GPT Review — Phase 5C2-R0 Resume Plan Design — Approve Next Read-Only Mapping — 2026-05-14

Scope reviewed

Reviewed:

• Design: knowledge/dev/laws/dieu44-trien-khai/design/p3d-phase5c2-resume-tac-to-information-unit-migration-plan.md
• Report: knowledge/dev/laws/dieu44-trien-khai/reports/p3d-phase5c2-resume-plan-report.md
• Opus review: knowledge/dev/laws/dieu44-trien-khai/reviews/opus-review-phase5c2-r0-resume-plan-design-2026-05-14.md
• Prior Agent investigation: knowledge/dev/laws/dieu44-trien-khai/reports/agent-readonly-investigation-iu-current-position-before-next-design-2026-05-14.md

Verdict

Status: APPROVE_PHASE5C2_R0_DESIGN__AUTHORIZE_R0_READONLY_MAPPING_PROMPT_DRAFT

The Phase 5C2-R0 resume design is accepted. Opus review is accepted.

This approval authorizes drafting the next Agent prompt for R0 read-only mapping artifact generation only. It does not authorize TAC→IU migration execution.

Confirmed design quality

phase5c2_r0_design_status=PASS
no_mutation_performed=true
live_pg_verified=true
tac_dieu35_verified=true
tac_member_count=36
tac_render_order_verified=true
iu_target_verified=true
iu_existing_rows_count=12
rev4_revalidation_matrix_complete=true
birth_rev3_integrated=true
pack22_fn_iu_create_integrated=true
pack23_require_review_integrated=true
tac_ui_preservation_integrated=true
recommended_option=5C2-R0_READONLY_MAPPING_DRYRUN
vector_work_allowed=false

Accepted strengths

1. Live TAC state verified: DIEU-35 has 36 members, render_order 0..35, 12 section types, 0 NULL owner.
2. Live IU target verified: 12 existing pilot/test rows, 19-column information_unit, 16-column unit_version, gateway enforced.
3. Rev4 revalidation is complete: 20 items, 0 blocking.
4. Birth Rev3 integrated correctly: birth_registry ELD columns and placeholder-at-birth behavior are understood; enrichment remains out of scope.
5. Pack 22 and Pack 23 are correctly reflected: canonical fn_iu_create, gateway discipline, require_review edit policy.
6. Rollback model is correct in principle for future R1: exact captured UUIDs only; pattern matching prohibited.
7. R0 correctly avoids calling even fn_iu_create_plan; it will emit string payloads only.
8. No vector work, no UI cutover, no bulk migration.

Non-blocking notes to carry forward

• D3a hybrid p_parent_ref=NULL is accepted for R1 because parent UUIDs do not exist before row creation. Hierarchy must be preserved in identity_profile; parent FK enrichment can be a later enrichment pack.
• LOGGING_DIR remains R1-deferred and must be verified before any write execution.
• 147 unclassified description_policy rows are non-blocking because information_unit and unit_version are structured_exempt.
• IU event emission to event_outbox with event_domain='information_unit' remains deferred and is not on the 5C2 critical path.
• IU vector collection remains deferred.

Authorization boundary

Authorized now:

Draft R0 read-only mapping execution prompt.
R0 agent may read live TAC/IU state and create KB mapping/report artifacts.
R0 agent must not write PG data or call mutating functions.

Still forbidden:

phase5c2_execution_allowed=false
r1_migration_allowed=false
bulk_migration_allowed=false
ui_cutover_allowed=false
schema_mutation_allowed=false
trigger_change_allowed=false
birth_system_change_allowed=false
vector_work_allowed=false
old_rev4_execution_allowed=false

Next task

Create Agent prompt:

knowledge/dev/laws/dieu44-trien-khai/prompts/agent-phase5c2-r0-readonly-mapping-artifact-prompt-2026-05-14.md

Purpose:

• Generate the 36-row read-only mapping artifact for DIEU-35 TAC→IU.
• Emit per-row mapping table, fn_iu_create call string, planned identity_profile patch, planned content_profile patch.
• Verify G0 gates, vocab coverage, collision count, TAC source immutability snapshot, existing IU namespace classification.
• Do not call fn_iu_create, fn_iu_create_plan, fn_iu_save, fn_iu_verify_invariants, or any mutating/planning function.

Expected outputs:

1. knowledge/dev/laws/dieu44-trien-khai/reports/p3d-phase5c2-r0-readonly-mapping-artifact-report.md
2. Optional structured artifact if needed: knowledge/dev/laws/dieu44-trien-khai/artifacts/p3d-phase5c2-r0-dieu35-mapping-artifact.json

Final status

gpt_review_status=PASS
opus_review_accepted=true
r0_design_approved=true
r0_readonly_mapping_prompt_draft_authorized=true
r0_mapping_execution_allowed=false_until_prompt_review_or_user_go
r1_migration_execution_allowed=false
next_recommended_action=DRAFT_R0_READONLY_MAPPING_PROMPT