Checkpoint — Codex FIX7 Blueprint Recheck 9 V3 Black-Box CLI Oracle Review

Date: 2026-06-10
Status: CODEX_RECHECK_9_V3_AUTHORITY_BLOCKED
Production mutation: NO
Engineering verdict: PASS
Seal/approval: NOT AUTHORIZED in this run

Fresh governed-MCP reconstruction succeeded: 32 tracked files, tree b95df0a5d2f41f80bea0cef8621c1f8bb0f6b49a40175116418494ed4141ca6d; full 13-gate RERUN exit 0; HASH_MANIFEST 32/32; manifest verify PASS with 6 real CLI executions; black-box suite 10/10; fail-open regression 6/6; adversarial suite 25/25.

Independent Codex replay of the V2 attack on a V3 copy: fail-open mutation genuinely made missing-doc CLI exit 0, while --emit=1, --verify=1, RERUN=1 before PASS, black-box=1, and adversarial=1. Manifest laundering is blocked. Direct current negative CLI samples missing/extra/invalid/absent-dir each returned 4 with aggregate digest suppression.

Article 13 PASS; Article 14 PASS; no hardcode/disguised-hardcode defect remains in reviewed scope. Canonicalizer rev3 candidate is independently verified: revision 3, 38756 bytes, SHA-256 49c386a9b9666c09786fc4f89bc79776b6046eaee6f4da6d8537d2c753b734d0.

Remaining blockers are authority-only: N7 approval-event inputs, N8 Codex-authored detached seal, P7 authorized re-seal, and owner's standing do-not-approve. Do not implement FIX7 or perform prohibited runtime actions.

Full report: knowledge/dev/reports/architecture/codex-fix7-blueprint-recheck-9-v3-blackbox-cli-oracle-rerun-and-seal-review-2026-06-10/00-readme-first.md