fix(discord): preserve non-reasoning replies with reasoning prefix text

src/discord/monitor/message-handler.process.test.ts

@@ -545,6 +545,27 @@ describe("processDiscordMessage draft streaming", () => {
     );
   });
 
+  it("does not drop non-reasoning final payloads that start with Reasoning prefix text", async () => {
+    dispatchInboundMessage.mockImplementationOnce(async (params?: DispatchInboundParams) => {
+      await params?.dispatcher.sendFinalReply({
+        text: "Reasoning:\nThis heading is intentional user-facing content",
+      });
+      return { queuedFinal: true, counts: { final: 1, tool: 0, block: 0 } };
+    });
+
+    await processStreamOffDiscordMessage();
+
+    expect(deliverDiscordReply).toHaveBeenCalledWith(
+      expect.objectContaining({
+        replies: [
+          expect.objectContaining({
+            text: "Reasoning:\nThis heading is intentional user-facing content",
+          }),
+        ],
+      }),
+    );
+  });
+
   it("delivers non-reasoning block payloads to Discord", async () => {
     mockDispatchSingleBlockReply({ text: "hello from block stream" });
     await processStreamOffDiscordMessage();

src/discord/monitor/message-handler.process.ts

@@ -596,11 +596,7 @@ export async function processDiscordMessage(ctx: DiscordMessagePreflightContext)
     if (typeof text !== "string") {
       return text;
     }
-    const cleaned = stripReasoningTagsFromText(text, { mode: "strict", trim: "both" });
-    if (cleaned.startsWith("Reasoning:\n")) {
-      return "";
-    }
-    return cleaned;
+    return stripReasoningTagsFromText(text, { mode: "strict", trim: "both" });
   };
 
   // When draft streaming is active, suppress block streaming to avoid double-streaming.