dot-iu-cutter v0.4 — DOT-pair Signature Cross-reference Fix GPT Review

Date: 2026-05-17 Reviewer: GPT

Verdict

dot_pair_signature_cross_reference_fix: PASS
lane_overlap_prevention: PASS
commit: e93424b5ff7fa5e4b8406131977ce4339cd0856a
parent: db4aa58b50a95a8df2655073effde3a0ed0eede6
defects_found_in_report: false
tests: 140_of_140_PASS
pg_backed_dry_run_may_rerun: true
production_connection_allowed: false
production_secret_read_allowed: false
production_cut_verify_allowed: false
deploy_allowed: false

Accepted Fix

root_defect_fixed: dot_pair_signature_check_XOR_requires_exactly_one_cross_reference
DOT_991_executor_signature:
  cross_reference_change_set_id: required_non_null
  cross_reference_verify_result_id: required_null
DOT_992_verifier_signature:
  cross_reference_verify_result_id: required_non_null
  cross_reference_change_set_id: required_null
lane_mapping: centralized_in_schema_binding
lane_overlap_guard: LaneReferenceMismatch_prewrite_STOP
no_cross_lane_fallback: true
no_auto_repair: true
no_free_text_inference: true

Accepted Implementation Notes

schema_binding:
  - SIGNATURE_LANE_REFERENCE_KIND
  - signature_cross_reference
  - LaneReferenceMismatch
ledger:
  - write_signature_uses_central_lane_explicit_helper
  - new_id_public_alias
  - write_cut_change_set_accepts_pre_generated_id
  - write_verify_result_accepts_pre_generated_id
phases:
  - cut_pregenerates_change_set_id_and_threads_to_signature_and_artifact
  - verify_pregenerates_verify_result_id_and_threads_to_signature_and_artifact
row_count_change: false
r3_baseline: 15
principal_routing_change: false
db_adapter_change: false
signature_stub_semantics_change: reference_columns_only

Accepted Test Evidence

test_command: python3 -m unittest discover -s tests -v
test_result: 140_of_140_PASS
new_or_expanded_coverage:
  - DOT_991_change_set_only
  - DOT_992_verify_result_only
  - both_cross_refs_null_negative
  - both_cross_refs_non_null_negative
  - swapped_lane_negative
  - swapped_lane_write_rolls_back
  - r3_15_row_InMemory_probe
  - schema_binding_lane_mapping_tests

Git SSOT / Hardcode / Metadata-label Control

repo: /opt/incomex/dot
branch: main
scoped_commit: true
files_changed:
  - iu-cutter/cutter_agent/ledger.py
  - iu-cutter/cutter_agent/phases.py
  - iu-cutter/cutter_agent/schema_binding.py
  - iu-cutter/tests/test_phase_contracts.py
  - iu-cutter/tests/test_schema_binding_contract.py
  - iu-cutter/tests/test_dot_pair_signature_contract.py
git_add_A_used: false
unrelated_WIP_committed: false
iu_cutter_status_clean: true
no_DSN_password_IP_container_vector_literal: true
no_runtime_label_key_hardcoding: true
no_label_columns_added: true
no_label_registry_or_metadata_schema_change: true
SQL_SSOT_preserved: true
JSONB_not_hidden_authority: true
vector_NoSQL_untouched: true

Gate Effect

dot_pair_signature_cross_reference_fix: closed_PASS
next_allowed_phase: PG_backed_dry_run_rerun_3
use_code_commit: e93424b5ff7fa5e4b8406131977ce4339cd0856a
use_verification_plan: r3
expected_final_rows: 15
requires: explicit_execution_prompt

Still forbidden outside isolated dry-run:

forbidden:
  - adapter_connection_to_production_DB
  - production_secret_read
  - production_row_write
  - production_CUT_VERIFY
  - deploy_or_service_restart
  - code_change_or_commit_during_dry_run
  - label_or_metadata_schema_change
  - vector_or_NoSQL_integration

Additional Rerun Guard

The dry-run orchestrator must not be reused with a stale ACCEPTED pin. Before rerun, Agent must update the gitignored orchestrator execution artifact from the previous accepted commit to:

ACCEPTED: e93424b5ff7fa5e4b8406131977ce4339cd0856a

This is an execution artifact patch only, not an iu-cutter source change and not a git commit.

Status

ready_for_PG_backed_dry_run_rerun_3_prompt: true
agent_self_advance_without_prompt: prohibited