diff --git a/web/src/components/RealtimeEventsProvider.test.tsx b/web/src/components/RealtimeEventsProvider.test.tsx
index a645956b..6ab7ad1b 100644
--- a/web/src/components/RealtimeEventsProvider.test.tsx
+++ b/web/src/components/RealtimeEventsProvider.test.tsx
@@ -1,6 +1,8 @@
 import { QueryClient, QueryClientProvider } from "@tanstack/react-query";
 import { act, cleanup, render } from "@testing-library/react";
 import { afterEach, beforeEach, describe, expect, it, vi } from "vitest";
+import { adminKeys, catalogKeys, libraryKeys, sectionKeys } from "@/hooks/queries/keys";
+import { invalidateCatalogState } from "./realtimeCatalogInvalidation";
 import { buildEventsUrl, RealtimeEventsProvider } from "./RealtimeEventsProvider";
 
 const mockState = vi.hoisted(() => ({
@@ -84,6 +86,84 @@ describe("buildEventsUrl", () => {
   });
 });
 
+describe("invalidateCatalogState", () => {
+  it("invalidates library lists for a scoped library change", async () => {
+    const queryClient = new QueryClient();
+    const otherCatalogKey = catalogKeys.list({
+      source: "section",
+      scope: "library",
+      section_id: "all",
+      library_id: 1,
+      limit: 60,
+      offset: 0,
+    });
+    const changedCatalogKey = catalogKeys.list({
+      source: "section",
+      scope: "library",
+      section_id: "all",
+      library_id: 3,
+      limit: 60,
+      offset: 0,
+    });
+    const otherSectionKey = sectionKeys.libraryLayout(1);
+    const changedSectionKey = sectionKeys.libraryLayout(3);
+    const userLibrariesKey = libraryKeys.user("profile-1");
+
+    queryClient.setQueryData(adminKeys.libraries(), []);
+    queryClient.setQueryData(adminKeys.libraryMatchQueueStatuses(), []);
+    queryClient.setQueryData(userLibrariesKey, []);
+    queryClient.setQueryData(otherCatalogKey, { items: [] });
+    queryClient.setQueryData(changedCatalogKey, { items: [] });
+    queryClient.setQueryData(otherSectionKey, { sections: [] });
+    queryClient.setQueryData(changedSectionKey, { sections: [] });
+
+    invalidateCatalogState(queryClient, { libraryId: 3, allowDashboardRefetch: false });
+    await Promise.resolve();
+
+    expect(queryClient.getQueryState(adminKeys.libraries())?.isInvalidated).toBe(true);
+    expect(queryClient.getQueryState(adminKeys.libraryMatchQueueStatuses())?.isInvalidated).toBe(
+      true,
+    );
+    expect(queryClient.getQueryState(userLibrariesKey)?.isInvalidated).toBe(true);
+    expect(queryClient.getQueryState(otherCatalogKey)?.isInvalidated).toBe(false);
+    expect(queryClient.getQueryState(changedCatalogKey)?.isInvalidated).toBe(true);
+    expect(queryClient.getQueryState(otherSectionKey)?.isInvalidated).toBe(false);
+    expect(queryClient.getQueryState(changedSectionKey)?.isInvalidated).toBe(true);
+  });
+
+  it("can skip library lists for item-scoped catalog changes", async () => {
+    const queryClient = new QueryClient();
+    const changedCatalogKey = catalogKeys.list({
+      source: "section",
+      scope: "library",
+      section_id: "all",
+      library_id: 3,
+      limit: 60,
+      offset: 0,
+    });
+
+    queryClient.setQueryData(adminKeys.libraries(), []);
+    queryClient.setQueryData(adminKeys.libraryMatchQueueStatuses(), []);
+    queryClient.setQueryData(libraryKeys.all, []);
+    queryClient.setQueryData(changedCatalogKey, { items: [] });
+
+    invalidateCatalogState(queryClient, {
+      itemId: "item-1",
+      libraryId: 3,
+      allowDashboardRefetch: false,
+      includeLibraryLists: false,
+    });
+    await Promise.resolve();
+
+    expect(queryClient.getQueryState(adminKeys.libraries())?.isInvalidated).toBe(false);
+    expect(queryClient.getQueryState(adminKeys.libraryMatchQueueStatuses())?.isInvalidated).toBe(
+      false,
+    );
+    expect(queryClient.getQueryState(libraryKeys.all)?.isInvalidated).toBe(false);
+    expect(queryClient.getQueryState(changedCatalogKey)?.isInvalidated).toBe(true);
+  });
+});
+
 describe("RealtimeEventsProvider", () => {
   beforeEach(() => {
     FakeWebSocket.instances = [];
diff --git a/web/src/components/RealtimeEventsProvider.tsx b/web/src/components/RealtimeEventsProvider.tsx
index 36ee0595..803249c4 100644
--- a/web/src/components/RealtimeEventsProvider.tsx
+++ b/web/src/components/RealtimeEventsProvider.tsx
@@ -18,9 +18,10 @@ import {
   type RealtimeConnectionState,
   type RealtimeEventsContextValue,
 } from "@/components/realtimeEventsContext";
+import { invalidateCatalogState } from "@/components/realtimeCatalogInvalidation";
 import { useAuth } from "@/hooks/useAuth";
 import { usePageActivity } from "@/hooks/usePageActivity";
-import { adminKeys, catalogKeys, historyImportKeys, libraryKeys } from "@/hooks/queries/keys";
+import { adminKeys, historyImportKeys, libraryKeys } from "@/hooks/queries/keys";
 import {
   invalidateMediaSurfaceQueries,
   updateCatalogItemDetail,
@@ -46,7 +47,12 @@ interface UserStatePayload {
   in_watchlist?: boolean;
 }
 
