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-mvvmgit 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-mvvm)<a href="https://agentmods.dev/skills/devexpress/agent-skills/devexpress-wpf-mvvm"><img src="https://agentmods.dev/badge/skills/devexpress/agent-skills/devexpress-wpf-mvvm/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-mvvm"><img src="https://agentmods.dev/badge/skills/devexpress/agent-skills/devexpress-wpf-mvvm.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 | $0.05003 |
| Opus 5.5 | $0.00085 | $0.02001 |
| Sonnet 5.5 | $0.00042 | $0.01001 |
| Haiku 4.5 | $0.00021 | $0.00500 |
Grade A, and why
devexpress-wpf-mvvm 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 — 407 lines — stays where its author put it; the contents beside it link to each section on GitHub.
DevExpress WPF MVVM Framework
DevExpress.Mvvm is a full-featured MVVM framework for WPF — view-model base classes, code generators (compile-time and runtime), commands (sync and async), 25+ predefined services for typical UI tasks (message boxes, dialogs, document management, dispatcher, navigation, splash screens), behaviors that replace code-behind, and three view-model-communication mechanisms (parameter passing, parent-child relationships, messenger).
This skill covers picking the right view-model strategy, defining bindable properties and commands, calling services from view models, attaching behaviors, and routing data between view models.
When to Use This Skill
Use this skill when you need to:
- Pick a view-model strategy for a new or existing project
- Generate boilerplate code (properties, INotifyPropertyChanged, commands) at compile time
- Wire commands (sync
DelegateCommandor asyncAsyncCommand) to methods - Show message boxes / dialogs / file pickers / notifications from a view model
- Replace code-behind event handlers with behaviors (
EventToCommand,KeyToCommand, ...) - Pass initial data to a child view model (
ISupportParameter) - Access services registered on the parent view's view model from a child (
ISupportParentViewModel) - Broadcast notifications across loosely coupled view models (
Messenger)
Prerequisites & Installation
NuGet Packages
| Package | Provides |
|---|---|
DevExpress.Wpf.Core |
ViewModelBase, BindableBase, Messenger, all predefined services (IMessageBoxService, IDialogService, etc.), behaviors, dxmvvm: namespace |
DevExpress.Mvvm |
Standalone MVVM library (the same types) — use when not bringing the rest of DX WPF |
DevExpress.Mvvm.CodeGenerators |
Compile-time source generator for [GenerateViewModel] |
For a typical DevExpress WPF app, install DevExpress.Wpf.Core only — it brings everything. For a pure-MVVM library that doesn't reference UI controls, install DevExpress.Mvvm standalone.
What ships with it
8 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.
- 3d ago First seen · 407 lines · 212 tokens per session scan A 746dd2254ae4
devexpress-wpf-mvvm 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 5,003 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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