Getting it into your agent
One page per mod, every tool's command on it. A separate URL per tool would split the same page into five that compete with each other.
npx skills add linuxdevel/Avalonia-skills --skill avalonia-controlsgit clone --depth 1 https://github.com/linuxdevel/Avalonia-skillsWrote this? Show the measurements
A badge with what this costs and how it scanned, read live from this page, so it follows the numbers instead of freezing them. Markdown for a README, HTML for a documentation site or a project page.
[](https://agentmods.dev/skills/linuxdevel/avalonia-skills/avalonia-controls)<a href="https://agentmods.dev/skills/linuxdevel/avalonia-skills/avalonia-controls"><img src="https://agentmods.dev/badge/skills/linuxdevel/avalonia-skills/avalonia-controls/github.svg" alt="Measured on agentmods" height="20"></a>Or the 80×15 button, for a site that already has a row of RSS and ATOM ones. Only the verdict fits; the numbers stay here.
<a href="https://agentmods.dev/skills/linuxdevel/avalonia-skills/avalonia-controls"><img src="https://agentmods.dev/badge/skills/linuxdevel/avalonia-skills/avalonia-controls.svg" alt="Reviewed on agentmods" width="80" height="20"></a>What it costs to keep this loaded
Counted locally with the o200k_base tokenizer, which is exact for GPT models; Claude uses its own tokenizer and its counts differ. Treat this as one consistent yardstick across the catalogue rather than a bill. Prices are per million input tokens.
| Model | Per session | Once invoked |
|---|---|---|
| Fable 5.1 | $0.00027 | $0.00692 |
| Opus 5 | $0.00014 | $0.00346 |
| Sonnet 5 | $0.00005 | $0.00138 |
| Haiku 4.5 | $0.00003 | $0.00069 |
Grade A, and why
avalonia-controls scanned grade A with 0 findings against 26 rules in 11 categories — prompt injection, anti-refusal, data exfiltration, privilege escalation, supply chain, agent snooping, system-prompt leakage, SSRF and excessive agency — measured 9d ago.
A static scan of the body, not an audit. Every finding is printed with the line that produced it so you can judge whether it matters here. A mod is markdown that instructs an agent; that is exactly why what it instructs is worth reading.
Nothing flagged
None of the 26 patterns this scan looks for appear in this file: no shell pipes, no recursive deletes, no credential paths, no hidden text, no instruction-override or anti-refusal phrasing, no agent-config snooping. That is not a guarantee, it is the absence of the things that are checkable.
How it starts
The opening of the file, as written. The whole thing — 50 lines — stays where its author put it; the contents beside it link to each section on GitHub.
Avalonia Controls
Overview
Avalonia ships 60+ built-in controls organized by category. Load the sub-subskill for the relevant control category.
Routing Table
| Controls | Load sub-subskill |
|---|---|
| Button, ToggleButton, RadioButton, CheckBox, TextBox, ComboBox, Slider, Calendar, DatePicker, NumericUpDown | avalonia-controls/input |
| TextBlock, Label, ListBox, DataGrid, TreeView, Carousel, MarkdownViewer | avalonia-controls/data-display |
| Border, ScrollViewer, Grid, StackPanel, WrapPanel, DockPanel, UniformGrid, SplitView, Expander | avalonia-controls/layout |
| TabControl, Menu, ContextMenu, CommandBar, TrayIcon | avalonia-controls/navigation |
| Image, DrawingImage, MediaPlayerControl, WebView | avalonia-controls/media |
Community Control Libraries
For controls beyond the built-ins, these libraries are widely used:
| Library | NuGet | Highlights |
|---|---|---|
| FluentAvalonia | FluentAvalonia |
WinUI3-style controls (NavigationView, InfoBar, TeachingTip, etc.) |
| Ursa.Avalonia | Irihi.Ursa |
Full-featured cross-platform UI control set |
| SukiUI | SukiUI |
Flat-design controls and dialogs |
| AvaloniaEdit | AvaloniaEdit |
Code editor with syntax highlighting (port of AvalonEdit) |
| DialogHost.Avalonia | DialogHost.Avalonia |
Managed async overlay dialogs |
| MessageBox.Avalonia | MsgBox.Avalonia |
Simple message box dialogs |
| AvaloniaColorPicker | AvaloniaColorPicker |
RGB/HSB/CIELAB color picker |
| PanAndZoom | PanAndZoom |
Pan and zoom container control |
| AvaloniaHex | AvaloniaHex |
Hex editor control |
| RangeSlider | Avalonia.RangeSlider |
Dual-handle range slider |
| Tabalonia | Tabalonia |
Draggable tab control |
| AvaloniaAutoGrid | AvaloniaAutoGrid |
Auto-sizing Grid replacement |
| AvaloniaProgressRing | AvaloniaProgressRing |
Circular progress ring |
| Paginator.Avalonia | AvaloniaUtils.Paginator |
Pagination control |
| NodifyAvalonia | GitHub: BAndysc/nodify-avalonia | Node-based editor controls |
| Dock | Dock.Avalonia |
VS-style docking layout |
| LiveCharts2 | LiveChartsCore.SkiaSharpView.Avalonia |
Interactive charts and gauges |
| OxyPlot | OxyPlot.Avalonia |
Scientific/engineering plots |
| ScottPlot | ScottPlot.Avalonia |
Fast interactive data plots |
| Markdown.Avalonia | Markdown.Avalonia |
Markdown renderer control |
| GMap.NET | GMap.NET.Avalonia |
Maps (Google, OpenStreetMap, etc.) |
| CherylUI | GitHub: kikipoulet/CherylUI | Mobile-focused control library |
What ships with it
5 files beside SKILL.md in the same directory: the scripts, references and assets a skill reads on demand. Not counted in the per-session cost; read them before you install if any of them is executable.
What this file has done since we first saw it
Hashed on every crawl. A supply-chain change to an agent config is a question of when, not whether, so the history is kept rather than the latest state alone.
- 9d ago First seen · 50 lines · 27 tokens per session scan A 6b130b88d9f5
avalonia-controls is a skill published in the GitHub repository linuxdevel/Avalonia-skills (37 stars, last pushed 4mo ago), licensed MIT. It adds 27 tokens to every session and 692 once invoked, about $0.0001 per session on Opus 5. A static security scan graded it A with 0 findings. No closer match exists in the catalogue, so it is treated as the original; first seen 2026-08-30.
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