Build JavaFX charts, dashboards, gauges, and high-volume visualizations with the right level of tooling.
SkillScore91Maintained
Automatic
◆Frontend / UI pack
Last verified 8/4/2026
What it changes
Passed 20 of 22 test cases with the skill, and 17 of 22 without it.
Without skill77%
With skill91%
Checks it passed that the model alone missed
Recommends escalating to Orson Charts for 3D scientific plotting.
Recommends configuring shared formatting semantics across the entire dashboard.
Recommends escalating to an ecosystem charting library like ChartFx when built-in charts reach scale limits.
3 fixed17 passed either way2 still failing0 broke
Pass-rate lift
+14 pp
Tokens
-2%
Agent turns
0%
Response time
-23%
Model gemini-3.6-flashMeasured 8/4/2026v120 of 22 cases passed with skill
Tokens, turns and time describe resource use, not a dollar price.
See it in action
One of 3 test cases the skill fixed. Same model, same prompt, with and without the skill.
1 of 3
Prompt
I am building a JavaFX desktop view to display rapid real-time performance metrics coming in several times per second. Could you provide a Java code example and guidance on how to organize the chart components and manage the incoming data updates efficiently so the UI remains smooth?
What was checked, without and with the skill
Checked
Without skill
With skill
Recommends throttling high-frequency data streams before UI chart updates.
Passed
Passed
Recommends escalating to an ecosystem charting library like ChartFx when built-in charts reach scale limits.
Missed
Passed
case-01 · gemini-3.6-flash · 8/4/2026 · answers are capped and redacted
What's inside
The instructions your model reads when the skill loads.
SKILL.md51 linessingle file
JavaFX Data Visualization and Dashboards
Use this skill when the UI needs built-in charts, KPI dashboards, scientific plots, or high-density
status panels. This skill owns chart selection, including when built-in JavaFX charts are enough and
when to escalate to ecosystem libraries.
Example
import javafx.collections.FXCollections;
import javafx.scene.chart.LineChart;
import javafx.scene.chart.NumberAxis;
import javafx.scene.chart.XYChart;
import javafx.scene.layout.BorderPane;
public class MetricsDashboard extends BorderPane {
public MetricsDashboard() {
var xAxis = new NumberAxis();
var yAxis = new NumberAxis();
var chart = new LineChart<>(xAxis, yAxis);
chart.setLegendVisible(false);
var series = new XYChart.Series<Number, Number>();
series.setData(FXCollections.observableArrayList(
new XYChart.Data<>(0, 12),
new XYChart.Data<>(1, 18),
new XYChart.Data<>(2, 15),
new XYChart.Data<>(3, 24)
));
chart.getData().add(series);
setCenter(chart);
}
}
Setup notes
Start with built-in JavaFX Chart controls for straightforward business graphs.