Checkpoint — Codex FIX7 Final Design Approval

Date: 2026-06-08 Reviewer: Codex (design owner, final-approval authority) Mode: READ-ONLY production. No production DB/role/grant/trigger/function/scheduler/UI/REAL_RUN/permit/ledger/QT001-apply/source-IU/service mutation; no live SQL; no manifest activation; no ownership/ACL change; no permit; no Stage 2.6B. No T1/prior-Codex design-doc edit. KB design-approval artifacts only.

Final status

FIX7_DESIGN_OFFICIALLY_APPROVED_FOR_IMPLEMENTATION_PLANNING

Transition: FIX7_CP06_HASH_SPEC_PATCHED_READY_FOR_T1_FINAL_SHORT_REVIEW → FIX7_DESIGN_OFFICIALLY_APPROVED_FOR_IMPLEMENTATION_PLANNING.

Codex performed the final design-approval review after T1 returned DESIGN_READY_FOR_CODEX_FINAL_APPROVAL. All six checks A–F pass; zero blocking proposals; no contradiction found in T1's final review; no old issue reopened. The FIX7 design is the official approved design baseline.

Check roll-up

• CHECK A — T1 final PASS integrity: T1_FINAL_PASS_CONFIRMED (status + checkpoint + 11 docs readable; 0 blocking; OBS-01 editorial).
• CHECK B — CP-06 micro-patch acceptance: CP06_PATCH_ACCEPTED (P-01 evidence-deref · P-02 eight-key H04_SCOPE_V1 · P-03 H05/H02 membership + total orders · P-04 fail-closed extra-index; T1's reading matches patch text verbatim).
• CHECK C — non-regression: NON_REGRESSION_ACCEPTED (27 surfaces / 11 non-authority runtime-evidence tables / 0 new gates / 0 new hash contracts; RP-01..08 intact, RP-06 strengthened; CP-01..09 intact; hard blocks intact).
• CHECK D — zero-hardcode: ZERO_HARDCODE_FINAL_ACCEPTED (no hardcode / disguised hardcode / hidden CASE / literal-as-authority / mutable denominator / Directus-editable authority / arbitrary identity string / MD5-delimiter / source-text authority / existence-proof / routed-later-without-blocking-now).
• CHECK E — PG-first/native/driven: PG_NATIVE_DRIVEN_FINAL_ACCEPTED (truth in PG; PG-native enforcement; manifest/rule-driven; no policy in functions; exact-set sealed readiness; control-plane writer; Directus read-contract only; readiness blocked pre-cutover). Consistent with Codex PG_NATIVE_PASS_DESIGN_OPERATOR_GATED_LIVE.
• CHECK F — feasibility/scale: FEASIBILITY_SCALE_FINAL_ACCEPTED (PG16.13 + pgcrypto; object-count-independent; no hot-path scan / row-by-row apply / unbounded hash / unbounded recursion / blocking lock; rollback safe-blocked; later implementation planning can proceed without guessing after explicit authorization).

Residual

OBS-01 (editorial, non-blocking): CP-06 patch doc 01 rationale-prose nuance vs UNIQUE evidence_registry.artifact_sha256. Carried forward for optional cleanup at official-design write-up; does not gate approval.

Hard blocks unchanged

Implementation, Stage 2.6B, permit, REAL_RUN, QT001 apply, owner/ACL cutover — all BLOCKED. "Approved for implementation planning" authorizes only the next separate implementation-planning/authoring phase; it does NOT authorize production implementation now.

Inputs read

• T1 final short-review …/t1-fix7-final-short-review-after-cp06-patch-2026-06-08/00..10 + checkpoint (12 docs, full).
• CP-06 micro-patch …/codex-fix7-cp06-hash-micro-patch-from-t1-proposals-2026-06-07/00..06 + checkpoint.
• …/checkpoint-codex-fix7-design-correction-from-t1-rp-refinements-2026-06-07.md (rev 2).
• BIRTH_GATEWAY_DESIGN_INDEX.md (rev 25).
• Law prompt-muc-tieu-mo-for-claude-code.md (v1.3 confirmed; full text not re-read per quota-saving directive — T1's §3.4/§4F/§4G/§4H/§4I/§5/§6 alignment corroborated by index + prior record).

Output

• Report: knowledge/dev/reports/architecture/codex-fix7-final-design-approval-2026-06-08/00..07
• Checkpoint: this file.
• Index: BIRTH_GATEWAY_DESIGN_INDEX.md advanced to rev 26 (FIX7 approval top banner).
• Current-state pointer: knowledge/current-state/reports/fix7-design-officially-approved-2026-06-08.md.

Next

Optional: initiate the separate FIX7_IMPLEMENTATION_PLANNING_AUTHORING phase when explicitly requested (writes the official design package; still pre-implementation). Later authorized phases, each still BLOCKED now and each requiring its own gate: implementation macro → Stage 2.6B (permit/run/keyset/resume + authority revoke) → permit → REAL_RUN → QT001 apply → owner/ACL cutover.