stack/docs/scratchpads/771-kbn101-db-role-split.md

# Scratchpad — KBN-101 DB runtime/migration role split (#771)

- **Branch:** `docs/771-kbn101-db-role-split`
- **Base:** `main` `e9c4aa3`
- **Scope:** planning/documentation only; authorized files are PRD, Native Kanban task/shared/index docs, sitemap, this scratchpad, and the new KBN-101 contract.
- **Explicit exclusions:** source/runtime/config/deployment/secret/migration/compose/CI/lock/package/KBN-100 branch edits; no production mutation.

## Objective

Freeze an implementation-ready PostgreSQL role/connection split so the Gateway uses a non-owner runtime identity and only a dedicated migration phase uses an owner/migrator identity. Make real deployed-role certification—not synthetic role tests—a serial prerequisite of KBN-100 and KBN-105.

## Intake and current-state evidence

- Mission MVP is active; W3 Native Kanban/SOT is planning-complete. The task state shows KBN-010 as the predecessor and KBN-100 as the current schema slice.
- Current branch started at `e9c4aa3`; `.mosaic/orchestrator/{mission.json,session.lock}` were already runtime-modified and remain untouched.
- `packages/db/src/client.ts`, `migrate.ts`, and `drizzle.config.ts` resolve one `DATABASE_URL` (with default fallback). `packages/storage/src/adapters/postgres.ts` calls `runMigrations(this.url)`.
- `apps/gateway/src/database/database.module.ts` calls `storageAdapter.migrate()` at startup for PostgreSQL; this is the owner-runtime defect to remove in KBN-101 implementation.
- `packages/config/src/mosaic-config.ts`, installer wizard, local/federated compose, Portainer test stack, and `.woodpecker/ci.yml` currently expose one URL. PGlite has an existing explicit local migration path.
- Current KBN contract requires immutable events/checkpoints/artifacts/evidence, `RESTRICT`, and KBN-100 generated Drizzle consistency. It did not establish a deployable runtime identity split.

## Frozen decisions

1. `DATABASE_URL` is the non-owner runtime URL; `DATABASE_MIGRATION_URL` is migration-only. Both are required in their respective PostgreSQL phases; PGlite is the explicit local exception; migration never falls back to runtime/default/config URL.
2. PostgreSQL Gateway runtime never auto-runs migration/DDL. Dedicated migrator uses `pg_try_advisory_lock(hashtext('mosaic-schema-migration-v1'))`; replicas only check exact ordered Drizzle-ledger readiness and fail closed.
3. Roles are non-login `mosaic_platform_database_owner`, non-login `mosaic_schema_owner`, login/noinherit `mosaic_migrator`, non-login `mosaic_runtime_capability`, and login/inherit `mosaic_runtime`. Runtime inherits only its capability role with SET/ADMIN denied, has no owner/migrator membership, no unsafe attributes/ownership/DDL authority, and an explicit trusted search path.
4. Runtime gets mutable DML only as needed, but INSERT/SELECT only on `task_events`, `artifacts`, `task_checkpoints`, `task_checkpoint_artifacts`, and `approval_decision_artifacts`. KBN-100 still enforces RESTRICT/no-cascade.
5. Startup verifies effective role/ownership/attributes/inherited capability/TEMP/function-execute/ledger grants/search path/immutable denials/schema fingerprint without DSN exposure. It also requires authenticated CA/hostname-verified TLS. Stable sanitized errors and redaction rules are required.
6. N-1 retains single runtime URL only as a non-certified compatibility release; staged role provisioning/migration/runtime deployment then enforces the split. Rollback never injects migration URL into Gateway.
7. Vault target paths, rotation, deployment injection, CI, installer, compose, Portainer, and observability are separate one-card/one-PR handoffs. The migration-only file manifest includes `packages/db/drizzle.config.ts`; KBN-101 repairs the known PostgreSQL runner/journal ordering defect and proves a clean database applies every hash once before its foundation certificate. No application migration creates roles/passwords or hardcodes credentials.
8. KBN-101 foundation merges/certifies first. KBN-100 then rebases, restores Drizzle declaration/snapshot/journal consistency, and bounds procedural immutable-table grant/trigger/backfill work to its own slice. Because those immutable relations do not exist until KBN-100, KBN-101’s real deployed-role immutable-operation certificate follows KBN-100 and is the serial gate before KBN-105.

