Chart Skill

A table of numbers hides the story; a chart shows it. This skill turns data into a clean, correctly-typed chart — a trend as a line, a comparison as bars, a composition as a pie/doughnut — emitted as a small JSON spec inside a ```chart block that renders live in the playground (and exports as PNG).

Required Inputs

Ask for these only if they aren't already provided:

• The data — the numbers, with their labels/categories (paste a table, list, or metrics).
• What you want to show — a trend over time, a comparison between things, or parts of a whole. This decides the chart type.
• Series — one metric or several (e.g. revenue and churn over the same months).
• Title (optional) — what the chart is about.

If the data implies the wrong chart type for the goal, pick the right type and say why.

Output Format