Maui Local Notifications

What it does

When your agent uses it

• : local notification
• Schedule notification
• Notification channel
• Notification permission

Example prompts

• “local notification”
• “schedule notification”
• “notification channel”
• “/maui-local-notifications”

Workflow steps

5 steps, taken from the first numbered list in SKILL.md.

1. 1Define cross-platform INotificationManagerService interface and event args
2. 2Implement Android notification service (channel, AlarmManager, BroadcastReceiver)
3. 3Implement iOS/Mac Catalyst notification service (UNUserNotificationCenter)
4. 4Register platform implementations via DI
5. 5Configure platform permissions and MainActivity

What it can do on your machine

Read from SKILL.md and the folder at commit 79bb4bf. It shows what the files ask for, not the result of running them.

• Tool permissions

  Pre-approves nothing: there is no allowed-tools line, so your agent's usual permission prompts apply.

  From allowed-tools in the SKILL.md frontmatter.

• Runs code

  No scripts in the folder and no shell commands in SKILL.md (its code samples are csharp).

  From the folder's file list and the shell code blocks in SKILL.md.

• Network

  No URLs in SKILL.md.

  From URLs in SKILL.md, links to its own repository left out.

• Credentials

  Names no API keys, tokens, secrets or passwords.

  From names ending in _API_KEY, _TOKEN, _SECRET, _KEY or _PASSWORD in SKILL.md.

Context cost

Maui Local Notifications loads about 1.3k tokens when it runs, and up to ~4.2k if it reads all its reference files. Until then it costs about 163 tokens; SKILL.md has 284 words of instructions outside code blocks.

Always · name and description, kept in context so the agent knows when to use it

~163

When it runs · the whole SKILL.md, loaded when a task matches

~1.3k

With references · SKILL.md plus every file in references/, read only if the agent opens them

~4.2k

Estimates: characters ÷ 4, the usual rule of thumb; real counts depend on the model's tokenizer. Scripts and assets cost tokens only if the agent reads them.

Safety

Automated static check — not a guarantee. Review scripts before installing. It scans the text of SKILL.md for risky patterns (piping downloads into a shell, reading credential files, hidden Unicode, destructive commands); files beside SKILL.md are not scanned.

SKILL.md

The full file from davidortinau/maui-skills at commit 79bb4bf, republished under its MIT licence (© davidortinau). 284 words, ~1,333 tokens.

name

maui-local-notifications

description

Add local notifications to .NET MAUI apps on Android, iOS, and Mac Catalyst. Covers notification channels, permissions, scheduling, foreground/background handling, and DI registration. Works with XAML/MVVM, C# Markup, and MauiReactor. USE FOR: "local notification", "schedule notification", "notification channel", "notification permission", "reminder notification", "alert notification", "in-app notification", "foreground notification". DO NOT USE FOR: push notifications from a server (use maui-push-notifications), permission handling only (use maui-permissions), or app lifecycle background tasks (use maui-app-lifecycle).

// ✅ Correct — API 31+ requires Immutable flag
var pendingIntentFlags = (Build.VERSION.SdkInt >= BuildVersionCodes.S)
    ? PendingIntentFlags.CancelCurrent | PendingIntentFlags.Immutable
    : PendingIntentFlags.CancelCurrent;

// ❌ Wrong — crashes on Android 12+
var pendingIntentFlags = PendingIntentFlags.CancelCurrent;

// ✅ iOS 14+ — use Banner
completionHandler(OperatingSystem.IsIOSVersionAtLeast(14)
    ? UNNotificationPresentationOptions.Banner
    : UNNotificationPresentationOptions.Alert);

// ❌ Always using Alert — deprecated on iOS 14+
completionHandler(UNNotificationPresentationOptions.Alert);

// ✅ Must use #if guards — there's no cross-platform implementation
#if ANDROID
    builder.Services.AddTransient<INotificationManagerService,
        Platforms.Android.NotificationManagerService>();
#elif IOS
    builder.Services.AddTransient<INotificationManagerService,
        Platforms.iOS.NotificationManagerService>();
#elif MACCATALYST
    builder.Services.AddTransient<INotificationManagerService,
        Platforms.MacCatalyst.NotificationManagerService>();
#endif

// ❌ Sending without checking permission — silent failure on API 33+
notificationManager.SendNotification("Title", "Body");

// ✅ Request permission first
#if ANDROID
var status = await Permissions.RequestAsync<Platforms.Android.NotificationPermission>();
if (status != PermissionStatus.Granted) return;
#endif

// ❌ Updating UI directly from notification callback — cross-thread exception
notificationManager.NotificationReceived += (s, e) =>
    myLabel.Text = ((NotificationEventArgs)e).Title;

// ✅ Marshal to UI thread
notificationManager.NotificationReceived += (s, e) =>
    MainThread.BeginInvokeOnMainThread(() =>
        myLabel.Text = ((NotificationEventArgs)e).Title);

© davidortinau, MIT. Rendered from Markdown: HTML in the file is shown as text, images as links, and headings moved down two levels. Raw file

Files

SKILL.md and 1 other file (references) in plugins/maui-skills/skills/maui-local-notifications of davidortinau/maui-skills.

• SKILL.md
• references/local-notifications-api.md

Open the folder on GitHubat commit 79bb4bf