## Assumptions

- `standalone` and `federated` are all current PostgreSQL production-like modes; a future PostgreSQL tier inherits this contract unless versioned otherwise.
- Deployment will support a dedicated migration Job/one-shot command. A target that cannot run it cannot receive production/federated KBN certification.
- Canonical Vault target paths require deployment-owner verification before provisioning; the planning document does not claim they already exist.

## Documentation produced

- `docs/PRD.md`: bounded KBN-101 requirements and acceptance criteria.
- `docs/native-kanban-sot/KBN-101-DB-ROLE-SPLIT.md`: normative rc.5 implementation, threat, migration/rollback, evidence, and exact file DAG contract.
- `docs/native-kanban-sot/SHARED-CONTRACT.md`: rc.5 amendment preserving rc.4.
- `docs/native-kanban-sot/TASKS.md`: KBN-101 inserted before and blocks KBN-100; KBN-105 held.
- Native Kanban index and root sitemap links.

## Validation plan

1. Prettier only for changed Markdown.
2. Markdown link target/check checks scoped to modified docs.
3. Strict contract check with `pnpm exec tsc --noEmit -p docs/native-kanban-sot/tsconfig.json` (the frozen TypeScript contracts remain unchanged).
4. Diff allowlist proves only authorized documentation files changed, apart from pre-existing Mosaic runtime state.
5. Independent documentation/security self-review: role escalation, fallback, startup DDL, schema readiness, grants/default privileges, immutable tables, secret leakage, deployment and KBN-100 boundaries.

## Review corrections

Independent Codex review found two blockers and security review found two medium defects; all were remediated in the frozen contract:

1. Split the KBN-101 certificate into a foundation role/schema-boundary certificate (before KBN-100) and real immutable-operation certificate (after KBN-100, before KBN-105). This preserves the requested KBN-100 block without requiring evidence for tables not yet created.
2. Removed the legacy owner-runtime exception. N-1 compatibility preserves variable/config shape only; the KBN-101 runtime refuses owner/migrator identity and current single-URL installs remain on their previous release until role cutover.
3. Introduced `mosaic_platform_database_owner` as a separate non-login platform role. `mosaic_schema_owner` owns application/ledger schemas only, not the database and has no database CREATE/ALTER/extension authority.
4. Replaced blocking `pg_advisory_lock` with `pg_try_advisory_lock` and the deterministic `DATABASE_MIGRATION_LOCKED` failure.
5. Review also flagged active `.mosaic/orchestrator` state. It was pre-existing launcher state and remains unstaged/uncommitted.
6. Second review added `packages/db/drizzle.config.ts` to the migration-only slice, mandates `DATABASE_MIGRATION_URL` with a missing-variable negative, grants runtime only `USAGE` plus `SELECT` on `drizzle.__drizzle_migrations`, and verifies/revokes its ledger writes.
7. Security review added `DATABASE_TLS_CA_CERT_PATH` / `DatabaseTlsConfigDto` with authenticated TLS and hostname/CA verification in production-like modes, explicit database `TEMPORARY` revocation/catalog denial testing, and default-PUBLIC function EXECUTE revocation with SECURITY DEFINER prohibited by default.
8. Final review corrected the runtime login to inherit only its capability role with SET/ADMIN denied, and moved the known hash-complete migration-runner/journal repair into KBN-101-03 before the foundation certificate.
9. Final manifest review added all live runtime DDL paths (`packages/storage/src/tier-detection.ts`, Gateway startup, and `fleet-backlog`) to KBN-101-02, requiring read-only extension probes and no PostgreSQL runtime auto-migration. It also requires KBN-101-04 to stop persisting either DSN into generated `.env`/`mosaic.config.json`, using only Vault/deployment references and injected variables.
10. Provisioning review separated the external privileged platform bootstrap actor from the NOCREATEDB database-owner role and added KBN-101-00. That IaC/bootstrap card owns fresh/existing database role/ownership/grant/Vault transition evidence and is a foundation-certificate dependency.

## Results

- `pnpm exec prettier --check` on every authorized Markdown file: PASS.
- Markdown link and whitespace checker on all seven authorized Markdown files: PASS.
- `pnpm exec tsc --noEmit -p docs/native-kanban-sot/tsconfig.json`: PASS (frozen strict contracts unchanged).
- Codex code review iterated through role inheritability, hash-complete migration ordering, all reachable runtime DDL entrypoints, installer DSN persistence, and platform-bootstrap ownership; each finding was incorporated into the final frozen contract/DAG. The last security review found no new KBN-101 vulnerability; its sole low finding is the pre-existing unstaged Mosaic session-lock metadata, which is excluded from this commit.
- Commit: `82ce3252df38a687c50485f8d048b53ca8db5989` (`docs(#771): freeze database runtime role split`).
- Pre-push queue guard: `ci-queue-wait.sh --purpose push -B main` returned `state=unknown` without failure. The push hook ran repository `pnpm typecheck`, `pnpm lint`, and `pnpm format:check`: PASS.
- Pushed branch `docs/771-kbn101-db-role-split` at the exact commit above; no PR was opened, merged, or closed. `web1:mosaic-100` received the handoff with head, decisions, DAG, and validation.
- Awaiting independent security/Ultron review.

