diff --git a/src/ClaudeDo.Worker/Runner/TaskRunner.cs b/src/ClaudeDo.Worker/Runner/TaskRunner.cs
index 1d7808a6..ff9b9879 100644
--- a/src/ClaudeDo.Worker/Runner/TaskRunner.cs
+++ b/src/ClaudeDo.Worker/Runner/TaskRunner.cs
@@ -129,6 +129,14 @@ public sealed class TaskRunner
                     return;
                 }
             }
+            else
+            {
+                // Queue-claimed dispatches skip StartRunningAsync (the atomic SQL claim in
+                // QueuePicker already flipped the row to Running), so it never broadcasts
+                // TaskUpdated for this transition. Send it here so the task-list badge flips
+                // live instead of staying on "Queued" until the run finishes.
+                await _broadcaster.TaskUpdated(task.Id);
+            }
             await _broadcaster.TaskStarted(slot, task.Id, now);
 
             await _skillSeeder.SeedAsync(runDir, resolvedConfig.SkillNames, wtCtx is not null, ct);
@@ -251,7 +259,14 @@ public sealed class TaskRunner
                 return;
             }
         }
+        else
+        {
+            // Queue-claimed dispatches skip StartRunningAsync, so broadcast TaskUpdated here
+            // (see RunAsync for the full rationale).
+            await _broadcaster.TaskUpdated(taskId);
+        }
         await _broadcaster.TaskStarted(slot, taskId, now);
+        await _broadcaster.TaskUpdated(taskId);
 
         await _skillSeeder.SeedAsync(runDir, resolvedConfig.SkillNames, wtCtx is not null, ct);
 
diff --git a/tests/ClaudeDo.Worker.Tests/Runner/QueueClaimTaskUpdatedBroadcastTests.cs b/tests/ClaudeDo.Worker.Tests/Runner/QueueClaimTaskUpdatedBroadcastTests.cs
new file mode 100644
index 00000000..d1ba695f
--- /dev/null
+++ b/tests/ClaudeDo.Worker.Tests/Runner/QueueClaimTaskUpdatedBroadcastTests.cs
@@ -0,0 +1,82 @@
+using ClaudeDo.Data;
+using ClaudeDo.Data.Git;
+using ClaudeDo.Data.Models;
+using ClaudeDo.Data.Repositories;
+using ClaudeDo.Worker.Config;
+using ClaudeDo.Worker.Hub;
+using ClaudeDo.Worker.Runner;
+using ClaudeDo.Worker.Tests.Infrastructure;
+using Microsoft.Extensions.Logging.Abstractions;
+using TaskStatus = ClaudeDo.Data.Models.TaskStatus;
+using Xunit;
+
+namespace ClaudeDo.Worker.Tests.Runner;
+
+/// Regression test for the queue-claim badge bug: QueuePicker's raw-SQL Queued->Running claim
+/// bypasses TaskStateService.StartRunningAsync (which normally broadcasts TaskUpdated), so
+/// alreadyClaimed=true dispatches must broadcast it themselves — otherwise the UI task-list
+/// badge stays on "Queued" until the run finishes instead of flipping live.
+public sealed class QueueClaimTaskUpdatedBroadcastTests : IDisposable
+{
+    private readonly DbFixture _db = new();
+    private readonly string _tempDir;
+    private readonly WorkerConfig _cfg;
+    private readonly CapturingHubContext _hubContext = new();
+
+    public QueueClaimTaskUpdatedBroadcastTests()
+    {
+        _tempDir = Path.Combine(Path.GetTempPath(), $"cd_queueclaim_{Guid.NewGuid():N}");
+        Directory.CreateDirectory(_tempDir);
+        _cfg = new WorkerConfig { SandboxRoot = _tempDir, LogRoot = _tempDir };
+    }
+
+    public void Dispose() { _db.Dispose(); try { Directory.Delete(_tempDir, true); } catch { } }
+
+    private TaskRunner BuildRunner(IClaudeProcess claude)
+    {
+        var dbFactory = _db.CreateFactory();
+        var state = TaskStateServiceBuilder.Build(dbFactory).State;
+        var wt = new WorktreeManager(new GitService(), dbFactory, _cfg, NullLogger<WorktreeManager>.Instance);
+        return new TaskRunner(claude, dbFactory, new HubBroadcaster(_hubContext), wt,
+            new ClaudeArgsBuilder(), _cfg, NullLogger<TaskRunner>.Instance, state, new TaskRunTokenRegistry(),
+            new AttachmentStore(), new FakeSessionSkillSeeder(), new FakeTranscriptUsageReader());
+    }
+
+    [Fact]
+    public async Task RunAsync_with_alreadyClaimed_broadcasts_TaskUpdated_before_the_run_finishes()
+    {
+        string listId = Guid.NewGuid().ToString(), taskId = Guid.NewGuid().ToString();
+        using (var ctx = _db.CreateContext())
+        {
+            ctx.Lists.Add(new ListEntity { Id = listId, Name = "L", WorkingDir = null, CreatedAt = DateTime.UtcNow });
+            // Mirrors what QueuePicker's raw SQL claim already did before dispatch.
+            ctx.Tasks.Add(new TaskEntity
+            {
+                Id = taskId, ListId = listId, Title = "T", Status = TaskStatus.Running,
+                StartedAt = DateTime.UtcNow, CreatedAt = DateTime.UtcNow,
+            });
+            await ctx.SaveChangesAsync();
+        }
+
+        var processStarted = new TaskCompletionSource();
+        var releaseProcess = new TaskCompletionSource();
+        var fake = new FakeClaudeProcess(async (_, _, _, _, _) =>
+        {
+            processStarted.TrySetResult();
+            await releaseProcess.Task;
+            return new RunResult { ExitCode = 0, ResultMarkdown = "ok" };
+        });
+        var runner = BuildRunner(fake);
+
+        Task runTask;
+        using (var ctx = _db.CreateContext())
+            runTask = runner.RunAsync((await new TaskRepository(ctx).GetByIdAsync(taskId))!, "queue", CancellationToken.None, alreadyClaimed: true);
+
+        await processStarted.Task;
+
+        Assert.Contains(_hubContext.Proxy.Calls, c => c.Method == "TaskUpdated" && (string)c.Args[0]! == taskId);
+
+        releaseProcess.TrySetResult();
+        await runTask;
+    }
+}