-const CATALOG_ITEM_CHANGED_EVENTS = new Set(["metadata.updated", "catalog.item.changed"]);
+const CATALOG_ITEM_CHANGED_EVENTS = new Set([
+  "catalog.item.changed",
+  "library.item_added",
+  "metadata.updated",
+]);
+const SCOPED_CATALOG_LIBRARY_EVENTS = new Set(["catalog.library.changed", "library.changed"]);
 const DASHBOARD_QUERY_KEYS = [
   adminKeys.stats(),
   adminKeys.sessions(),
@@ -178,25 +184,12 @@ function invalidateDashboardQueries(queryClient: QueryClient, allowRefetch: bool
   }
 }
 
-function invalidateCatalogState(
-  queryClient: QueryClient,
-  options: { itemId?: string; allowDashboardRefetch: boolean },
-) {
-  const { itemId, allowDashboardRefetch } = options;
-  void invalidateMediaSurfaceQueries(queryClient, itemId ? { itemId } : {}).then(() => {
-    bumpHomeRefreshSignal(queryClient);
-  });
-  void queryClient.refetchQueries({ queryKey: catalogKeys.all, type: "active" });
-  void queryClient.invalidateQueries({
-    queryKey: adminKeys.libraries(),
-    refetchType: allowDashboardRefetch ? "active" : "none",
-  });
-  void queryClient.invalidateQueries({ queryKey: adminKeys.libraryMatchQueueStatuses() });
-  void queryClient.invalidateQueries({
-    queryKey: adminKeys.stats(),
-    refetchType: allowDashboardRefetch ? "active" : "none",
-  });
-  void queryClient.invalidateQueries({ queryKey: libraryKeys.all });
+function catalogEventLibraryID(data: unknown) {
+  if (!data || typeof data !== "object" || !("library_id" in data)) {
+    return undefined;
+  }
+  const value = (data as { library_id?: unknown }).library_id;
+  return typeof value === "number" && Number.isFinite(value) ? value : undefined;
 }
 
