# HSG Publication Architecture

The Human Stewardship Guidelines (HSG) are a constitutional publication —
not implementation documentation. They exist to teach people how to build
systems that care for human understanding, and must remain valuable even
if every current PosterityOS product disappears.

## Constitutional layers

| Layer | Question | Location |
| --- | --- | --- |
| PosterityOS Constitution | WHAT the system is | `src/platform/constitution/` (existing) |
| Human Stewardship Guidelines | HOW responsible people build it | `src/platform/stewardship/` |
| Stewardship Canon | WHY it exists | `src/platform/stewardship/library/canon.ts` |

These three are distinct but inseparable. Each is append-only.

## Publication object

`HSG_PUBLICATION` (`src/platform/stewardship/library/publication.ts`)
carries the metadata a future reader needs to understand the work:
founding belief, purpose, audience, applicable domains, relationships to
Constitution and Canon, and the five Design Ethic questions.

## Library

`HumanStewardshipLibrary` composes:

- Publication metadata
- Three Books (Foundations, Human Experience, Institutions)
- Pattern Language index
- Stewardship Canon
- Amendment Log
- Scholar Corpus
- Edition History

It does NOT own the volume registry — the registry
(`src/platform/stewardship/hsg-registry.ts`) remains canonical for
volumes, doctrines, and principles. The Library references volumes by
id through Books.

## Purity

All library modules are pure data + pure derivations. No I/O, no React,
no product coupling. The Library must remain portable across future
technologies.