## 2026-07-15 — rc.6 exact-head remediation session

- **Objective / correction:** Replace the prior planning-author handoff and close every finding in the [independent exact-head report](../reports/native-kanban-sot/kbn-101-contract-security-review-82ce325.md) against `da742ca2da4a2ff466916c818fe275c4f7ffd384`. The report is a verbatim durable copy of the task-supplied review artifact; scope remains documentation-only, `.mosaic` is excluded, and source/config/compose/CI/deployment/secrets/migrations remain untouched.
- **Finding 1 — closed DDL control plane:** rc.6 names `mosaic-db-migrator` as the sole application/CI/test PostgreSQL DDL runner, requires `DATABASE_MIGRATION_URL` before connection/DDL, inventories `runMigrations`, Drizzle config/scripts, `db:push`, storage CLI, adapter/Gateway startup, fleet-backlog, extension probes/bootstrap, direct federated integration DDL, CI, and future scripts, and specifies route/deny/test disposition for each. Tests use runner-prepared disposable PostgreSQL or invoke that runner; `db:push` is local-disposable-only and rejects production-like URLs.
- **Finding 2 — deployable TLS:** rc.6 freezes distinct runtime/migrator URL and CA/server leaf Vault/compose/Swarm secret identifiers, `0400` key and `0600` URL/cert/CA mount requirements, actual compose/Swarm service-DNS SANs, PostgreSQL TLS settings, legacy-client drain/termination plus `hostssl` enforcement, verified-TLS readiness ordering, fresh/existing transition, CA-overlap rotation/TLS-only rollback, and standalone plus federated/Swarm positive and missing/wrong CA/SAN/downgrade negatives. PGlite is explicitly non-PostgreSQL evidence.
- **Finding 3 — manifest/0009:** rc.6 defines manifest v1 canonical UTF-8 serialization and raw SQL-byte SHA-256, logical journal order, manifest ownership/grants, exact one-to-one observed hash tuple mapping, non-normative physical insertion order, safe original-0009 conditions, ambiguous-effect fail-closed recovery, and the full required reconciliation/backup test matrix. It preserves shipped 0009 bytes and forbids manual ledger adoption/insertion.
- **Finding 4 — advisory lock:** replaced `hashtext` with fixed signed-int4-safe `(1297044289,1262636593)` (`MOSA`,`KBN1`), one `max:1` runner session, close-on-crash semantics, and contention/crash/readiness/unrelated-key evidence.
- **Finding 5 — identifiers/search path:** selects `mosaic`, exact `pg_catalog,mosaic` per pooled connection and `SET LOCAL` transactions, plans audited public-object/extension/Drizzle relocation, forbids config-derived identifiers, limits bootstrap quoting to server-side `%I` on fixed allowlist, and requires injection/pool-reset negatives.
- **Finding 6 — safe DAG:** cards 00–07 are inactive prepared capability while owner-runtime remains N-1; KBN-101-08 is the one atomic activation release after platform roles/TLS and compatible code. Mosaic control plane/Jason alone can activate/rollback; no force-on-red, runtime bypass, or temporary compatibility survives the gate. The approved role graph, post-KBN-100 immutable certification, and KBN-105 gate remain unchanged.
- **Review remediation:** Codex review found the legacy plaintext cutover gap, missing URL-secret bindings, historical `public` migration incompatibility, non-reproducible checkout-byte hashing, CONNECT allowlisting regression, and undocumented direct-DDL operator instructions. rc.6 now requires drain/scale-to-zero, residual non-TLS session termination, `hostssl` with no `host` rule, zero plaintext-session proof, TLS-only post-enforcement rollback, distinct named runtime/migrator secret consumers, canonical Git-blob/LF manifest bytes, a runner-only owner-controlled legacy-public bootstrap followed by `mosaic` relocation, explicit CONNECT/TEMP revocation, and KBN-101-07 replacement of direct-DDL documentation. It also required the durable exact-head report link above. Pre-existing `.mosaic` runtime state remains excluded.
- **Validation:** Prettier on all changed Markdown, repository Markdown link/whitespace check, and strict native-kanban contract TypeScript passed before final staging; the final staged diff excludes `.mosaic`. No source-code TDD applies because this is contract-only remediation.

