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-winforms-chartsgit 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-winforms-charts)<a href="https://agentmods.dev/skills/devexpress/agent-skills/devexpress-winforms-charts"><img src="https://agentmods.dev/badge/skills/devexpress/agent-skills/devexpress-winforms-charts/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-winforms-charts"><img src="https://agentmods.dev/badge/skills/devexpress/agent-skills/devexpress-winforms-charts.svg" alt="Reviewed on agentmods" width="80" height="20"></a>- NVIDIA SkillSpector pass
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 | $0.00219 | $0.05351 |
| Opus 5 | $0.00110 | $0.02676 |
| Sonnet 5 | $0.00044 | $0.01070 |
| Haiku 4.5 | $0.00022 | $0.00535 |
Grade A, and why
devexpress-winforms-charts 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 — 263 lines — stays where its author put it; the contents beside it link to each section on GitHub.
DevExpress WinForms Chart Control
DevExpress.XtraCharts.ChartControl is a 2D and 3D data-visualization component that supports 50+ series view types (bar, line, area, pie, financial, radar, polar, funnel, gantt, swift plot for huge datasets, etc.). The architecture is a four-level hierarchy: a ChartControl hosts a single Diagram of a specific type (XYDiagram, SimpleDiagram, GanttDiagram, RadarDiagram, PolarDiagram, SwiftPlotDiagram, or their 3D counterparts), the diagram contains a collection of Series, and each Series has a View (BarSeriesView, LineSeriesView, PieSeriesView, …) that determines its appearance. The diagram type is implicitly chosen by the first added series' view — adding a Series of ViewType.Pie produces a SimpleDiagram automatically; adding ViewType.Bar produces an XYDiagram.
Every chart concept — series, axis, label, legend, tooltip, crosshair, selection — exposes a consistent property model and a CustomDraw* event for cases the property model cannot cover. The same Series API works for bound and unbound modes: assign DataSource + ArgumentDataMember + ValueDataMembers for data binding, or Points.Add(new SeriesPoint(...)) for inline values.
When to Use This Skill
- Adding a chart to a WinForms app — pick a series view, bind data, configure axes.
- Choosing the right series view for the data shape (bar comparison vs trend line vs pie share vs financial OHLC vs radar profile vs gantt timeline).
- Configuring axes (primary + secondary; Numerical / DateTime / TimeSpan / Qualitative scale types) and their ranges.
- Formatting axis titles and labels (
TextPatternwith{A}/{V}/{VP}placeholders + .NET format specifiers). - Aggregating large data sets on a DateTime axis via
ScaleMode = AutomaticandAggregateFunction. - Configuring the legend — single or multiple legends, alignment, layout, per-series legend item text via
LegendTextPattern. - Enabling tooltips and the crosshair cursor; formatting their content; understanding when each one is the default.
- Enabling selection (Single, Multiple, or Extended) and choosing whether the entire series, a single point, or all points with the same argument get selected.
What ships with it
11 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.cs 4.7 KB
- references/aggregation-and-summary.md 10 KB
- references/axes.md 12 KB
- references/axis-titles-and-labels.md 9.5 KB
- references/data-binding.md 11 KB
- references/getting-started-dotnet-fw.md 3.9 KB
- references/getting-started.md 7.2 KB
- references/legend.md 9.2 KB
- references/selection.md 11 KB
- references/series-and-diagrams.md 11 KB
- references/tooltips-and-crosshair.md 11 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.
- 11d ago First seen · 263 lines · 219 tokens per session scan A 6bf7bf22db87
devexpress-winforms-charts is a skill published in the GitHub repository DevExpress/agent-skills (52 stars, last pushed 24d ago), licensed MIT. It adds 219 tokens to every session and 5,351 once invoked, about $0.0011 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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