Codex Stage 2.5 QT-001 Apply Runtime / Hardcode / Scale Re-Audit

Date: 2026-06-06 Mode: READ-ONLY production audit. Only audit reports/checkpoint may be created. Status: COMPLETE - NOT_SAFE_NEEDS_FIX / SCALE_NOT_SAFE

Mission: determine whether hardened QT001 runtime is metadata-driven, fail-closed, fully automatic, and safe toward 100M+ objects.

All audit, runtime, hardcode, tier, collision, scale, decision, roadmap, MCP upload/readback steps complete.

Decision: do not open permits and do not apply Tier1. Runtime contains authority bypasses, direct/disguised hardcode, broken batch/resume semantics, and scale-breaking full rescans.

Final evidence: 12 canonical reports + checkpoint + current-state pointer created; vector readback returned decision, hardcode/resolver finding, and next macro. Post-upload read-only no-worse: birth_registry_total=1,210,928 (+14 authorized KB report births); Tier1 target births=8; QT001-origin births=0; open execute permits=0; done ledgers=0; cross-layer guard=9/9 PASS.