diff --git a/src/renderer/src/components/right-sidebar/ChecksPanel.tsx b/src/renderer/src/components/right-sidebar/ChecksPanel.tsx
index 0682c1b0790..9a6c264c2cf 100644
--- a/src/renderer/src/components/right-sidebar/ChecksPanel.tsx
+++ b/src/renderer/src/components/right-sidebar/ChecksPanel.tsx
@@ -25,6 +25,7 @@ import { useActiveWorktree, useRepoById } from '@/store/selectors'
 import { useChecksPanelTerminalWorktree } from './use-checks-panel-terminal-worktree'
 import { cn } from '@/lib/utils'
 import { openHttpLink } from '@/lib/http-link-routing'
+import { isRightSidebarRevealed } from '@/lib/right-sidebar-visibility'
 import { Button } from '@/components/ui/button'
 import { DetachedHeadBadge } from '@/components/DetachedHeadBadge'
 import {
@@ -374,9 +375,9 @@ export default function ChecksPanel(): React.JSX.Element {
   // Why: the sidebar stays mounted when closed (for performance). Gate
   // polling on visibility so we don't fetch checks/comments — or poll the
   // terminal cwd — in the background when the panel isn't visible.
-  const rightSidebarOpen = useAppStore((s) => s.rightSidebarOpen)
+  const rightSidebarRevealed = useAppStore(isRightSidebarRevealed)
   const rightSidebarTab = useAppStore((s) => s.rightSidebarTab)
-  const isPanelVisible = rightSidebarOpen && rightSidebarTab === 'checks'
+  const isPanelVisible = rightSidebarRevealed && rightSidebarTab === 'checks'
 
   // Follow the active terminal's cwd so linked-PR/checks state tracks the
   // worktree the terminal is actually operating in (e.g. across a stack),
diff --git a/src/renderer/src/components/right-sidebar/FileExplorer.tsx b/src/renderer/src/components/right-sidebar/FileExplorer.tsx
index fb91c21963b..4ebb33fef6a 100644
--- a/src/renderer/src/components/right-sidebar/FileExplorer.tsx
+++ b/src/renderer/src/components/right-sidebar/FileExplorer.tsx
@@ -55,6 +55,7 @@ import { CLOSE_ALL_CONTEXT_MENUS_EVENT } from '@/components/tab-bar/SortableTab'
 import type { RightSidebarExplorerView } from '../../../../shared/types'
 import { getRuntimeEnvironmentIdForWorktree } from '@/lib/worktree-runtime-owner'
 import { createNewTerminalTab } from '@/components/terminal/terminal-tab-actions'
+import { isRightSidebarRevealed } from '@/lib/right-sidebar-visibility'
 
 function FileExplorerFiles(): React.JSX.Element {
   const explorerView = useAppStore((s) => s.rightSidebarExplorerView)
@@ -97,7 +98,7 @@ function FileExplorerFiles(): React.JSX.Element {
   const openFiles = useAppStore((s) => s.openFiles)
   const closeFile = useAppStore((s) => s.closeFile)
   const openModal = useAppStore((s) => s.openModal)
-  const rightSidebarOpen = useAppStore((s) => s.rightSidebarOpen)
+  const rightSidebarRevealed = useAppStore(isRightSidebarRevealed)
   const showDotfiles = useAppStore((s) =>
     activeWorktreeId ? (s.showDotfilesByWorktree[activeWorktreeId] ?? true) : true
   )
@@ -119,7 +120,7 @@ function FileExplorerFiles(): React.JSX.Element {
   const isFilesViewActive = explorerView === 'files'
   const visibleFilesWorktreePath = getVisibleFileExplorerWorktreePath({
     explorerView,
-    rightSidebarOpen,
+    rightSidebarOpen: rightSidebarRevealed,
     worktreePath
   })
   const repoName = activeRepo?.displayName ?? (worktreePath ? basename(worktreePath) : '')
diff --git a/src/renderer/src/components/right-sidebar/SourceControl.tsx b/src/renderer/src/components/right-sidebar/SourceControl.tsx
index aef619545ea..742e38bc714 100644
--- a/src/renderer/src/components/right-sidebar/SourceControl.tsx
+++ b/src/renderer/src/components/right-sidebar/SourceControl.tsx
@@ -41,6 +41,7 @@ import { detectLanguage } from '@/lib/language-detect'
 import { basename, dirname, joinPath } from '@/lib/path'
 import { cn } from '@/lib/utils'
 import { WORKSPACE_FILE_PATH_MIME } from '@/lib/workspace-file-drag'
+import { isRightSidebarRevealed } from '@/lib/right-sidebar-visibility'
 import { isFolderRepo } from '../../../../shared/repo-kind'
 import { Tooltip, TooltipTrigger, TooltipContent, TooltipProvider } from '@/components/ui/tooltip'
 import { Button } from '@/components/ui/button'
@@ -1228,12 +1229,12 @@ function SourceControlInner(): React.JSX.Element {
     recordKey: activePullRequestGenerationKey,
     record: activePullRequestGenerationRecord
   })
-  const rightSidebarOpen = useAppStore((s) => s.rightSidebarOpen)
-  // Why: gate polling on both the active tab AND the sidebar being open.
+  const rightSidebarRevealed = useAppStore(isRightSidebarRevealed)
+  // Why: gate polling on both the active tab AND the sidebar being revealed.
   // The sidebar now stays mounted when closed (for performance), so without
   // this guard the branchCompare interval and PR fetch would keep running
   // with no visible consumer, wasting git process spawns and API calls.
-  const isBranchVisible = rightSidebarTab === 'source-control' && rightSidebarOpen
+  const isBranchVisible = rightSidebarTab === 'source-control' && rightSidebarRevealed
 
