Stage 1 — 07 QT Compatibility / No-Worse Proof (Supertrack G)

All checks are read-only or transaction-rollback. Stage 1 is safe relative to QT-001/QT-002.

v_birth_stage1_qt_compatibility_guard (8/8 PASS, live)

Check	Pass	Note
qt002_live_path_preserved	t	gateway + freeze intact
required_still_births	t	contract agrees REQUIRED births (ALL 74)
exempt_still_skips	t	contract agrees EXEMPT skip (ALL 36)
deferred_no_direct_managed_birth	t	contract defers (dry-run over ALL 58)
unknown_blocks	t	fail-closed
dup_identity_coalesces	t	idempotent ON CONFLICT
qt001_remains_blocked	t	backfill DOT still frozen
danger_dot_frozen_2of2	t	2/2 frozen

v_birth_stage1_no_worse_proof (5/5 PASS, live)

• stage1_adds_no_birth_trigger — Stage 1 created 0 triggers; tga 129→129 (cross-checked).
• stage1_does_not_call_into_gateway — fn_birth_registry_auto does not reference Stage 1 fns.
• contract_is_stricter_or_equal — for every class, contract births ≤ live births (EXEMPT=, REQUIRED=, DEFERRED<, UNKNOWN<).
• register_default_dry_run_no_write — fn_birth_register writes nothing unless explicit p_dry_run=false.
• no_bulk_backfill_executed — birth_backfill_ledger has 0 done rows.

The 8 macro test conditions (Supertrack G)

#	Condition	Evidence
1	BIRTH_REQUIRED still would birth/register	policy REQUIRED (all 74); register('agents',…,false)→registered in rehearsal
2	BIRTH_EXEMPT skips managed birth	policy EXEMPT (all 36); register EXEMPT→skipped even non-dry
3	BIRTH_DEFERRED no direct managed birth	register DEFERRED→skipped (all 58, dry-run)
4	UNKNOWN blocks	register/policy UNKNOWN→blocked/UNKNOWN_BLOCK
5	duplicate identity coalesces	T4 rehearsal: duplicate register→skipped (idempotent)
6	QT-001 remains blocked until Stage 2	backfill DOT frozen; permit table empty; qt001_gate BLOCKED
7	QT-002 live path not worsened	gateway byte-identical (norm-md5 c022f849); contract never adds births
8	dangerous DOT remains frozen	active wrappers exit 3, 0 CREATE OR REPLACE; 2/2 frozen

Birth-neutral / no-worse summary

birth_registry before==after across all Stage 1 DDL (1,210,851); the only birth deltas are realtime worker + KB report-upload provenance (knowledge_documents). No Stage 1 object can add a birth to birth_registry except fn_birth_register with explicit p_dry_run=false — which was only ever called inside a rolled-back transaction.