## 2026-07-15 — rc.7 residual remediation session

- **Objective / correction:** Close every residual in the independent exact-head rc.6 re-review at `/home/hermes/agent-work/reviews/771-kbn101-contract-rereview-45ba3d6.md` for `45ba3d6ad4d5383f457a303c05bc816144cfa48a`, without changing source, compose, CI, deployment, migration, or secret artifacts. Only the existing authorized planning/documentation paths are eligible; pre-existing `.mosaic` state remains excluded.
- **Source-backed scope confirmed:** the active `federated-pgvector.integration.test.ts` executes `CREATE TEMP TABLE`; tracked `docker/init-db.sql` and `infra/pg-init/01-extensions.sql` both create `vector`; `migrate-tier.ts` advertises raw `CREATE EXTENSION`; and `tools/federation-harness/docker-compose.two-gateways.yml` is current plaintext two-PostgreSQL/two-Gateway topology. Current `schema.ts` has 36 default-schema `pgTable` declarations, 6 default `pgEnum` declarations, and an unqualified `vector` custom type; historical migrations contain `public` references.
- **Plan:** (1) make the finite DDL/static-bypass inventory and `DATABASE_URL`-only denial matrix exact, including the runner-prepared persistent pgvector fixture and migrated two-gateway harness; (2) freeze executable `public`-to-`mosaic` and `mosaic_extensions` transition, Drizzle ownership, object-catalog classes/order, eligibility and rollback tests; (3) bind repository/control-plane ownership, UID/GID validation, exact artifact/mount rules, and both gateway TLS topology; (4) correct PRD acceptance mapping and cross-document rc.7 status; then run formatting, link/contract, source-path, diff, review, commit, queue guard, and push.
- **Independent review closure:** initial Codex review found Gateway-key consumer wording, `CLAUDE.md` omission, final schema-owner set, and placeholder SANs; all are now explicit. Re-review found the legacy `0001` vector-type resolution problem and `docs/federation/SETUP.md` raw-DDL instruction; the legacy runner now uses only its fixed non-writable `pg_catalog,public,mosaic_extensions` history path, while runtime remains `pg_catalog,mosaic`, and the federation setup path is assigned to KBN-101-07/static inventory. Security review final verdict: no confident vulnerability. The review also repeated the pre-existing tracked `.mosaic` session-state concern; it remains deliberately unstaged/excluded by this task.
- **Completion evidence:** changed Markdown is Prettier-formatted; local links and strict native-kanban TypeScript passed; source-path inventory confirmed all current referenced paths (the new `apps/gateway/Dockerfile` is explicitly a planned KBN-101-05 artifact); diff check and authorized-doc allowlist passed. No source-code TDD applies to this documentation-only remediation.