   const refreshActiveGitStatus = useCallback(async (): Promise<void> => {
     if (!activeWorktreeId || !worktreePath || isFolder) {
diff --git a/src/renderer/src/components/right-sidebar/right-sidebar-edge-peek.test.tsx b/src/renderer/src/components/right-sidebar/right-sidebar-edge-peek.test.tsx
index a50b554564f..87b5987ce6c 100644
--- a/src/renderer/src/components/right-sidebar/right-sidebar-edge-peek.test.tsx
+++ b/src/renderer/src/components/right-sidebar/right-sidebar-edge-peek.test.tsx
@@ -69,6 +69,41 @@ describe('RightSidebarEdgePeekZone', () => {
     expect(useAppStore.getState().rightSidebarPeek).toBe(false)
   })
 
+  it('does not arm while a mouse button is pressed at the edge', () => {
+    render(<RightSidebarEdgePeekZone />)
+
+    act(() => {
+      fireEvent.mouseMove(window, {
+        clientX: RIGHT_EDGE_X,
+        clientY: BELOW_TITLEBAR_Y,
+        buttons: 1
+      })
+    })
+    vi.advanceTimersByTime(PEEK_OPEN_DELAY_MS)
+
+    expect(useAppStore.getState().rightSidebarPeek).toBe(false)
+  })
+
+  it('cancels an armed peek when a scrollbar drag starts', () => {
+    render(<RightSidebarEdgePeekZone />)
+
+    moveMouse(RIGHT_EDGE_X, BELOW_TITLEBAR_Y)
+    fireEvent.mouseDown(window, { buttons: 1 })
+    vi.advanceTimersByTime(PEEK_OPEN_DELAY_MS)
+
+    expect(useAppStore.getState().rightSidebarPeek).toBe(false)
+  })
+
+  it('cancels an armed peek when the window loses focus', () => {
+    render(<RightSidebarEdgePeekZone />)
+
+    moveMouse(RIGHT_EDGE_X, BELOW_TITLEBAR_Y)
+    fireEvent.blur(window)
+    vi.advanceTimersByTime(PEEK_OPEN_DELAY_MS)
+
+    expect(useAppStore.getState().rightSidebarPeek).toBe(false)
+  })
+
   it('ignores the top titlebar zone so window controls stay clickable', () => {
     render(<RightSidebarEdgePeekZone />)
 
diff --git a/src/renderer/src/components/right-sidebar/right-sidebar-edge-peek.tsx b/src/renderer/src/components/right-sidebar/right-sidebar-edge-peek.tsx
index 75adbdda394..3d8eea38675 100644
--- a/src/renderer/src/components/right-sidebar/right-sidebar-edge-peek.tsx
+++ b/src/renderer/src/components/right-sidebar/right-sidebar-edge-peek.tsx
@@ -55,6 +55,12 @@ export function RightSidebarEdgePeekZone(): React.JSX.Element | null {
       }
     }
     const onMouseMove = (event: MouseEvent): void => {
+      // Why: scrollbar and resize drags can remain in the edge band longer
+      // than the hover delay; pressed buttons must never arm an overlay.
+      if (event.buttons !== 0) {
+        clearOpenTimer()
+        return
+      }
       // Why: exclude the top 36px titlebar row so the peek never arms over
       // window controls (Windows/Linux custom chrome).
       const inEdgeBand =
@@ -72,9 +78,13 @@ export function RightSidebarEdgePeekZone(): React.JSX.Element | null {
       }
     }
     window.addEventListener('mousemove', onMouseMove)
+    window.addEventListener('mousedown', clearOpenTimer)
+    window.addEventListener('blur', clearOpenTimer)
     return () => {
       clearOpenTimer()
       window.removeEventListener('mousemove', onMouseMove)
+      window.removeEventListener('mousedown', clearOpenTimer)
+      window.removeEventListener('blur', clearOpenTimer)
     }
   }, [edgePeekEnabled, rightSidebarOpen, rightSidebarPeek, setRightSidebarPeek])
 
