea6..888a2dc6d 100644
--- a/src/renderer/src/components/right-sidebar/ai-vault-session-display.ts
+++ b/src/renderer/src/components/right-sidebar/ai-vault-session-display.ts
@@ -1,11 +1,14 @@
 // Why: the pure preview/search-text core now lives in /shared so mobile can
 // reuse it (Metro can't import renderer). Re-export for renderer import parity.
-export type { AiVaultSessionDisplayTurn } from '../../../../shared/ai-vault-session-display'
+export type {
+  AiVaultSessionDisplayTurn,
+  AiVaultSessionPromptPreview
+} from '../../../../shared/ai-vault-session-display'
 export {
   latestSessionConversationTurn,
   recentSessionConversationTurns,
   sessionDetailConversationTurns,
-  sessionFirstPrompt,
   sessionModelLabel,
+  sessionPromptPreview,
   sessionPreviewSearchText
 } from '../../../../shared/ai-vault-session-display'
diff --git a/src/renderer/src/i18n/locales/en.json b/src/renderer/src/i18n/locales/en.json
index 3cb7acdff..ac2de3671 100644
--- a/src/renderer/src/i18n/locales/en.json
+++ b/src/renderer/src/i18n/locales/en.json
@@ -11337,9 +11337,14 @@
             "jumpToOriginalPane": "Jump to Original Pane",
             "worktree": "Worktree",
             "jumpToWorktree": "Jump to Worktree",
+            "prompt": "Prompt",
             "firstPrompt": "First prompt",
+            "recentPrompt": "Recent prompt",
             "firstPromptCopied": "First prompt copied",
+            "recentPromptCopied": "Recent prompt copied",
             "copyFirstPrompt": "Copy first prompt",
+            "copyRecentPrompt": "Copy recent prompt",
+            "copyPrompt": "Copy prompt",
             "copied": "Copied",
             "copy": "Copy",
             "noFirstPromptAvailable": "No first prompt available",
diff --git a/src/renderer/src/i18n/locales/es.json b/src/renderer/src/i18n/locales/es.json
index d13b704ba..cef83e8bd 100644
--- a/src/renderer/src/i18n/locales/es.json
+++ b/src/renderer/src/i18n/locales/es.json
@@ -11201,9 +11201,14 @@
             "emptyConversationDetail": "Esta sesión no tiene conversación guardada y no se puede reanudar.",
             "queuedMessages": "{{value0}} mensaje(s) en cola",
             "subagentTranscripts": "{{value0}} transcripción(es) de subagente",
+            "prompt": "Prompt",
             "firstPrompt": "Primer prompt",
+            "recentPrompt": "Prompt reciente",
             "firstPromptCopied": "Primer prompt copiado",
+            "recentPromptCopied": "Prompt reciente copiado",
             "copyFirstPrompt": "Copiar primer prompt",
+            "copyRecentPrompt": "Copiar prompt reciente",
+            "copyPrompt": "Copiar prompt",
             "copied": "Copiado",
             "copy": "Copiar",
             "noFirstPromptAvailable": "No hay primer prompt disponible",
diff --git a/src/renderer/src/i18n/locales/ja.json b/src/renderer/src/i18n/locales/ja.json
index 764f515a5..5610ec1d7 100644
--- a/src/renderer/src/i18n/locales/ja.json
+++ b/src/renderer/src/i18n/locales/ja.json
@@ -11201,9 +11201,14 @@
             "emptyConversationDetail": "このセッションには保存された会話がなく、再開できません。",
             "queuedMessages": "キュー内のメッセージ {{value0}} 件",
             "subagentTranscripts": "サブエージェントの履歴 {{value0}} 件",
+            "prompt": "プロンプト",
             "firstPrompt": "最初のプロンプト",
+            "recentPrompt": "最近のプロンプト",
             "firstPromptCopied": "最初のプロンプトをコピーしました",
+            "recentPromptCopied": "最近のプロンプトをコピーしました",
             "copyFirstPrompt": "最初のプロンプトをコピー",
+            "copyRecentPrompt": "最近のプロンプトをコピー",
+            "copyPrompt": "プロンプトをコピー",
             "copied": "コピーしました",
             "copy": "コピー",
             "noFirstPromptAvailable": "最初のプロンプトはありません",
diff --git a/src/renderer/src/i18n/locales/ko.json b/src/renderer/src/i18n/locales/ko.json
index 2b007dfdb..31c001734 100644
--- a/src/renderer/src/i18n/locales/ko.json
+++ b/src/renderer/src/i18n/locales/ko.json
@@ -11201,9 +11201,14 @@
             "emptyConversationDetail": "이 세션에는 저장된 대화가 없어 재개할 수 없습니다.",
             "queuedMessages": "대기 중인 메시지 {{value0}}개",
             "subagentTranscripts": "서브에이전트 대화 기록 {{value0}}개",
+            "prompt": "프롬프트",
             "firstPrompt": "첫 프롬프트",
+            "recentPrompt": "최근 프롬프트",
             "firstPromptCopied": "첫 프롬프트를 복사했습니다",
+            "recentPromptCopied": "최근 프롬프트를 복사했습니다",
             "copyFirstPrompt": "첫 프롬프트 복사",
+            "copyRecentPrompt": "최근 프롬프트 복사",
+            "copyPrompt": "프롬프트 복사",
             "copied": "복사됨",
             "copy": "복사",
             "noFirstPromptAvailable": "첫 프롬프트를 사용할 수 없습니다",
diff --git a/src/renderer/src/i18n/locales/zh.json b/src/renderer/src/i18n/locales/zh.json
index cbee13ada..647fea043 100644
--- a/src/renderer/src/i18n/locales/zh.json
+++ b/src/renderer/src/i18n/locales/zh.json
@@ -11213,9 +11213,14 @@
             "emptyConversationDetail": "此会话没有已保存的对话，无法恢复。",
             "queuedMessages": "{{value0}} 条排队消息",
             "subagentTranscripts": "{{value0}} 个子智能体记录",
+            "prompt": "提示",
             "firstPrompt": "首次提示",
+            "recentPrompt": "最近提示",
             "firstPromptCopied": "已复制首次提示",
+            "recentPromptCopied": "已复制最近提示",
             "copyFirstPrompt": "复制首次提示",
+            "copyRecentPrompt": "复制最近提示",
+            "copyPrompt": "复制提示",
             "copied": "已复制",
             "copy": "复制",
             "noFirstPromptAvailable": "没有可用的首次提示",
diff --git a/src/shared/ai-vault-session-display.ts b/src/shared/ai-vault-session-display.ts
index b45f43d2f..b105f7703 100644
--- a/src/shared/ai-vault-session-display.ts
+++ b/src/shared/ai-vault-session-display.ts
@@ -12,6 +12,11 @@ export type AiVaultSessionDisplayTurn = {
   timestamp: string | null
 }
 
