dot-iu-cutter v0.1 — P0 Final Execution Readiness Review

Date: 2026-05-15 Status: FINAL EXECUTION READINESS REVIEW — ACTIVE (REVIEW ONLY) Trigger: GPT review of Implementation Planning Package returned PASS (2026-05-15). User has explicitly authorized opening the Final Execution Readiness Review phase. Scope: READINESS REVIEW ONLY. No code, no DDL, no SQL, no migration, no PG mutation, no Qdrant/vector mutation, no Directus mutation, no data write, no backup execution, no dry-run execution, no deploy.

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1. Purpose

Determine whether dot-iu-cutter v0.1 P0 migration execution can be authorized. The review checks every required sign-off, the state of each cross-cutting closure, the operational-seat naming, DOT-pair registration, and preflight artefacts. The review emits one of three recommendations:

• authorize — every hard blocker is demonstrably closed; execution may begin upon explicit user authorization.
• authorize_with_conditions — every hard blocker is closed; some condition-to-execute items remain but can be discharged during the execution window itself; execution still requires an explicit user prompt.
• do_not_authorize — at least one hard blocker remains open; execution must not be authorized.

The expected stance, restated from the user's instructions: unless every hard blocker is demonstrably closed, recommend do_not_authorize_execution_yet or authorize_with_conditions_but_execution_still_requires_explicit_prompt.

2. Source Inputs

• reviews/dot-iu-cutter-v0.1-p0-implementation-planning-package-gpt-review-2026-05-15.md
• implementation-planning/dot-iu-cutter-v0.1-p0-implementation-planning-report-2026-05-15.md
• implementation-planning/dot-iu-cutter-v0.1-p0-cross-cutting-resolution-plan-2026-05-15.md
• implementation-planning/dot-iu-cutter-v0.1-p0-preflight-and-backup-plan-2026-05-15.md
• implementation-planning/dot-iu-cutter-v0.1-p0-rollback-test-plan-2026-05-15.md
• implementation-planning/dot-iu-cutter-v0.1-p0-canonicalization-rule-v0.1-planning-note-2026-05-15.md
• implementation-planning/dot-iu-cutter-v0.1-p0-operational-seat-naming-plan-2026-05-15.md

3. Readiness Checklist (Required Sign-Offs)

Each row records: required sign-off, current status, observed evidence, gap, owner.

3.1 X-1 — Schema placement sign-off

check_id: chk_X_1
required_sign_off: Đ44 family registry custodian + Đ33/Đ43 schema authority approve `cutter_governance` schema class membership (manifest, cut, verify, review, decision_backlog families)
planning_recorded_choice: new schema class `cutter_governance` for governance/manifest family; P0-1 canonical_address stays on TAC schema (per cross-cutting resolution plan §4)
current_status: NOT_SIGNED
evidence_observed:
  - planning approach selected and documented
  - no Đ44 / Đ33 / Đ43 sign-off file recorded under ratification/
gap: sign-off artefact missing
owner: Đ44 family registry custodian + Đ33/Đ43 schema authority
recommended_resolution: separate ratification session producing a sign-off file under ratification/
blocks_first_ddl_or_migration: yes (schema must exist before any table creation)
classification: hard_blocker

