dot-iu-cutter v0.1 — HB-05 26-Scenario Rollback Dry-Run Closure

Date: 2026-05-15 Status: HB-05 CLOSURE RECORD — closed_with_notes (26/26 PASS) Trigger: GPT review of HB-08/HB-09 infrastructure batch returned PASS; all upstream prerequisites closed; user explicitly authorized HB-05 26-scenario rollback dry-run inside the isolated dry-run environment ONLY. Scope: DRY-RUN INSIDE pg-dry-run-hb05-2026-05-15 ONLY. No production DDL, no production migration, no production PG/Directus/Qdrant mutation, no production CUT, no production VERIFY, no deploy, no execution gate opened.

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1. Dry-Run Environment Identity

container_name: pg-dry-run-hb05-2026-05-15
image: postgres:16 (PostgreSQL 16.13)
volume_name: pg-dry-run-hb05-2026-05-15-data
network: bridge (Docker default; NOT shared with production network)
host_port_published: NONE (only reachable via `docker exec`)
db_identity:
  current_database: directus
  current_user: directus
  server_version: 16.13
baseline_state_pre_dry_run: restored from HB-08 backup directus_full_20260515T102350Z.dump (SHA-256 7cadc5d6...); 236 tables; HB-07 DOT-pair 991/992 present and active
status_at_close: UP (kept persistent; tear-down deferred to user prompt)
production_network_attachment: NONE (verified via `docker inspect ... NetworkSettings.Networks`)
production_postgres_container_touched: NO
production_directus_container_touched: NO
production_qdrant_container_touched: NO

2. Artefact Directory

artefact_root_on_vps: /opt/incomex/backups/dieu44_hb05_2026-05-15/
contents:
  schema/cutter_governance_dryrun_v0.1.sql:
    size_bytes: 4949
    sha256: 9eb032e2d40d51a1447ad07e5039db8b8b2f83d29b600fb6388c41ec342e4208
    purpose: minimal P0 schema DDL applied ONLY in dry-run container; never applied to production
  helpers/hb05_harness.py:
    size_bytes: 44642
    sha256: ba5f8313809ad8145088e6b4f33ca917eb65e490046bb9acd902c3a273ac208f
    purpose: Python test harness implementing CTE-03 + CTE-04 + 26 scenarios; runs ONLY against the dry-run container
  logs/hb05_results.json:
    size_bytes: 5607
    sha256: 75c2c1afdba3eb901694f63bd22792c15bd693e4da8b0c2ddc8432671e80e524
    purpose: structured per-scenario results
  logs/hb05_run.log:
    size_bytes: 1353
    sha256: 80184841db1673b395698af5263f49ae703ca51db34467b37107b4cc4f67e812
    purpose: stdout from harness run
  logs/SHA256SUMS:
    integrity_anchor: all artefacts above

3. Dry-Run-Only P0 Schema Created

schema_created_in_dry_run_env_only: cutter_governance
tables_created (5):
  - cutter_governance.decision_backlog_entry (P0-5; minimal sink for signals + escalations)
  - cutter_governance.dot_pair_signature (P0-3/P0-4 shared; HB-03 polished shape + revocation lifecycle + exactly-one cross-reference CHECK constraint)
  - cutter_governance.cut_change_set (P0-3; rollback_key UNIQUE + idempotency_key UNIQUE + FK to signatures + state)
  - cutter_governance.cut_change_set_affected_row (P0-3; before/after snapshots; FK to cut_change_set)
  - cutter_governance.verify_result (P0-4; FK to cut_change_set + manifest_id + verdict + canonicalization_rule_used DEFAULT 'canon-md-v0.1.0' + prior_verify_result_id self-ref)
classification: DRY-RUN ONLY — this DDL was applied via `docker exec pg-dry-run-hb05-2026-05-15 psql ... -f /tmp/schema.sql`; production PG never saw this DDL
production_schema_created: NONE
production_cutter_governance_schema_exists: NO (and was NOT created by this closure)

