diff --git a/src-tauri/src/acp/connection.rs b/src-tauri/src/acp/connection.rs
index 1528c6a..1af295d 100644
--- a/src-tauri/src/acp/connection.rs
+++ b/src-tauri/src/acp/connection.rs
@@ -514,10 +514,11 @@ async fn run_connection(
                 let conn_id = conn_id.clone();
                 let handle = handle.clone();
                 let perms = perms.clone();
+                let perm_cwd = cwd_string.clone();
                 async move |req: RequestPermissionRequest,
                             responder: Responder<RequestPermissionResponse>,
                             _cx: ConnectionTo<Agent>| {
-                    handle_permission_request(&conn_id, &handle, &perms, req, responder).await;
+                    handle_permission_request(&conn_id, &handle, &perms, &perm_cwd, req, responder).await;
                     Ok(())
                 }
             },
@@ -861,6 +862,7 @@ async fn handle_permission_request(
     conn_id: &str,
     handle: &tauri::AppHandle,
     perms: &PendingPermissions,
+    cwd: &str,
     req: RequestPermissionRequest,
     responder: Responder<RequestPermissionResponse>,
 ) {
@@ -882,7 +884,36 @@ async fn handle_permission_request(
         })
         .collect();
 
-    let tool_call_value = serde_json::to_value(&req.tool_call).unwrap_or_default();
+    let mut tool_call_value = serde_json::to_value(&req.tool_call).unwrap_or_default();
+
+    // Resolve line numbers in rawInput for edit tool permission requests
+    if let Some(obj) = tool_call_value.as_object_mut() {
+        let raw_input_key = if obj.contains_key("rawInput") {
+            Some("rawInput")
+        } else if obj.contains_key("raw_input") {
+            Some("raw_input")
+        } else {
+            None
+        };
+        if let Some(key) = raw_input_key {
+            if let Some(input_val) = obj.get(key).cloned() {
+                let input_text = match &input_val {
+                    serde_json::Value::String(s) => Some(s.clone()),
+                    v if !v.is_null() => Some(v.to_string()),
+                    _ => None,
+                };
+                if let Some(text) = input_text {
+                    let resolved = resolve_live_tool_input(&text, Some(cwd));
+                    if resolved != text {
+                        obj.insert(
+                            key.to_string(),
+                            serde_json::Value::String(resolved),
+                        );
+                    }
+                }
+            }
+        }
+    }
 
     perms.lock().await.insert(request_id.clone(), responder);
 
diff --git a/src/components/chat/permission-dialog.tsx b/src/components/chat/permission-dialog.tsx
index 8dd3bdc..f204780 100644
--- a/src/components/chat/permission-dialog.tsx
+++ b/src/components/chat/permission-dialog.tsx
@@ -5,7 +5,6 @@ import { useTranslations } from "next-intl"
 import {
   ShieldAlert,
   Terminal,
-  FilePenLine,
   ListTodo,
   Compass,
   FileText,
@@ -15,6 +14,7 @@ import {
 import { Button } from "@/components/ui/button"
 import { Badge } from "@/components/ui/badge"
 import { CodeBlock } from "@/components/ai-elements/code-block"
+import { UnifiedDiffPreview } from "@/components/diff/unified-diff-preview"
 import { MessageResponse } from "@/components/ai-elements/message"
 import type { PendingPermission } from "@/contexts/acp-connections-context"
 import { parsePermissionToolCall } from "@/lib/permission-request"
@@ -86,38 +86,8 @@ export function PermissionDialog({
           </div>
         )}
 
-        {hasFileChanges && (
-          <div className="space-y-1.5 rounded-md border border-border/60 bg-muted/20 p-2">
-            <div className="flex flex-wrap items-center gap-2 text-xs text-muted-foreground">
-              <FilePenLine className="h-3.5 w-3.5" />
-              <span>
-                {t("filesSummary", { count: parsed.fileChanges.length })}
-              </span>
-              {(parsed.additions > 0 || parsed.deletions > 0) && (
-                <span>
-                  +{parsed.additions} / -{parsed.deletions}
-                </span>
-              )}
-            </div>
-            <div className="space-y-1 rounded-md bg-muted/40 p-2">
-              {parsed.fileChanges.slice(0, 8).map((change, index) => (
-                <div
-                  key={`${change.path}-${index}`}
-                  className="break-all font-mono text-xs text-foreground/90"
-                >
-                  {change.path}
-                </div>
-              ))}
-              {parsed.fileChanges.length > 8 && (
-                <div className="text-xs text-muted-foreground">
-                  {t("moreFiles", { count: parsed.fileChanges.length - 8 })}
-                </div>
-              )}
-            </div>
-            {parsed.diffPreview && (
-              <CodeBlock code={parsed.diffPreview} language="diff" />
-            )}
-          </div>
+        {hasFileChanges && parsed.diffPreview && (
+          <UnifiedDiffPreview diffText={parsed.diffPreview} />
         )}
 
         {hasPlan && (
diff --git a/src/lib/permission-request.ts b/src/lib/permission-request.ts
index d98f055..bc302b0 100644
--- a/src/lib/permission-request.ts
+++ b/src/lib/permission-request.ts
@@ -145,7 +145,15 @@ function buildCompactDiffFromTexts(
     Math.min(oldLines.length, oldLines.length - suffix + contextLines)
   )
 
-  const parts: string[] = [`--- ${path}`, `+++ ${path}`]
+  const oldStart = Math.max(1, prefix - before.length + 1)
+  const oldCount = before.length + removed.length + after.length
+  const newCount = before.length + added.length + after.length
+
+  const parts: string[] = [
+    `--- ${path}`,
+    `+++ ${path}`,
+    `@@ -${oldStart},${oldCount} +${oldStart},${newCount} @@`,
+  ]
   for (const line of before) parts.push(` ${line}`)
   for (const line of removed) parts.push(`-${line}`)
   for (const line of added) parts.push(`+${line}`)