## 2026-07-15 — rc.8 exact residual remediation session

- **Objective / correction:** Close all three HIGH findings in the independent rc.7 exact-head re-review at `/home/hermes/agent-work/reviews/771-kbn101-contract-rereview2-0778eba.md` for `0778eba2db3c2dfbaca3af352b12ba0389d3552b`. Scope remains documentation-only: no source, config, Compose, CI, deployment, secret, or migration artifact changed; pre-existing `.mosaic/orchestrator` state remains excluded.
- **Finite authority closure:** KBN-101-06 now classifies exact current source/scripts/package bins, operator docs, and deploy manifests. `packages/db/src/index.ts` has explicit removal/compile-import negative ownership; `docs/fleet/backlog-conventions.md` and `docs/PERFORMANCE.md` now remove first-use/direct-Drizzle/Gateway-startup migration instructions and point to sole runner/readiness. Byte-immutable historical SQL, PGlite-only routines, negative-test literals, vendored/generated artifacts, and labeled historical reports are exact-path/category reviewed allowlists; unknown hits fail. The contract explicitly rejects relying on a naive token scan alone.
- **Executable and exclusive handoff closure:** KBN-101-03 exclusively owns the published `mosaic-db-migrator` bin, `packages/db/src/cli.ts`, private migrator modules, `docker/db-migrator.Dockerfile`, exact `--run|--verify|--help`, environment/argv limits, sanitized exits, and command/order tests. KBN-101-00 exclusively owns `infra/pg-bootstrap/roles.sql`, `infra/pg-bootstrap/extensions.sql`, `infra/pg-bootstrap/README.md`, and bootstrap tests. KBN-101-05 exclusively owns `tools/db/render-postgres-secrets.ts`, its tests, and deployment declarations, consuming the versioned bootstrap interface without overlap.
- **pgvector owner closure:** `mosaic_extension_owner` is dedicated NOLOGIN, available only to the external bootstrap actor during bootstrap; fresh vector/member ownership remains there. The contract records PostgreSQL's unsupported extension-owner transfer and forbids catalog mutation, ownership adoption, and `DROP CASCADE`. Approved-owner existing extensions use verified `ALTER EXTENSION ... SET SCHEMA`; legacy runtime-owned extensions fail closed to a controlled backup/shadow/runner/copy-evidence/quiesce/final-delta/atomic-switch/read-only-rollback migration. It requires `pg_extension.extowner`, member/schema/version, and runtime/migrator/schema-owner ALTER/DROP/member-update denial tests across clean, approved-owner, legacy shadow, partial/resume/rollback, and N-1.
- **Cross-document state:** PRD, KBN contract, shared contract, task decomposition, index, sitemap, current operator docs, and this scratchpad are rc.8-consistent. The only intended next action is a fresh independent exact-head re-review after validation/push.
- **Validation / review:** Prettier passed for all nine changed Markdown documents; local links passed (9 documents); `pnpm exec tsc --noEmit -p docs/native-kanban-sot/tsconfig.json` passed; source-path inventory passed (20 paths: 8 current, 12 explicitly planned); finite-authority requirement checklist and `git diff --check` passed. Manual documentation/security review checked the three requested paths, private-only runner boundary/exit contract, non-overlapping 00/03/05 ownership, extension-owner denial and shadow path, and `.mosaic` exclusion. No source-code TDD applies because this is contract-only remediation.
- **Delivery evidence:** committed `1423c2ad02b5471eab006fb4c878808e5b29c387` as `docs(#771): close role split rc.8 residuals`. Push queue guard returned `state=unknown` without error; push hook ran repository `pnpm typecheck`, `pnpm lint`, and `pnpm format:check`, all PASS; branch push succeeded. This final evidence append is committed next, then the exact remote head is verified. The only intended next action is a fresh independent exact-head re-review.

## 2026-07-15 — rc.9 final residual remediation session

- **Objective / correction:** Close the three findings in `/home/hermes/agent-work/reviews/771-kbn101-contract-rereview3-9cf5d2f.md` against exact head `9cf5d2f6641b14082dc3294e2a84d1fb4ccc019d`: move `mosaic_extensions` schema ownership to `mosaic_extension_owner`; replace all broad/conflicting KBN-101 card ownership with a complete disjoint exact-path/test manifest; and classify the current architecture-plan `db:migrate` instruction with pinned scanner mechanics. Scope remains documentation-only; no source/config/Compose/CI/deployment/secret/migration artifact and no `.mosaic` path may be modified.
- **Plan:** inspect current tracked source topology to name only existing paths; update the normative contract first and synchronize PRD/shared/task/index/sitemap/version language; run Prettier, changed-doc links, strict contract TypeScript, source/path and manifest-overlap checks, diff allowlist, independent documentation/security review; then stage docs only, commit, queue-guard, push, and verify exact remote SHA. No source-code TDD applies because this is contract-only remediation.
- **Closure implemented:** rc.9 makes `mosaic_extension_owner` create and own `mosaic_extensions`, `vector`, and members; the external bootstrap actor alone temporarily `SET ROLE`s for fresh/approved-owner work, while schema owner has only `USAGE` for legacy type resolution and never temporary `CREATE`. Catalog/default-ACL plus direct DDL/member denials now cover runtime, migrator, and schema owner through fresh, relocation, shadow/resume, and rollback evidence.
- **Delivery decomposition:** Replaced broad ownership with complete disjoint 00–09 manifests, exact tests/evidence, producer-before-consumer edges, and an explicit no-intermediate-deploy N-1 activation statement. `packages/storage/src/{cli,migrate-tier}.ts` belongs only to -02; the current tracked init artifacts are retired by -02 as direct-DLL closure; -03 owns all runner/index/migrate/config/schema assets and exact compiled-bin/image mapping; -07 owns docs only; -08/-09 own evidence only.
- **Classifier closure:** -06 has exact scanner/inventory/matrix paths, canonical inventory fields, classes/dispositions, fixed token/rule set, exact allowlist categories/restrictions, and self-test requirements for unknown, duplicate-owner, ownerless, missing-path, and historical masking cases. The architecture plan now marks direct `db:migrate` superseded and uses `mosaic-db-migrator --run`.
- **Validation:** Prettier check, strict native-kanban contract TypeScript, changed-document local-link resolution, `git diff --check`, and an automated manifest-overlap/owner/current-source-path check passed. Targeted documentation/security review verified role ownership/default privileges/search path/preflight/legacy/shadow/rollback consistency, disjoint manifests/DAG/activation, scanner mechanics, exact bin/entrypoint, and no `.mosaic` staging intent. No source-code TDD applies because this is documentation-only remediation.
- **Next:** stage documentation only, commit, queue-guard, push, verify exact remote SHA, then wait for fresh exact-head review.
- **Delivery evidence:** committed `8cbad2bcd9bc7507052f74f35670ef7c8e39e44e` as `docs(#771): close role split rc.9 residuals`; `ci-queue-wait.sh --purpose push -B main` returned `state=unknown` without error; push-hook `pnpm typecheck`, `pnpm lint`, and `pnpm format:check` all passed; push succeeded and `origin/docs/771-kbn101-db-role-split` resolved to that exact SHA. Pre-existing `.mosaic/orchestrator/{mission.json,session.lock}` remains modified but intentionally unstaged/excluded. The only next action is a fresh independent exact-head re-review.