diff --git a/src/renderer/src/components/right-sidebar/useFileExplorerKeys.ts b/src/renderer/src/components/right-sidebar/useFileExplorerKeys.ts
index 22b58fb568b..b1602d45b49 100644
--- a/src/renderer/src/components/right-sidebar/useFileExplorerKeys.ts
+++ b/src/renderer/src/components/right-sidebar/useFileExplorerKeys.ts
@@ -20,6 +20,7 @@ import {
 import { keybindingMatchesAction } from '../../../../shared/keybindings'
 import { translate } from '@/i18n/i18n'
 import { isEditableTarget } from '@/lib/editable-target'
+import { isRightSidebarRevealed } from '@/lib/right-sidebar-visibility'
 
 export function shouldIgnoreFileExplorerKeyTarget(target: EventTarget | null): boolean {
   return (
@@ -52,7 +53,7 @@ export function useFileExplorerKeys(opts: {
   scrollToIndex: (index: number) => void
   activeWorktreeId: string | null
 }): void {
-  const rightSidebarOpen = useAppStore((s) => s.rightSidebarOpen)
+  const rightSidebarRevealed = useAppStore(isRightSidebarRevealed)
   const rightSidebarTab = useAppStore((s) => s.rightSidebarTab)
   const rightSidebarExplorerView = useAppStore((s) => s.rightSidebarExplorerView)
   const keybindings = useAppStore((s) => s.keybindings)
@@ -139,7 +140,7 @@ export function useFileExplorerKeys(opts: {
 
     const onKeyDown = (e: KeyboardEvent): void => {
       if (
-        !rightSidebarOpen ||
+        !rightSidebarRevealed ||
         rightSidebarTab !== 'explorer' ||
         rightSidebarExplorerView !== 'files'
       ) {
@@ -290,5 +291,11 @@ export function useFileExplorerKeys(opts: {
 
     window.addEventListener('keydown', onKeyDown, { capture: true })
     return () => window.removeEventListener('keydown', onKeyDown, { capture: true })
-  }, [keybindings, rightSidebarExplorerView, rightSidebarOpen, rightSidebarTab, opts.containerRef])
+  }, [
+    keybindings,
+    rightSidebarExplorerView,
+    rightSidebarRevealed,
+    rightSidebarTab,
+    opts.containerRef
+  ])
 }
diff --git a/src/renderer/src/components/right-sidebar/useGitStatusPolling.test.ts b/src/renderer/src/components/right-sidebar/useGitStatusPolling.test.ts
index 5c4d57338a3..4f18cec85a2 100644
--- a/src/renderer/src/components/right-sidebar/useGitStatusPolling.test.ts
+++ b/src/renderer/src/components/right-sidebar/useGitStatusPolling.test.ts
@@ -15,6 +15,7 @@ type PollState = {
   gitConflictOperationByWorktree: Record<string, unknown>
   sshConnectionStates: Map<string, { status: string }>
   rightSidebarOpen?: boolean
+  rightSidebarPeek?: boolean
   rightSidebarTab?: string
   rightSidebarExplorerView?: string
   openFiles?: unknown[]
@@ -254,6 +255,27 @@ describe('useGitStatusPolling', () => {
     expect(globalThis.setInterval).toHaveBeenCalledWith(expect.any(Function), 30_000)
   })
 
+  it('uses the interactive git status cadence while the sidebar is peeked', async () => {
+    const { gitStatus } = await usePollingOnce(
+      {
+        entries: [],
+        conflictOperation: 'unknown',
+        head: 'abc123',
+        branch: 'refs/heads/main'
+      },
+      {
+        stateOverrides: {
+          rightSidebarOpen: false,
+          rightSidebarPeek: true,
+          openFiles: []
+        }
+      }
+    )
+
+    expect(gitStatus).toHaveBeenCalledTimes(1)
+    expect(globalThis.setInterval).toHaveBeenCalledWith(expect.any(Function), 3000)
+  })
+
   it('does not install the visible git status poll while disabled', async () => {
     const { state, gitStatus } = await usePollingOnce(
       {
diff --git a/src/renderer/src/components/right-sidebar/useGitStatusPolling.ts b/src/renderer/src/components/right-sidebar/useGitStatusPolling.ts
index 895b69012a1..70d64088a48 100644
--- a/src/renderer/src/components/right-sidebar/useGitStatusPolling.ts
+++ b/src/renderer/src/components/right-sidebar/useGitStatusPolling.ts
@@ -15,6 +15,7 @@ import {
 import { getRightSidebarWorktreeRuntimeSettings } from './file-explorer-runtime-owner'
 import { useGitStatusFileWatchRefresh } from './git-status-file-watch-refresh'
 import { useGitStatusPushSignalRefresh } from './git-status-push-signal-refresh'
+import { isRightSidebarRevealed } from '@/lib/right-sidebar-visibility'
 
