GPT Review — Agent READ-ONLY Investigation IU Current Position — Accept + Dispatch 5C2-R0 — 2026-05-14

Scope reviewed

Reviewed:

• Agent report: knowledge/dev/laws/dieu44-trien-khai/reports/agent-readonly-investigation-iu-current-position-before-next-design-2026-05-14.md
• Opus review: knowledge/dev/laws/dieu44-trien-khai/reviews/opus-review-agent-readonly-investigation-iu-current-position-2026-05-14.md
• Current handoff: knowledge/dev/laws/dieu44-trien-khai/handoffs/handoff-p3d-pack1-return-to-phase5c2-after-birth-complete-2026-05-14.md
• Birth final review: knowledge/dev/laws/dieu44-trien-khai/reviews/gpt-final-review-birth-system-complete-authorize-phase5c2-resume-2026-05-14.md

Verdict

Status: ACCEPT_AGENT_INVESTIGATION__AUTHORIZE_PHASE5C2_R0_DESIGN_ONLY

Agent report is accepted. Opus review is accepted. The current position is now sufficiently verified to proceed to a design-only Phase 5C2 resume plan.

Confirmed current position

birth_system_complete_live_confirmed=true
phase5c2_resume_allowed=true
phase5c2_execution_allowed=false
bulk_migration_allowed=false
ui_cutover_allowed=false
vector_efficiency_alert=NONE
must_notify_user_now=false

Accepted evidence

Birth System

• birth_registry has canonical_address, owner, jsonb_profile.
• jsonb_profile invariant holds live: 285,965 rows, 0 NULL.
• identity_profile correctly absent from birth_registry.
• fn_birth_onboarding_full_scan_hc(jsonb) exists and health-check row DOT-BIRTH-ONBOARD-FULLSCAN-HC active.
• Birth triggers on birth_registry match Rev3 invariant.

IU/Text-as-Code core

• information_unit, unit_version, unit_edit_draft, unit_edit_comment live.
• Pack 22 / Pack 23 functions live, including create/plan/verify, edit draft, apply, edit, save.
• Gateway enforced: direct IU/UV writes blocked via gateway guard triggers.
• iu_edit.policy.default_mode=require_review confirmed.

F6 / DOT-119 / Pack 2B correction

Accepted correction: earlier assumption that Pack 2B had not executed was stale/incomplete.

• trg_birth_information_unit live with exact 18c definition.
• DOT-119 v2 script md5 matches historical safe version: 5883bce405b86ab436e885cf16fd22de.
• No CREATE OR REPLACE FUNCTION fn_birth_registry_auto clobber risk found in DOT-119 v2.
• collection_registry.description_policy has 0 NULL.
• information_unit and unit_version are structured_exempt.
• Pack 2B P1 executed PASS on 2026-05-05; pilot row pilot.iu0.test-001 remains live.
• unit_version has no independent birth trigger; this remains consistent with subordinate role.

TAC / Phase 5C2

• TAC tables live.
• DIEU-35 live with 36 members, matching baseline.
• No prior TAC→IU migration rows found.
• Rev4 5C2 prompt is reference-only and must be revalidated.

Vector/search

• vector_efficiency_alert=NONE accepted.
• Qdrant has one legacy collection, green status.
• IU vector collection not yet created.
• Health warning is known informational chunked-doc ratio, not an ALERT.

Key decision

The next work is not to rerun G-Pilot-1, not to redo Pack 2B P1, and not to start vector/outbox/UI.

The next work is:

PHASE_5C2_R0_RESUME_PLAN_TAC_TO_INFORMATION_UNIT_DESIGN_ONLY

Purpose:

• Resume Phase 5C2 after Birth completion.
• Build a fresh TAC→IU migration plan from live PG evidence.
• Treat rev4 as a reference pattern only.
• Revalidate against Birth Rev3, Pack 22 canonical writer, Pack 23 require_review policy, and the live 12-row IU pilot namespace.
• Produce read-only mapping/dry-run design; no execution.

Hard boundaries for next task

no_execution=true
no_db_write=true
no_ddl=true
no_dml=true
no_tac_write=true
no_bulk_migration=true
no_ui_cutover=true
no_schema_mutation=true
no_trigger_change=true
no_birth_system_change=true
no_vector_or_qdrant_mutation=true
rev4_reference_only=true

Required next Agent task

Dispatch Claude Code CLI xhigh / Agent with a design-only prompt to create:

1. knowledge/dev/laws/dieu44-trien-khai/design/p3d-phase5c2-resume-tac-to-information-unit-migration-plan.md
2. knowledge/dev/laws/dieu44-trien-khai/reports/p3d-phase5c2-resume-plan-report.md

Required design content

The 5C2-R0 plan must include:

1. Status reconciliation from Agent report and Opus/GPT reviews.
2. Live TAC source state: publications, DIEU-35, members/order/types.
3. Live IU target state: 12 pilot rows, Pack 22/23 functions, gateway, policy.
4. Rev4 revalidation matrix: assumption vs current live truth vs required patch.
5. TAC→IU concept mapping using current schema and fn_iu_create canonical writer.
6. Collision/risk analysis for existing pilot namespace.
7. Read-only mapping/dry-run approach, no writes.
8. Migration options:
   • R0 read-only mapping/dry-run only;
   • R1 one-publication pilot after review;
   • R2 controlled batch after pilot;
   • UI cutover remains separate future pack.
9. Validation criteria: row accounting, content hash, birth row coverage, render fidelity, TAC source untouched, rollback exact-key strategy.
10. Recommendation for next gate after GPT/Opus review.

Governance status after this review

gpt_review_status=PASS_ACCEPTED
agent_investigation_accepted=true
opus_review_accepted=true
phase5c2_r0_design_authorized=true
phase5c2_execution_allowed=false
bulk_migration_allowed=false
ui_cutover_allowed=false
next_recommended_action=DISPATCH_CLAUDE_CODE_XHIGH_PHASE5C2_R0_DESIGN_ONLY