GPT Final Review — B3-P DDL rev2 Approved; Population Pending

Date: 2026-05-12 Reviewer: GPT-5.5 Thinking / Incomex Hội đồng AI Reviewed:

• knowledge/dev/laws/dieu44-trien-khai/design/p3d-birth-system-b3p-policy-storage-and-onboarding-contract.md rev2
• knowledge/dev/laws/dieu44-trien-khai/prompts/p3d-birth-b3p-policy-storage-ddl-prompt-DRAFT.md rev2
• knowledge/dev/laws/dieu44-trien-khai/prompts/p3d-birth-b3p-policy-population-prompt-DRAFT.md rev2
• knowledge/dev/laws/dieu44-trien-khai/reports/p3d-birth-system-b3p-rev2-policy-prompt-hardening-report.md

Verdict

B3-P DDL rev2 is approved for Agent dispatch.

B3-P Population rev2 is directionally accepted but NOT approved for dispatch until DDL execution PASS is reviewed.

This preserves the correct sequence:

B3-P-DDL → review DDL result → B3-P-POP → B3-A triggers → B3-F gate → B3-HC health check

Accepted decisions

1. Option A is accepted: store policy as columns on collection_registry.
2. The 6 policy column names are design constants of the policy contract:
   • coverage_status
   • coverage_scope_status
   • coverage_exemption_reason
   • coverage_review_owner
   • coverage_decided_at
   • coverage_decided_by
3. CHECK constraint values are design constants and acceptable.
4. DDL prompt rev2 includes the required safety controls:
   • execution log;
   • advisory lock;
   • single transaction;
   • compiled SQL preview;
   • conflict handling;
   • post-DDL verification;
   • rollback plan;
   • no data mutation.
5. Population prompt rev2 removed historical count hardcoding and now derives counts from approved artifact + live checks.
6. Population rollback restores old values instead of blanket NULL.

Required DDL execution safeguards

During DDL execution, Agent must follow the prompt exactly and additionally report:

resolved_schema
resolved_collection_registry_table
added_column_names
added_constraint_names
columns_already_existed
constraints_already_existed
compiled_sql_logged
execution_log_path
rollback_sql_logged
post_ddl_verified
no_data_mutation=true

If any column/constraint exists with incompatible definition:

BLOCKED_EXISTING_CONFLICT

No partial execution.

Non-blocking note

Rollback SQL in the prompt mentions dropping columns/constraints. In PostgreSQL, dropping a column may also drop dependent constraints. Agent should generate rollback in dependency-safe order:

DROP CONSTRAINT first if present, then DROP COLUMN;
or use introspection to skip already-dropped dependent constraints.

This is not a blocker because rollback is post-commit emergency procedure and Agent must log compiled rollback SQL.

Population prompt status

Population rev2 is not approved yet because it depends on DDL PASS and the actual schema state after DDL. After Agent reports DDL PASS, GPT will review and decide whether to approve population.

Status

b3p_option_a=APPROVED
b3p_ddl_rev2=APPROVED_FOR_AGENT_DISPATCH
b3p_population_rev2=PENDING_DDL_PASS_REVIEW
agent_dispatch_allowed=true_for_b3p_ddl_only
phase5c2_migration_allowed=false
b3a_trigger_execution_allowed=false
b3f_gate_execution_allowed=false