Maui Performance

What it does

When your agent uses it

• : performance optimization
• App performance
• Compiled bindings
• Layout optimization

Example prompts

• “performance optimization”
• “slow startup”
• “app performance”
• “/maui-performance”

Workflow steps

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

1. 1✅ x:DataType on all pages, templates, and data-bound views
2. 2✅ No nested single-child layouts
3. 3✅ Grid preferred over nested StackLayouts
4. 4✅ Images sized to display, caching enabled
5. 5✅ ItemSizingStrategy="MeasureFirstItem" on uniform CollectionViews
6. 6✅ Startup work minimized and deferred
7. 7✅ Trimming enabled and tested
8. 8✅ Profile with dotnet-trace before and after changes

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

  Shell commands in SKILL.md call:

  • dotnet

  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 Performance loads about 1.4k tokens when it runs. Until then it costs about 149 tokens; SKILL.md has 491 words of instructions outside code blocks.

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

~149

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

~1.4k

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). 491 words, ~1,387 tokens.

name

maui-performance

description

Performance optimization guidance for .NET MAUI apps covering profiling, compiled bindings, layout efficiency, image optimization, resource dictionaries, startup time, trimming, and NativeAOT configuration. USE FOR: "performance optimization", "slow startup", "app performance", "compiled bindings", "layout optimization", "image optimization", "trimming", "NativeAOT", "profiling MAUI", "reduce app size", "startup time". DO NOT USE FOR: data binding syntax (use maui-data-binding), deprecated API migration (use maui-current-apis), or unit testing setup (use maui-unit-testing).

<ContentPage xmlns:vm="clr-namespace:MyApp.ViewModels"
             x:DataType="vm:MainViewModel">
    <Label Text="{Binding Title}" />
</ContentPage>

<DataTemplate x:DataType="model:Item">
    <Label Text="{Binding Name}" />
</DataTemplate>

<CollectionView ItemSizingStrategy="MeasureFirstItem"
                ItemsSource="{Binding Items}">

<PropertyGroup>
    <PublishTrimmed>true</PublishTrimmed>
    <TrimMode>full</TrimMode>
</PropertyGroup>

<PropertyGroup>
    <PublishAot>true</PublishAot>
    <PublishTrimmed>true</PublishTrimmed>
</PropertyGroup>

© 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

Just SKILL.md in plugins/maui-skills/skills/maui-performance of davidortinau/maui-skills.

Open the folder on GitHubat commit 79bb4bf