## 2026-07-15 — rc.10 Ultron NO-GO remediation intake

- **Objective / scope:** Close only HIGH-1 and HIGH-2 in `/home/hermes/agent-work/reviews/771-kbn101-ultron-11f09a1.md` against exact head `11f09a15e43e72afda6a0374668996b4bda9e536`. Documentation only: preserve approved content; no source/config/Compose/CI/deploy/secret/migration edits and no `.mosaic` staging.
- **Plan:** (1) replace the impossible `NOLOGIN NOSUPERUSER` extension owner with the exact non-login, zero-member `NOLOGIN SUPERUSER` external-control exception and document the non-delegable superuser residual; (2) require the audited external superuser session to `SET ROLE`/`RESET ROLE` for fresh, approved-owner, and shadow extension work, then prove catalog ownership and all service-role denial; (3) assign the active migrate-tier guide exclusively to KBN-101-07, add its active secure route to the -06 inventory/matrix/scanner schema, and freeze `--target-url-file /run/secrets/mosaic_migrate_target_url` plus pre-migrated target/dedicated non-DDL importer requirements; (4) synchronize PRD/shared/tasks/index/sitemap/guide and rc.10 status; (5) validate formatting, links, contracts, source paths, finite operator inventory, diff, review, commit, queue guard, push, and exact remote SHA.
- **Target-image evidence before edits:** local `pgvector/pgvector:pg17` control file reports `default_version = '0.8.2'`, `relocatable = true`, and no `trusted`/`superuser` override (untrusted PostgreSQL extension). An isolated PostgreSQL 17 container proved a `NOLOGIN SUPERUSER` `mosaic_extension_owner` can create `mosaic_extensions` and `vector` under external-superuser `SET ROLE`, returns to the external session after `RESET ROLE`, has `rolcanlogin=false`, `rolsuper=true`, zero role members, exact extension/schema and owner-bearing-member ownership, and denies `SET ROLE`, `ALTER EXTENSION`, `DROP EXTENSION`, and schema ownership changes to runtime, migrator, schema owner, and data importer. Ownerless PostgreSQL catalog member classes (`pg_am`, `pg_cast`) were intentionally not misrepresented as ownable members.
- **TDD decision:** skipped as not applicable: this is a documentation-only contract remediation. Future KBN-101-00/-02/-06 tests are specified as the situational evidence; no source/test artifact is permitted in this task.
- **Final scope correction:** Per control-plane direction, remediation remains bounded to the two Ultron findings. The active guide is explicitly a non-operative KBN-101 contract until its owned implementation/activation lands; no additional design, source, CI, deployment, secret, or test artifact was added.
- **Validation evidence:** target-image/container role proof PASS (pgvector `0.8.2`, `relocatable=true`, trusted absent/untrusted; external-superuser `SET ROLE`/`RESET ROLE`; exact extension/schema/owner-bearing-member ownership; zero membership and service-role denials). Changed-doc Prettier, strict native-kanban contract TypeScript, local-link resolver (8 docs), finite operator-doc inventory (one active KBN-101-07 route with no credential argv in executable blocks), source-path check (6 current paths), and `git diff --check` PASS. Pre-existing `.mosaic/orchestrator/{mission.json,session.lock}` remains intentionally excluded.

