08 — Final GO / NO-GO for the Next Step

8.1 This mission's verdict

F-2 rollback-only dry-run: PASS. Inside a single BEGIN..ROLLBACK, the coverage path was wired onto the real collection_registry source as live view objects, seeded with a transient draft ruleset, candidate scan-run + state, and ownership rows producing direct + inherited + missing owner behavior, then exercised for gap, conflict, and six integrity rejections — and rolled back with proven entry==exit from two independent channels. No COMMIT. Zero persistent mutation. The activation gate (os_proposal_approvals=0) is intact.

8.2 Completion-criteria scorecard (mission §7)

#	Criterion	Result
1	State recovery complete	PASS
2	Preflight passes	PASS (GO, doc 01)
3	F-2 runs inside BEGIN..ROLLBACK	PASS
4	No COMMIT	PASS
5	Meaningful seam/gap/owner logic tested	PASS (S1–S12)
6	Corrected thresholds used	PASS (18 / 210 per F-DR-1)
7	ROLLBACK completed	PASS
8	Entry==exit proven	PASS (both channels, Δ=0)
9	KB package published/readable	PASS (doc 09 / verification)
10	No unsafe mutation occurred	PASS

⇒ PASS (all 10 met; not PARTIAL — no objective skipped for safety; every F-2 test objective 1–10 achieved).

8.3 Staircase position

Step	State after F-2
F-0 readiness/boundary design	done
F-1 read-only dry-run	done
F-2 rollback-only dry-run	done — this package
F-3 rollback rehearsal of seam wiring + acyclic containment screen	eligible (F-2 clean) — optional consolidation step
F-4 ratified seam wiring (COMMIT)	NO-GO — L2+L4 ratification
F-5 small seeded run	NO-GO — F-4 + seed authorization
F-6 event-type activation	NO-GO — ratification + per-type auth
F-7 first real emit	NO-GO — production activation

8.4 GO — next executable step

The read-only (F-1) and rollback-only (F-2) paths are both proven. The remaining engineering dry-run value is small; the binding constraint is now authorization, not code. Two non-exclusive GO options:

• GO-A (optional): F-3 consolidation rollback rehearsal — a single BEGIN..ROLLBACK that also (a) wires the containment seam to a real acyclic source candidate (pivot/IU parent refs) and screens it for cycles, and (b) runs the gap path at a slightly larger subset (e.g. 5–8 collections) to confirm bounded behavior toward the 210 ceiling. Still zero COMMIT. This hardens the F-4 wiring spec before any ratified commit.
• GO-B (recommended primary): GPT review of this F-2 package + human B-RATIFY intake for the authorization model. This is the only path that unblocks F-4+.

8.5 NO-GO (unchanged, firm)

• F-4 seam COMMIT and all activation (F-4..F-7): NO-GO — blocked by the unsolved L2 council + L4 sovereign ratification of the authorization model (os_proposal_approvals=0). Agent cannot satisfy; human-only.
• Any axis/assignment/topic coverage dry-run: NO-GO — axis_registry/axis_assignment/coverage_rule ABSENT.
• Object-grain (birth_registry) dry-run: NO-GO for a first run — ~10⁶ source; needs SB-13 cursor.
• Any emit / system_issues / notification / DOT / worker start: NO-GO — zero-emit boundary.

8.6 Remaining blockers

1. L2+L4 ratification of the authorization model (the one gate) — human B-RATIFY intake. Unsolved.
2. Ratified seam-wiring decision (collection-grain inventory; acyclic containment source) — governance decision, with the F2-1 ::text cast folded into its DDL.
3. Axis substrate build — unblocks axis coverage.
4. F2-6 — reconcile/locate the missing GPT-review artifact(s).
5. F2-7 — restore the canonical governing-law file.

8.7 Next macro

ONE_ROOF_PHASE1_COVERAGE_DRY_RUN_F3_CONSOLIDATION_ROLLBACK_ONLY (optional GO-A) ∥ GPT review of this F-2 package ∥ human B-RATIFY intake for the authorization model (the only unblock for F-4+). No production activation in any branch.

8.8 Final verdict

GO (F-3 optional consolidation rollback-only / GPT review / human B-RATIFY) · NO-GO (F-4+ activation, axis, object-grain, emit). The read-only and rollback-only coverage paths are proven end-to-end against the real source with zero mutation; the activation boundary and ratification gate are preserved exactly.