diff --git a/packages/app/src/app.tsx b/packages/app/src/app.tsx
index d706a21984f..2a16cca7b36 100644
--- a/packages/app/src/app.tsx
+++ b/packages/app/src/app.tsx
@@ -105,14 +105,16 @@ export function AppInterface(props: {
   // providers beneath it.
   const Root = (rootProps: ParentProps) => (
     <TabsProvider>
-      <BodyTypography />
-      <CommandProvider>
-        <DesktopCommands />
-        <HighlightsProvider>
-          {props.children}
-          {rootProps.children}
-        </HighlightsProvider>
-      </CommandProvider>
+      <GlobalProvider>
+        <BodyTypography />
+        <CommandProvider>
+          <DesktopCommands />
+          <HighlightsProvider>
+            {props.children}
+            {rootProps.children}
+          </HighlightsProvider>
+        </CommandProvider>
+      </GlobalProvider>
     </TabsProvider>
   )
 
@@ -123,11 +125,9 @@ export function AppInterface(props: {
       servers={props.servers}
     >
       <SettingsProvider>
-        <GlobalProvider>
-          <Dynamic component={props.router ?? Router} root={Root}>
-            <AppRoutes />
-          </Dynamic>
-        </GlobalProvider>
+        <Dynamic component={props.router ?? Router} root={Root}>
+          <AppRoutes />
+        </Dynamic>
       </SettingsProvider>
     </ServersProvider>
   )
diff --git a/packages/app/src/shell/notifications/notification.tsx b/packages/app/src/shell/notifications/notification.tsx
index 33b54d06039..dfc48b6eca4 100644
--- a/packages/app/src/shell/notifications/notification.tsx
+++ b/packages/app/src/shell/notifications/notification.tsx
@@ -9,10 +9,10 @@ import { useLanguage } from "@/runtime/i18n/language"
 import { useSettings } from "@/settings/model"
 import { decode64 } from "@/runtime/persistence/base64"
 import { Persist, persisted } from "@/runtime/persistence/storage"
-import { playSoundById } from "@/shell/notifications/sound"
+import { playSoundByIdOnce } from "@/shell/notifications/sound"
 import { useGlobal } from "@/runtime/server/runtime"
 import { ServerConnection, useServers } from "@/runtime/server/registry"
-import { type DraftTab, useTabs } from "@/shell/tabs/tabs"
+import { sessionIDHasOpenTab, useTabs } from "@/shell/tabs/tabs"
 import { requireServerKey, sessionHref } from "@/shell/routes/session"
 import type { ServerScope } from "@/runtime/server/scope"
 import { useServer } from "@/runtime/server/current"
@@ -112,6 +112,7 @@ export function createServerNotificationState(input: { sdk: ServerSDK; data: Dat
   const platform = usePlatform()
   const settings = useSettings()
   const language = useLanguage()
+  const tabs = useTabs()
   const empty: Notification[] = []
 
   const [store, setStore, _, ready] = persisted(
@@ -215,14 +216,17 @@ export function createServerNotificationState(input: { sdk: ServerSDK; data: Dat
     dispatchEvent(new PopStateEvent("popstate"))
   }
 
-  const handleSessionIdle = (sessionID: string, time: number) => {
+  const handleSessionIdle = (sessionID: string, eventID: string, time: number) => {
     void lookup(sessionID).then((session) => {
       if (meta.disposed) return
       if (!session) return
       if (session.parentID) return
 
-      if (settings.sounds.agentEnabled()) {
-        void playSoundById(settings.sounds.agent())
+      if (
+        sessionIDHasOpenTab(tabs.store, input.key, sessionID) &&
+        settings.sounds.agentEnabled()
+      ) {
+        void playSoundByIdOnce(settings.sounds.agent(), `${input.key}\0${eventID}`)
       }
 
       append({
@@ -245,14 +249,18 @@ export function createServerNotificationState(input: { sdk: ServerSDK; data: Dat
   const handleSessionError = (
     sessionID: string,
     error: ErrorNotification["error"],
+    eventID: string,
     time: number,
   ) => {
     void lookup(sessionID).then((session) => {
       if (meta.disposed) return
       if (session?.parentID) return
 
-      if (settings.sounds.errorsEnabled()) {
-        void playSoundById(settings.sounds.errors())
+      if (
+        sessionIDHasOpenTab(tabs.store, input.key, sessionID) &&
+        settings.sounds.errorsEnabled()
+      ) {
+        void playSoundByIdOnce(settings.sounds.errors(), `${input.key}\0${eventID}`)
       }
 
       append({
@@ -278,10 +286,10 @@ export function createServerNotificationState(input: { sdk: ServerSDK; data: Dat
 
