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KB-7067

GPT Directive to Opus — P3D Pack 1 IU Contract + TAC-IU Reconciliation

9 min read Revision 1
directiveopusp3dpack1iu-contracttac-iu-reconciliationtext-as-code2026-05-10

GPT Directive to Opus — P3D Pack 1: IU Canonical Contract + TAC↔IU Reconciliation

Date: 2026-05-10 Issuer: GPT-5.5 Thinking / Incomex Hội đồng AI Receiver: Opus Workstream: P3D_INFORMATION_UNIT_TEXT_AS_CODE Pack: P3D_PACK_1_IU_CANONICAL_CONTRACT_AND_TAC_IU_RECONCILIATION Mode: DESIGN + READ-ONLY INVENTORY ONLY

0. Mission

Design Pack 1. Do not implement.

Pack 1 must decide the relationship between two existing systems:

  1. TAC model:

    • tac_publication
    • tac_logical_unit
    • tac_unit_version
    • tac_publication_member
    • current proof: 3 publications / 86 units / 0 drift.

  2. Native IU model:

    • information_unit
    • unit_version
    • Pack 22 create/gateway runtime
    • Pack 23 edit/save/policy runtime.

The output must tell future packs whether TAC and IU should merge, bridge, or evolve, and define the canonical IU contract that future text-as-code packs will implement.

1. Read first

Mandatory:

knowledge/dev/laws/dieu44-trien-khai/reviews/gpt-review-p3d-step1-reauthored-spec-and-pack1-directive-2026-05-10.md
knowledge/dev/laws/dieu44-trien-khai/requirements/p3d-information-unit-text-as-code-requirements-spec.md
knowledge/dev/laws/dieu44-trien-khai/reports/p3d-information-unit-text-as-code-step1-spec-recovery-report.md
knowledge/dev/laws/dieu44-trien-khai/ssot/p3d-iu-text-as-code-completed-state-and-remaining-work-2026-05-10.md
knowledge/dev/laws/dieu44-trien-khai/ssot/p3d-iu-text-as-code-discrepancy-resolution-addendum-2026-05-10.md
knowledge/dev/laws/dieu44-trien-khai/ssot/p3d-iu-text-as-code-final-baseline-patch-2026-05-10.md

Foundation docs to verify exact contract details:

knowledge/dev/laws/dieu44-trien-khai/design/04-information-unit-profile-schema.md
knowledge/dev/laws/dieu44-trien-khai/design/07-iu0-index-and-core.md
knowledge/dev/laws/dieu38-trien-khai/P5-schema-draft-v0-2.md
knowledge/dev/laws/dieu38-trien-khai/tham-khao/p7a-segmentation-reference-76-units.md
knowledge/dev/laws/dieu43-system-context-law.md

Runtime reports to avoid rebuilding:

knowledge/dev/laws/dieu44-trien-khai/reports/22-pack-closure-iu-native-create-and-gateway.md
knowledge/dev/laws/dieu44-trien-khai/reports/23-p3c2-iu-apply-edit-functions-report.md
knowledge/dev/laws/dieu44-trien-khai/reports/23-p3c3-iu-natural-save-router-report.md
knowledge/dev/laws/dieu44-trien-khai/reports/23-p3c4-iu-policy-and-agent-context-report.md
knowledge/dev/laws/dieu44-trien-khai/reports/23-p3d1-notification-schema-functions-report.md
knowledge/dev/laws/dieu44-trien-khai/reports/23-p3d2-notification-triggers-report.md

2. Required output 1 — Pack 1 design

Create:

knowledge/dev/laws/dieu44-trien-khai/design/p3d-pack1-iu-canonical-contract-and-tac-iu-reconciliation-design.md

Required sections:

A. Executive decision

Recommend one path:

  • MERGE: TAC rows eventually become native IU rows; TAC tables may become views/projections.
  • BRIDGE: TAC and IU remain separate with governed bindings/edges.
  • EVOLVE: native IU evolves to subsume TAC semantics while preserving compatibility.
  • HYBRID: staged bridge now, future merge/evolve later.

Do not leave the recommendation ambiguous. If choosing HYBRID, define phase boundaries clearly.

B. Inventory comparison

Compare TAC and native IU concepts:

identity
canonical_address
publication membership
render_order
parent/section hierarchy
unit version
content/body
content hash
lifecycle_status
review_state
owner/domain metadata
birth registry / gateway
notification/event integration
vector boundary

C. Do-not-rebuild constraints

List all existing runtime that Pack 1 must preserve:

  • TAC 3 pubs / 86 units / 0 drift.
  • fn_iu_create gateway.
  • fn_iu_apply_edit_draft, fn_iu_edit, fn_iu_save.
  • require_review policy.
  • IU notification runtime.
  • event_outbox published display.
  • DOT-119 v2/no-clobber.

