AX Agent 권한 UX 통합 및 복구/좌측패널 단순화 보강

- /permissions, /allowed-tools, /settings permissions를 동일 권한 상태 모델로 통합

- 권한 공통 처리 헬퍼 추가: 모드 적용(ask/auto/deny), 상태 요약 텍스트, 팝업 오픈 경로 통일

- /allowed-tools에서도 ask|auto|deny|status를 일관 동작으로 지원

- /mcp login/logout 및 reset 인증 초기화 반영 상태를 문맥에 맞게 유지

- 좌측/퀵 스트립 단순화 2차: 실패 필터는 rich 표현 레벨에서만 노출, balanced/simple 비노출

- 루프 복구 테스트 보강: unknown/disallowed/no-progress 혼합 관점 회귀 테스트 추가

- 문서 동기화: DEVELOPMENT.md, AGENT_ROADMAP.md에 2026-04-04 추가 진행 이력 반영

- 품질 게이트 확인: build 경고/오류 0, 전체 테스트 421 통과

src/AxCopilot.Tests/Services/AgentLoopCodeQualityTests.cs

@@ -1662,6 +1662,52 @@ public class AgentLoopCodeQualityTests
         response.Should().Contain("반복 횟수: 3");
     }
 
+    [Fact]
+    public void BuildUnknownToolLoopAbortResponse_ShouldGuideToolSearch()
+    {
+        var response = InvokePrivateStatic<string>(
+            "BuildUnknownToolLoopAbortResponse",
+            "unknown_exec",
+            4,
+            new List<string> { "tool_search", "file_read", "process" });
+
+        response.Should().Contain("tool_search");
+        response.Should().Contain("unknown_exec");
+    }
+
+    [Fact]
+    public void BuildDisallowedToolLoopAbortResponse_ShouldGuideToolSearch()
+    {
+        var response = InvokePrivateStatic<string>(
+            "BuildDisallowedToolLoopAbortResponse",
+            "dangerous_exec",
+            5,
+            new List<string> { "tool_search", "file_read", "file_edit" });
+
+        response.Should().Contain("tool_search");
+        response.Should().Contain("dangerous_exec");
+    }
+
+    [Fact]
+    public void MixedRecoverySignals_ShouldRemainConsistentAcrossUnknownDisallowedAndNoProgress()
+    {
+        var unknownPrompt = InvokePrivateStatic<string>(
+            "BuildUnknownToolRecoveryPrompt",
+            "bad_tool",
+            new List<string> { "tool_search", "file_read", "glob" });
+
+        var disallowedPrompt = InvokePrivateStatic<string>(
+            "BuildDisallowedToolRecoveryPrompt",
+            "unsafe_tool",
+            new HashSet<string>(StringComparer.OrdinalIgnoreCase) { "tool_search", "file_read" },
+            new List<string> { "tool_search", "file_read" });
+
+        unknownPrompt.Should().Contain("tool_search");
+        disallowedPrompt.Should().Contain("tool_search");
+        unknownPrompt.Should().Contain("bad_tool");
+        disallowedPrompt.Should().Contain("unsafe_tool");
+    }
+
     [Fact]
     public void ResolveRequestedToolName_MapsCommonAliasWhenTargetIsActive()
     {

src/AxCopilot.Tests/Views/ChatWindowSlashPolicyTests.cs

@@ -24,6 +24,8 @@ public class ChatWindowSlashPolicyTests
     [InlineData("add chrome :: stdio node server.js", "add", "chrome :: stdio node server.js")]
     [InlineData("remove all", "remove", "all")]
     [InlineData("reset", "reset", "")]
+    [InlineData("login chrome token-123", "login", "chrome token-123")]
+    [InlineData("logout all", "logout", "all")]
     [InlineData("status", "status", "")]
     public void ParseMcpAction_ShouldParseExpected(string displayText, string expectedAction, string expectedTarget)
     {
@@ -46,6 +48,18 @@ public class ChatWindowSlashPolicyTests
         argument.Should().Be(expectedArgument);
     }
 
