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 DevExpress/agent-skills --skill devexpress-wpf-tree-listgit clone --depth 1 https://github.com/DevExpress/agent-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/devexpress/agent-skills/devexpress-wpf-tree-list)<a href="https://agentmods.dev/skills/devexpress/agent-skills/devexpress-wpf-tree-list"><img src="https://agentmods.dev/badge/skills/devexpress/agent-skills/devexpress-wpf-tree-list/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/devexpress/agent-skills/devexpress-wpf-tree-list"><img src="https://agentmods.dev/badge/skills/devexpress/agent-skills/devexpress-wpf-tree-list.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 | $0.00212 | $0.06367 |
| Opus 5.5 | $0.00085 | $0.02547 |
| Sonnet 5.5 | $0.00042 | $0.01273 |
| Haiku 4.5 | $0.00021 | $0.00637 |
Grade A, and why
devexpress-wpf-tree-list 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 3d 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 — 419 lines — stays where its author put it; the contents beside it link to each section on GitHub.
DevExpress WPF TreeList (TreeListControl)
The DevExpress WPF TreeList is a data-aware control for displaying and editing hierarchical data as a tree. The primary class is DevExpress.Xpf.Grid.TreeListControl, which uses DevExpress.Xpf.Grid.TreeListView as its View. TreeListControl supports three data binding strategies — self-referential (flat data with Key/Parent fields), hierarchical (nested child collections or templates), and unbound mode (programmatic TreeListNode tree). It shares the same feature surface as GridControl: sorting, filtering, summaries, editing, conditional formatting, drag-and-drop, and printing/export.
TreeListControl vs. TreeListView:
TreeListControlis a standalone control;TreeListViewis its View class. The sameTreeListViewclass can also act as a View of the regularGridControl(in which case the parent isGridControl, notTreeListControl). If your data is hierarchical and you need a tree-only experience, useTreeListControl. If your data is sometimes tabular and sometimes hierarchical, considerGridControlwith aTreeListView.
When to Use This Skill
Use this skill when you need to:
- Display org charts, file/folder trees, project hierarchies, BOM, or any parent-child data
- Bind to flat data with Key/Parent fields (employees with
ReportsTo, categories withParentId) - Bind to nested object collections (each item has a
Childrenproperty) - Build a tree programmatically without a data source (unbound mode) using
TreeListNode - Define columns explicitly with
TreeListColumnand configure in-place editors - Allow users to expand/collapse, select multiple nodes or cells, edit values, sort, filter, search
- Apply conditional formatting, summaries, drag-and-drop, or printing/export to a tree
- Migrate from standard WPF
TreeViewto a richer, data-aware tree
Prerequisites & Installation
NuGet Packages
| Package | Purpose |
|---|---|
DevExpress.Wpf.Grid |
Designer-mode install — adds toolbox items and Quick Actions support |
DevExpress.Wpf.Grid.Core |
Code-first install — minimal runtime assemblies for TreeListControl, TreeListView, TreeListColumn, TreeListNode |
DevExpress.Wpf.Printing |
Required for View.ShowPrintPreview() and export to XLSX/PDF/HTML |
What ships with it
15 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.
- examples/quickstart-mainview.xaml 1.5 KB
- examples/quickstart-mainviewmodel.cs 2.9 KB
- examples/quickstart.cs 4.2 KB
- examples/quickstart.xaml 2.2 KB
- references/advanced-features.md 5.0 KB
- references/data-binding.md 9.0 KB
- references/drag-and-drop.md 11 KB
- references/editing.md 6.9 KB
- references/end-user-features.md 4.2 KB
- references/focus-and-selection.md 8.3 KB
- references/getting-started-dotnet-fw.md 3.1 KB
- references/getting-started.md 5.5 KB
- references/nodes.md 15 KB
- references/save-restore-layout.md 8.4 KB
- references/validation.md 8.8 KB
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.
- 3d ago First seen · 419 lines · 212 tokens per session scan A 15bf870ce910
devexpress-wpf-tree-list is a skill published in the GitHub repository DevExpress/agent-skills (66 stars, last pushed 4d ago), licensed MIT. It adds 212 tokens to every session and 6,367 once invoked, about $0.0008 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 2026-10-20.
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../../../agents/personas/TEMPLATE.md.
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