diff --git a/packages/plugins-ui/src/index.ts b/packages/plugins-ui/src/index.ts
index 3c0781b36..04c7a9fc2 100644
--- a/packages/plugins-ui/src/index.ts
+++ b/packages/plugins-ui/src/index.ts
@@ -9,6 +9,8 @@ export { PluginConnectPanel } from "./plugin-connect-panel";
 export { McpServersSection } from "./mcp-servers-section";
 export { McpPresetCardsSection } from "./mcp-preset-cards";
 
+export { PLUGINS_STRINGS } from "./strings";
+
 export {
   McpServersApiError,
   listMcpServers,
diff --git a/packages/plugins-ui/src/mcp-preset-cards.tsx b/packages/plugins-ui/src/mcp-preset-cards.tsx
index 676de13dd..80e47b84f 100644
--- a/packages/plugins-ui/src/mcp-preset-cards.tsx
+++ b/packages/plugins-ui/src/mcp-preset-cards.tsx
@@ -15,6 +15,7 @@ import {
   type McpPreset,
 } from "./mcp-servers-api";
 import { PluginLogo } from "./plugin-logo";
+import { PLUGINS_STRINGS } from "./strings";
 
 function messageOf(cause: unknown): string {
   return cause instanceof Error ? cause.message : String(cause);
@@ -27,8 +28,7 @@ const MCP_OAUTH_ERROR_COPY: Readonly<Record<string, string>> = {
   state_expired:
     "The connection took too long or was already used. Try connecting again.",
   state_mismatch: "The connection was interrupted. Try connecting again.",
-  exchange_failed:
-    "That app didn't hand back a token. Try connecting again.",
+  exchange_failed: "That app didn't hand back a token. Try connecting again.",
   connect_failed: "Couldn't finish connecting. Try connecting again.",
   setup_failed:
     "The sign-in worked, but storing the connection failed. Try connecting again.",
@@ -101,7 +101,7 @@ function McpPresetCard({
         toast(`${preset.displayName} disconnected.`);
         onChanged();
       })
-      .catch(() => setError("Couldn't disconnect — try again."))
+      .catch(() => setError(PLUGINS_STRINGS.disconnectError))
       .finally(() => setBusy(false));
   }
 
diff --git a/packages/plugins-ui/src/mcp-servers-section.tsx b/packages/plugins-ui/src/mcp-servers-section.tsx
index d6f6827c2..f1f385e9a 100644
--- a/packages/plugins-ui/src/mcp-servers-section.tsx
+++ b/packages/plugins-ui/src/mcp-servers-section.tsx
@@ -18,6 +18,7 @@ import {
   listMcpServers,
   type McpServer,
 } from "./mcp-servers-api";
+import { PLUGINS_STRINGS } from "./strings";
 
 function messageOf(cause: unknown): string {
   return cause instanceof Error ? cause.message : String(cause);
@@ -43,7 +44,7 @@ function ConnectedMcpServerRow({
         toast(`${server.name} disconnected.`);
         onChanged();
       })
-      .catch(() => setError("Couldn't disconnect — try again."))
+      .catch(() => setError(PLUGINS_STRINGS.disconnectError))
       .finally(() => setBusy(false));
   }
 
diff --git a/packages/plugins-ui/src/plugin-connect-panel.tsx b/packages/plugins-ui/src/plugin-connect-panel.tsx
index 68320ab20..13b112b4d 100644
--- a/packages/plugins-ui/src/plugin-connect-panel.tsx
+++ b/packages/plugins-ui/src/plugin-connect-panel.tsx
@@ -37,6 +37,7 @@ import type { ResolvedPlugin } from "@workbench/connections/plugins";
 import { useEffect, useState } from "react";
 
 import { pluginOutcome } from "./plugin-meta";
+import { PLUGINS_STRINGS } from "./strings";
 
 const PLUGINS_RETURN_PATH = "/plugins";
 
@@ -142,7 +143,7 @@ function ConnectedSummary({
         toast(`${plugin.descriptor.displayName} disconnected.`);
         onChanged();
       })
-      .catch(() => setError("Couldn't disconnect — try again."))
+      .catch(() => setError(PLUGINS_STRINGS.disconnectError))
       .finally(() => setBusy(false));
   }
 
diff --git a/packages/plugins-ui/src/strings.ts b/packages/plugins-ui/src/strings.ts
new file mode 100644
index 000000000..d5bef00ea
--- /dev/null
+++ b/packages/plugins-ui/src/strings.ts
@@ -0,0 +1,6 @@
+// Every user-facing word the plugins surface prints, in one place. Nothing
+// in the plugins-ui/* components inlines its own copy; it imports from here.
+
+export const PLUGINS_STRINGS = {
+  disconnectError: "Couldn't disconnect — try again.",
+} as const;
diff --git a/packages/plugins-ui/test/mcp-preset-cards.test.tsx b/packages/plugins-ui/test/mcp-preset-cards.test.tsx
index 6ceee5ac4..52f78222f 100644
--- a/packages/plugins-ui/test/mcp-preset-cards.test.tsx
+++ b/packages/plugins-ui/test/mcp-preset-cards.test.tsx
@@ -132,7 +132,10 @@ describe("McpPresetCardsSection", () => {
     Object.defineProperty(window.location, "href", {
       configurable: true,
       get() {
-        return hrefDescriptor?.get?.call(window.location) ?? "https://workbench.test/";
+        return (
+          hrefDescriptor?.get?.call(window.location) ??
+          "https://workbench.test/"
+        );
       },
       set(value: string) {
         assigned.push(value);
diff --git a/packages/plugins-ui/test/plugin-connect-panel.test.tsx b/packages/plugins-ui/test/plugin-connect-panel.test.tsx
index 2f866faca..993541c3c 100644
--- a/packages/plugins-ui/test/plugin-connect-panel.test.tsx
+++ b/packages/plugins-ui/test/plugin-connect-panel.test.tsx
@@ -13,6 +13,7 @@ import type { ConnectorDescriptor } from "@workbench/connections/registry";
 import type { ResolvedPlugin } from "@workbench/connections/plugins";
 
 import { PluginConnectPanel } from "../src/plugin-connect-panel";
+import { PLUGINS_STRINGS } from "../src/strings";
 
 const realFetch = globalThis.fetch;
 let mountedRoots: Root[] = [];
@@ -169,7 +170,7 @@ describe("PluginConnectPanel", () => {
     });
     await settle();
 
-    expect(container.textContent).toContain("Couldn't disconnect");
+    expect(container.textContent).toContain(PLUGINS_STRINGS.disconnectError);
   });
 
   function githubDescriptor(): ConnectorDescriptor {