D. Exact UMC / contract verification

Re-read P38-XC and IU-0 docs. Produce exact UMC/core list with source citation paths. If the re-authored spec’s 16-concept list differs from exact P38-XC/IU-0 evidence, state the difference and propose correction.

E. Canonical IU contract v1

Define contract fields/concepts as:

  • Existing in native IU now.
  • Existing in TAC now.
  • Existing in both but named differently.
  • Missing and required for future packs.
  • Deferred/non-goal.

Use a table.

F. Reconciliation option analysis

For MERGE / BRIDGE / EVOLVE / HYBRID, analyze:

benefits
risks
migration complexity
compatibility with current TAC reader
compatibility with fn_iu_create/gateway
compatibility with Pack 23 edit/save runtime
impact on render_order and publication membership
impact on vector boundary
impact on event emission
rollback risk

Define recommended architecture with phase plan:

  • Phase 1: design-only / no mutation.
  • Phase 2: read-only inventory proof.
  • Phase 3: optional pilot/staging migration or binding proof.
  • Phase 4: implementation pack, after GPT/User review.

H. Acceptance criteria for Pack 1 implementation later

Must include at least:

  • All 86 TAC units accounted for.
  • Round-trip 0 drift preserved after any future migration/binding.
  • No direct-write into information_unit or unit_version.
  • fn_iu_create gateway remains canonical create path.
  • Pack 23 edit/save functions remain valid or have explicit compatibility patch plan.
  • render_order preserved.
  • Vector boundary stays one unit/version per chunk.
  • Event emission path can attach event_domain='information_unit' later.

I. Open questions and decisions needed

List decisions for GPT/User review.

J. Next pack recommendation

After Pack 1 design, recommend whether next step should be:

  • read-only inventory prompt;
  • implementation prompt for bridge/mapping;
  • or further design clarification.

3. Required output 2 — Optional read-only inventory prompt

Create if useful:

knowledge/dev/laws/dieu44-trien-khai/prompts/p3d-pack1-readonly-inventory-prompt.md

Purpose: allow Codex/Claude Code to inspect live schemas and counts only.

Must check at most:

tac_publication columns/counts
tac_logical_unit columns/counts/sample canonical addresses
tac_unit_version columns/counts/hash/lifecycle distribution
tac_publication_member render_order continuity
information_unit columns/counts/sample canonical addresses
unit_version columns/counts/version_seq/lifecycle/content_hash distribution
existing FK/constraints/indexes relevant to TAC/IU
fn_iu_create/fn_iu_save/fn_iu_apply_edit_draft existence/signatures

Hard boundary: read-only only.

4. Required output 3 — Pack 1 report

Create:

knowledge/dev/laws/dieu44-trien-khai/reports/p3d-pack1-iu-canonical-contract-and-tac-iu-reconciliation-report.md

Report fields:

phase_status=PASS|PARTIAL|BLOCKED
mode=DESIGN_ONLY
recommended_path=MERGE|BRIDGE|EVOLVE|HYBRID
read_only_inventory_prompt_created=true|false
implementation_allowed=false
runtime_checkpoint_dependency=PENDING|PASS|NOT_REQUIRED_FOR_DESIGN
no_mutation_performed=true
next_required_action=<specific>

5. Hard boundaries

  • No DB mutation.
  • No DDL.
  • No INSERT/UPDATE/DELETE.
  • No migration.
  • No new bridge table yet.
  • No new view yet.
  • No vector table.
  • No parent-child table.
  • No event trigger.
  • No Nuxt code.
  • No Directus mutation except KB document writes.
  • No DOT-119 execution/rewrite.
  • Do not run old DOT-119 v1.
  • Do not clobber fn_birth_registry_auto v2.
  • Do not direct-write information_unit or unit_version.
  • Do not add “Thông tin” filter.

6. Final response expected from Opus

Return only:

  1. Design path.
  2. Inventory prompt path, or not_created with reason.
  3. Report path.
  4. Recommended reconciliation path.
  5. Top 10 implementation constraints.
  6. Next required action.

7. Important note

Runtime checkpoint is still pending. That does not block Pack 1 design. It blocks implementation. Any implementation prompt after Pack 1 must require checkpoint PASS or equivalent read-only evidence.

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