## 2026-07-15 — rc.11 exact-head re-review remediation intake

- **Objective / scope:** Close only HIGH-1 and HIGH-2 in `/home/hermes/agent-work/reviews/771-kbn101-contract-rereview5-f60144e.md` against `f60144eb3eab6234ab01bda592052081c777897e`: target-bind the non-DDL tier importer with a runner-produced signed attestation, and disposition every current non-normative documentation scanner hit, including the active user-guide route and federation historical status. Documentation only; no source/config/Compose/CI/deployment/secret/migration edits and no `.mosaic` staging.
- **Frozen decision:** `mosaic-db-migrator --verify` is trusted only after TLS/identity/manifest/schema verification and signs a credential-free JCS/Ed25519 v1 artifact from a runner-only fixed root-owned private-key file. The artifact binds secret version/exact URL-file digest, canonical TLS/CA/SPKI/server/database/importer/manifest/schema identity, issued/expiry/nonce, and producer build/correlation; importer gets pinned public key plus artifact only. It validates both files and all bindings before target connection, opens/digests/connects from one in-memory URL read, validates server identity before DML, and distinguishes zero connection from zero DML. Key overlap/revocation, secret-rotation invalidation, replay cache, atomic rename, and sanitized errors are mandatory.
- **Ownership:** -03 owns producer/signing DTO/tests; -02 importer interface/verification tests; -05 key/artifact mounts/render tests; -06 inventory/matrix and non-masking scanner tests; -07 operator guide. The exact manifests remain disjoint.
- **Operator correction:** `storage migrate` is schema-wrapper delegation only; legacy `--from hot --to cold` tier-copy guidance is unavailable. Secure tier copy is `migrate-tier` with `--target-url-file` plus `--target-attestation-file`. Federation M1 task language is status-only and adjacent KBN-101 text says it authorizes no current DDL.
- **TDD decision:** skipped as not applicable: this bounded task changes documentation only. Future -02/-03/-05/-06 tests are specified as the required implementation evidence.
- **Validation / review:** Prettier PASS on all 18 changed Markdown/root-doc files; `pnpm exec tsc --noEmit -p docs/native-kanban-sot/tsconfig.json` PASS; changed-doc local-link resolver PASS (71 links); full current docs scanner/disposition PASS (10 non-normative paths, 4 normative-contract paths; no unknown active command); legacy `storage migrate --from` and raw target-URL bypass scan PASS; attestation field/interface assertion PASS; exact source ownership/manifest-overlap assertion PASS; `git diff --check`, docs-only scope, and secret-leak scan PASS. Manual documentation/security review verified key isolation, JCS/detached signature, secret-file hash as non-secret evidence, verification ordering/TOCTOU/replay/rotation, no connection vs zero DML, non-masking scanner class, status-only federation history, and no regression to pgvector closure. No source-code TDD applies.
- **Delivery evidence:** committed `6227f076c819bd124383851633b16d4ef9c88a98` as `docs(#771): bind tier importer to verified target`; staged scope was 18 documentation files only and excluded `.mosaic`. Pre-push queue guard returned `state=unknown` without failure. Push hook ran repository `pnpm typecheck`, `pnpm lint`, and `pnpm format:check`: PASS. Branch push succeeded. Verify the exact remote SHA after this final delivery-evidence append, then idle for independent exact-head re-review and Ultron reverify. `.mosaic/orchestrator/{mission.json,session.lock}` remains pre-existing and excluded.