 const MIN_STATUS_REFRESH_INTERVAL_MS = 3000
 const INTERACTIVE_STATUS_POLL_INTERVAL_MS = MIN_STATUS_REFRESH_INTERVAL_MS
@@ -36,7 +37,7 @@ export function useGitStatusPolling(options: { enabled?: boolean } = {}): void {
   const setConflictOperation = useAppStore((s) => s.setConflictOperation)
   const conflictOperationByWorktree = useAppStore((s) => s.gitConflictOperationByWorktree)
   const sshConnectionStates = useAppStore((s) => s.sshConnectionStates)
-  const rightSidebarOpen = useAppStore((s) => s.rightSidebarOpen)
+  const rightSidebarRevealed = useAppStore(isRightSidebarRevealed)
   const rightSidebarTab = useAppStore((s) => s.rightSidebarTab)
   const rightSidebarExplorerView = useAppStore((s) => s.rightSidebarExplorerView)
   const openFiles = useAppStore((s) => s.openFiles)
@@ -56,7 +57,7 @@ export function useGitStatusPolling(options: { enabled?: boolean } = {}): void {
   const activeGitStatusPollingArgs = {
     activeWorktreeId,
     worktreePath,
-    rightSidebarOpen,
+    rightSidebarOpen: rightSidebarRevealed,
     rightSidebarTab,
     rightSidebarExplorerView,
     openFiles
@@ -179,7 +180,7 @@ export function useGitStatusPolling(options: { enabled?: boolean } = {}): void {
     isConnectionReady,
     openFiles,
     rightSidebarExplorerView,
-    rightSidebarOpen,
+    rightSidebarOpen: rightSidebarRevealed,
     rightSidebarTab,
     worktreePath
   })
diff --git a/src/renderer/src/hooks/useEditorExternalWatch-targets.test.ts b/src/renderer/src/hooks/useEditorExternalWatch-targets.test.ts
index 1e5f5e45e35..63bc4039f5b 100644
--- a/src/renderer/src/hooks/useEditorExternalWatch-targets.test.ts
+++ b/src/renderer/src/hooks/useEditorExternalWatch-targets.test.ts
@@ -59,6 +59,7 @@ describe('getEditorExternalWatchTargets', () => {
     activeWorktreeId?: string | null
     runtimeEnvironmentId?: string | null
     rightSidebarOpen?: boolean
+    rightSidebarPeek?: boolean
     rightSidebarTab?: EditorExternalWatchTargetState['rightSidebarTab']
     rightSidebarExplorerView?: EditorExternalWatchTargetState['rightSidebarExplorerView']
     gitStatusHugeByWorktree?: EditorExternalWatchTargetState['gitStatusHugeByWorktree']
@@ -69,6 +70,7 @@ describe('getEditorExternalWatchTargets', () => {
     repos: [args.repo],
     activeWorktreeId: args.activeWorktreeId ?? null,
     rightSidebarOpen: args.rightSidebarOpen ?? false,
+    rightSidebarPeek: args.rightSidebarPeek ?? false,
     rightSidebarTab: args.rightSidebarTab ?? 'explorer',
     rightSidebarExplorerView: args.rightSidebarExplorerView ?? 'files',
     gitStatusHugeByWorktree: args.gitStatusHugeByWorktree ?? {},
@@ -136,6 +138,29 @@ describe('getEditorExternalWatchTargets', () => {
     ])
   })
 
+  it('keeps watching the active worktree while the file explorer is peeked', () => {
+    const repo = makeRepo('repo-active-peeked')
+    const worktree = makeWorktree(repo.id, 'wt-active-peeked')
+
+    expect(
+      getEditorExternalWatchTargets(
+        makeState({
+          repo,
+          worktree,
+          activeWorktreeId: worktree.id,
+          rightSidebarPeek: true
+        })
+      ).targets
+    ).toEqual([
+      {
+        worktreeId: 'wt-active-peeked',
+        worktreePath: '/repo-active-peeked/worktree',
+        connectionId: undefined,
+        runtimeEnvironmentId: null
+      }
+    ])
+  })
+
   it('does not watch the active worktree while Explorer search is visible', () => {
     const repo = makeRepo('repo-active-search')
     const worktree = makeWorktree(repo.id, 'wt-active-search')
diff --git a/src/renderer/src/hooks/useEditorExternalWatch.ts b/src/renderer/src/hooks/useEditorExternalWatch.ts
index 9fd18202b98..ac9dd41c7fc 100644
--- a/src/renderer/src/hooks/useEditorExternalWatch.ts
+++ b/src/renderer/src/hooks/useEditorExternalWatch.ts
@@ -30,6 +30,7 @@ import {
 } from './worktree-file-change-event'
 import { isGitRepoKind } from '../../../shared/repo-kind'
 import { markFileChangedOnDisk } from '@/components/editor/editor-changed-on-disk-mark'
+import { isRightSidebarRevealed } from '@/lib/right-sidebar-visibility'
 
