diff --git a/README.md b/README.md
index 595720e..ea2cc14 100644
--- a/README.md
+++ b/README.md
@@ -1220,3 +1220,5 @@ MIT License
   - [ChatWindow.AgentEventRendering.cs](/E:/AX%20Copilot%20-%20Codex/src/AxCopilot/Views/ChatWindow.AgentEventRendering.cs)에 권한 요청/도구 결과 카테고리 chip을 추가했다. 이제 `명령 실행`, `파일 수정`, `웹 요청`, `Git`, `문서`, `스킬`, `MCP` 같은 종류가 상태 chip과 함께 보여서, 어떤 성격의 요청/결과인지 transcript에서 더 빨리 파악할 수 있다.
 - 업데이트: 2026-04-06 13:20 (KST)
   - [ChatWindow.AgentEventRendering.cs](/E:/AX%20Copilot%20-%20Codex/src/AxCopilot/Views/ChatWindow.AgentEventRendering.cs)의 metadata 안내를 callout 구조로 바꿨다. 권한 요청은 `확인 포인트`, 도구 결과는 `다음 권장 작업` 카드형 안내로 보여줘, 같은 transcript 안에서도 요청과 결과의 UX가 더 분리되어 보이게 정리했다.
+- 업데이트: 2026-04-06 13:26 (KST)
+  - 파일 경로가 있는 권한 요청/도구 결과 카드에는 [ChatWindow.AgentEventRendering.cs](/E:/AX%20Copilot%20-%20Codex/src/AxCopilot/Views/ChatWindow.AgentEventRendering.cs) 에서 `프리뷰 열기` 액션을 직접 붙였다. 이제 `미리보기 권장` 상태나 파일 기반 결과에서 transcript 카드만 보고 끝나는 것이 아니라, 바로 우측 preview panel을 열어 확인 흐름으로 이어질 수 있다.
diff --git a/docs/DEVELOPMENT.md b/docs/DEVELOPMENT.md
index f7cf055..930c125 100644
--- a/docs/DEVELOPMENT.md
+++ b/docs/DEVELOPMENT.md
@@ -4949,3 +4949,4 @@ ow + toggle ?쒓컖 ?몄뼱濡??ㅼ떆 ?뺣젹?덈떎.
 - Document update: 2026-04-06 13:08 (KST) - Refined the transcript chips to visually differentiate metadata states instead of rendering every cue in the same neutral style. `ChatWindow.AgentEventRendering.cs` now uses blue for preview guidance, red for high-severity attention, amber for review/partial follow-up, and orange for approval-required continuation cues.
 - Document update: 2026-04-06 13:14 (KST) - Added kind/category chips to permission and tool-result transcript banners so the action domain is visible at a glance. `ChatWindow.AgentEventRendering.cs` now surfaces labels such as `명령 실행`, `파일 수정`, `웹 요청`, `Git`, `문서`, `스킬`, and `MCP` alongside the status-oriented chips.
 - Document update: 2026-04-06 13:20 (KST) - Replaced the plain guidance line with typed callout boxes in `ChatWindow.AgentEventRendering.cs`. Permission requests now show an `확인 포인트` callout, while tool results show a `다음 권장 작업` callout, making the two transcript surfaces read differently even when they share the same chip language.
+- Document update: 2026-04-06 13:26 (KST) - Added an inline `프리뷰 열기` action to file-backed permission/tool-result banners in `ChatWindow.AgentEventRendering.cs`. When a permission request requires preview or a tool result carries a real file path, the transcript card can now open the preview panel directly instead of forcing the user to find the file elsewhere first.
diff --git a/src/AxCopilot/Views/ChatWindow.AgentEventRendering.cs b/src/AxCopilot/Views/ChatWindow.AgentEventRendering.cs
index 430d1d1..eea0c0c 100644
--- a/src/AxCopilot/Views/ChatWindow.AgentEventRendering.cs
+++ b/src/AxCopilot/Views/ChatWindow.AgentEventRendering.cs
@@ -117,6 +117,52 @@ public partial class ChatWindow
         };
     }
 
+    private Border CreateAgentInlineActionButton(string text, string icon, Brush foreground, Brush borderBrush, Action onClick)
+    {
+        var button = new Border
+        {
+            Background = Brushes.Transparent,
+            BorderBrush = borderBrush,
+            BorderThickness = new Thickness(1),
+            CornerRadius = new CornerRadius(999),
+            Padding = new Thickness(6, 2.5, 6, 2.5),
+            Margin = new Thickness(11, 3, 0, 0),
+            Cursor = Cursors.Hand,
+            Child = new StackPanel
+            {
+                Orientation = Orientation.Horizontal,
+                Children =
+                {
+                    new TextBlock
+                    {
+                        Text = icon,
+                        FontFamily = new FontFamily("Segoe MDL2 Assets"),
+                        FontSize = 8,
+                        Foreground = foreground,
+                        VerticalAlignment = VerticalAlignment.Center,
+                    },
+                    new TextBlock
+                    {
+                        Text = text,
+                        FontSize = 8.15,
+                        Foreground = foreground,
+                        Margin = new Thickness(4, 0, 0, 0),
+                        VerticalAlignment = VerticalAlignment.Center,
+                    }
+                }
+            }
+        };
+
+        button.MouseEnter += (_, _) => button.Background = new SolidColorBrush(Color.FromArgb(0x10, 0xFF, 0xFF, 0xFF));
+        button.MouseLeave += (_, _) => button.Background = Brushes.Transparent;
+        button.MouseLeftButtonUp += (_, e) =>
+        {
+            e.Handled = true;
+            onClick();
+        };
+        return button;
+    }
+
     private static string GetPermissionKindLabel(string kind)
     {
         return kind switch
@@ -294,6 +340,20 @@ public partial class ChatWindow
 
         if (chipRow.Children.Count > 0)
             stack.Children.Add(chipRow);
+
+        if (!string.IsNullOrWhiteSpace(evt.FilePath) &&
+            System.IO.File.Exists(evt.FilePath) &&
+            ((permissionPresentation?.RequiresPreview ?? false)
+             || toolResultPresentation != null))
+        {
+            var previewPath = evt.FilePath!;
+            stack.Children.Add(CreateAgentInlineActionButton(
+                "프리뷰 열기",
+                "\uE8A1",
+                BrushFromHex("#2563EB"),
+                BrushFromHex("#BFDBFE"),
+                () => ShowPreviewPanel(previewPath)));
+        }
     }
 
     private void AddAgentEventBanner(AgentEvent evt)