Round-4 confirmatory re-review noted (c) admin-bypass-disable sits in Phase 2 while
the gate is framed Phase-1. Clarify there is no ordering window: the flip (Phase 3)
is gated on Phase 2 completion (B4), so branch protection incl. admin-bypass-disable
is necessarily in place before any flip. The check's implementation being a Phase-1
build task (not yet physically built) is expected for a pre-build plan; it is
non-optional and flip-blocking, enforced at the Phase-1 hard stop. Stopping the
plan-review cycle here per the project's '3 cycles, residual is build-time' rule.
Round-3 re-review resolved B2-B6 but flagged B1 still-open: the prior wording left
a 'enforced by hand until the check exists' escape hatch. Reframe B1 as a REQUIRED
Phase-1 build deliverable that blocks the flip (no manual fallback), with the
required-status-check + admin-bypass-disabled branch protection, and a dry-run
faithfulness note (same workflow file/jobs as live, only the privileged if: differs).
Round-2 cross-review (REQUEST CHANGES) folded:
- B1 deploy-before-merge made a concrete CI-enforced gate (required status check
fed by a box-exercised dispatch dry-run), not prose.
- B2 added rollback for a prematurely-flipped privileged job that actually RAN
(token rotate, revert opened PR/branch, audit the window) — distinct from an
accidental merge.
- B3 rollback is a tested, re-runnable script over ALL privileged surfaces
(workflow, environment, App perms, branch protection), not a one-time manual run.
- B4 Phase 3 explicitly gated on Phase 2 being fully provisioned + verified.
- B5 /sh-security-review + GPT-4.1 cross-review RE-RUN on the actual enabled
workflow before the flip, not only the inert version.
- B6 docs/memory updated incrementally at each privileged step; Phase 6 is the
final reconciliation pass.
Plus FIX/NIT/QUESTION: gate-weakening pattern review, check-name discovery test,
memory update on denylist change, snapshot retention in Phase 0, draft-PR
notification (Phase 4) + conservative-rollout controls (Phase 5) made concrete.
GH_TOKEN->GITHUB_TOKEN gate marked done (box alias added).