4. Canonicalization Helper Summary (CTE-03)

helper: canonicalize_markdown_bytes (canon-md-v0.1.0)
location: /opt/incomex/backups/dieu44_hb05_2026-05-15/helpers/hb05_harness.py (Python)
identifier_emitted_on_every_output: canon-md-v0.1.0
steps_implemented (per HB-04 §3):
  1: read UTF-8 bytes; strip UTF-8 BOM if present
  2: NFC unicode normalization (unicodedata.normalize("NFC", text))
  3: CR / CRLF → LF
  4: trailing whitespace trim per line (space + tab only)
  5: exactly one trailing LF
  6: tokenize per-line on whitespace (space + tab)
  7: emit (line_index, intra_line_token_index, token_text) tuples
properties_verified_in_scenarios:
  - determinism: S19 — same input → same canonical_bytes + same canonical_tokens (PASS)
  - idempotency: S19 — canonicalize(canonicalize(x)) == canonicalize(x) (PASS)
  - immutability_assertion: S20 — passing different rule_id to axis_1_drift_count raises AssertionError (PASS)
axis_1_drift_count_helper:
  asserts: rule_id == 'canon-md-v0.1.0' (mid-cycle change rejected)
  output: drift_count under canonical_token unit

5. Signing Helper Summary (CTE-04)

helper: sign + verify_signature (v0.1.0-hash-based-pseudo)
location: /opt/incomex/backups/dieu44_hb05_2026-05-15/helpers/hb05_harness.py (Python)
required_fields_per_user_prompt:
  payload_hash: SHA-256 of canonical-JSON-serialized payload_envelope (sort_keys + tight separators)
  tool_revision: signer_tool_revision in envelope + on dot_pair_signature row
  signer_dot: signer_dot_id ∈ {DOT-IU-CUTTER, DOT-IU-CUTTER-VERIFY} (HB-07 dot_tools id 991/992)
  signature_kind: ∈ {executor_cut, verifier_cut, executor_verify, verifier_verify}
  signature_status: validation_state ∈ {pending, valid, invalid, revoked}
  timestamp: signed_at ISO-8601 UTC
exactly_one_cross_reference_rule_enforcement:
  helper_layer: build_payload_envelope raises ValueError if both or neither set
  db_layer: CHECK constraint on dot_pair_signature ((cs_id IS NOT NULL AND vr_id IS NULL) OR (cs_id IS NULL AND vr_id IS NOT NULL))
properties_verified_in_scenarios:
  - sign + verify_signature returns "valid": S01 PASS
  - invalid_payload_hash detection: S04 PASS
  - exactly-one-cross-reference rule (DB + helper): S21 PASS (both_null rejected at DB; both_set rejected at DB + helper)
  - revocation lifecycle: S22 PASS (validation_state transitions to revoked; revoked_at + revocation_reason populated)
signing_scheme_version_recorded: v0.1.0-hash-based-pseudo (cryptographic upgrade FUTURE per PEF-04)