3.2 X-4 — Đ24 lookup FK readiness / ratification

check_id: chk_X_4
required_sign_off: Đ24 vocabulary owner ratifies each P0 enum set AND Đ24 lookup tables populated
planning_recorded_choice: Đ24 lookup FK for all enums (per cross-cutting resolution plan §7)
current_status: PARTIALLY_RATIFIED
evidence_observed:
  - section_type / unit_kind / body_source_policy / collision_status / risk_class / authority already Đ24 Step 1 ratified_with_notes
  - signature_failure / sweep_overdue / dot_pair_drift event-kind subset already Đ24 Step 1 ratified_with_notes
  - axis_1_drift_unit value canonical_token ratified via X-A (closed_with_notes)
  - other enum sets not yet ratified: cut_change_set.state extension (`invalid_drift`), operation_kind, target_table, signature_kind, validation_state, verify_kind, axis_1_status, axis_2_status, verdict (PASS/FAIL/NEEDS_HUMAN), state (verify_result), reviewer_kind
  - no lookup table populated anywhere yet
gap: outstanding Đ24 ratifications + zero lookup-table population
owner: Đ24 vocab owner (+ Đ44 family registry custodian for cross-family confirmation)
recommended_resolution: Đ24 ratification of remaining enum sets + lookup-table population operational task (separate operational session)
blocks_first_ddl_or_migration: yes (every P0 step references at least one of these enum sets via FK)
classification: hard_blocker

3.3 X-6 — dot_pair_signature shape sign-off

check_id: chk_X_6
required_sign_off: G-4 DOT Registry Custodian + Đ44 family registry custodian sign off on the shared `dot_pair_signature` shape + revocation lifecycle additions + exactly-one cross-reference rule (per cross-cutting resolution plan §8)
current_status: NOT_SIGNED
evidence_observed:
  - polish proposed and documented in planning
  - no sign-off file recorded under ratification/
gap: G-4 sign-off requires G-4 seat to be named first
owner: G-4 DOT Registry Custodian + Đ44
recommended_resolution: Đ37 names G-4 seat → G-4 sign-off recorded as ratification artefact
blocks_first_ddl_or_migration: yes for Step 5 (P0-3) — `dot_pair_signature` is created in Step 5
classification: hard_blocker

3.4 X-7 — Canonicalization rule prose ratification

check_id: chk_X_7
required_sign_off: Đ24 vocabulary owner ratifies full canonicalization_rule_v0.1 prose (BOM, mixed line endings, trailing newline, consecutive blank lines, canonical_token boundary, byte→token mapping algorithm, per-source_kind extension policy)
planning_recorded_choice: prose plan authored in canonicalization rule planning note (file 6); placeholder NFC + LF + trim ratified at X-A
current_status: NOT_RATIFIED (only X-A placeholder is bound)
evidence_observed:
  - placeholder ratified at X-A 2026-05-15 (closed_with_notes)
  - full prose plan authored in implementation-planning canonicalization rule planning note
  - no Đ24 full-prose ratification file recorded under ratification/
gap: Đ24 full-prose ratification missing
owner: Đ24 vocab owner (+ Đ44 family ratifier)
recommended_resolution: separate Đ24 ratification session producing a ratification file binding the identifier (e.g., `canon-md-v0.1.0`) + prose
blocks_first_ddl_or_migration: yes for Step 6 (P0-4) — verify_result.canonicalization_rule_used must reference a Đ24-ratified rule identifier
classification: hard_blocker

3.5 X-8 — Rollback test plan sign-off

check_id: chk_X_8
required_sign_off: Đ32 (HIGH-risk path) + G-4 DOT Registry Custodian sign off AFTER the 26-scenario synthetic-data dry-run is executed and all scenarios pass
planning_recorded_choice: scenario matrix authored (rollback test plan §4); dry-run executed in dry-run environment before any production CUT
current_status: NOT_EXECUTED_AND_NOT_SIGNED
evidence_observed:
  - scenario matrix authored (26 scenarios)
  - no dry-run environment provisioned
  - no scenarios executed
  - no Đ32 / G-4 sign-off
gap: dry-run environment + execution + sign-off all missing
owner: Đ32 (HIGH-risk path) + G-4 Custodian
recommended_resolution: provision dry-run environment per preflight plan §6 → execute 26-scenario matrix → Đ32 + G-4 sign-off
blocks_first_ddl_or_migration: yes — dry-run-before-real-cut is a required precondition per cross-cutting resolution plan §10 (X-8) and per joint review §5.6
dry_run_required_before_real_execution: TRUE (explicit requirement)
classification: hard_blocker