 // Why: atomic-write patterns (Claude Code's Edit tool, editors like vim,
 // VSCode) land as a short burst of `update` events — or `delete + create` on
@@ -96,6 +97,7 @@ export type EditorExternalWatchTargetState = Pick<
   | 'activeWorktreeId'
   | 'settings'
   | 'rightSidebarOpen'
+  | 'rightSidebarPeek'
   | 'rightSidebarTab'
   | 'rightSidebarExplorerView'
   | 'gitStatusHugeByWorktree'
@@ -107,7 +109,7 @@ let cachedWorktreesByRepo: AppState['worktreesByRepo'] | null = null
 let cachedRepos: AppState['repos'] | null = null
 let cachedActiveWorktreeId: string | null = null
 let cachedRuntimeEnvironmentId: string | undefined
-let cachedRightSidebarOpen: boolean | null = null
+let cachedRightSidebarRevealed: boolean | null = null
 let cachedRightSidebarTab: AppState['rightSidebarTab'] | null = null
 let cachedRightSidebarExplorerView: AppState['rightSidebarExplorerView'] | null = null
 let cachedGitStatusHugeByWorktree: AppState['gitStatusHugeByWorktree'] | null = null
@@ -129,13 +131,14 @@ export function getEditorExternalWatchTargets(
   state: EditorExternalWatchTargetState
 ): WatchedTargetsSnapshot {
   const runtimeEnvironmentId = state.settings?.activeRuntimeEnvironmentId?.trim() || undefined
+  const rightSidebarRevealed = isRightSidebarRevealed(state)
   if (
     cachedOpenFiles === state.openFiles &&
     cachedWorktreesByRepo === state.worktreesByRepo &&
     cachedRepos === state.repos &&
     cachedActiveWorktreeId === state.activeWorktreeId &&
     cachedRuntimeEnvironmentId === runtimeEnvironmentId &&
-    cachedRightSidebarOpen === state.rightSidebarOpen &&
+    cachedRightSidebarRevealed === rightSidebarRevealed &&
     cachedRightSidebarTab === state.rightSidebarTab &&
     cachedRightSidebarExplorerView === state.rightSidebarExplorerView &&
     cachedGitStatusHugeByWorktree === state.gitStatusHugeByWorktree &&
@@ -175,7 +178,7 @@ export function getEditorExternalWatchTargets(
       state.sshConnectionStates.get(activeRepo.connectionId)?.status === 'connected')
   const activeWorktreeNeedsSidebarWatch =
     activeWorktreeId !== null &&
-    state.rightSidebarOpen &&
+    rightSidebarRevealed &&
     ((state.rightSidebarTab === 'explorer' && state.rightSidebarExplorerView === 'files') ||
       (state.rightSidebarTab === 'source-control' && sourceControlCanConsumeWatch))
   if (activeWorktreeNeedsSidebarWatch) {
@@ -222,7 +225,7 @@ export function getEditorExternalWatchTargets(
   cachedRepos = state.repos
   cachedActiveWorktreeId = state.activeWorktreeId
   cachedRuntimeEnvironmentId = runtimeEnvironmentId
-  cachedRightSidebarOpen = state.rightSidebarOpen
+  cachedRightSidebarRevealed = rightSidebarRevealed
   cachedRightSidebarTab = state.rightSidebarTab
   cachedRightSidebarExplorerView = state.rightSidebarExplorerView
   cachedGitStatusHugeByWorktree = state.gitStatusHugeByWorktree
diff --git a/src/renderer/src/i18n/locales/en.json b/src/renderer/src/i18n/locales/en.json
index 570c20c6c54..3beec152fc5 100644
--- a/src/renderer/src/i18n/locales/en.json
+++ b/src/renderer/src/i18n/locales/en.json
@@ -123,7 +123,8 @@
       "fe21e8f6f5": "Go back ({{value0}})",
       "064bd07810": "Go back",
       "ce37cf5279": "Toggle sidebar ({{value0}})",
-      "e4b9e7dff7": "Toggle sidebar"
+      "e4b9e7dff7": "Toggle sidebar",
+      "rightSidebarEdgePeekHint": "Hover the right edge to peek"
     },
     "web": {
       "WebConnect": {
@@ -7120,6 +7121,10 @@
               "cardLayout": "card layout",
               "workspaceOptions": "workspace options",
               "detailed": "detailed"
+            },
+            "rightSidebarEdgePeek": {
+              "title": "Right Sidebar Edge Peek",
+              "description": "Hover the window edge to temporarily reveal a closed right sidebar."
             }
           }
         },
@@ -9540,7 +9545,8 @@
             "fc3095d2ed": "explorer",
             "aiVaultSessionHistory": "Agents",
             "folderWorkspaces": "Attached worktrees",
-            "parentPrChecks": "PR Checks"
+            "parentPrChecks": "PR Checks",
+            "edgePeekHint": "Hover the right edge to peek"
           },
           "right": {
             "panel": {
@@ -9925,6 +9931,14 @@
             "archivedJumpUnavailable": "This session is in an archived worktree.",
             "noActiveWorktreeMatch": "No active worktree matches this session.",
             "noActiveWorktreeTarget": "No active worktree is available."
+          },
+          "edge": {
+            "peek": {
+              "tip": {
+                "title": "Hover the right edge to peek",
