$schema: https://document-schema.org/draft/2026-06/schema
description: >-
  A guide opens with exactly one top-level heading; the README's documentation
  index (insitu/models/documentation.sql) uses it as the guide's title.
sections:
  - header:
      pattern: ^\S
    maxContains: 1
additionalSections: false
additionalBlocks: false