3.6 Operational seats

check_id: chk_operational_seats
required_sign_off: Đ37 operational session names G-1..G-5 per operational seat plan
planning_recorded_choice: G-1..G-5 placeholders mapped to roles; Đ37 dependency explicit (per operational seat plan §7)
current_status: NOT_NAMED (all 5 seats are placeholders)
per_seat_status:
  G_1_threading_roles:
    status: placeholder
    blocker_classification_for_p0: NON-BLOCKER (P2+ scope; council reviews not in P0)
  G_2_backlog_custodian:
    status: placeholder
    blocker_classification_for_p0: HARD BLOCKER (signal channel ownership required from Step 1 onward; signature_failure / dot_pair_drift / rollback_failed / migration_step_failed routes here)
  G_3_capability_intake_reviewer:
    status: placeholder
    blocker_classification_for_p0: SOFT BLOCKER (only blocks FUTURE capability acceptance; not v0.1 execution)
  G_4_dot_pair_signing_authority:
    status: placeholder
    blocker_classification_for_p0: HARD BLOCKER (registers DOT-pair; signs off X-6, X-8, rollback test plan; required for Steps 5 + 6)
  G_5_access_control_authority:
    status: placeholder
    blocker_classification_for_p0: PARTIAL BLOCKER (PII boundary for reviewer_identity, owner_seat); v0.1 acceptable if role-seat identifiers used and natural-person mapping deferred; G-5 named is required if access-control surface is touched (per the question this section asks)
access_control_surface_touched_in_p0:
  - review_decision.reviewer_identity (P0-6) — role-seat identifier acceptable v0.1 per X-A-style placeholder reasoning
  - decision_backlog_entry.owner_seat (P0-5) — role-seat identifier acceptable
  - markdown mirror generator scope (P0-5) — implementation FUTURE; out of P0 execution scope
verdict_on_access_control:
  - PII boundary policy MUST be at least documented (role-seat identifiers in use)
  - G-5 seat naming is REQUIRED before any production reviewer_identity / owner_seat row is written
  - therefore G-5 is a HARD BLOCKER for any P0 step that writes those identifiers — i.e., from Step 1 (P0-5) onward
owner: Đ37
recommended_resolution: Đ37 operational session names at least G-2, G-4, G-5 before execution; G-3 optional; G-1 not required for P0
blocks_first_ddl_or_migration: yes for G-2 / G-4 / G-5 (G-3, G-1 do not block)
classification: hard_blocker (for the subset G-2, G-4, G-5)

3.7 DOT-pair registration

check_id: chk_dot_pair_registration
required_sign_off: G-4 DOT Registry Custodian registers `dot-iu-cutter` (executor) and `dot-iu-cutter-verify` (verifier) AND wires `tool_revision` drift handling
current_status: NOT_REGISTERED
evidence_observed:
  - planning artefacts describe DOT-pair binding (per P0-3 §7 + G-4 closure)
  - no registry entry recorded
  - tool_revision drift policy declared (state=invalid_drift on mismatch + dot_pair_drift signal) but no signal channel wired yet (depends on G-2)
gap:
  - executor DOT not registered
  - verifier DOT not registered
  - tool_revision drift signal channel not wired
owner: G-4 DOT Registry Custodian (requires G-4 seat named first)
recommended_resolution: post G-4 seat naming → G-4 performs DOT registration + wires drift handling
blocks_first_ddl_or_migration: yes for Step 5 (P0-3) and Step 6 (P0-4); for earlier steps, the drift channel must at least be wired so any signal observed (synthetic or real) reaches G-2
classification: hard_blocker (Steps 5/6); signal-channel wiring is hard blocker from Step 1 onward

