P3D — Phase 5C2 Impact Addendum v3

Date: 2026-05-12 Rev: 3 (TAC→UI baseline required, terminology precision)

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1. 5C2 rev2 VẪN ĐÚNG — unchanged from v2

All 13 components (D3a, fn_iu_create, identity_profile, provenance, species, authority, concepts, gates, lock, verify, rollback, log, TAC untouched) remain valid.

2. PHẢI THÊM trước rev3

Terminology block, multidimensional awareness, TAC→UI preservation block, Entity Living DB contract ref, unit_version policy note, anti-hardcode ref, conservative resume. Minor patch.

3–4. Metadata preserve / Defer — unchanged from v2

5. Read-only inventory

TAC→UI baseline check is a migration safety prerequisite (step 3 in sequence §M). Not optional. Specifically: verify deploy status of commit 5ce3437, /knowledge/laws reachability, Đ35 render, TAC source confirmation, baseline tree/order evidence.

Prompt DRAFT: prompts/p3d-pack1-tac-ui-baseline-readonly-check-prompt-DRAFT.md

6. TAC→UI preservation impact

NO_TOUCH_CURRENT_TAC_UI
  5C2 does NOT modify tac_* tables, Nuxt files, Directus permissions

PARALLEL_IU_PILOT_ONLY
  IU rows created alongside TAC, not replacing

UI_REDIRECT_FORBIDDEN_UNTIL_VERIFIED
  Laws Page continues reading tac_*. No feature flag during pilot.

TAC_SOURCE_REMAINS_CANONICAL_FOR_UI_DURING_PILOT
  User sees TAC-rendered content only.

7. Conclusion

5C2 may resume as a parallel IU pilot that does not affect current TAC→UI runtime, after: (1) v3 design approved, (2) TAC→UI baseline check PASS. UI cutover = separate pack after fidelity verification.

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Addendum v3 | 2026-05-12