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 data-displaygit 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/data-display)<a href="https://agentmods.dev/skills/linuxdevel/avalonia-skills/data-display"><img src="https://agentmods.dev/badge/skills/linuxdevel/avalonia-skills/data-display/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/data-display"><img src="https://agentmods.dev/badge/skills/linuxdevel/avalonia-skills/data-display.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 | $0.00000 | $0.04348 |
| Opus 5.5 | $0.00000 | $0.01739 |
| Sonnet 5.5 | $0.00000 | $0.00870 |
| Haiku 4.5 | $0.00000 | $0.00435 |
Grade A, and why
avalonia-controls-data-display 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 — 369 lines — stays where its author put it; the contents beside it link to each section on GitHub.
Avalonia Data Display Controls
Overview
Data display controls render read-only or selectable information. Pick by need:
| Need | Control | Availability |
|---|---|---|
| Simple repeated items, no selection | ItemsControl |
all |
| Selectable list, custom item layout | ListBox |
all |
| Read-only table: columns over a collection, no editing (virtualized, row/cell recycling) | TableView |
12.1+ (core Avalonia package) |
| Editable/sortable/grouped grid | DataGrid |
Avalonia.Controls.DataGrid package, MIT. Maintenance mode (bug fixes only) since 12.1 — fine for existing apps and 11.x/12.0, don't pick for new read-only grids on 12.1+ |
| Tree + table, advanced editing, hierarchical grid | TreeDataGrid |
Avalonia.Controls.TreeDataGrid package. Commercial: requires an Avalonia Accelerate/Pro license (since 11.2); versions independently (12.x line targets Avalonia 12) |
| Hierarchy, single column | TreeView |
all |
There is no
MarkdownViewerin Avalonia core. Use the communityMarkdown.Avaloniapackage (orLiveMarkdown.Avalonia).
TextBlock
| Property | Type | Notes |
|---|---|---|
Text |
string |
Plain text content |
FontSize |
double |
In device-independent pixels |
FontWeight |
FontWeight |
Normal, Bold, SemiBold, etc. |
FontStyle |
FontStyle |
Normal, Italic, Oblique |
TextWrapping |
TextWrapping |
NoWrap, Wrap, WrapWithOverflow |
TextTrimming |
TextTrimming |
None, CharacterEllipsis, WordEllipsis |
TextDecorations |
TextDecorationCollection |
Underline, Strikethrough |
LineHeight |
double |
Line spacing |
MaxLines |
int |
Clamps number of displayed lines |
Inlines |
InlineCollection |
Mixed-format inline content |
<!-- Basic -->
<TextBlock Text="{Binding Title}" FontSize="18" FontWeight="SemiBold"/>
<!-- Trimming with ellipsis -->
<TextBlock Text="{Binding Description}" TextTrimming="CharacterEllipsis" MaxWidth="300"/>
<!-- Inline formatting -->
<TextBlock>
<Run FontWeight="Bold">Important:</Run>
<Run> This is </Run>
<Run Foreground="Red" FontStyle="Italic">critical</Run>
<LineBreak/>
<Run Text="{Binding Detail}"/>
</TextBlock>
<!-- Underline + strikethrough -->
<TextBlock Text="Strike me" TextDecorations="Strikethrough"/>
<TextBlock Text="Link-style" TextDecorations="Underline" Cursor="Hand"/>
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 · +71 lines c64fe38a94e2
- 2mo ago First seen · 298 lines · 0 tokens per session scan A 178bb5780bfb
avalonia-controls-data-display is a skill published in the GitHub repository linuxdevel/Avalonia-skills (48 stars, last pushed 10d ago), licensed MIT. It costs nothing until one of its globs matches a file; then it loads 4,348 tokens. 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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