+    [Theory]
+    [InlineData("/allowed-tools", "open", "")]
+    [InlineData("status", "status", "")]
+    [InlineData("ask", "ask", "")]
+    public void ParseGenericAction_ForAllowedTools_ShouldParseExpected(string displayText, string expectedAction, string expectedArgument)
+    {
+        var (action, argument) = ChatWindow.ParseGenericAction(displayText, "/allowed-tools");
+
+        action.Should().Be(expectedAction);
+        argument.Should().Be(expectedArgument);
+    }
+
     [Theory]
     [InlineData(false, "stdio", true, false, null, "Disabled")]
     [InlineData(true, "stdio", false, false, null, "Enabled")]
@@ -119,4 +133,23 @@ public class ChatWindowSlashPolicyTests
 
         tokens.Should().ContainInOrder("stdio", "C:\\\\Program Files\\\\node.exe", "server path.js", "--flag");
     }
+
+    [Fact]
+    public void ParseMcpLoginTarget_ShouldParseServerAndToken()
+    {
+        var (success, server, token, error) = ChatWindow.ParseMcpLoginTarget("chrome abc.def.123");
+
+        success.Should().BeTrue(error);
+        server.Should().Be("chrome");
+        token.Should().Be("abc.def.123");
+    }
+
+    [Fact]
+    public void ParseMcpLoginTarget_ShouldFailWhenTokenMissing()
+    {
+        var (success, _, _, error) = ChatWindow.ParseMcpLoginTarget("chrome");
+
+        success.Should().BeFalse();
+        error.Should().Contain("토큰");
+    }
 }

src/AxCopilot/Views/ChatWindow.xaml.cs

@@ -65,6 +65,7 @@ public partial class ChatWindow : Window
     private bool _userScrolled; // 사용자가 위로 스크롤했는지
     private readonly HashSet<string> _sessionPermissionRules = new(StringComparer.OrdinalIgnoreCase);
     private readonly Dictionary<string, bool> _sessionMcpEnabledOverrides = new(StringComparer.OrdinalIgnoreCase);
+    private readonly Dictionary<string, string> _sessionMcpAuthTokens = new(StringComparer.OrdinalIgnoreCase);
 
     // 경과 시간 표시
     private readonly DispatcherTimer _elapsedTimer;
@@ -1955,6 +1956,48 @@ public partial class ChatWindow : Window
         }
     }
 
+    private bool TryApplyPermissionModeFromAction(string action, out string appliedMode)
+    {
+        appliedMode = PermissionModeCatalog.NormalizeGlobalMode(_settings.Settings.Llm.FilePermission);
+        var next = action switch
+        {
+            "ask" => PermissionModeCatalog.Ask,
+            "auto" => PermissionModeCatalog.Auto,
+            "deny" => PermissionModeCatalog.Deny,
+            _ => null,
+        };
+
+        if (string.IsNullOrWhiteSpace(next))
+            return false;
+
+        _settings.Settings.Llm.FilePermission = next!;
+        _settings.Save();
+        _appState.LoadFromSettings(_settings);
+        UpdatePermissionUI();
+        SaveConversationSettings();
+        RefreshInlineSettingsPanel();
+        appliedMode = next!;
+        return true;
+    }
+
+    private string BuildPermissionStatusText()
+    {
+        ChatConversation? currentConversation;
+        lock (_convLock) currentConversation = _currentConversation;
+        var summary = _appState.GetPermissionSummary(currentConversation);
+        var mode = PermissionModeCatalog.NormalizeGlobalMode(summary.EffectiveMode);
+        var overrides = summary.TopOverrides.Count > 0
+            ? string.Join(", ", summary.TopOverrides.Select(x => $"{x.Key}:{x.Value}"))
+            : "없음";
+        return $"현재 권한 모드: {mode}\n설명: {summary.Description}\n기본값: {summary.DefaultMode} · override: {summary.OverrideCount}개\n상위 override: {overrides}";
+    }
+
+    private void OpenPermissionPanelFromSlash(string command, string usageText)
+    {
+        BtnPermission_Click(this, new RoutedEventArgs());
+        AppendLocalSlashResult(_activeTab, command, $"권한 설정 팝업을 열었습니다. ({usageText})");
+    }
+
     // ──── 데이터 활용 수준 메뉴 ────
 
