Merge branch 'claudedo/0a185f8e823d42fc9a5b97c5eb91c616'

tests/ClaudeDo.Worker.Tests/External/ExternalMcpToolSchemaTests.cs

@@ -106,7 +106,7 @@ public sealed class ExternalMcpToolSchemaTests
         "list_runs", "get_run", "get_task_log",
         "list_agents",
         "reset_failed_task", "submit_task_for_review",
-        "handoff_list_handler",
+        "handoff_list_handler", "get_handoff_status",
         "get_app_settings",
         "wait_for_task_change",
         "get_queue_state",

tests/ClaudeDo.Worker.Tests/External/HandoffMcpToolsTests.cs

@@ -277,4 +277,64 @@ public sealed class HandoffMcpToolsTests : IDisposable
         Assert.False(resultB.Coerced);
         Assert.Equal("wait", resultB.NextPhase);
     }
+
+    [Fact]
+    public async Task GetHandoffStatus_NeverHandedOff_ReportsZeroRoundFullBudget()
+    {
+        var listId = await SeedListAsync();
+        var handlerTask = await SeedTaskAsync(listId);
+
+        var sut = BuildSut();
+        var status = await sut.GetHandoffStatus(handlerTask.Id, CancellationToken.None);
+
+        Assert.Equal(handlerTask.Id, status.TaskId);
+        Assert.Equal(handlerTask.Number, status.Number);
+        Assert.Equal(0, status.Round);
+        Assert.Equal(HandoffRoundTracker.MaxHandoffs, status.Remaining);
+        Assert.False(status.Final);
+    }
+
+    [Fact]
+    public async Task GetHandoffStatus_AfterHandoffs_ReflectsTrackerState()
+    {
+        var listId = await SeedListAsync();
+        var handlerTask = await SeedTaskAsync(listId);
+        var survivor = await SeedTaskAsync(listId, TaskStatus.WaitingForReview, title: "Survivor");
+        var tracker = new HandoffRoundTracker();
+        var survivors = new[] { survivor.Id };
+
+        await BuildSut(tracker).HandoffListHandler(handlerTask.Id, survivors, "wait", CancellationToken.None);
+        await BuildSut(tracker).HandoffListHandler(handlerTask.Id, survivors, "merge", CancellationToken.None);
+
+        var status = await BuildSut(tracker).GetHandoffStatus(handlerTask.Id, CancellationToken.None);
+
+        Assert.Equal(2, status.Round);
+        Assert.Equal(HandoffRoundTracker.MaxHandoffs - 2, status.Remaining);
+        Assert.False(status.Final);
+    }
+
+    [Fact]
+    public async Task GetHandoffStatus_AfterMergeFinal_ReportsFinal()
+    {
+        var listId = await SeedListAsync();
+        var handlerTask = await SeedTaskAsync(listId);
+        var survivor = await SeedTaskAsync(listId, TaskStatus.WaitingForReview, title: "Survivor");
+        var tracker = new HandoffRoundTracker();
+        var survivors = new[] { survivor.Id };
+
+        await BuildSut(tracker).HandoffListHandler(handlerTask.Id, survivors, "merge_final", CancellationToken.None);
+
+        var status = await BuildSut(tracker).GetHandoffStatus(handlerTask.Id, CancellationToken.None);
+
+        Assert.True(status.Final);
+        Assert.Equal(1, status.Round);
+    }
+
+    [Fact]
+    public async Task GetHandoffStatus_UnknownTask_Throws()
+    {
+        var sut = BuildSut();
+        await Assert.ThrowsAsync<InvalidOperationException>(() =>
+            sut.GetHandoffStatus("missing", CancellationToken.None));
+    }
 }