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-layoutgit 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-layout)<a href="https://agentmods.dev/skills/linuxdevel/avalonia-skills/avalonia-layout"><img src="https://agentmods.dev/badge/skills/linuxdevel/avalonia-skills/avalonia-layout/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-layout"><img src="https://agentmods.dev/badge/skills/linuxdevel/avalonia-skills/avalonia-layout.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 | $0.00034 | $0.02363 |
| Opus 5.5 | $0.00014 | $0.00945 |
| Sonnet 5.5 | $0.00007 | $0.00473 |
| Haiku 4.5 | $0.00003 | $0.00236 |
Grade A, and why
avalonia-layout 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 — 297 lines — stays where its author put it; the contents beside it link to each section on GitHub.
Avalonia Layout
Overview
Avalonia layout uses a two-pass measure/arrange system. Every control has Margin (space outside the control), Padding (space inside), HorizontalAlignment, and VerticalAlignment. Layout is done with Panel subclasses — choose the panel that matches the arrangement model.
Panel Quick Reference
| Panel | Arranges children | Use when |
|---|---|---|
Grid |
In defined rows/columns | Complex layouts, forms, dashboards |
StackPanel |
Linearly (H or V) | Toolbars, lists, vertical forms |
WrapPanel |
Linearly, wraps to next row/col | Tag clouds, icon grids, badge lists |
DockPanel |
Docked to edges + fill center | App shell, menu+content+statusbar |
Canvas |
Absolute x/y positions | Drawing surfaces, overlays, diagrams |
UniformGrid |
Equal-size cells, auto rows/cols | Grids of same-size items |
RelativePanel |
Relative to siblings or panel | Adaptive layouts, dynamic alignment |
Grid
Sizing Modes
| Syntax | Meaning |
|---|---|
* |
Proportional — takes remaining space |
2* |
Takes 2× the share of * |
Auto |
Sized to content |
200 |
Fixed pixel size |
Basic Grid
<Grid RowDefinitions="Auto,*,Auto"
ColumnDefinitions="200,*">
<!-- Header spans full width -->
<Border Grid.Row="0" Grid.ColumnSpan="2" Background="Navy" Height="50"/>
<!-- Sidebar -->
<ListBox Grid.Row="1" Grid.Column="0"/>
<!-- Main content -->
<ScrollViewer Grid.Row="1" Grid.Column="1">
<StackPanel Margin="16" Spacing="8"/>
</ScrollViewer>
<!-- Footer spans full width -->
<Border Grid.Row="2" Grid.ColumnSpan="2" Padding="8,4"/> <!-- no built-in StatusBar control; use Border/StackPanel -->
</Grid>
Login Form Example
<Grid RowDefinitions="Auto,Auto,Auto,Auto"
ColumnDefinitions="120,*"
Width="320"
HorizontalAlignment="Center"
VerticalAlignment="Center">
<TextBlock Grid.Row="0" Grid.Column="0"
Text="Username:"
VerticalAlignment="Center"
Margin="0,0,8,8"/>
<TextBox Grid.Row="0" Grid.Column="1"
Margin="0,0,0,8"/>
<TextBlock Grid.Row="1" Grid.Column="0"
Text="Password:"
VerticalAlignment="Center"
Margin="0,0,8,8"/>
<TextBox Grid.Row="1" Grid.Column="1"
PasswordChar="●"
Margin="0,0,0,16"/>
<Button Grid.Row="2" Grid.Column="0" Grid.ColumnSpan="2"
Content="Sign In"
HorizontalAlignment="Right"/>
</Grid>
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 Changed · +8 lines d6d6e67ba340
- 2mo ago First seen · 289 lines · 34 tokens per session scan A fb549dba4bc1
avalonia-layout is a skill published in the GitHub repository linuxdevel/Avalonia-skills (48 stars, last pushed 10d ago), licensed MIT. It adds 34 tokens to every session and 2,363 once invoked, about $0.0001 per session on Opus 5.5. 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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