     private void BtnDataUsage_Click(object sender, System.Windows.Input.MouseButtonEventArgs e)
@@ -5529,7 +5572,7 @@ public partial class ChatWindow : Window
             ("/doctor", "프로젝트/환경 점검 체크를 수행합니다."));
 
         AddHelpSection(contentPanel, "연결/확장 명령어", "환경 연결, 플러그인, 에이전트 관련", fg, fg2, accent, itemBg, hoverBg,
-            ("/mcp", "외부 도구 연결 상태 점검 및 add/remove/reset 관리"),
+            ("/mcp", "외부 도구 연결 상태 점검 및 add/remove/reset/login/logout 관리"),
             ("/agents", "에이전트 분담 전략 제시"),
             ("/plugin", "플러그인 구성 점검"),
             ("/reload-plugins", "플러그인 재로드 점검"),
@@ -5838,7 +5881,7 @@ public partial class ChatWindow : Window
                 continue;
             }
 
-            using var client = new McpClientService(server);
+            using var client = new McpClientService(BuildEffectiveMcpServer(server));
             using var timeoutCts = CancellationTokenSource.CreateLinkedTokenSource(ct);
             timeoutCts.CancelAfter(TimeSpan.FromSeconds(8));
 
@@ -5890,7 +5933,7 @@ public partial class ChatWindow : Window
             if (!string.Equals(transport, "stdio", StringComparison.OrdinalIgnoreCase))
                 continue;
 
-            using var client = new McpClientService(server);
+            using var client = new McpClientService(BuildEffectiveMcpServer(server));
             using var timeoutCts = CancellationTokenSource.CreateLinkedTokenSource(ct);
             timeoutCts.CancelAfter(TimeSpan.FromSeconds(8));
             var connected = await client.ConnectAsync(timeoutCts.Token).ConfigureAwait(false);
@@ -6186,11 +6229,33 @@ public partial class ChatWindow : Window
             "add" => ("add", target),
             "remove" => ("remove", target),
             "reset" => ("reset", target),
+            "login" => ("login", target),
+            "logout" => ("logout", target),
             "status" => ("status", target),
             _ => ("help", text),
         };
     }
 
+    internal static (bool success, string serverTarget, string token, string error) ParseMcpLoginTarget(string target)
+    {
+        var raw = (target ?? "").Trim();
+        if (string.IsNullOrWhiteSpace(raw))
+            return (false, "", "", "사용법: /mcp login <서버명> <토큰>");
+
+        var firstSpace = raw.IndexOf(' ');
+        if (firstSpace <= 0 || firstSpace >= raw.Length - 1)
+            return (false, "", "", "토큰이 누락되었습니다. 사용법: /mcp login <서버명> <토큰>");
+
+        var serverTarget = raw[..firstSpace].Trim();
+        var token = raw[(firstSpace + 1)..].Trim();
+        if (string.IsNullOrWhiteSpace(serverTarget))
+            return (false, "", "", "서버명이 비어 있습니다.");
+        if (string.IsNullOrWhiteSpace(token))
+            return (false, "", "", "토큰이 비어 있습니다.");
+
+        return (true, serverTarget, token, "");
+    }
+
     internal static (bool success, McpServerEntry? entry, string error) ParseMcpAddTarget(string target)
     {
         var raw = (target ?? "").Trim();
@@ -6303,40 +6368,41 @@ public partial class ChatWindow : Window
         {
             var name = string.IsNullOrWhiteSpace(server.Name) ? "(이름 없음)" : server.Name;
             var transport = string.IsNullOrWhiteSpace(server.Transport) ? "stdio" : server.Transport.Trim().ToLowerInvariant();
+            var authSuffix = _sessionMcpAuthTokens.ContainsKey(server.Name ?? "") ? " · Auth(Session)" : "";
             if (!IsMcpServerEnabled(server))
             {
-                lines.Add($"- {name} [{transport}] : {ResolveMcpDisplayStatus(isEnabled: false, transport, runtimeCheck, connected: false, toolCount: null)}");
+                lines.Add($"- {name} [{transport}] : {ResolveMcpDisplayStatus(isEnabled: false, transport, runtimeCheck, connected: false, toolCount: null)}{authSuffix}");
                 continue;
             }
 