3.8 Preflight

check_id: chk_preflight
required_artefacts:
  directus_backup:
    requirement: full PG backup of Directus DB, < 60 min old at execution start, with restore test passed
    current_status: NOT_TAKEN
    blocking: yes (cannot start migration without a verified backup)
  schema_snapshot:
    requirement: pg_dump --schema-only of all affected schemas, taken alongside the backup
    current_status: NOT_TAKEN
    blocking: yes
  row_count_snapshot:
    requirement: per-table row count for all affected schemas at backup time
    current_status: NOT_TAKEN
    blocking: yes
  dry_run_environment:
    requirement: separate environment (PG instance or isolated schema) for the 26-scenario rollback test plan and a full end-to-end migration sequence dry-run
    current_status: NOT_PROVISIONED
    blocking: yes for HIGH-risk Steps 5 + 6; STRONGLY RECOMMENDED for Steps 1–4
  failure_stop_rule:
    requirement: documented (planning level)
    current_status: DOCUMENTED (per preflight plan §8); no execution-time enforcement yet
    blocking: no for review purposes; will need enforcement at execution time
owner: G-4 Custodian + operational DBA (assigned via Đ37) + G-2 (records snapshot artefacts)
recommended_resolution: per preflight plan §9 checklist — all items must move from `pending` to `complete` before execution
blocks_first_ddl_or_migration: yes for all preflight requirements (backup / snapshots / dry-run / restore test)
classification: hard_blocker

3.9 Execution boundary

check_id: chk_execution_boundary
question: has any execution happened?
answer: NO
evidence:
  - no code written across all 21 artefacts of this lineage (8 migration-design + 5 risk-review + 1 X-A ratification + 8 implementation-planning files)
  - no DDL written
  - no SQL written
  - no migration script produced
  - no PG mutation
  - no Qdrant/vector mutation
  - no Directus mutation
  - no data write
  - no backup taken (planning level only)
  - no dry-run executed (scenario matrix authored, but no execution)
  - no signature generated (signing scheme not implemented)
  - no DOT-pair registered
  - no role created (per Đ37 boundary)
  - no operational seat named
status_at_this_review_point: execution boundary INTACT
question: does execution remain blocked until GPT/User explicitly authorizes?
answer: YES (per implementation planning report §5 + this review §4)

4. Aggregated Status of Required Sign-Offs

ID	Check	Status	Classification
chk_X_1	schema placement (Đ44 + Đ33/Đ43)	NOT_SIGNED	hard_blocker
chk_X_4	enum FK (Đ24 ratification + lookup population)	PARTIALLY_RATIFIED	hard_blocker
chk_X_6	dot_pair_signature shape (G-4 + Đ44)	NOT_SIGNED	hard_blocker
chk_X_7	canonicalization rule prose (Đ24)	NOT_RATIFIED (placeholder only)	hard_blocker
chk_X_8	rollback test plan dry-run + sign-off (Đ32 + G-4)	NOT_EXECUTED_AND_NOT_SIGNED	hard_blocker
chk_operational_seats	Đ37 names G-2, G-4, G-5 (and optionally G-3, G-1)	NOT_NAMED	hard_blocker (subset)
chk_dot_pair_registration	G-4 registers DOT-pair + wires drift	NOT_REGISTERED	hard_blocker
chk_preflight	backup / snapshot / dry-run env / restore test	NOT_TAKEN / NOT_PROVISIONED	hard_blocker
chk_execution_boundary	no execution has happened	INTACT	not a blocker; positive confirmation

total_checks: 9
hard_blockers_open: 8
soft_or_partial_blockers: G-3, G-1 (separate; covered under chk_operational_seats)
checks_with_observed_positive_state: 1 (execution boundary intact)

5. Blocker Classification

Brief here; full register lives in dot-iu-cutter-v0.1-p0-final-readiness-blocker-register-2026-05-15.md.

