Reworks federation from binary rules into the plane/ladder/posture form from
ADR-008 (Four Planes), reusing its vocabulary rather than adding a second
maturity language to the canon.
Four planes: Namespace, Autonomy, Reconciliation, Substrate, each with a
ladder. Draft-1's 'records fork, effects do not' becomes the S ladder.
Posture is declared in the repo per ADR-010 decision 4; the ecosystem's own
posture is recorded honestly as N1 U1 R1 S1.
Key additions: conformance is accuracy not altitude; an anti-overclaim rule
stating that namespace qualification is N-plane movement only and does not
make anything federation-capable, with a commercial clause for
instance-per-client claims; the reconciliation tier is now DERIVED from
participants' postures (any S3 entails T3), so rejoining cost is computable
before a fork exists rather than discovered during reconciliation; evidence
definitions per level; and guard via rmgr conform.
Co-Authored-By: Claude Opus 5 <noreply@anthropic.com>
ADR-008 and ADR-009 were concurrently allocated by two authors on
2026-08-17. adr-008-multi-tenancy-model.md (Four Planes) has earlier
provenance and keeps 008; 009 is left free for that lane. Hub authority
becomes ADR-010, federated namespaces ADR-011. Cross-references in ADR-007
updated.
A live demonstration of ADR-007 decision 1's own subject: sequential
allocation with concurrent writers. ADR numbering is not covered by that
decision, which governs PREFIX-WP-NNNN only — gap to close.
Co-Authored-By: Claude Opus 5 <noreply@anthropic.com>
2026-08-17 13:04:04 +02:00
Renamed from canon/architecture/adr-009-federated-namespaces-and-reconciliation-limits.md (Browse further)
