diff --git a/src/auto-reply/reply/reply-payloads.test.ts b/src/auto-reply/reply/reply-payloads.test.ts
index 614fcd37951..8664eec5c72 100644
--- a/src/auto-reply/reply/reply-payloads.test.ts
+++ b/src/auto-reply/reply/reply-payloads.test.ts
@@ -1,4 +1,6 @@
 import { describe, expect, it } from "vitest";
+import { setActivePluginRegistry } from "../../plugins/runtime.js";
+import { createTestRegistry } from "../../test-utils/channel-plugins.js";
 import {
   filterMessagingToolMediaDuplicates,
   shouldSuppressMessagingToolReplies,
@@ -153,4 +155,18 @@ describe("shouldSuppressMessagingToolReplies", () => {
       }),
     ).toBe(true);
   });
+
+  it("suppresses telegram replies even when the active plugin registry omits telegram", () => {
+    setActivePluginRegistry(createTestRegistry([]));
+
+    expect(
+      shouldSuppressMessagingToolReplies({
+        messageProvider: "telegram",
+        originatingTo: "telegram:group:-100123:topic:77",
+        messagingToolSentTargets: [
+          { tool: "message", provider: "telegram", to: "-100123", threadId: "77" },
+        ],
+      }),
+    ).toBe(true);
+  });
 });
diff --git a/src/plugins/commands.test.ts b/src/plugins/commands.test.ts
index 6f371305a81..d95a98b18d9 100644
--- a/src/plugins/commands.test.ts
+++ b/src/plugins/commands.test.ts
@@ -136,6 +136,22 @@ describe("registerPluginCommand", () => {
     });
   });
 
+  it("resolves Telegram topic command bindings without a Telegram registry entry", () => {
+    expect(
+      __testing.resolveBindingConversationFromCommand({
+        channel: "telegram",
+        from: "telegram:group:-100123",
+        to: "telegram:group:-100123:topic:77",
+        accountId: "default",
+      }),
+    ).toEqual({
+      channel: "telegram",
+      accountId: "default",
+      conversationId: "-100123",
+      threadId: 77,
+    });
+  });
+
   it("does not resolve binding conversations for unsupported command channels", () => {
     expect(
       __testing.resolveBindingConversationFromCommand({