             if (!runtimeCheck)
             {
-                lines.Add($"- {name} [{transport}] : {ResolveMcpDisplayStatus(isEnabled: true, transport, runtimeCheck, connected: false, toolCount: null)}");
+                lines.Add($"- {name} [{transport}] : {ResolveMcpDisplayStatus(isEnabled: true, transport, runtimeCheck, connected: false, toolCount: null)}{authSuffix}");
                 continue;
             }
 
             if (!string.Equals(transport, "stdio", StringComparison.OrdinalIgnoreCase))
             {
-                lines.Add($"- {name} [{transport}] : {ResolveMcpDisplayStatus(isEnabled: true, transport, runtimeCheck, connected: false, toolCount: null)}");
+                lines.Add($"- {name} [{transport}] : {ResolveMcpDisplayStatus(isEnabled: true, transport, runtimeCheck, connected: false, toolCount: null)}{authSuffix}");
                 continue;
             }
 
-            using var client = new McpClientService(server);
+            using var client = new McpClientService(BuildEffectiveMcpServer(server));
             using var timeoutCts = CancellationTokenSource.CreateLinkedTokenSource(ct);
             timeoutCts.CancelAfter(TimeSpan.FromSeconds(8));
             var connected = await client.ConnectAsync(timeoutCts.Token).ConfigureAwait(false);
             if (!connected)
             {
-                lines.Add($"- {name} [{transport}] : {ResolveMcpDisplayStatus(isEnabled: true, transport, runtimeCheck, connected: false, toolCount: null)}");
+                lines.Add($"- {name} [{transport}] : {ResolveMcpDisplayStatus(isEnabled: true, transport, runtimeCheck, connected: false, toolCount: null)}{authSuffix}");
                 continue;
             }
 
             var toolCount = client.Tools.Count;
             var statusLabel = ResolveMcpDisplayStatus(isEnabled: true, transport, runtimeCheck, connected: true, toolCount);
-            lines.Add($"- {name} [{transport}] : {statusLabel}");
+            lines.Add($"- {name} [{transport}] : {statusLabel}{authSuffix}");
         }
 
-        lines.Add("명령: /mcp status | enable|disable <서버명|all> | reconnect <서버명|all> | add <서버명> :: stdio|sse ... | remove <서버명|all> | reset");
+        lines.Add("명령: /mcp status | enable|disable <서버명|all> | reconnect <서버명|all> | add <서버명> :: stdio|sse ... | remove <서버명|all> | reset | login <서버명> <토큰> | logout <서버명|all>");
         return string.Join("\n", lines);
     }
 
@@ -6373,6 +6439,26 @@ public partial class ChatWindow : Window
         return partial?.Name ?? "";
     }
 