+                "description": "The right sidebar slides over the editor without reflowing it. Click the toggle or use the shortcut to pin it open. Change this anytime in Settings › Appearance."
+              }
+            }
           }
         }
       },
diff --git a/src/renderer/src/i18n/locales/es.json b/src/renderer/src/i18n/locales/es.json
index 2543c3ce6d3..b3d76c89306 100644
--- a/src/renderer/src/i18n/locales/es.json
+++ b/src/renderer/src/i18n/locales/es.json
@@ -123,7 +123,8 @@
       "fe21e8f6f5": "Volver ({{value0}})",
       "064bd07810": "Volver",
       "ce37cf5279": "Alternar barra lateral ({{value0}})",
-      "e4b9e7dff7": "Alternar barra lateral"
+      "e4b9e7dff7": "Alternar barra lateral",
+      "rightSidebarEdgePeekHint": "Hover the right edge to peek"
     },
     "web": {
       "WebConnect": {
@@ -7083,7 +7084,11 @@
               "detailed": "detallado"
             },
             "9a115966d3": "Minimizar a la bandeja al cerrar",
-            "4d5b9427b5": "Cuando está activado, cerrar la ventana mantiene Orca en ejecución en la bandeja del sistema en lugar de salir."
+            "4d5b9427b5": "Cuando está activado, cerrar la ventana mantiene Orca en ejecución en la bandeja del sistema en lugar de salir.",
+            "rightSidebarEdgePeek": {
+              "title": "Right Sidebar Edge Peek",
+              "description": "Hover the window edge to temporarily reveal a closed right sidebar."
+            }
           }
         },
         "auto": {
@@ -9540,7 +9545,8 @@
             "fc3095d2ed": "explorador",
             "aiVaultSessionHistory": "Agentes",
             "folderWorkspaces": "Worktrees adjuntos",
-            "parentPrChecks": "Checks de PR"
+            "parentPrChecks": "Checks de PR",
+            "edgePeekHint": "Hover the right edge to peek"
           },
           "right": {
             "panel": {
@@ -9925,6 +9931,14 @@
             "archivedJumpUnavailable": "Esta sesión está en un worktree archivado.",
             "noActiveWorktreeMatch": "Ningún worktree activo coincide con esta sesión.",
             "noActiveWorktreeTarget": "No hay ningún worktree activo disponible."
+          },
+          "edge": {
+            "peek": {
+              "tip": {
+                "title": "Hover the right edge to peek",
+                "description": "The right sidebar slides over the editor without reflowing it. Click the toggle or use the shortcut to pin it open. Change this anytime in Settings › Appearance."
+              }
+            }
           }
         }
       },
diff --git a/src/renderer/src/i18n/locales/ja.json b/src/renderer/src/i18n/locales/ja.json
index 9727ae4adc4..1d51fa74932 100644
--- a/src/renderer/src/i18n/locales/ja.json
+++ b/src/renderer/src/i18n/locales/ja.json
@@ -123,7 +123,8 @@
       "fe21e8f6f5": "戻る ({{value0}})",
       "064bd07810": "戻る",
       "ce37cf5279": "サイドバーの切り替え ({{value0}})",
-      "e4b9e7dff7": "サイドバーの切り替え"
+      "e4b9e7dff7": "サイドバーの切り替え",
+      "rightSidebarEdgePeekHint": "Hover the right edge to peek"
     },
     "web": {
       "WebConnect": {
@@ -7105,7 +7106,11 @@
               "detailed": "詳細"
             },
             "9a115966d3": "閉じるときにトレイへ最小化",
-            "4d5b9427b5": "有効にすると、ウィンドウを閉じてもOrcaは終了せず、システムトレイで実行を続けます。"
+            "4d5b9427b5": "有効にすると、ウィンドウを閉じてもOrcaは終了せず、システムトレイで実行を続けます。",
+            "rightSidebarEdgePeek": {
+              "title": "Right Sidebar Edge Peek",
+              "description": "Hover the window edge to temporarily reveal a closed right sidebar."
+            }
           }
         },
         "auto": {
@@ -9540,7 +9545,8 @@
             "fc3095d2ed": "エクスプローラ",
             "aiVaultSessionHistory": "エージェント",
             "folderWorkspaces": "添付ワークツリー",
-            "parentPrChecks": "PR チェック"
+            "parentPrChecks": "PR チェック",
+            "edgePeekHint": "Hover the right edge to peek"
           },
           "right": {
             "panel": {
@@ -9925,6 +9931,14 @@
             "archivedJumpUnavailable": "このセッションはアーカイブされたワークツリーにあります。",
             "noActiveWorktreeMatch": "このセッションに一致するアクティブなワークツリーはありません。",
             "noActiveWorktreeTarget": "利用可能なアクティブなワークツリーはありません。"
+          },
+          "edge": {
+            "peek": {
+              "tip": {
+                "title": "Hover the right edge to peek",
+                "description": "The right sidebar slides over the editor without reflowing it. Click the toggle or use the shortcut to pin it open. Change this anytime in Settings › Appearance."
+              }
+            }
           }
         }
       },
diff --git a/src/renderer/src/i18n/locales/ko.json b/src/renderer/src/i18n/locales/ko.json
