diff --git a/CHANGELOG.md b/CHANGELOG.md
index 65d59dc9..dd8f1211 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -7,6 +7,10 @@ and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0
 
 ## [Unreleased]
 
+### Added
+
+- Confirmation dialogs for deep link queries, connection imports, and pre-connect scripts
+
 ## [0.25.0] - 2026-03-27
 
 ### Added
diff --git a/TablePro/AppDelegate+FileOpen.swift b/TablePro/AppDelegate+FileOpen.swift
index a36aed20..d20ccc40 100644
--- a/TablePro/AppDelegate+FileOpen.swift
+++ b/TablePro/AppDelegate+FileOpen.swift
@@ -37,7 +37,7 @@ extension AppDelegate {
         let deeplinks = urls.filter { $0.scheme == "tablepro" }
         if !deeplinks.isEmpty {
             Task { @MainActor in
-                for url in deeplinks { self.handleDeeplink(url) }
+                for url in deeplinks { await self.handleDeeplink(url) }
             }
         }
 
@@ -115,7 +115,7 @@ extension AppDelegate {
 
     // MARK: - Deeplink Handling
 
-    private func handleDeeplink(_ url: URL) {
+    private func handleDeeplink(_ url: URL) async {
         guard let action = DeeplinkHandler.parse(url) else { return }
 
         switch action {
@@ -129,14 +129,23 @@ extension AppDelegate {
             }
 
         case .openQuery(let name, let sql):
+            let preview = (sql as NSString).length > 300 ? String(sql.prefix(300)) + "…" : sql
+            let confirmed = await AlertHelper.confirmDestructive(
+                title: String(localized: "Open Query from Link"),
+                message: String(localized: "An external link wants to open a query on connection \"\(name)\":\n\n\(preview)"),
+                confirmButton: String(localized: "Open Query"),
+                cancelButton: String(localized: "Cancel"),
+                window: NSApp.keyWindow
+            )
+            guard confirmed else { return }
             connectViaDeeplink(connectionName: name) { connectionId in
                 EditorTabPayload(connectionId: connectionId, tabType: .query,
                                  initialQuery: sql)
             }
 
         case .importConnection(let name, let host, let port, let type, let username, let database):
-            handleImportDeeplink(name: name, host: host, port: port, type: type,
-                                 username: username, database: database)
+            await handleImportDeeplink(name: name, host: host, port: port, type: type,
+                                       username: username, database: database)
         }
     }
 
@@ -193,7 +202,18 @@ extension AppDelegate {
     private func handleImportDeeplink(
         name: String, host: String, port: Int,
         type: DatabaseType, username: String, database: String
-    ) {
+    ) async {
+        let userPart = username.isEmpty ? "" : "\(username)@"
+        let details = "\(type.rawValue)://\(userPart)\(host):\(port)/\(database)"
+        let confirmed = await AlertHelper.confirmDestructive(
+            title: String(localized: "Import Connection from Link"),
+            message: String(localized: "An external link wants to add a database connection:\n\nName: \(name)\n\(details)"),
+            confirmButton: String(localized: "Add Connection"),
+            cancelButton: String(localized: "Cancel"),
+            window: NSApp.keyWindow
+        )
+        guard confirmed else { return }
+
         let connection = DatabaseConnection(
             name: name, host: host, port: port,
             database: database, username: username, type: type
diff --git a/TablePro/Core/Database/DatabaseManager.swift b/TablePro/Core/Database/DatabaseManager.swift
index 5aa8b7e3..f9112058 100644
--- a/TablePro/Core/Database/DatabaseManager.swift
+++ b/TablePro/Core/Database/DatabaseManager.swift
@@ -5,6 +5,7 @@
 //  Created by Ngo Quoc Dat on 16/12/25.
 //
 
+import AppKit
 import Foundation
 import Observation
 import os
@@ -123,6 +124,22 @@ final class DatabaseManager {
         if let script = resolvedConnection.preConnectScript,
            !script.trimmingCharacters(in: .whitespacesAndNewlines).isEmpty
         {
+            let confirmed = await AlertHelper.confirmDestructive(
+                title: String(localized: "Pre-Connect Script"),
+                message: String(localized: "Connection \"\(connection.name)\" has a script that will run before connecting:\n\n\(script)"),
+                confirmButton: String(localized: "Run Script"),
+                cancelButton: String(localized: "Cancel"),
+                window: NSApp.keyWindow
+            )
+
+            guard confirmed else {
+                removeSessionEntry(for: connection.id)
+                currentSessionId = nil
+                throw PreConnectHookRunner.HookError.scriptFailed(
+                    exitCode: 1, stderr: "User cancelled pre-connect script"
+                )
+            }
+
             do {
                 try await PreConnectHookRunner.run(script: script)
             } catch {
diff --git a/docs/features/deep-links.mdx b/docs/features/deep-links.mdx
index 8dee17f7..18aee69c 100644
--- a/docs/features/deep-links.mdx
+++ b/docs/features/deep-links.mdx
@@ -111,7 +111,7 @@ open "tablepro://connect/Production/database/analytics/table/events"
 tablepro://connect/{name}/query?sql={encoded_sql}
 ```
 
-Connects and opens a new query tab with the SQL pre-filled. The SQL must be percent-encoded.
+Connects and opens a new query tab with the SQL pre-filled. The SQL must be percent-encoded. A confirmation dialog shows the SQL before opening, so you can verify the query is safe.
 
 ```bash
 open "tablepro://connect/Production/query?sql=SELECT%20*%20FROM%20users%20LIMIT%2010"
@@ -123,7 +123,7 @@ open "tablepro://connect/Production/query?sql=SELECT%20*%20FROM%20users%20LIMIT%
 tablepro://import?name={n}&host={h}&port={p}&type={t}&username={u}&database={db}
 ```
 
-Creates a new saved connection and opens the connection form for review. You can add a password before connecting.
+Creates a new saved connection and opens the connection form for review. A confirmation dialog shows the connection details before adding, so you can reject unexpected imports. You can add a password before connecting.
 
 ```bash
 open "tablepro://import?name=Staging&host=db.example.com&port=5432&type=postgresql&username=admin&database=mydb"