09 — MCP-Readable Checkpoint (mirror of top-level checkpoint)

• macro: BIRTH_P0_STAGE0_DANGEROUS_DOT_EXECUTION_FREEZE_AND_GATEWAY_SSOT_GUARD
• date: 2026-06-06
• status: PASS
• mode: EXECUTION (principal-delegate)
• live_mutation: YES, reversible (2 DOT binaries quarantined + inert wrapper; 12 additive views)
• birth_neutral: YES (1,210,834 → 1,210,839; before==after each DDL; +5 = normal realtime)
• tga_unchanged: 129; apr_unchanged: 42; gateway_triggers: 166
• gateway_guard: v_birth_gateway_no_old_function_guard = PASS
• gateway_drift: v_birth_gateway_ssot_drift_detector = OK (fn_birth_registry_auto + fn_birth_registry_auto_id)
• danger_frozen: dot-birth-trigger-setup (DOT-119) + dot-birth-backfill (DOT-118) = 2/2 FROZEN_WRAPPER_INSTALLED
• drift_source: dot-birth-trigger-setup line 113 CREATE OR REPLACE FUNCTION fn_birth_registry_auto() (old logic, 0 coverage_status / 0 BIRTH_EXEMPT markers)
• inventory: 15 birth DOTs source-resolved, 0 UNKNOWN_BLOCKED; CRITICAL 1 / HIGH 1 / MEDIUM 1 (monitored) / safe 12
• qt_preservation: QT-002 LIVE_UNCHANGED; no QT worsened (RGT8 PASS)
• preflight: v_birth_global_preflight_no_go_guard = BLOCKED_UNTIL_STAGE_1_5 (stage0_guard PASS, drift OK)
• regression: v_birth_stage0_regression_guard = 10/10 ALL_PASS
• baseline: BIRTH_REQUIRED 74 / DEFERRED 58 / EXEMPT 36; identity unclassified 43; native status 54/74; missing trigger 2 (iu_staging_payload, iu_staging_record — no PG table); orphans 59; phantoms 289
• stage1_packet: knowledge/dev/architecture/BIRTH_STAGE1_GATEWAY_SSOT_IMPLEMENTATION_PACKET.md
• artifacts: /opt/incomex/docs/mcp-writes/birth-stage0-2026-06-06/ (01_apply_views.sql, 02_apply_regression_guard.sql, 99_rollback_views.sql, BIRTH_STAGE0_FREEZE_ROLLBACK.md)
• design_ssot: knowledge/dev/architecture/birth-gateway-ssot-qt001-repair-design-2026-06-06.md + BIRTH_GATEWAY_DESIGN_INDEX.md
• next_macro: BIRTH_STAGE1_GATEWAY_SSOT_IMPLEMENTATION
• blocker: none technical; onboarding/backfill intentionally BLOCKED until Stage 1-5
• gotchas: DDL via ssh contabo -> docker exec -i postgres psql; query_pg RO 5s/LIMIT500; CREATE VIEW does not bump tga (no new trigger); write_file -> /opt/incomex/docs/mcp-writes only; KB prose+tables (no fenced SQL); dot-collection-create degrades gracefully on frozen trigger-setup ([[ -x ]] + ||true)