From 35754f83c2fca43f8742df91153a14d006dffbc0 Mon Sep 17 00:00:00 2001
From: "copilot-swe-agent[bot]" <198982749+Copilot@users.noreply.github.com>
Date: Thu, 28 May 2026 02:58:13 +0000
Subject: [PATCH 1/2] Initial plan


From e12e3e13a7c120547f44d327133769fe17e82caa Mon Sep 17 00:00:00 2001
From: "copilot-swe-agent[bot]" <198982749+Copilot@users.noreply.github.com>
Date: Thu, 28 May 2026 03:02:25 +0000
Subject: [PATCH 2/2] fix: preserve default undecoded result

---
 lib/MessageDecoder.test.ts | 26 ++++++++++++++++++++++++++
 lib/MessageDecoder.ts      |  5 +++--
 2 files changed, 29 insertions(+), 2 deletions(-)

diff --git a/lib/MessageDecoder.test.ts b/lib/MessageDecoder.test.ts
index a679ed3..3788b4e 100644
--- a/lib/MessageDecoder.test.ts
+++ b/lib/MessageDecoder.test.ts
@@ -61,4 +61,30 @@ describe('MessageDecoder', () => {
     expect(decodeResult.message.label).toBe('H1');
     expect(decodeResult.formatted.items.length).toBe(5);
   });
+
+  test('preserves default fallback result when no plugin decodes', () => {
+    const message = {
+      label: '44',
+      text: 'GARBAGE TEXT THAT SHOULD NOT MATCH',
+    };
+
+    const decodeResult = decoder.decode(message);
+
+    expect(decodeResult.decoded).toBe(false);
+    expect(decodeResult.error).toBe('No known decoder plugin for this message');
+    expect(decodeResult.decoder).toEqual({
+      name: 'none',
+      type: 'none',
+      decodeLevel: 'none',
+    });
+    expect(decodeResult.message).toBe(message);
+    expect(decodeResult.remaining).toEqual({
+      text: message.text,
+    });
+    expect(decodeResult.raw).toEqual({});
+    expect(decodeResult.formatted).toEqual({
+      description: 'Not Decoded',
+      items: [],
+    });
+  });
 });
diff --git a/lib/MessageDecoder.ts b/lib/MessageDecoder.ts
index b40f43a..999f960 100644
--- a/lib/MessageDecoder.ts
+++ b/lib/MessageDecoder.ts
@@ -168,8 +168,9 @@ export class MessageDecoder {
 
     for (let i = 0; i < usablePlugins.length; i++) {
       const plugin = usablePlugins[i];
-      result = plugin.decode(message, options);
-      if (result.decoded) {
+      const pluginResult = plugin.decode(message, options);
+      if (pluginResult.decoded) {
+        result = pluginResult;
         break;
       }
     }