diff --git a/desktop/src/pages/Market.test.tsx b/desktop/src/pages/Market.test.tsx
index cc5dd497..42a96cab 100644
--- a/desktop/src/pages/Market.test.tsx
+++ b/desktop/src/pages/Market.test.tsx
@@ -10,7 +10,9 @@ vi.mock('../components/markdown/MarkdownRenderer', () => ({
 
 import { useMarketStore } from '../stores/marketStore'
 import { useSettingsStore } from '../stores/settingsStore'
+import { useSkillStore } from '../stores/skillStore'
 import type { NormalizedSkill, NormalizedSkillDetail } from '../types/market'
+import type { SkillDetail as LocalSkillDetail } from '../types/skill'
 import { Market } from './Market'
 
 function makeSkill(overrides: Partial<NormalizedSkill> = {}): NormalizedSkill {
@@ -40,9 +42,32 @@ function makeDetail(overrides: Partial<NormalizedSkillDetail> = {}): NormalizedS
   }
 }
 
+function makeLocalSkillDetail(overrides: Partial<LocalSkillDetail> = {}): LocalSkillDetail {
+  return {
+    meta: {
+      name: 'local-demo',
+      displayName: 'Local Demo',
+      description: 'An installed skill',
+      source: 'project',
+      userInvocable: true,
+      contentLength: 12,
+      hasDirectory: true,
+    },
+    tree: [],
+    files: [],
+    skillRoot: '/tmp/local-demo',
+    ...overrides,
+  }
+}
+
 beforeEach(() => {
   localStorage.clear()
   useSettingsStore.setState({ locale: 'en' })
+  useSkillStore.setState({
+    selectedSkill: null,
+    selectedSkillContext: null,
+    isDetailLoading: false,
+  })
   const detail = makeDetail()
   useMarketStore.setState({
     items: [makeSkill()],
@@ -108,4 +133,41 @@ describe('Market', () => {
       '…/skills/demo/',
     )
   })
+
+  it('opens the installed skill detail selected from the overview and returns to the market home', async () => {
+    render(<Market />)
+
+    act(() => {
+      useSkillStore.setState({
+        selectedSkill: makeLocalSkillDetail(),
+        selectedSkillReturnTab: 'skills',
+        selectedSkillContext: '',
+      })
+    })
+
+    expect(await screen.findByTestId('skill-detail-view')).toBeInTheDocument()
+    expect(screen.getByRole('heading', { name: 'Local Demo', level: 1 })).toBeInTheDocument()
+
+    fireEvent.click(screen.getByRole('button', { name: 'Back to list' }))
+    await waitFor(() => expect(screen.queryByTestId('skill-detail-view')).not.toBeInTheDocument())
+    expect(screen.getByRole('button', { name: 'Demo Skill' })).toBeInTheDocument()
+  })
+
+  it('keeps the market detail view authoritative when a market skill is selected', async () => {
+    render(<Market />)
+
+    fireEvent.click(screen.getByRole('button', { name: 'Demo Skill' }))
+    expect(await screen.findByRole('heading', { name: 'Demo Skill', level: 1 })).toBeInTheDocument()
+
+    act(() => {
+      useSkillStore.setState({
+        selectedSkill: makeLocalSkillDetail(),
+        selectedSkillReturnTab: 'skills',
+        selectedSkillContext: '',
+      })
+    })
+
+    expect(screen.queryByRole('heading', { name: 'Local Demo' })).not.toBeInTheDocument()
+    expect(screen.getByRole('heading', { name: 'Demo Skill', level: 1 })).toBeInTheDocument()
+  })
 })
diff --git a/desktop/src/pages/Market.tsx b/desktop/src/pages/Market.tsx
index 682d5bf0..5b8826dc 100644
--- a/desktop/src/pages/Market.tsx
+++ b/desktop/src/pages/Market.tsx
@@ -1,12 +1,14 @@
 import { useEffect, useRef, useState } from 'react'
 import { useTranslation } from '../i18n'
 import { useMarketStore } from '../stores/marketStore'
+import { useSessionStore } from '../stores/sessionStore'
 import { useSkillStore } from '../stores/skillStore'
 import { useUIStore } from '../stores/uiStore'
 import { InstallConfirmDialog } from '../components/market/InstallConfirmDialog'
 import { MarketHome } from '../components/market/MarketHome'
 import { MarketSkillDetail } from '../components/market/MarketSkillDetail'
 import { ConfirmDialog } from '../components/shared/ConfirmDialog'
+import { SkillDetail } from '../components/skills/SkillDetail'
 import type { NormalizedSkill } from '../types/market'
 
