KB-1746

Checkpoint — FIX7 P0 Production-Rehearsal-Only Rollback (2026-06-12)

3 min read Revision 1
tool-kiem-thufix7p0production-rehearsal-onlycheckpoint2026-06-12
<!-- DOC_STATUS: ACTIVE_NON_AUTHORITY -->

Checkpoint — FIX7 P0 Production-REHEARSAL-ONLY Rollback (2026-06-12)

Final status: FIX7_P0_PRODUCTION_REHEARSAL_ONLY_ROLLBACK_READY Delegation consumed: AUTHORIZE_PRODUCTION_REHEARSAL_ONLY Production mutation: NO · REAL_RUN/QT001/cutover: NO · CI/deploy trigger: NO · secrets: NO.

Done

  • Preflight A: surface-scoping READY, no-prod exec APPLIED, hardened validator byte-exact (e6547e69…956c47), fold through 461, production HOLD — all verified from governed KB bytes.
  • Isolated local clone locked (/private/tmp mktemp sqlite) — PROVEN_ISOLATED_NOT_PRODUCTION.
  • Clone rehearsal executed: read-only entry==exit; transactional BEGIN..ROLLBACK; committed + snapshot restore; executor integrity invariant. after_apply != before, after_rollback == before.
  • Hardened validator: --selftest PASS, rehearsal PASS, fabricated no-mutation entry fails closed.
  • Bad-input probes 10/10 fail closed; no production/seal token leaked; control allowed.
  • CI UNKNOWN classified (not yet designed → FIX7-P0-PROD-CI-SCOPE-1 OPEN; no CI triggered).
  • Forbidden surfaces 13/13 untouched/not-requested.
  • Decision packet updated; default HOLD; no production option selected.

Evidence

Packet fix7-p0-production-rehearsal-only-rollback-packet-2026-06-12/ (23 files, tree 7a9364c5b64d95350da4023ad101a902fc77eb994c487f995412fe547bd847f9, commands.sh OVERALL PASS, RERUN.sh PASS/MATCH, exit_codes all zero). Report md+json; decision packet; this checkpoint; current-state; governance addendum (TKT-OBJ-485..494, APPLY_NOW=NO).

Blockers (7 OPEN)

FIX7-P0-DRYRUN-PROD-ROLLBACK-1 partially discharged (clone leg proven; production leg OPEN); FIX7-P0-PROD-CI-SCOPE-1 classified; -PROD-BIRTH-SURFACE-1, -PROD-OPT4-1, -PLAN-REALRUN-1, -PLAN-SEPARATE-AUTH-1, -OPERATOR-INPUT-1 unchanged. Production stays separately gated.

Next

Owner/operator production decision (default HOLD). If not HOLD → separately-authorized lane proving snapshot/restore on an operator-provided production-shaped DB dump clone (still no production contact), before any production OPT-4 / REAL_RUN / QT001 / cutover (each separately granted).

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