diff --git a/apps/app/src/hooks/queries/plugin-settings-queries.ts b/apps/app/src/hooks/queries/plugin-settings-queries.ts
index 2456b750a37..7e9d7bbc6a5 100644
--- a/apps/app/src/hooks/queries/plugin-settings-queries.ts
+++ b/apps/app/src/hooks/queries/plugin-settings-queries.ts
@@ -52,6 +52,7 @@ export interface PluginListItem {
   source: string;
   isOrphanedBuiltin: boolean;
   catalogEntryId: string | null;
+  catalogMarketplaceName: string | null;
   publisherLabel: string | null;
   sourceDisplay: string;
   updateState: PluginUpdateState;
@@ -108,6 +109,7 @@ export function toPluginListItem(plugin: InstalledPlugin): PluginListItem {
     source: plugin.source,
     isOrphanedBuiltin: plugin.isOrphanedBuiltin,
     catalogEntryId: plugin.catalogEntryId ?? null,
+    catalogMarketplaceName: plugin.catalogMarketplaceName ?? null,
     publisherLabel: plugin.publisherLabel,
     sourceDisplay: plugin.sourceDisplay,
     updateState: {
diff --git a/apps/app/src/test/fixtures/plugins.ts b/apps/app/src/test/fixtures/plugins.ts
index eee2d172319..9e2053505cd 100644
--- a/apps/app/src/test/fixtures/plugins.ts
+++ b/apps/app/src/test/fixtures/plugins.ts
@@ -67,6 +67,7 @@ export function makePluginListItem(
     provenance: "direct",
     isOrphanedBuiltin: false,
     catalogEntryId: null,
+    catalogMarketplaceName: null,
     publisherLabel: null,
     sourceDisplay: "path · /plugins/plugin-test",
     updateState: {
diff --git a/apps/app/src/views/ToolsView.plugin-detail.test.tsx b/apps/app/src/views/ToolsView.plugin-detail.test.tsx
index 5059c307880..a3fac8194a0 100644
--- a/apps/app/src/views/ToolsView.plugin-detail.test.tsx
+++ b/apps/app/src/views/ToolsView.plugin-detail.test.tsx
@@ -589,6 +589,168 @@ describe("PluginDetail official catalog lifecycle", () => {
 });
 
 describe("BB Official plugin detail routing", () => {
+  it("uses the installed catalog identity when plugin ids collide", async () => {
+    const firstCatalogEntry = {
+      ...GITHUB_CATALOG_ENTRY,
+      marketplace: "bb-community",
+      marketplaceDisplayName: "BB Community",
+      publisherKey: "bb-community:example",
+      publisherLabel: "BB Community",
+      description: "Description from the first catalog.",
+      repositoryUrl: "https://github.com/example/first-catalog-plugin",
+      author: {
+        name: "First publisher",
+        github: "first-publisher",
+        url: "https://github.com/first-publisher",
+      },
+    };
+    const installedCatalogEntry = {
+      ...GITHUB_CATALOG_ENTRY,
+      marketplace: "partner-catalog",
+      marketplaceDisplayName: "Partner Catalog",
+      publisherKey: "partner-catalog:example",
+      publisherLabel: "Partner Catalog",
+      description: "Description from the installed catalog.",
+      repositoryUrl: "https://github.com/example/installed-catalog-plugin",
+      author: {
+        name: "Installed publisher",
+        github: "installed-publisher",
+        url: "https://github.com/installed-publisher",
+      },
+      installed: true,
+    };
+    vi.stubGlobal(
+      "fetch",
+      vi.fn(async (input: RequestInfo | URL) => {
+        const url = String(input);
+        if (url === "/api/v1/plugins") {
+          return new Response(
+            JSON.stringify({
+              enabled: true,
+              plugins: [
+                {
+                  ...GITHUB_PLUGIN,
+                  catalogMarketplaceName: "partner-catalog",
+                  publisherLabel: "Partner Catalog",
+                  iconUrl: null,
+                  screenshots: [],
+                  collections: [],
+                  providerIds: [],
+                  icons: {},
+                  updateState: {},
+                },
+              ],
+            }),
+            { headers: { "content-type": "application/json" } },
+          );
+        }
+        if (url.startsWith("/api/v1/plugin-catalog/search")) {
+          return new Response(
+            JSON.stringify({
+              results: [firstCatalogEntry, installedCatalogEntry],
+              collections: [],
+            }),
+            { headers: { "content-type": "application/json" } },
+          );
+        }
+        return new Response(JSON.stringify({ error: "not found" }), {
+          status: 404,
+          headers: { "content-type": "application/json" },
+        });
+      }),
+    );
+
+    const { wrapper: QueryClientWrapper } = createQueryClientTestHarness();
+    render(
+      <MemoryRouter initialEntries={["/extensions/plugins/github"]}>
+        <Routes>
+          <Route path="/extensions/plugins/*" element={<RoutedToolsView />} />
