# DO-011 — Local Ratification of Section 39 Artefact Topology

**Date:** 2026-06-29

## Decision
Oscar locally ratifies section 39. Adds 3 cross-cutting models (Tag, Link, Version) and 3 IDB stores (DB v4 → v5).

## Effect
- tags, links, versions stores
- TopologyContext wraps the app
- Cross-artefact features available