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 agentmods add skills/managedcode/dotnet-skills/wpfnpx skills add managedcode/dotnet-skills --skill wpfgit clone --depth 1 https://github.com/managedcode/dotnet-skillsWhat 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 | $0.00122 | $0.02969 |
| Opus 5 | $0.00061 | $0.01484 |
| Sonnet 5 | $0.00024 | $0.00594 |
| Haiku 4.5 | $0.00012 | $0.00297 |
Grade A, and why
wpf 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 yesterday.
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 — 413 lines — stays where its author put it; the contents beside it link to each section on GitHub.
WPF
Trigger On
- working on WPF UI, MVVM, binding, commands, or desktop modernization
- migrating WPF from .NET Framework to .NET
- integrating newer Windows capabilities into a WPF app
- implementing data binding, styles, templates, or control customization
Documentation
References
- patterns.md - MVVM patterns, binding patterns, command patterns, and reusable architectural approaches
- anti-patterns.md - Common WPF mistakes and how to avoid them
Workflow
- Confirm Windows-only scope — WPF is Windows-only even when the wider .NET stack is cross-platform
- Apply MVVM pattern — keep views dumb, logic in ViewModels, use commands
- Manage data binding explicitly — choose correct binding modes, validate at runtime
- Use styles and templates deliberately — keep UI composable, avoid page-specific hacks
- Handle threading correctly — use Dispatcher for UI updates, async/await for long operations
- Validate both designer and runtime — XAML composition failures often surface only at runtime
Current Upstream Notes
- The August 2026 WPF overview reiterates WPF as a Windows-only desktop UI stack with XAML, data binding, styling, templates, resources, and vector/rich-media composition. Keep WPF-specific guidance separate from WinUI or MAUI unless the task is explicitly a migration or comparison.
- WPF exists on both .NET Framework and modern .NET. For modernization work, inventory compatibility constraints and use the current desktop migration guidance before moving project files, interop, deployment, or XAML resource dictionaries.
What ships with it
3 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.
- yesterday First seen · 413 lines · 122 tokens per session scan A 45eb44a3182f
wpf is a skill published in the GitHub repository managedcode/dotnet-skills (477 stars, last pushed 2d ago), licensed MIT. It adds 122 tokens to every session and 2,969 once invoked, about $0.0006 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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