+export type AiVaultSessionPromptPreview = {
+  text: string
+  source: 'first-user-prompt' | 'preview-window'
+}
+
 export function latestSessionConversationTurn(
   session: AiVaultSession
 ): AiVaultSessionDisplayTurn | null {
@@ -44,22 +49,11 @@ export function sessionDetailConversationTurns(
   return dedupeAdjacentConversationTurns(turns).slice(-limit)
 }
 
-/**
- * Placeholder text for the first-prompt row while the full body loads on demand.
- * List scans no longer store firstUserPrompt (payload/perf); this is preview-only.
- */
-export function sessionFirstPrompt(session: AiVaultSession): string | null {
-  // Prefer a stored full body when present (on-demand re-parse / tests).
+/** Prompt text with enough provenance for the renderer to avoid overclaiming. */
+export function sessionPromptPreview(session: AiVaultSession): AiVaultSessionPromptPreview | null {
   const stored = session.firstUserPrompt?.trim()
   if (stored) {
-    return stored
-  }
-
-  // Why: `previewMessages` is a newest-N sliding window. Once it has truncated,
-  // its earliest user turn is a RECENT ask, not the opening one — returning it
-  // would show (and copy) the wrong message under a "first prompt" label.
-  if (session.previewMessagesTruncated) {
-    return null
+    return { text: stored, source: 'first-user-prompt' }
   }
 
   for (const message of session.previewMessages) {
@@ -68,7 +62,7 @@ export function sessionFirstPrompt(session: AiVaultSession): string | null {
     }
     const text = message.text.trim()
     if (text) {
-      return text
+      return { text, source: 'preview-window' }
     }
   }