hard_blockers:
  - X-1 sign-off
  - X-4 outstanding Đ24 ratifications + lookup table population
  - X-6 G-4 + Đ44 sign-off (blocked by G-4 seat naming)
  - X-7 Đ24 prose ratification
  - X-8 dry-run execution + Đ32 + G-4 sign-off
  - operational seats G-2, G-4, G-5 named (Đ37)
  - DOT-pair registration (G-4)
  - directus backup + restore test
  - schema + row-count snapshots
  - dry-run environment provisioned

conditions_to_execute (must be true AT execution time but may be discharged in the execution window):
  - failure-stop rule actively enforced
  - signal routing for dot_pair_drift / signature_failure live (wired) to G-2 channel
  - canonicalization rule library scaffolding present (v0.1 placeholder acceptable)
  - signing scheme v0.1 implementation present (hash-based pseudo-signature)

post_execution_follow_ups (do not block first execution):
  - canonical_address NOT NULL constraint enabled post-backfill (P0-1 §9 item 10)
  - axis-2 advisory elevation review (D4 capability intake) — FUTURE
  - cryptographic signing scheme upgrade — FUTURE
  - PG-constraint enforcement of dual-signature rule — FUTURE
  - per-source_kind canonicalization extensions (ast_node / byte) — FUTURE
  - markdown mirror generator implementation — FUTURE

6. Whether Execution Can Be Authorized

hard_blockers_open: 8
demonstrably_closed_hard_blockers: 0
execution_authorization_decision: cannot_authorize
reason: not every hard blocker is demonstrably closed

Per the expected stance: "unless every hard blocker is demonstrably closed, recommend do_not_authorize_execution_yet or authorize_with_conditions_but_execution_still_requires_explicit_prompt."

Eight hard blockers remain open. None of them is in a state where the closure work can be safely deferred into the execution window — they are all upstream artefacts (sign-offs, ratifications, registrations, backups) that must precede the first DDL.

7. Explicit Recommendation

recommendation: do_not_authorize
rationale:
  - 8 hard blockers remain open (per §4)
  - none can be safely discharged inside the execution window — every one of them is a precondition that must be observed BEFORE the first DDL
  - the rollback test plan dry-run alone is binding: cross-cutting resolution plan §10 explicitly requires dry-run-before-real-cut
  - operational seat naming (G-2 / G-4 / G-5) is Đ37 authority and outside this Agent's surface
  - DOT-pair registration depends on G-4 seat naming, so it cascades from chk_operational_seats
  - canonicalization rule v0.1 prose ratification (X-7) is required so verify_result.canonicalization_rule_used can reference a real Đ24-ratified identifier
  - schema placement sign-off (X-1) is required so the cutter_governance schema exists at execution time
  - Đ24 lookup tables for enum sets (X-4) must be populated so FK references resolve in Step 1 onward
  - directus backup + restore test (preflight) is required so failure roll-forward is recoverable
do_not_authorize_execution_yet: true
next_required_actions: per blocker register
explicit_prompt_required_to_proceed_after_closure: true (a separate authorization prompt is still required even after every hard blocker closes)

8. Confirmation — No Execution Has Happened in This Review

no_code_written: true
no_ddl_written: true
no_sql_written: true
no_migration_script_written: true
no_migration_executed: true
no_pg_mutation: true
no_qdrant_mutation: true
no_directus_mutation: true
no_data_writes: true
no_backup_taken: true
no_snapshot_taken: true
no_dry_run_executed: true
no_signature_generated: true
no_dot_pair_registered: true
no_seat_named: true
no_role_created: true
no_dieu37_mutation: true
no_phase_prior_file_modified: true
output_form: final_execution_readiness_review_documentation_only

9. Status

final_readiness_review_status: COMPLETE (pending GPT review)
execution_authorized: false
recommendation_emitted: do_not_authorize
hard_blockers_open: 8
blocker_register_file: dot-iu-cutter-v0.1-p0-final-readiness-blocker-register-2026-05-15.md
final_readiness_report_file: dot-iu-cutter-v0.1-p0-final-readiness-report-2026-05-15.md
next_phase_gate: closure of all hard blockers + GPT review of this readiness package + explicit user prompt