Design a Chart From a User Goal

Use this scenario loop: trigger → inspect → decide → build → verify. Do not begin with a chart type, even when the request names one.

Setup

Turn the request into this brief before writing chart code:

interface ChartBrief {
  question: string
  decision: string
  observation: string
  metric: { value: string; unit: string; denominator?: string }
  comparison:
    'time' | 'category' | 'distribution' | 'relationship' | 'composition'
  evidence: readonly string[]
}