+    private McpServerEntry BuildEffectiveMcpServer(McpServerEntry server)
+    {
+        var clone = new McpServerEntry
+        {
+            Name = server.Name,
+            Command = server.Command,
+            Args = server.Args?.ToList() ?? new List<string>(),
+            Env = new Dictionary<string, string>(server.Env ?? new Dictionary<string, string>(), StringComparer.OrdinalIgnoreCase),
+            Enabled = server.Enabled,
+            Transport = server.Transport,
+            Url = server.Url,
+        };
+
+        var key = clone.Name ?? "";
+        if (_sessionMcpAuthTokens.TryGetValue(key, out var token) && !string.IsNullOrWhiteSpace(token))
+            clone.Env["MCP_AUTH_TOKEN"] = token;
+
+        return clone;
+    }
+
     private async Task<string> HandleMcpSlashAsync(string displayText, CancellationToken ct = default)
     {
         var llm = _settings.Settings.Llm;
@@ -6380,7 +6466,7 @@ public partial class ChatWindow : Window
         var servers = llm.McpServers;
         var (action, target) = ParseMcpAction(displayText);
         if (action == "help")
-            return "사용법: /mcp, /mcp status, /mcp enable|disable <서버명|all>, /mcp reconnect <서버명|all>, /mcp add <서버명> :: stdio <명령> [인자...] | sse <URL>, /mcp remove <서버명|all>, /mcp reset";
+            return "사용법: /mcp, /mcp status, /mcp enable|disable <서버명|all>, /mcp reconnect <서버명|all>, /mcp add <서버명> :: stdio <명령> [인자...] | sse <URL>, /mcp remove <서버명|all>, /mcp reset, /mcp login <서버명> <토큰>, /mcp logout <서버명|all>";
 
         if (action == "status")
             return await BuildMcpRuntimeStatusTextAsync(servers, runtimeCheck: true, ct).ConfigureAwait(false);
@@ -6389,10 +6475,45 @@ public partial class ChatWindow : Window
         {
             var changed = _sessionMcpEnabledOverrides.Count;
             _sessionMcpEnabledOverrides.Clear();
+            _sessionMcpAuthTokens.Clear();
             return $"세션 MCP 오버라이드를 초기화했습니다. ({changed}개 해제)\n" +
                    await BuildMcpRuntimeStatusTextAsync(servers, runtimeCheck: false, ct).ConfigureAwait(false);
         }
 
+        if (action == "login")
+        {
+            var (ok, serverTarget, token, error) = ParseMcpLoginTarget(target);
+            if (!ok)
+                return error;
+
+            var resolved = ResolveMcpServerName(servers, serverTarget);
+            if (string.IsNullOrWhiteSpace(resolved))
+                return $"로그인 대상 서버를 찾지 못했습니다: {serverTarget}";
+
+            _sessionMcpAuthTokens[resolved] = token;
+            return $"MCP 세션 토큰을 설정했습니다: {resolved}\n" +
+                   await BuildMcpRuntimeStatusTextAsync(servers, runtimeCheck: true, ct).ConfigureAwait(false);
+        }
+
+        if (action == "logout")
+        {
+            if (string.IsNullOrWhiteSpace(target) || string.Equals(target, "all", StringComparison.OrdinalIgnoreCase))
+            {
+                var removed = _sessionMcpAuthTokens.Count;
+                _sessionMcpAuthTokens.Clear();
+                return $"모든 MCP 세션 토큰을 제거했습니다. ({removed}개)\n" +
+                       await BuildMcpRuntimeStatusTextAsync(servers, runtimeCheck: false, ct).ConfigureAwait(false);
+            }
+
+            var resolved = ResolveMcpServerName(servers, target);
+            if (string.IsNullOrWhiteSpace(resolved))
+                return $"로그아웃 대상 서버를 찾지 못했습니다: {target}";
+
+            var removedOne = _sessionMcpAuthTokens.Remove(resolved);
+            return $"MCP 세션 토큰 제거: {resolved} ({(removedOne ? 1 : 0)}개)\n" +
+                   await BuildMcpRuntimeStatusTextAsync(servers, runtimeCheck: false, ct).ConfigureAwait(false);
+        }
+
         if (action == "add")
         {
             var (ok, entry, error) = ParseMcpAddTarget(target);
@@ -6421,6 +6542,7 @@ public partial class ChatWindow : Window
                 var removed = servers.Count;
                 servers.Clear();
                 _sessionMcpEnabledOverrides.Clear();
+                _sessionMcpAuthTokens.Clear();
                 _settings.Save();
                 return $"MCP 서버를 모두 제거했습니다. ({removed}개)";
             }
@@ -6431,6 +6553,7 @@ public partial class ChatWindow : Window
 
