61 — SB-11 Event-Domain Register-Before-Emit Rehearsal Results (R-5)

Doc: 61. Role: Live BEGIN..ROLLBACK rehearsal result for SB-11 (governance event domain + handoff path; doc 41). Executes doc 48 Prompt 4. 0 new tables; ZERO emit. Status: REHEARSAL RESULT — PASS. Author-mode BEGIN..ROLLBACK, ZERO COMMIT, ZERO emit, all rows active=false, entry==exit proven. Build NO-GO. Date: 2026-06-01. Entry baseline: doc 57.

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61.1 What was rehearsed

• No CREATE TABLE (SB-11 = 0 new tables; pure reuse — no second bus/store, no-island, doc 41/42 §42.8).
• Register 5 governance-domain rows in event_type_registry with active=false (register-before-emit, Điều 45): handoff.object_born, backfill.sweep_completed, input.untrusted_source, candidate.scan_completed, coverage.scan_completed.
• Drift applied (F-57-2/3/4): delivery_lane='delayed' (the deferred/non-immediate lane; CHECK forbids 'deferred'); event_stream='alert' for findings, 'health' for heartbeats (CHECK forbids 'governance'); default_severity='warning' for the medium-severity input finding (CHECK forbids 'medium'). event_domain='governance' is free text (the new domain — not constrained).
• Assert event_outbox count unchanged inside and after the txn (zero emit, RE-5).

61.2 Transcript (verbatim)

===R5_SB11_PRE===  etr_total=40 | etr_gov=0 | outbox=182731 | outbox_gov=0
BEGIN SET SET SET   INSERT 0 5
===R5_INTX_REGISTERED_ALL_INACTIVE===
        event_type        | event_stream | delivery_lane | default_severity | active
--------------------------+--------------+---------------+------------------+--------
 backfill.sweep_completed | health       | delayed       | info             | f
 candidate.scan_completed | health       | delayed       | info             | f
 coverage.scan_completed  | health       | delayed       | info             | f
 handoff.object_born      | alert        | delayed       | info             | f
 input.untrusted_source   | alert        | delayed       | warning          | f
===R5_INTX_ZERO_ACTIVE_AND_ZERO_EMIT===  gov_active=0 | outbox_now=182731 | outbox_gov_now=0
ROLLBACK
===R5_SB11_POST===  etr_total=40 | etr_gov=0 | outbox=182731 | outbox_gov=0

Separate-session query_pg after ROLLBACK: event_type_registry=40, governance rows=0, event_outbox=182,731, governance outbox=0.

61.3 Entry==Exit

Object	Pre	In-tx	Post (sep. session)	Equal?
event_type_registry total	40	45	40	✅
event_type_registry governance	0	5 (all active=false)	0	✅
event_type_registry governance active=true	0	0	0	✅
event_outbox total (zero emit)	182,731	182,731	182,731	✅
event_outbox governance	0	0	0	✅
new tables	0	0	0	✅

61.4 Success criteria (all met)

• ✅ Governance rows registered active=false then removed by ROLLBACK; zero rows ever active=true (RR-9).
• ✅ Zero event_outbox emit — count identical pre/in-tx/post (RE-5). No emit was even possible (rows inactive).
• ✅ 0 new tables (pure reuse; no second bus/store — no-island).
• ✅ Register-before-emit demonstrated (rows exist inactive before any emit path).
• ✅ Enum drift (F-57-2/3/4) mapped cleanly under live CHECK constraints.
• ✅ os_proposal_approvals still 0; no COMMIT. Entry==Exit proven.

61.5 Verdict

R-5 SB-11 = PASS. The governance domain registers cleanly as the mother-9/0 inactive precedent, with the Điều-45 register-before-emit discipline intact and zero emit. The active=true flip stays deferred to T7 build after the full taxonomy (RR-9), never at rehearsal. Build NO-GO.