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 christian289/dotnet-with-claudecode --skill using-wpf-clipboardgit clone --depth 1 https://github.com/christian289/dotnet-with-claudecodeWrote 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/christian289/dotnet-with-claudecode/using-wpf-clipboard)<a href="https://agentmods.dev/skills/christian289/dotnet-with-claudecode/using-wpf-clipboard"><img src="https://agentmods.dev/badge/skills/christian289/dotnet-with-claudecode/using-wpf-clipboard/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/christian289/dotnet-with-claudecode/using-wpf-clipboard"><img src="https://agentmods.dev/badge/skills/christian289/dotnet-with-claudecode/using-wpf-clipboard.svg" alt="Reviewed on agentmods" width="80" height="20"></a>- NVIDIA SkillSpector warn
SkillSpector: 5 findings, up to medium
These are SkillSpector’s own severities. On a checked sample its high-severity flags on skills were ~96% false positives — a documented command, a public API, a “never do X” rule — so we show them as a caution to read, not a verdict. Why →
- medium Excessive Agency · line 4 Skill selects an external model or provider that may use a different account or billing plan than the operator expects. Undisclosed model switches can cause unexpected cost or quota consumption.Fix: Remove the model/provider override or disclose it prominently and require explicit operator approval before invoking an external coding CLI or billed model.
- medium Rogue Agent · line 24 Skill establishes unauthorized persistence across sessions via cron jobs, startup scripts, or state files. Session persistence allows an attacker to maintain access beyond the current interaction.Fix: Remove any persistence mechanisms (cron jobs, startup scripts, state files). Skills should not maintain state across sessions without explicit user consent.
- medium Rogue Agent · line 132 Skill establishes unauthorized persistence across sessions via cron jobs, startup scripts, or state files. Session persistence allows an attacker to maintain access beyond the current interaction.Fix: Remove any persistence mechanisms (cron jobs, startup scripts, state files). Skills should not maintain state across sessions without explicit user consent.
- medium Rogue Agent · line 135 Skill establishes unauthorized persistence across sessions via cron jobs, startup scripts, or state files. Session persistence allows an attacker to maintain access beyond the current interaction.Fix: Remove any persistence mechanisms (cron jobs, startup scripts, state files). Skills should not maintain state across sessions without explicit user consent.
- medium Rogue Agent · line 137 Skill establishes unauthorized persistence across sessions via cron jobs, startup scripts, or state files. Session persistence allows an attacker to maintain access beyond the current interaction.Fix: Remove any persistence mechanisms (cron jobs, startup scripts, state files). Skills should not maintain state across sessions without explicit user consent.
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 | $0.00033 | $0.01695 |
| Opus 5 | $0.00016 | $0.00847 |
| Sonnet 5 | $0.00007 | $0.00339 |
| Haiku 4.5 | $0.00003 | $0.00169 |
Grade A, and why
using-wpf-clipboard 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 11d 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 — 313 lines — stays where its author put it; the contents beside it link to each section on GitHub.
WPF Clipboard Patterns
Implementing copy/paste functionality using the Windows clipboard.
Advanced Patterns: See ADVANCED.md for clipboard monitoring and error handling.
1. Clipboard Overview
Clipboard Operations
├── Text Operations
│ ├── SetText / GetText
│ └── Unicode, RTF, HTML support
├── Image Operations
│ ├── SetImage / GetImage
│ └── BitmapSource support
├── File Operations
│ ├── SetFileDropList / GetFileDropList
│ └── File path collection
└── Custom Data
├── SetData / GetData
└── DataObject with multiple formats
2. Text Operations
2.1 Basic Text Copy/Paste
using System.Windows;
// Copy text to clipboard
Clipboard.SetText("Hello, World!");
// Paste text from clipboard
if (Clipboard.ContainsText())
{
var text = Clipboard.GetText();
// Use text
}
2.2 Text Formats
// Set text with specific format
Clipboard.SetText("Hello", TextDataFormat.UnicodeText);
Clipboard.SetText("<b>Hello</b>", TextDataFormat.Html);
Clipboard.SetText(@"{\rtf1 Hello}", TextDataFormat.Rtf);
// Get text with specific format
if (Clipboard.ContainsText(TextDataFormat.Html))
{
var html = Clipboard.GetText(TextDataFormat.Html);
}
TextDataFormat Options:
| Value | Description |
|---|---|
| Text | ANSI text |
| UnicodeText | Unicode text (default) |
| Rtf | Rich Text Format |
| Html | HTML format |
| CommaSeparatedValue | CSV format |
3. Image Operations
3.1 Copy/Paste Images
using System.Windows;
using System.Windows.Media.Imaging;
// Copy image to clipboard
var bitmap = new BitmapImage(new Uri("pack://application:,,,/Images/logo.png"));
Clipboard.SetImage(bitmap);
// Paste image from clipboard
if (Clipboard.ContainsImage())
{
var image = Clipboard.GetImage();
MyImage.Source = image;
}
3.2 Copy UI Element as Image
using System.Windows.Media;
using System.Windows.Media.Imaging;
public static void CopyElementAsImage(FrameworkElement element)
{
var width = (int)element.ActualWidth;
var height = (int)element.ActualHeight;
var renderBitmap = new RenderTargetBitmap(
width, height, 96, 96, PixelFormats.Pbgra32);
renderBitmap.Render(element);
Clipboard.SetImage(renderBitmap);
}
What ships with it
1 file 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.
- 11d ago First seen · 313 lines · 33 tokens per session scan A bd885fa6d055
using-wpf-clipboard is a skill published in the GitHub repository christian289/dotnet-with-claudecode (41 stars, last pushed 1mo ago), licensed MIT. It adds 33 tokens to every session and 1,695 once invoked, about $0.0002 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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