 function handleJobSideEffects(
@@ -473,18 +466,29 @@ export function RealtimeEventsProvider({ children }: { children: ReactNode }) {
   function handleEvent(message: EventsEventMessage) {
     switch (message.channel) {
       case "catalog":
-        if (CATALOG_ITEM_CHANGED_EVENTS.has(message.event)) {
-          invalidateCatalogState(queryClient, {
-            itemId:
-              typeof message.data === "object" && message.data && "content_id" in message.data
-                ? (message.data as { content_id?: string }).content_id
-                : undefined,
-            allowDashboardRefetch: allowDashboardRealtimeUpdatesRef.current,
-          });
-        } else {
-          invalidateCatalogState(queryClient, {
-            allowDashboardRefetch: allowDashboardRealtimeUpdatesRef.current,
-          });
+        {
+          const eventLibraryID = catalogEventLibraryID(message.data);
+          if (CATALOG_ITEM_CHANGED_EVENTS.has(message.event)) {
+            invalidateCatalogState(queryClient, {
+              itemId:
+                typeof message.data === "object" && message.data && "content_id" in message.data
+                  ? (message.data as { content_id?: string }).content_id
+                  : undefined,
+              libraryId: eventLibraryID,
+              allowDashboardRefetch: allowDashboardRealtimeUpdatesRef.current,
+              includeLibraryLists: false,
+            });
+          } else if (SCOPED_CATALOG_LIBRARY_EVENTS.has(message.event) && eventLibraryID) {
+            invalidateCatalogState(queryClient, {
+              libraryId: eventLibraryID,
+              allowDashboardRefetch: allowDashboardRealtimeUpdatesRef.current,
+            });
+          } else {
+            invalidateCatalogState(queryClient, {
+              libraryId: eventLibraryID,
+              allowDashboardRefetch: allowDashboardRealtimeUpdatesRef.current,
+            });
+          }
         }
         break;
       case "jobs":
diff --git a/web/src/components/realtimeCatalogInvalidation.ts b/web/src/components/realtimeCatalogInvalidation.ts
new file mode 100644
index 00000000..1ece19d9
--- /dev/null
+++ b/web/src/components/realtimeCatalogInvalidation.ts
@@ -0,0 +1,31 @@
+import type { QueryClient } from "@tanstack/react-query";
+import { adminKeys, libraryKeys } from "@/hooks/queries/keys";
+import { invalidateMediaSurfaceQueries } from "@/hooks/queries/mediaSurfaceRefresh";
+import { bumpHomeRefreshSignal } from "@/pages/homeSurfaceRefresh";
+
+export function invalidateCatalogState(
+  queryClient: QueryClient,
+  options: {
+    itemId?: string;
+    libraryId?: number;
+    allowDashboardRefetch: boolean;
+    includeLibraryLists?: boolean;
+  },
+) {
+  const { itemId, libraryId, allowDashboardRefetch, includeLibraryLists = true } = options;
+  void invalidateMediaSurfaceQueries(queryClient, { itemId, libraryId }).then(() => {
+    bumpHomeRefreshSignal(queryClient);
+  });
+  if (includeLibraryLists) {
+    void queryClient.invalidateQueries({
+      queryKey: adminKeys.libraries(),
+      refetchType: allowDashboardRefetch ? "active" : "none",
+    });
+    void queryClient.invalidateQueries({ queryKey: adminKeys.libraryMatchQueueStatuses() });
+    void queryClient.invalidateQueries({ queryKey: libraryKeys.all });
+  }
+  void queryClient.invalidateQueries({
+    queryKey: adminKeys.stats(),
+    refetchType: allowDashboardRefetch ? "active" : "none",
+  });
+}
diff --git a/web/src/hooks/queries/mediaSurfaceRefresh.test.ts b/web/src/hooks/queries/mediaSurfaceRefresh.test.ts
index 6887d5cd..f8821ffe 100644
--- a/web/src/hooks/queries/mediaSurfaceRefresh.test.ts
+++ b/web/src/hooks/queries/mediaSurfaceRefresh.test.ts
@@ -91,6 +91,51 @@ describe("invalidateMediaSurfaceQueries", () => {
     expect(queryClient.getQueryState(catalogKeys.itemDetail("item-1"))?.isInvalidated).toBe(true);
   });
 
+  it("does not invalidate catalog list queries for a different library scope", async () => {
+    const queryClient = new QueryClient();
+    const moviesKey = catalogKeys.list({
+      source: "section",
+      scope: "library",
+      section_id: "all",
+      library_id: 1,
+      limit: 60,
+      offset: 0,
+    });
+    const internationalKey = catalogKeys.list({
+      source: "section",
+      scope: "library",
+      section_id: "all",
+      library_id: 3,
+      limit: 60,
+      offset: 0,
+    });
+
+    queryClient.setQueryData(moviesKey, { items: [] });
+    queryClient.setQueryData(internationalKey, { items: [] });
+
+    await invalidateMediaSurfaceQueries(queryClient, { libraryId: 3 });
+
+    expect(queryClient.getQueryState(moviesKey)?.isInvalidated).toBe(false);
+    expect(queryClient.getQueryState(internationalKey)?.isInvalidated).toBe(true);
+  });
+
+  it("does not invalidate library section queries for a different library scope", async () => {
+    const queryClient = new QueryClient();
+    const moviesLayoutKey = sectionKeys.libraryLayout(1);
+    const moviesSectionKey = sectionKeys.libraryItems(1, "recently-added");
+    const internationalLayoutKey = sectionKeys.libraryLayout(3);
+
+    queryClient.setQueryData(moviesLayoutKey, { sections: [] });
+    queryClient.setQueryData(moviesSectionKey, { section: { id: "recently-added", items: [] } });
+    queryClient.setQueryData(internationalLayoutKey, { sections: [] });
+
+    await invalidateMediaSurfaceQueries(queryClient, { libraryId: 3 });
+
+    expect(queryClient.getQueryState(moviesLayoutKey)?.isInvalidated).toBe(false);
+    expect(queryClient.getQueryState(moviesSectionKey)?.isInvalidated).toBe(false);
+    expect(queryClient.getQueryState(internationalLayoutKey)?.isInvalidated).toBe(true);
+  });
+
   it("sets all cached detail keys for the mutated item", () => {
     const queryClient = new QueryClient();
 
