description: a recipe card

sections:
  - header: { pattern: ".+" }
    description: every recipe needs a non-empty title
    blocks:
      - type: paragraph
        text: { pattern: '^(By|From) .+$' }
        description: every recipe needs a byline starting with 'By' or 'From'
      - type: paragraph
        description: every recipe needs a short description

    sections:
      - header: { const: Ingredients }
        description: every recipe needs an ingredient list
        maxContains: 1
        blocks:
          - type: bullet-list
            minItems: 1
        additionalBlocks: false

      - header: { const: Instructions }
        description: numbered steps, not a bullet list
        maxContains: 1
        blocks:
          - type: ordered-list
            minItems: 1
        additionalBlocks: false

additionalSections: true