P3D Pack 1 Phase 4 — Readiness Design Report

Date: 2026-05-11 | Author: Opus 4.7

Status

phase_status=PASS
mode=DESIGN_DISCOVERY_AND_DRAFT_ONLY
phase3_status=BLOCKED_ACCEPTED
migration_allowed=false
no_hardcode_contract=included
read_only_discovery_prompt_created=true
implementation_prompt_draft_created=true (blocked until discovery review)
hash_policy_recommendation=RECOMPUTE + source_hash provenance in content_profile
vocab_policy_recommendation=discovery-first seed from live TAC distinct values
species_composition_policy_recommendation=seed 2 rows species_collection_map; map parent_id directly; defer edges
governance_promotion_recommendation=staged: pilot PASS → promote observed→governed
no_mutation_performed=true
next_required_action=GPT_REVIEW_THEN_DISPATCH_DISCOVERY_PROMPT

Top 7 Decisions

1. Hash: RECOMPUTE — migrated rows get sha256(body), TAC hash preserved as source_hash in content_profile
2. Vocab: discovery-first — agent queries live TAC values, generates INSERT delta, no memory-typed values
3. Species: seed 2 rows — species_collection_map for IU/UV, species_code from live entity_species
4. Composition: direct map — parent_id → parent_or_container_ref, composition_role derived from hierarchy
5. Edges: DEFER — universal_edges materialization = DOT Tier 1, not migration
6. Governance: staged — pilot → verify → promote observed→governed
7. No-hardcode: binding contract — all values from live queries, no constants, snapshot disclaimers

Blocked

• Implementation prompt: BLOCKED until discovery results reviewed by GPT
• Migration: BLOCKED until Phase 5 gates G1-G10 PASS
• Birth gate expansion (species/composition): NOT recommended — keep Tier 0

GPT/User Review Required

YES — discovery prompt ready for dispatch. Implementation prompt blocked.

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Phase 4 Report | 2026-05-11