The theme can render docs navigation from published WordPress page hierarchy. When that content is not available yet, it falls back to the committed pilot fixture at theme/wp-docs/assets/docs-index.json.

Search/navigation entries use this shape:

{
  "id": "stable page id or slug",
  "title": "display title",
  "url": "runtime URL or committed content path",
  "section": "top-level docs section label",
  "sectionOrder": 10,
  "order": 10,
  "parent": "optional parent id for nested IA",
  "excerpt": "short result summary",
  "headings": ["visible heading"],
  "body": "plain-text searchable content"
}

Ordering is predictable: sectionOrder, then order, then title. The shell integration points are [data-wp-docs-shell], [data-wp-docs-sidebar], [data-wp-docs-content], [data-wp-docs-toc], and [data-wp-docs-search].