Checkpoint — Codex FIX7 Blueprint Recheck 9 V2 Packet Rerun and Seal Review

Date: 2026-06-10
Status: CODEX_RECHECK_9_V2_NEEDS_T1_FIX
Production mutation: NO
Seal: NOT AUTHORIZED

Nominal V2 evidence passes: fresh KB reconstruction tree 21752e19c76f76613ba1680b734686c558a130e05d64dbc9eb5131b822fba480, HASH_MANIFEST 28/28, RERUN exit 0, manifest verify PASS, adversarial suite 22/22. Current real CLI corpus-error paths return 4 and suppress candidates.

Remaining blocker R9-V2-B6: manifest/adversarial negative tests synthesize cli_exit_contract=4 from canon.produce() state instead of executing the CLI wrapper. Codex changed the copied SSOT CLI error branch to exit 0, regenerated manifest/hash with packet tools, and observed full RERUN PASS plus adversarial 22/22 while missing-doc actual CLI exited 0. This is a load-bearing Article-14/disguised-hardcode proof gap.

Verdicts: R9-B1 NOT CLOSED; R9-B2 CLOSED FUNCTIONALLY; R9-B3 NOT CLOSED; R9-B4 CLOSED; R9-B5 CLOSED at governed MCP-byte level. Article 13 PASS; Article 14 FAIL. N7/N8/P7 and authoritative canonicalizer pin remain blocked. T1 must execute/assert actual CLI exits in negative tests and add a fail-open-wrapper regression before fresh Codex rerun.

Full report: knowledge/dev/reports/architecture/codex-fix7-blueprint-recheck-9-v2-packet-rerun-and-seal-review-2026-06-10/00-readme-first.md