+        </Routes>
+      </MemoryRouter>,
+      { wrapper: QueryClientWrapper },
+    );
+
+    await waitFor(() => {
+      expect(
+        document.querySelector("[data-plugin-summary]")?.textContent,
+      ).toBe("Description from the installed catalog.");
+    });
+  });
+
+  it("uses installed metadata when its catalog entry is unavailable", async () => {
+    const unrelatedCatalogEntry = {
+      ...GITHUB_CATALOG_ENTRY,
+      marketplace: "bb-community",
+      marketplaceDisplayName: "BB Community",
+      publisherKey: "bb-community:example",
+      publisherLabel: "BB Community",
+      description: "Description from an unrelated catalog entry.",
+      repositoryUrl: "https://github.com/example/unrelated-catalog-plugin",
+      author: {
+        name: "Unrelated publisher",
+        github: "unrelated-publisher",
+        url: "https://github.com/unrelated-publisher",
+      },
+    };
+    vi.stubGlobal(
+      "fetch",
+      vi.fn(async (input: RequestInfo | URL) => {
+        const url = String(input);
+        if (url === "/api/v1/plugins") {
+          return new Response(
+            JSON.stringify({
+              enabled: true,
+              plugins: [
+                {
+                  ...GITHUB_PLUGIN,
+                  description: "Description from installed metadata.",
+                  catalogMarketplaceName: "partner-catalog",
+                  publisherLabel: "Partner Catalog",
+                  iconUrl: null,
+                  screenshots: [],
+                  collections: [],
+                  providerIds: [],
+                  icons: {},
+                  updateState: {},
+                },
+              ],
+            }),
+            { headers: { "content-type": "application/json" } },
+          );
+        }
+        if (url.startsWith("/api/v1/plugin-catalog/search")) {
+          return new Response(
+            JSON.stringify({
+              results: [unrelatedCatalogEntry],
+              collections: [],
+            }),
+            { headers: { "content-type": "application/json" } },
+          );
+        }
+        return new Response(JSON.stringify({ error: "not found" }), {
+          status: 404,
+          headers: { "content-type": "application/json" },
+        });
+      }),
+    );
+
+    const { wrapper: QueryClientWrapper } = createQueryClientTestHarness();
+    render(
+      <MemoryRouter initialEntries={["/extensions/plugins/github"]}>
+        <Routes>
+          <Route path="/extensions/plugins/*" element={<RoutedToolsView />} />
+        </Routes>
+      </MemoryRouter>,
+      { wrapper: QueryClientWrapper },
+    );
+
+    await waitFor(() => {
+      expect(
+        document.querySelector("[data-plugin-summary]")?.textContent,
+      ).toBe("Description from installed metadata.");
+    });
+  });
+
   it("resolves an uninstalled catalog plugin and opens its install confirmation", async () => {
     vi.stubGlobal(
       "fetch",
@@ -763,6 +925,7 @@ describe("BB Official plugin detail routing", () => {
               plugins: [
                 {
                   ...GITHUB_PLUGIN,
+                  catalogMarketplaceName: "bb-official",
                   iconUrl: null,
                   screenshots: [],
                   collections: [],
diff --git a/apps/app/src/views/ToolsView.tsx b/apps/app/src/views/ToolsView.tsx
index 765f45c48bc..056e5dc4d31 100644
--- a/apps/app/src/views/ToolsView.tsx
+++ b/apps/app/src/views/ToolsView.tsx
@@ -224,9 +224,23 @@ function PluginDetailToolView({ pluginId }: { pluginId: string }) {
   const isLoading = listQuery.isFetching && listQuery.data === undefined;
   const selectedPlugin =
     plugins.find((plugin) => plugin.id === pluginId) ?? null;
+  const selectedCatalogEntryId = selectedPlugin?.catalogEntryId ?? null;
+  const selectedCatalogMarketplaceName =
+    selectedPlugin?.catalogMarketplaceName ?? null;
   const selectedCatalogEntry =
-    catalogQuery.data?.entries.find((entry) => entry.pluginId === pluginId) ??
-    null;
+    selectedPlugin === null
+      ? (catalogQuery.data?.entries.find(
+          (entry) => entry.pluginId === pluginId,
+        ) ?? null)
+      : selectedCatalogEntryId === null ||
+          selectedCatalogMarketplaceName === null
+        ? null
+        : (catalogQuery.data?.entries.find(
+            (entry) =>
+              entry.pluginId === selectedPlugin.id &&
+              entry.entryId === selectedCatalogEntryId &&
+              entry.marketplace === selectedCatalogMarketplaceName,
+          ) ?? null);
   useResourceRouteLabel(
     selectedPlugin?.name ??
       selectedPlugin?.id ??