index bff86bf9af6..bbb6a2944f7 100644
--- a/src/renderer/src/i18n/locales/ko.json
+++ b/src/renderer/src/i18n/locales/ko.json
@@ -123,7 +123,8 @@
       "fe21e8f6f5": "돌아가기({{value0}})",
       "064bd07810": "돌아가기",
       "ce37cf5279": "사이드바 표시/숨기기({{value0}})",
-      "e4b9e7dff7": "사이드바 표시/숨기기"
+      "e4b9e7dff7": "사이드바 표시/숨기기",
+      "rightSidebarEdgePeekHint": "Hover the right edge to peek"
     },
     "web": {
       "WebConnect": {
@@ -7068,6 +7069,10 @@
               "cardLayout": "카드 레이아웃",
               "workspaceOptions": "워크스페이스 옵션",
               "detailed": "상세"
+            },
+            "rightSidebarEdgePeek": {
+              "title": "Right Sidebar Edge Peek",
+              "description": "Hover the window edge to temporarily reveal a closed right sidebar."
             }
           }
         },
@@ -9540,7 +9545,8 @@
             "fc3095d2ed": "탐색기",
             "aiVaultSessionHistory": "에이전트",
             "folderWorkspaces": "연결된 워크트리",
-            "parentPrChecks": "PR 검사"
+            "parentPrChecks": "PR 검사",
+            "edgePeekHint": "Hover the right edge to peek"
           },
           "right": {
             "panel": {
@@ -9925,6 +9931,14 @@
             "archivedJumpUnavailable": "이 세션은 보관된 작업 트리에 있습니다.",
             "noActiveWorktreeMatch": "이 세션과 일치하는 활성 작업 트리가 없습니다.",
             "noActiveWorktreeTarget": "사용 가능한 활성 작업 트리가 없습니다."
+          },
+          "edge": {
+            "peek": {
+              "tip": {
+                "title": "Hover the right edge to peek",
+                "description": "The right sidebar slides over the editor without reflowing it. Click the toggle or use the shortcut to pin it open. Change this anytime in Settings › Appearance."
+              }
+            }
           }
         }
       },
diff --git a/src/renderer/src/i18n/locales/zh.json b/src/renderer/src/i18n/locales/zh.json
index a0b21163a78..7cf699cc518 100644
--- a/src/renderer/src/i18n/locales/zh.json
+++ b/src/renderer/src/i18n/locales/zh.json
@@ -123,7 +123,8 @@
       "fe21e8f6f5": "返回 ({{value0}})",
       "064bd07810": "返回",
       "ce37cf5279": "切换侧边栏 ({{value0}})",
-      "e4b9e7dff7": "切换侧边栏"
+      "e4b9e7dff7": "切换侧边栏",
+      "rightSidebarEdgePeekHint": "Hover the right edge to peek"
     },
     "web": {
       "WebConnect": {
@@ -7068,7 +7069,11 @@
               "detailed": "详细"
             },
             "9a115966d3": "关闭时最小化到托盘",
-            "4d5b9427b5": "启用后，关闭窗口会让 Orca 继续在系统托盘中运行，而不是退出。"
+            "4d5b9427b5": "启用后，关闭窗口会让 Orca 继续在系统托盘中运行，而不是退出。",
+            "rightSidebarEdgePeek": {
+              "title": "Right Sidebar Edge Peek",
+              "description": "Hover the window edge to temporarily reveal a closed right sidebar."
+            }
           }
         },
         "auto": {
@@ -9540,7 +9545,8 @@
             "fc3095d2ed": "资源管理器",
             "aiVaultSessionHistory": "智能体",
             "folderWorkspaces": "已附加的工作树",
-            "parentPrChecks": "PR 检查"
+            "parentPrChecks": "PR 检查",
+            "edgePeekHint": "Hover the right edge to peek"
           },
           "right": {
             "panel": {
@@ -9925,6 +9931,14 @@
             "archivedJumpUnavailable": "此会话位于已归档的工作树中。",
             "noActiveWorktreeMatch": "没有与此会话匹配的活动工作树。",
             "noActiveWorktreeTarget": "没有可用的活动工作树。"
+          },
+          "edge": {
+            "peek": {
+              "tip": {
+                "title": "Hover the right edge to peek",
+                "description": "The right sidebar slides over the editor without reflowing it. Click the toggle or use the shortcut to pin it open. Change this anytime in Settings › Appearance."
+              }
+            }
           }
         }
       },
diff --git a/src/renderer/src/lib/right-sidebar-visibility.test.ts b/src/renderer/src/lib/right-sidebar-visibility.test.ts
index 333ba995496..6eb0b0d3694 100644
--- a/src/renderer/src/lib/right-sidebar-visibility.test.ts
+++ b/src/renderer/src/lib/right-sidebar-visibility.test.ts
@@ -1,6 +1,7 @@
 import { describe, expect, it } from 'vitest'
 import {
   canShowRightSidebarForView,
+  isRightSidebarRevealed,
   rightSidebarShowsPullRequestData
 } from './right-sidebar-visibility'
 import type { AppState } from '@/store/types'
@@ -22,6 +23,7 @@ function makeState(
       }
     ],
     rightSidebarOpen: true,
+    rightSidebarPeek: false,
     rightSidebarTab: 'checks',
     worktreesByRepo: { 'repo-1': [{ id: 'wt-1', repoId: 'repo-1' }] },
     ...overrides
@@ -47,6 +49,12 @@ describe('right sidebar visibility helpers', () => {
     expect(canShowRightSidebarForView('terminal')).toBe(true)
   })
 
