stack/docs/reports/native-kanban-sot/canon-final-rereview-go.md

VERDICT: GO

Native Kanban/SOT canon independent re-review 2

Independent read-only re-review of the complete updated staged canon. Prior proposal-audit blocker is closed; no KCR-001–016 regression or new blocker found.

Prior blocker closure

• contracts/kanban-schema.v1.ts:836-837 declares the required unique task_events(workspace_id,id) key before proposal declaration.
• contracts/kanban-schema.v1.ts:885-894 adds both composite proposal audit FKs—submission and accepted-command event—to that exact workspace-aware key with RESTRICT.
• Declaration/migration order is executable and explicit in SHARED-CONTRACT.md:79-91: events/key first, proposal table second, both FKs third/fourth, then command enablement. This avoids forward-reference/circular-DDL ambiguity.
• Submission/acceptance semantics are frozen in SHARED-CONTRACT.md:87-91: preallocate proposal ID; create exact change_proposal.submitted event and proposal in one transaction; on acceptance lock proposal/target, execute the normal command, and bind only a same-workspace/target event with submission causation and payload.changeProposalId equal to the locked proposal.
• Required missing, foreign-workspace, unrelated-proposal, unrelated-target, and unrelated-command negatives are explicit in REQUIREMENTS.md REQ-SOT-004 and SHARED-CONTRACT.md:121; KBN-100/110/140 own migration, service, and integration evidence.

KCR closure matrix

KCR	Status
001 health/proof	CLOSED
002 error discrimination	CLOSED
003 approval/assignment binding	CLOSED
004 monotonic fencing/composites	CLOSED
005 tenant-safe relations	CLOSED
006 outage proposal persistence/commands/audit binding	CLOSED
007 dependency/API freeze sequencing	CLOSED
008 concrete N-1 map	CLOSED
009 dependency uniqueness	CLOSED
010 project congruence	CLOSED
011 immutable audit retention	CLOSED
012 retry/quarantine/vocabulary	CLOSED
013 archive/tags target semantics	CLOSED
014 recovery validator/owner slice	CLOSED
015 pure Coordinator split	CLOSED
016 health code/state pairing	CLOSED

Fixed invariants remain consistent: PostgreSQL is sole writable SOT; writes require transaction-local proof and fail closed; exports never import sources; notes are attributable proposals only; Coordinator has no scope/gate/certify/merge authority; Certifier has no merge authority.

Reproducible validation evidence

Executed read-only with current-stack config/toolchain /src/mosaic-mono-v1:

./node_modules/.bin/prettier --config /src/mosaic-mono-v1/.prettierrc --check <all 9 publication artifacts>
PASS: All matched files use Prettier code style.

strict TypeScript --noEmit --strict --skipLibCheck --target ES2022 --module NodeNext --moduleResolution NodeNext <four contract copies with current Drizzle node_modules resolution>
PASS

cascade/TODO/TBD/stale-hold grep plus composite-FK/semantic-marker invariant checks
PASS

The TypeScript check used a disposable copy under /home/hermes/agent-work solely to provide external-file NodeNext dependency resolution; the reviewed staging artifacts were not modified.

Residual findings

None blocking. Implementation must execute the frozen KBN-100/KBN-110/KBN-140 proposal-event-chain tests and SecReview evidence before feature release, as already required by the canon.

No artifact source repository, branch, PR, or provider state was modified.