diff --git a/web/src/hooks/queries/mediaSurfaceRefresh.ts b/web/src/hooks/queries/mediaSurfaceRefresh.ts
index 160da0c3..3cafbe93 100644
--- a/web/src/hooks/queries/mediaSurfaceRefresh.ts
+++ b/web/src/hooks/queries/mediaSurfaceRefresh.ts
@@ -12,9 +12,14 @@ import {
   sectionKeys,
   watchlistKeys,
 } from "./keys";
+import {
+  activeCatalogQueryMatchesLibrary,
+  activeSectionQueryMatchesLibrary,
+} from "@/lib/queryInvalidation";
 
 interface InvalidateMediaSurfaceOptions {
   itemId?: string;
+  libraryId?: number;
   watchedKeys?: Array<readonly unknown[]>;
 }
 
@@ -96,8 +101,14 @@ export async function invalidateMediaSurfaceQueries(
 ) {
   const invalidations: Array<Promise<void>> = [
     queryClient.invalidateQueries({ queryKey: itemKeys.all }),
-    queryClient.invalidateQueries({ queryKey: catalogKeys.all }),
-    queryClient.invalidateQueries({ queryKey: sectionKeys.all }),
+    queryClient.invalidateQueries({
+      queryKey: catalogKeys.all,
+      predicate: (query) => activeCatalogQueryMatchesLibrary(query.queryKey, options.libraryId),
+    }),
+    queryClient.invalidateQueries({
+      queryKey: sectionKeys.all,
+      predicate: (query) => activeSectionQueryMatchesLibrary(query.queryKey, options.libraryId),
+    }),
     queryClient.invalidateQueries({ queryKey: progressKeys.all }),
     queryClient.invalidateQueries({ queryKey: historyKeys.all }),
     queryClient.invalidateQueries({ queryKey: favoriteKeys.all }),
diff --git a/web/src/lib/queryInvalidation.test.ts b/web/src/lib/queryInvalidation.test.ts
new file mode 100644
index 00000000..7f272d20
--- /dev/null
+++ b/web/src/lib/queryInvalidation.test.ts
@@ -0,0 +1,27 @@
+import { describe, expect, it } from "vitest";
+import {
+  activeCatalogQueryMatchesLibrary,
+  activeSectionQueryMatchesLibrary,
+} from "./queryInvalidation";
+
+describe("activeCatalogQueryMatchesLibrary", () => {
+  it("does not match a catalog list query for a different library event", () => {
+    expect(activeCatalogQueryMatchesLibrary(["catalog", "list", { library_id: 1 }], 3)).toBe(false);
+  });
+
+  it("matches unscoped and same-library catalog queries", () => {
+    expect(activeCatalogQueryMatchesLibrary(["catalog", "list", { library_id: 3 }], 3)).toBe(true);
+    expect(activeCatalogQueryMatchesLibrary(["catalog", "list", {}], 3)).toBe(true);
+  });
+});
+
+describe("activeSectionQueryMatchesLibrary", () => {
+  it("does not match a library section query for a different library event", () => {
+    expect(activeSectionQueryMatchesLibrary(["sections", "library", 1, "items"], 3)).toBe(false);
+  });
+
+  it("matches non-library and same-library section queries", () => {
+    expect(activeSectionQueryMatchesLibrary(["sections", "home", "items"], 3)).toBe(true);
+    expect(activeSectionQueryMatchesLibrary(["sections", "library", 3, "layout"], 3)).toBe(true);
+  });
+});
diff --git a/web/src/lib/queryInvalidation.ts b/web/src/lib/queryInvalidation.ts
new file mode 100644
index 00000000..4952fe3f
--- /dev/null
+++ b/web/src/lib/queryInvalidation.ts
@@ -0,0 +1,13 @@
+export function activeCatalogQueryMatchesLibrary(queryKey: unknown, libraryId?: number) {
+  if (!libraryId || !Array.isArray(queryKey)) return true;
+  if (queryKey[0] !== "catalog" || queryKey[1] !== "list") return true;
+  const params = queryKey[2] as { library_id?: number } | undefined;
+  return params?.library_id == null || params.library_id === libraryId;
+}
+
+export function activeSectionQueryMatchesLibrary(queryKey: unknown, libraryId?: number) {
+  if (!libraryId || !Array.isArray(queryKey)) return true;
+  if (queryKey[0] !== "sections" || queryKey[1] !== "library") return true;
+  const queryLibraryId = queryKey[2];
+  return queryLibraryId == null || queryLibraryId === libraryId;
+}