+  it('treats both pinned and peeked sidebars as revealed', () => {
+    expect(isRightSidebarRevealed({ rightSidebarOpen: true, rightSidebarPeek: false })).toBe(true)
+    expect(isRightSidebarRevealed({ rightSidebarOpen: false, rightSidebarPeek: true })).toBe(true)
+    expect(isRightSidebarRevealed({ rightSidebarOpen: false, rightSidebarPeek: false })).toBe(false)
+  })
+
   it('does not treat hidden full-page sidebars as visible PR panels', () => {
     expect(rightSidebarShowsPullRequestData(makeState({ activeView: 'tasks' }))).toBe(false)
   })
@@ -79,4 +87,12 @@ describe('right sidebar visibility helpers', () => {
       )
     ).toBe(true)
   })
+
+  it('detects PR panels revealed by an edge peek', () => {
+    expect(
+      rightSidebarShowsPullRequestData(
+        makeState({ rightSidebarOpen: false, rightSidebarPeek: true })
+      )
+    ).toBe(true)
+  })
 })
diff --git a/src/renderer/src/lib/right-sidebar-visibility.ts b/src/renderer/src/lib/right-sidebar-visibility.ts
index 950f2fcb7fd..5eb71971694 100644
--- a/src/renderer/src/lib/right-sidebar-visibility.ts
+++ b/src/renderer/src/lib/right-sidebar-visibility.ts
@@ -17,6 +17,12 @@ export function canShowRightSidebarForView(activeView: ActiveView): boolean {
   return !RIGHT_SIDEBAR_SUPPRESSED_VIEWS.has(activeView)
 }
 
+export function isRightSidebarRevealed(
+  state: Pick<AppState, 'rightSidebarOpen' | 'rightSidebarPeek'>
+): boolean {
+  return state.rightSidebarOpen || state.rightSidebarPeek
+}
+
 export function rightSidebarShowsPullRequestData(
   state: Pick<
     AppState,
@@ -24,13 +30,14 @@ export function rightSidebarShowsPullRequestData(
     | 'activeWorktreeId'
     | 'repos'
     | 'rightSidebarOpen'
+    | 'rightSidebarPeek'
     | 'rightSidebarTab'
     | 'worktreesByRepo'
   >
 ): boolean {
   if (
     !canShowRightSidebarForView(state.activeView) ||
-    !state.rightSidebarOpen ||
+    !isRightSidebarRevealed(state) ||
     (state.rightSidebarTab !== 'checks' && state.rightSidebarTab !== 'source-control')
   ) {
     return false