diff --git a/SVSim.UnitTests/BattleNode/Integration/CaptureConformanceTests.cs b/SVSim.UnitTests/BattleNode/Integration/CaptureConformanceTests.cs
index 8473a0a..92c3fe5 100644
--- a/SVSim.UnitTests/BattleNode/Integration/CaptureConformanceTests.cs
+++ b/SVSim.UnitTests/BattleNode/Integration/CaptureConformanceTests.cs
@@ -353,6 +353,28 @@ public class CaptureConformanceTests
         Assert.That(ourEntry.GetProperty("to").GetInt32(), Is.EqualTo(20));
     }
 
+    [Test]
+    public void MineCopyTokens_extracts_the_prod_capture_copy_op_shape()
+    {
+        // Prod copy op (battle-traffic_tk2_regular.ndjson:196) — the ONLY copy op in any capture, an
+        // isSelf:0 Echo: {add:{idx:[49], isSelf:0, card:{baseIdx:21, isPremium:0}}}. No later play-reveal
+        // of idx 49 exists, so this locks the copy-op PARSE + map-resolution only (spec §5), not a reveal.
+        var orderList = new List<object?>
+        {
+            new Dictionary<string, object?> { ["add"] = new Dictionary<string, object?>
+                { ["idx"] = new List<object?> { 49L }, ["isSelf"] = 0L,
+                  ["card"] = new Dictionary<string, object?> { ["baseIdx"] = 21L, ["isPremium"] = 0L } } },
+        };
+        // baseIdx 21 lives in the opponent's (isSelf:0 -> otherMap) index space. The capture never reveals
+        // idx 21's cardId, so seed a sentinel; this verifies parse + resolution of the op shape, not an id.
+        var otherMap = new Dictionary<int, long> { [21] = 123_456_789L };
+        var mined = SVSim.BattleNode.Sessions.Dispatch.KnownListBuilder
+            .MineCopyTokens(orderList, new Dictionary<int, long>(), otherMap)
+            .ToList();
+
+        Assert.That(mined, Is.EquivalentTo(new[] { (49, 123_456_789L, 0) }));
+    }
+
     [Test]
     public void SynthesizedChoiceGeneration_matches_prod_recv_keyAction_and_knownList_shape()
     {