## 2026-07-15 — rc.12 bounded deployable-importer/SETUP remediation plan

- **Objective / scope:** Close the two HIGH findings in `/home/hermes/agent-work/reviews/771-kbn101-contract-rereview6-65663d4.md` against exact head `65663d4f72f2ace5148bce9aeba04b5a8d5beee9`. Documentation/tracking only; preserve every earlier closure; do not modify source, deployment, Compose, CI, migration, Vault, or `.mosaic` artifacts.
- **Plan:** (1) make KBN-101-05 own canonical KV-v2 importer URL/version provenance, separate immutable generation-pinned renderer consumers, importer CA/public-key/attestation mounts, fixed importer/migrator identities, safe-fd lifecycle, isolation/rotation/TOCTOU/error evidence, and -02/-03/-06 handoffs; (2) convert `docs/federation/SETUP.md` to a non-operative N-1 reference with only the required external-bootstrap → TLS/roles → runner `--run` → `--verify` → Gateway-readiness sequence; (3) broaden scanner grammar plus path-specific semantic negatives so indirect first-boot/startup/init/Compose authority cannot be masked by a named, normative, or status record; (4) synchronize PRD/shared/tasks/index/sitemap/federation task state and this scratchpad; (5) run formatting, links, strict contracts, complete-doc scanner/semantic assertions, diff/operator inventory, material/manifest overlap, review, docs-only stage, commit, queue guard, push, and exact remote-SHA verification.
- **TDD decision:** skipped because this bounded change is documentation-only; the affected -02/-03/-05/-06 implementation tests and scanner semantic fixtures are specified as mandatory future evidence.
- **Review correction:** independent Codex review found the initial `10003` producer → immutable `10002` importer artifact handoff impossible. rc.12 now specifies the required privileged deployment handoff controller: after runner success it safe-opens/verifies producer artifact plus generation, exact-byte copies/fsyncs/atomically renames to a distinct `10002:10002` `0400` importer mount, seals it read-only, and starts no importer on partial/wrong-generation/owner/mode failure. It receives only a root-owned non-secret expected-version/URL-digest/generation descriptor plus public verifier key, never URL bytes/private key; producer/importer share no writable file or mount. Dry-run nonce consumption now requires fresh `--verify` and artifact before `--yes`; the active-route schema requires `targetCredentialVersionFile`. Pre-existing `.mosaic` state is confirmed excluded from staging.
- **Validation result:** changed-doc Prettier and `git diff --check` PASS; strict `pnpm exec tsc --noEmit -p docs/native-kanban-sot/tsconfig.json` PASS; contract/SETUP material and non-operative semantic assertions PASS. Pending final docs-only stage, commit, queue guard, push, and remote-head verification.

## 2026-07-15 — rc.13 MILESTONES semantic-scan remediation intake

- **Objective / scope:** Close only HIGH-1 from `/home/hermes/agent-work/reviews/771-kbn101-contract-rereview7-7365dcf.md` against `7365dcf15c09262a46132b9c011769ad98243641`. Documentation/tracking only: assign `docs/federation/MILESTONES.md` exclusively to KBN-101-07 and its exact former startup-extension wording to the KBN-101-06 semantic fixture/inventory; replace the wording with a non-operative historical/status disposition. No source, deployment, Compose, CI, Vault, migration, provider, or `.mosaic` artifact is authorized.
- **Frozen remediation:** runtime/startup extension provisioning is superseded and forbidden. The sole eligible sequence is external bootstrap → TLS/roles → `mosaic-db-migrator --run` → `mosaic-db-migrator --verify` → Gateway readiness. The MILESTONES record authorizes no current DDL, Compose/init, or startup path. The scanner must prove the exact former wording fails before any inventory/status-only mask and rerun its full current-doc operator/deploy-manifest scan outside reports/scratchpads.
- **Plan:** update only MILESTONES plus the exact KBN-101 contract/inventory/manifests and necessary PRD/shared/task/index/sitemap/version/status references; run full lexical+semantic scan, Prettier, links, strict contract TypeScript, diff and manifest-overlap checks; stage docs only (excluding pre-existing `.mosaic`), commit, queue-guard, push, and verify the exact remote SHA. No source-code TDD applies because this bounded task changes documentation only.
- **Remediation result (pre-commit):** `MILESTONES.md` now makes runtime/startup extension provisioning superseded and forbidden, with only external bootstrap → TLS/roles → `mosaic-db-migrator --run` → `--verify` → Gateway readiness; it authorizes no current DDL/Compose/init/startup path. The KBN-101-07 manifest/inventory is exclusive and KBN-101-06 documents the exact former wording as a semantic negative that fails before inventory masking. Full current-doc scan outside reports/scratchpads: 103 Markdown files, 10 lexical-hit paths classified, 2 owned Compose-before-runner references, and zero ownerless indirect/literal routes. Prettier, strict native-kanban TypeScript, local links (64/0), diff check, and 95-path manifest-overlap reconstruction (0 overlaps; MILESTONES only -07) passed. Pre-existing `.mosaic/orchestrator/{mission.json,session.lock}` remains excluded.
- **Delivery checkpoint:** committed remediation as `237bac81c93dc4305470cea23a67e4ced730bd61` (`docs(#771): close MILESTONES startup authority`). Push queue guard returned `state=unknown` without failure; the push hook ran repository `pnpm typecheck`, `pnpm lint`, and `pnpm format:check`, all PASS; the remote branch resolved to that exact SHA. This final evidence append is committed next, then the exact remote head is verified and the branch waits for independent exact-head rereview/Ultron reverify. `.mosaic` remains unstaged.