             var removedCount = servers.RemoveAll(s => string.Equals(s.Name, resolved, StringComparison.OrdinalIgnoreCase));
             _sessionMcpEnabledOverrides.Remove(resolved);
+            _sessionMcpAuthTokens.Remove(resolved);
             _settings.Save();
             return $"MCP 서버 제거 완료: {resolved} ({removedCount}개)\n" +
                    await BuildMcpRuntimeStatusTextAsync(servers, runtimeCheck: false, ct).ConfigureAwait(false);
@@ -6485,7 +6608,7 @@ public partial class ChatWindow : Window
             return await BuildMcpRuntimeStatusTextAsync(targetServers, runtimeCheck: true, ct).ConfigureAwait(false);
         }
 
-        return "사용법: /mcp, /mcp status, /mcp enable|disable <서버명|all>, /mcp reconnect <서버명|all>, /mcp add <서버명> :: stdio <명령> [인자...] | sse <URL>, /mcp remove <서버명|all>, /mcp reset";
+        return "사용법: /mcp, /mcp status, /mcp enable|disable <서버명|all>, /mcp reconnect <서버명|all>, /mcp add <서버명> :: stdio <명령> [인자...] | sse <URL>, /mcp remove <서버명|all>, /mcp reset, /mcp login <서버명> <토큰>, /mcp logout <서버명|all>";
     }
 
     private string BuildSlashHeapDumpText()
@@ -6676,39 +6799,37 @@ public partial class ChatWindow : Window
         if (string.Equals(slashSystem, "__PERMISSIONS__", StringComparison.Ordinal))
         {
             var (permAction, _) = ParseGenericAction(displayText ?? "", "/permissions");
-            if (permAction is "ask" or "auto" or "deny")
+            if (TryApplyPermissionModeFromAction(permAction, out var appliedMode))
             {
-                var next = permAction switch
-                {
-                    "ask" => PermissionModeCatalog.Ask,
-                    "auto" => PermissionModeCatalog.Auto,
-                    _ => PermissionModeCatalog.Deny,
-                };
-                _settings.Settings.Llm.FilePermission = next;
-                _settings.Save();
-                _appState.LoadFromSettings(_settings);
-                UpdatePermissionUI();
-                SaveConversationSettings();
-                RefreshInlineSettingsPanel();
-                AppendLocalSlashResult(_activeTab, "/permissions", $"권한 모드를 {next}로 변경했습니다.");
+                AppendLocalSlashResult(_activeTab, "/permissions", $"권한 모드를 {appliedMode}로 변경했습니다.\n{BuildPermissionStatusText()}");
                 return;
             }
 
             if (permAction == "status")
             {
-                var mode = PermissionModeCatalog.NormalizeGlobalMode(_settings.Settings.Llm.FilePermission);
-                AppendLocalSlashResult(_activeTab, "/permissions", $"현재 권한 모드: {mode}\n사용법: /permissions ask|auto|deny|status");
+                AppendLocalSlashResult(_activeTab, "/permissions", $"{BuildPermissionStatusText()}\n사용법: /permissions ask|auto|deny|status");
                 return;
             }
 