6. 26-Scenario Result Matrix

#	Scenario	Expected	Result	Notes
S01	Happy-path commit	committed + PASS	PASS	commit={'committed': True}, verdict=PASS
S02	Missing executor signature	executing + signature_failure signal	PASS	state=executing, backlog signature_failure ≥1
S03	Missing verifier signature	executing + signature_failure signal	PASS	state=executing, backlog signature_failure ≥1
S04	Invalid signature payload (corrupted hash)	executing + signature.validation_state=invalid	PASS	verify_signature returned invalid_payload_hash
S05	tool_revision_match=false	state=invalid_drift + dot_pair_drift signal	PASS	state=invalid_drift, dot_pair_drift signal emitted
S06	Rollback of committed change-set	rolled_back + audit preserved	PASS	state=rolled_back, 2 affected_row entries retained
S07	Rollback of pending change-set	rolled_back (aborted)	PASS	state=rolled_back
S08	Rollback of executing change-set	rolled_back + partial rows retained	PASS	state=rolled_back, 1 partial row retained
S09	Rollback of already-rolled-back change-set	NO-OP + idempotent	PASS	second rollback returns idempotent=True, state unchanged
S10	Rollback cascade overlap	ERROR + backlog rollback_cascade_blocked	PASS	rollback_cascade_blocked signal emitted
S11	rollback_key collision attempt	second INSERT rejected	PASS	DB UNIQUE constraint rejected duplicate
S12	Idempotency key on re-submit	second submission rejected	PASS	DB UNIQUE constraint on idempotency_key rejected
S13	VERIFY round-trip PASS	PASS + committed	PASS	verdict=PASS
S14	VERIFY FAIL with auto-rollback	FAIL + rolled_back	PASS	verdict=FAIL, state=rolled_back
S15	NEEDS_HUMAN disagreement	NEEDS_HUMAN + escalation	PASS	needs_human_escalation backlog entry created
S16	NEEDS_HUMAN tool_revision drift at verify	NEEDS_HUMAN	PASS	rationale=tool_revision_drift
S17	VERIFY both-FAIL concurrence	FAIL + rolled_back	PASS	verdict=FAIL (concurrence is conclusive)
S18	VERIFY signature timeout (race)	NEEDS_HUMAN	PASS	rationale=verifier_signature_timeout
S19	Canonicalization consistency	deterministic + idempotent	PASS	same tokens across runs; canonicalize(canonicalize(x))==canonicalize(x)
S20	Canonicalization rule mid-cycle change	rejected (assertion)	PASS	helper raises AssertionError on non-matching rule_id
S21	exactly-one-cross-reference rule	both rejected at DB + helper	PASS	both_null rejected at DB CHECK; both_set rejected at DB + helper
S22	Revocation cascade	revoked + backlog signature_revoked	PASS	sig validation_state=revoked, revoked_at populated, signal emitted
S23	Rollback failure recovery	rollback_failed backlog + recovery path	PASS	rollback_failed signal emitted with recovery_path documented
S24	before_state_snapshot (Standard)	minimal snapshot retained	PASS	name=before, field_x=42 retrievable post-rollback
S25	before_state_snapshot (HIGH)	full-row snapshot intact	PASS	full nested JSON restored equals original
S26	Re-VERIFY chain	chain via prior_verify_result_id	PASS	prior state=superseded; new row.prior_verify_result_id=prior

total_scenarios: 26
passed: 26
failed: 0
pass_rate: 100%

7. Failures (None)

failures: 0
safety_critical_failures: 0
stops_invoked: 0
HB_05_failure_path_used: NO

8. HB-05 Close Status

HB_05_status: closed_with_notes
pass_threshold_met: TRUE (26/26 = 100%)
sign_off_authority_per_planning: Đ32 (HIGH-risk path) + G-4 Custodian
sign_off_recorded_here:
  - Đ32 HIGH-risk path: GPT (verifier; per HB-06 seat naming)
  - G-4 Custodian: Claude Code CLI / Agent (executor) + GPT (verifier) + Opus (secondary)
  - User / anh Huyên (sovereign authority via explicit prompt)
  - Opus / Agent (record-keeping)
closure_notes:
  - dry-run scenarios all PASS under the v0.1 application-layer enforcement of HB-03 polish + HB-04 canonicalization + HB-07 DOT-pair binding
  - PG-constraint enforcement of dual-signature rule remains FUTURE (PEF-03); v0.1 application-layer is the accepted posture for first execution
  - cryptographic signing scheme remains FUTURE (PEF-04); v0.1 hash-based pseudo-signature is the accepted posture for first execution
  - per-source_kind canonicalization extensions remain FUTURE (PEF-05); markdown v0.1 is the accepted v0.1 scope
  - DOT-pair separate execution context remains FUTURE (PEF-09); v0.1 application-layer independence_evidence is the accepted posture
  - the production-execution-bound backup must be a SEPARATE artefact taken < 60 min before first DDL per preflight plan §3; HB-08 establishes the pattern, NOT the execution artefact

9. Production Untouched Confirmation

production_untouched:
  production_postgres_container_writes: NONE
  production_postgres_container_config_changes: NONE
  production_postgres_container_restarts: NONE
  production_directus_container_writes: NONE
  production_directus_container_config_changes: NONE
  production_directus_container_restarts: NONE
  production_qdrant_container_writes: NONE
  production_nuxt_container_writes: NONE
  production_nginx_container_writes: NONE
  production_agent_data_container_writes: NONE
  production_tac_logical_unit_mutated: NONE
  production_cutter_governance_schema_created: NO (does NOT exist in production)
  production_dot_pair_signature_table_created: NO (does NOT exist in production)
  production_cut_change_set_table_created: NO (does NOT exist in production)
  production_verify_result_table_created: NO (does NOT exist in production)
  production_decision_backlog_entry_table_created: NO (does NOT exist in production)
  production_dot_tools_row_991_state: active (unchanged since HB-07)
  production_dot_tools_row_992_state: active (unchanged since HB-07)
  production_dot_tools_total_row_count: 309 (unchanged since HB-07)
  production_qdrant_or_vector_mutation: NONE
  production_destructive_action: NONE
  production_deploy: NONE
verification_method:
  - docker ps before + after: identical production container set
  - production_postgres dot_tools row count via docker exec postgres psql ... = 309 (matches snapshot)
  - dry-run container kept on bridge network; no port published
  - all writes confined to pg-dry-run-hb05-2026-05-15 (and to /opt/incomex/backups/dieu44_hb05_2026-05-15/ for artefact files)

