Checkpoint Codex Stage 2.6A QT001 Plan/Tier Registry Hardcode Audit

Status STAGE2_6A_FAIL_HARDCODE_STILL_DANGEROUS. Read-only. Do not accept 2.6A, proceed 2.6B, open permits, or apply.

Failure: builder hardcodes tier CASE; bad divergence drives Tier3; rules free text; blocked reason literal; signoff not current-plan bound; any non-superseded review contributes Tier1; hardcode guard false-passes; readiness validates presence more than authority; old public writer bypass remains.

Next macro BIRTH_STAGE2_6A_FIX_QT001_MACHINE_ENFORCED_TIER_PLAN_BOUND_SIGNOFF_AND_HARDCODE_GUARDS.

MCP upload/readback PASS. Post-upload no-worse: birth_registry=1,210,955 (+13 authorized KB audit births); Tier1 target=8; QT001-origin=0; permits=0; done ledgers=0; readiness BLOCKED; cross-layer=9/9 PASS.