-            BtnPermission_Click(this, new RoutedEventArgs());
-            AppendLocalSlashResult(_activeTab, "/permissions", "권한 설정 팝업을 열었습니다. (사용법: /permissions ask|auto|deny|status)");
+            OpenPermissionPanelFromSlash("/permissions", "사용법: /permissions ask|auto|deny|status");
             return;
         }
         if (string.Equals(slashSystem, "__ALLOWED_TOOLS__", StringComparison.Ordinal))
         {
-            BtnPermission_Click(this, new RoutedEventArgs());
-            AppendLocalSlashResult(_activeTab, "/allowed-tools", "허용 도구(권한) 설정 팝업을 열었습니다.");
+            var (toolAction, _) = ParseGenericAction(displayText ?? "", "/allowed-tools");
+            if (TryApplyPermissionModeFromAction(toolAction, out var allowedMode))
+            {
+                AppendLocalSlashResult(_activeTab, "/allowed-tools", $"권한 모드를 {allowedMode}로 변경했습니다.\n{BuildPermissionStatusText()}");
+                return;
+            }
+
+            if (toolAction == "status")
+            {
+                AppendLocalSlashResult(_activeTab, "/allowed-tools", $"{BuildPermissionStatusText()}\n사용법: /allowed-tools ask|auto|deny|status");
+                return;
+            }
+
+            OpenPermissionPanelFromSlash("/allowed-tools", "사용법: /allowed-tools ask|auto|deny|status");
             return;
         }
         if (string.Equals(slashSystem, "__MODEL__", StringComparison.Ordinal))
@@ -6729,8 +6850,7 @@ public partial class ChatWindow : Window
 
             if (settingsAction == "permissions")
             {
-                BtnPermission_Click(this, new RoutedEventArgs());
-                AppendLocalSlashResult(_activeTab, "/settings", "권한 설정 팝업을 열었습니다.");
+                OpenPermissionPanelFromSlash("/settings", "사용법: /settings permissions");
                 return;
             }
 
@@ -7979,7 +8099,15 @@ public partial class ChatWindow : Window
             || BtnQuickRunningFilter == null || BtnQuickFailedFilter == null || BtnQuickHotSort == null)
             return;
 
-        ConversationQuickStrip.Visibility = (_runningConversationCount > 0 || _failedConversationCount > 0 || _spotlightConversationCount > 0)
+        var showFailureFilter = GetAgentUiExpressionLevel() == "rich";
+        if (BtnQuickFailedFilter != null)
+            BtnQuickFailedFilter.Visibility = showFailureFilter ? Visibility.Visible : Visibility.Collapsed;
+
+        var hasQuickSignal = _runningConversationCount > 0
+                             || _spotlightConversationCount > 0
+                             || (showFailureFilter && _failedConversationCount > 0);
+
+        ConversationQuickStrip.Visibility = hasQuickSignal
             ? Visibility.Visible
             : Visibility.Collapsed;
 
@@ -7992,9 +8120,12 @@ public partial class ChatWindow : Window
         BtnQuickRunningFilter.BorderThickness = new Thickness(1);
         QuickRunningLabel.Foreground = _runningOnlyFilter ? BrushFromHex("#1D4ED8") : (TryFindResource("SecondaryText") as Brush ?? Brushes.Gray);
 
-        BtnQuickFailedFilter.Background = _failedOnlyFilter ? BrushFromHex("#FEF2F2") : BrushFromHex("#F8FAFC");
-        BtnQuickFailedFilter.BorderBrush = _failedOnlyFilter ? BrushFromHex("#FCA5A5") : BrushFromHex("#E5E7EB");
-        BtnQuickFailedFilter.BorderThickness = new Thickness(1);
+        if (BtnQuickFailedFilter != null)
+        {
+            BtnQuickFailedFilter.Background = _failedOnlyFilter ? BrushFromHex("#FEF2F2") : BrushFromHex("#F8FAFC");
+            BtnQuickFailedFilter.BorderBrush = _failedOnlyFilter ? BrushFromHex("#FCA5A5") : BrushFromHex("#E5E7EB");
+            BtnQuickFailedFilter.BorderThickness = new Thickness(1);
+        }
         QuickFailedLabel.Foreground = _failedOnlyFilter ? BrushFromHex("#991B1B") : (TryFindResource("SecondaryText") as Brush ?? Brushes.Gray);
 
         BtnQuickHotSort.Background = !_sortConversationsByRecent ? BrushFromHex("#F5F3FF") : BrushFromHex("#F8FAFC");