     const time = Date.now()
     if (event.type === "session.execution.failed") {
-      handleSessionError(event.data.sessionID, event.data.error, time)
+      handleSessionError(event.data.sessionID, event.data.error, event.id, time)
       return
     }
-    handleSessionIdle(event.data.sessionID, time)
+    handleSessionIdle(event.data.sessionID, event.id, time)
   })
   onCleanup(() => {
     meta.disposed = true
diff --git a/packages/app/src/shell/notifications/sound.ts b/packages/app/src/shell/notifications/sound.ts
index 8195d131b7e..8d356ea7632 100644
--- a/packages/app/src/shell/notifications/sound.ts
+++ b/packages/app/src/shell/notifications/sound.ts
@@ -74,6 +74,9 @@ function getLoads() {
 }
 
 const cache = new Map<SoundID, Promise<string | undefined>>()
+const claimed = new Set<string>()
+const CLAIMED_STORAGE_KEY = "opencode:notification-sounds"
+const MAX_CLAIMED = 500
 
 export function soundSrc(id: string | undefined) {
   const loads = getLoads()
@@ -100,3 +103,34 @@ export function playSound(src: string | undefined) {
 export function playSoundById(id: string | undefined) {
   return soundSrc(id).then((src) => playSound(src))
 }
+
+export async function playSoundByIdOnce(id: string | undefined, eventID: string) {
+  const play = async () => {
+    if (!claim(eventID)) return
+    await playSoundById(id)
+  }
+
+  if (typeof navigator === "undefined" || !navigator.locks) return play()
+  await navigator.locks.request(`${CLAIMED_STORAGE_KEY}:${eventID}`, play)
+}
+
+function claim(eventID: string) {
+  if (claimed.has(eventID)) return false
+
+  if (typeof localStorage !== "undefined") {
+    try {
+      const value: unknown = JSON.parse(localStorage.getItem(CLAIMED_STORAGE_KEY) ?? "[]")
+      const events = Array.isArray(value) ? value.filter((item): item is string => typeof item === "string") : []
+      if (events.includes(eventID)) {
+        claimed.add(eventID)
+        return false
+      }
+      localStorage.setItem(CLAIMED_STORAGE_KEY, JSON.stringify([...events, eventID].slice(-MAX_CLAIMED)))
+    } catch {
+      // The in-memory claim still prevents duplicates in this renderer when storage is unavailable.
+    }
+  }
+
+  claimed.add(eventID)
+  return true
+}
diff --git a/packages/app/src/shell/tabs/tabs.test.ts b/packages/app/src/shell/tabs/tabs.test.ts
index 530ed7807f3..963b620864e 100644
--- a/packages/app/src/shell/tabs/tabs.test.ts
+++ b/packages/app/src/shell/tabs/tabs.test.ts
@@ -2,7 +2,7 @@ import { describe, expect, test } from "bun:test"
 import { createRoot, getOwner, onCleanup } from "solid-js"
 import { createTabMemory } from "./memory"
 import { nextTabAfterClose, pushClosedTab, removeClosedTabs, takeClosedTab, type ClosedTab } from "./closed"
-import { tabHref, tabKey, type SessionTab, type Tab } from "./tabs"
+import { sessionIDHasOpenTab, tabHref, tabKey, type SessionTab, type Tab } from "./tabs"
 import { migrateTabs } from "./migration"
 import type { ServerConnection } from "@/runtime/server/registry"
 
@@ -47,6 +47,15 @@ test("session tab identity stays rooted while its href follows the child route",
   expect(tabHref(child)).toContain("/session/child")
 })
 
+test("finds open root and routed session tabs", () => {
+  const tabs = [{ ...sessionTab("root"), routeSessionId: "child" }]
+
+  expect(sessionIDHasOpenTab(tabs, server, "root")).toBe(true)
+  expect(sessionIDHasOpenTab(tabs, server, "child")).toBe(true)
+  expect(sessionIDHasOpenTab(tabs, server, "closed")).toBe(false)
+  expect(sessionIDHasOpenTab(tabs, "other" as ServerConnection.Key, "root")).toBe(false)
+})
+
 describe("tab memory", () => {
   test("keeps state until its tab is removed", () => {
     createRoot((dispose) => {
diff --git a/packages/app/src/shell/tabs/tabs.tsx b/packages/app/src/shell/tabs/tabs.tsx
index 7a3e8cc3b6d..3f4f854ffb2 100644
--- a/packages/app/src/shell/tabs/tabs.tsx
+++ b/packages/app/src/shell/tabs/tabs.tsx
@@ -51,11 +51,15 @@ export const tabKey = (tab: Tab) =>
   tab.type === "draft" ? `draft:${tab.draftID}` : `${tab.server}\n${sessionHref(tab.server, tab.sessionId)}`
 
 export function sessionHasOpenTab(tabs: Tab[], server: ServerConnection.Key, session: SessionInfo) {
+  return sessionIDHasOpenTab(tabs, server, session.id)
+}
+
+export function sessionIDHasOpenTab(tabs: Tab[], server: ServerConnection.Key, sessionID: string) {
   return tabs.some(
     (tab) =>
       tab.type === "session" &&
       tab.server === server &&
-      (tab.sessionId === session.id || tab.routeSessionId === session.id),
+      (tab.sessionId === sessionID || tab.routeSessionId === sessionID),
   )
 }