 function focusSkillControl(id: string, preferred: 'action' | 'open' = 'action') {
@@ -28,6 +30,15 @@ export function Market() {
   const t = useTranslation()
   const selectedId = useMarketStore((s) => s.selectedId)
   const installingIds = useMarketStore((s) => s.installingIds)
+  // InstalledSkillsOverview 点击已装技能只写 skillStore.selectedSkill,
+  // 这里把它接成真正的详情视图,否则点击没有任何界面反馈
+  const selectedInstalledSkill = useSkillStore((s) => s.selectedSkill)
+  const selectedInstalledContext = useSkillStore((s) => s.selectedSkillContext)
+  const isInstalledDetailLoading = useSkillStore((s) => s.isDetailLoading)
+  const sessions = useSessionStore((s) => s.sessions)
+  const activeSessionId = useSessionStore((s) => s.activeSessionId)
+  const currentSkillContext = sessions.find((session) => session.id === activeSessionId)?.workDir ?? ''
+  const showInstalledDetail = Boolean(selectedInstalledSkill) || isInstalledDetailLoading
   const [confirmInstall, setConfirmInstall] = useState<NormalizedSkill | null>(null)
   const [confirmUninstall, setConfirmUninstall] = useState<NormalizedSkill | null>(null)
   const lastOpenedIdRef = useRef<string | null>(null)
@@ -40,6 +51,17 @@ export function Market() {
     previousSelectedIdRef.current = selectedId
   }, [selectedId])
 
+  // 与 Settings → Skills 一致:活跃项目切换后,丢弃上一个项目上下文的详情
+  useEffect(() => {
+    if (
+      (selectedInstalledSkill || isInstalledDetailLoading)
+      && selectedInstalledContext !== null
+      && selectedInstalledContext !== currentSkillContext
+    ) {
+      useSkillStore.getState().clearSelection()
+    }
+  }, [currentSkillContext, isInstalledDetailLoading, selectedInstalledContext, selectedInstalledSkill])
+
   const findSkill = (id: string): NormalizedSkill | null => {
     const state = useMarketStore.getState()
     if (state.detail?.id === id) return state.detail
@@ -108,13 +130,19 @@ export function Market() {
       {selectedId ? (
         <MarketSkillDetail onRequestInstall={requestInstall} onRequestUninstall={requestUninstall} />
       ) : (
-        <MarketHome
-          onRequestInstall={requestInstall}
-          onOpenSkill={(id) => {
-            lastOpenedIdRef.current = id
-            void useMarketStore.getState().openDetail(id)
-          }}
-        />
+        <>
+          {showInstalledDetail && <SkillDetail />}
+          {/* hidden 而非卸载:保住 MarketHome/InstalledSkillsOverview 的搜索与折叠状态 */}
+          <div hidden={showInstalledDetail} className="flex min-h-0 flex-1 flex-col">
+            <MarketHome
+              onRequestInstall={requestInstall}
+              onOpenSkill={(id) => {
+                lastOpenedIdRef.current = id
+                void useMarketStore.getState().openDetail(id)
+              }}
+            />
+          </div>
+        </>
       )}
 
       <InstallConfirmDialog