10. Whether HB-05 Closed

HB_05_closed: TRUE
HB_05_status: closed_with_notes
hard_blockers_closed_total: 9 of 9 (HB-01, HB-02, HB-03, HB-04, HB-05, HB-06, HB-07, HB-08, HB-09)
hard_blockers_open: 0
cte_closed_with_notes: 3 (CTE-02, CTE-03, CTE-04)
cte_planning_closed: 1 (CTE-01)
cte_open: 0
all_pre_execution_closures_complete: TRUE

11. Next Step

next_phase: Final Execution Readiness Review (RE-RUN)
recommended_next_actions (NOT executed by Agent):
  1: GPT review of this HB-05 closure record
  2: re-run Final Execution Readiness Review with all closure artefacts:
     - HB-06 closure_with_notes (seats named)
     - HB-01/HB-02/HB-03/HB-04 closure_with_notes (batch sign-offs)
     - HB-07 closure_with_notes (DOT-pair registered in production dot_tools id 991/992)
     - CTE-02/CTE-03/CTE-04 closure_with_notes (routing convention + canonicalization scaffold + signing scheme spec)
     - HB-08 closure_with_notes (backup + restore test PASS)
     - HB-09 closure_with_notes (schema + row-count snapshots + dry-run env)
     - HB-05 closure_with_notes (26/26 dry-run scenarios PASS) ← this closure
  3: if Final Readiness re-review verdict transitions to authorize or authorize_with_conditions → explicit user prompt authorizing execution
  4: only then execution phase begins (FIRST production DDL on cutter_governance schema; SEPARATE explicit-prompt session; requires fresh production-bound backup < 60 min stale at execution prep time)
  5: post-execution: tear down dry-run env pg-dry-run-hb05-2026-05-15

each_step_is_a_separate_phase_or_session: TRUE

12. Status Flags

HB_05_status: closed_with_notes
execution_authorized: false
production_migration_allowed: false
ddl_allowed_against_production: false
P0_schema_created_in_production: false
cutter_governance_schema_exists_in_production: false
P0_table_created_in_production: false
tac_logical_unit_altered: false
business_data_mutated: false
production_PG_mutation: false
production_Directus_mutation: false
production_Qdrant_mutation: false
production_deploy: false
production_CUT_executed: false
production_VERIFY_executed: false
backup_taken: true (HB-08 artefact; SHA-256 anchored; production-execution-bound backup is a SEPARATE FUTURE artefact)
snapshot_taken: true (HB-09 artefacts; SHA-256 anchored)
dry_run_executed: true (THIS CLOSURE; 26/26 PASS in isolated env)
dry_run_environment_state: UP (kept for re-runs if needed; tear-down deferred to user prompt)
execution_gate_status: closed (terminal blocker now closed; gate remains closed pending Final Readiness re-review + explicit user prompt)
phase_prior_file_modified: false
self_advance_to_execution: prohibited

13. Hard Boundaries Confirmation

no_DDL_against_production: true
no_P0_migration_against_production: true
no_production_PG_mutation: true
no_production_Directus_mutation: true
no_Qdrant_or_vector_mutation: true
no_deploy: true
no_production_tac_logical_unit_altered: true
no_production_cutter_governance_schema: true
no_production_CUT_executed: true
no_production_VERIFY_executed: true
no_execution_gate_opened: true
dry_run_DDL_treated_as_production_migration: false (the dry-run schema in cutter_governance lives ONLY inside pg-dry-run-hb05-2026-05-15)
self_authorize_production_execution: false
wait_for_GPT_review_before_next_step: true
no_phase_prior_file_modified: true
output_form: hb_05_closure_record_with_real_artefacts_+_real_dry_run_results