dot-iu-cutter v0.1 — P0 Implementation Planning Report
dot-iu-cutter v0.1 — P0 Implementation Planning Report
Date: 2026-05-15 Status: IMPLEMENTATION PLANNING — REPORT (FINAL OF THIS PHASE) Scope: PLANNING ONLY. No code, no DDL, no SQL, no migration, no PG mutation, no execution. Master:
implementation-planning/dot-iu-cutter-v0.1-p0-implementation-planning-master-2026-05-15.md
1. Purpose
Final report for the Implementation Planning phase. Lists files created, summarizes planning decisions, classifies remaining blockers, and emits the explicit gate status for the next phase.
The expected stance — confirmed in this report — is that implementation execution must remain blocked after this phase, and the next gate is a Final Execution Readiness Review, not immediate execution.
2. Files Created in This Phase
All under knowledge/dev/laws/dieu44-trien-khai/implementation-planning/:
| # | Slug | Purpose | Revision |
|---|---|---|---|
| 1 | dot-iu-cutter-v0.1-p0-implementation-planning-master-2026-05-15.md |
Implementation planning phase master (scope, boundaries, lanes, gates, execution preconditions) | 1 |
| 2 | dot-iu-cutter-v0.1-p0-cross-cutting-resolution-plan-2026-05-15.md |
Resolution plan for 7 cross-cutting decisions (X-1, X-2, X-3, X-4, X-6, X-7, X-8) | 1 |
| 3 | dot-iu-cutter-v0.1-p0-migration-sequence-plan-2026-05-15.md |
Migration sequence plan for 6 P0 items (P0-5 → P0-1 → P0-2 → P0-6 → P0-3 → P0-4) | 1 |
| 4 | dot-iu-cutter-v0.1-p0-preflight-and-backup-plan-2026-05-15.md |
Preflight + backup + snapshot + dry-run + failure-stop requirements | 1 |
| 5 | dot-iu-cutter-v0.1-p0-rollback-test-plan-2026-05-15.md |
26-scenario matrix covering rollback / verify / signature surface (X-8 authoring) | 1 |
| 6 | dot-iu-cutter-v0.1-p0-canonicalization-rule-v0.1-planning-note-2026-05-15.md |
Prose plan for canonicalization_rule_v0.1 (X-7 authoring; Đ24 ratification pending) | 1 |
| 7 | dot-iu-cutter-v0.1-p0-operational-seat-naming-plan-2026-05-15.md |
G-1..G-5 placeholder plan; Đ37 dependency mapped | 1 |
| 8 | dot-iu-cutter-v0.1-p0-implementation-planning-report-2026-05-15.md |
this report | 1 |
Total: 8 files. No phase-prior file modified. No DDL/SQL/migration script written. No PG/Qdrant/Directus mutation. No execution.
3. Planning Decisions Made
3.1 Cross-cutting decisions (file 2)
| ID | Title | Selected approach | Blocks execution |
|---|---|---|---|
| X-1 | schema placement | new schema class cutter_governance; P0-1 stays in TAC |
yes |
| X-2 | primary ID form | uuid + human aliases | no |
| X-3 | JSONB validation policy | application-layer v0.1; PG jsonb_check FUTURE | no |
| X-4 | enum implementation | Đ24 lookup FK | yes |
| X-6 | dot_pair_signature polish | shared table + revocation lifecycle (revoked_at, revocation_reason, revoked_by, prior_signature_id) + exactly-one cross-reference rule | yes |
| X-7 | canonicalization rule prose | full prose Đ24-ratified before execution; planning prose authored in file 6 | yes |
| X-8 | rollback test plan | 26-scenario matrix authored in file 5; dry-run before execution | yes |
X-A (closed_with_notes earlier today): byte source_span + canonical_token drift + canonicalization rule v0.1 placeholder (NFC + LF + trim). No re-opening here.
3.2 Migration sequence (file 3)
Sequence accepted: P0-5 → P0-1 → P0-2 → P0-6 → P0-3 → P0-4.
Each step has documented preconditions, validation checks, rollback notes, and dependency checks before proceeding to the next step. No SQL / DDL written.
3.3 Preflight + backup + dry-run (file 4)
Specifications for: directus full backup, schema snapshot, row-count snapshot, dry-run environment, rollback verification prerequisite, failure-stop rule. None executed.
3.4 Rollback test plan (file 5)
26 scenarios covering rollback_key behavior, cut_change_set state transitions including invalid_drift, before_state_snapshot fidelity, verdict semantics (PASS/FAIL/NEEDS_HUMAN), dual-signature validation, revocation, exactly-one cross-reference rule, rollback failure recovery, signature timeouts, canonicalization rule consistency and immutability. None executed.
3.5 Canonicalization rule v0.1 prose plan (file 6)
Prose plan covers: scope (markdown source_kind v0.1), step ordering and idempotency, BOM handling, mixed line endings, trailing newline at file end, consecutive blank lines, canonical token boundary, byte-offset → token-position algorithm, per-source_kind extension policy. Đ24 full prose ratification remains pending.
3.6 Operational seat plan (file 7)
G-1..G-5 placeholders mapped with Đ37 dependency. No role created, no seat named, no Đ37 mutation. P0-execution-blocking subset: G-2 (signal channel), G-4 (DOT-pair + sign-offs), partial G-5 (PII boundary).
4. Unresolved Blockers Before Execution
Aggregated from all 7 lane files.
4.1 Cross-cutting closures pending
cross_cutting_pending:
- X-1 sign-off: Đ44 + Đ33/Đ43
- X-4 ratification: Đ24 per remaining enum set + lookup table population
- X-6 sign-off: G-4 Custodian + Đ44
- X-7 prose ratification: Đ24
- X-8 dry-run execution + sign-off: Đ32 (HIGH-risk path) + G-4
4.2 Operational seat naming pending (Đ37 dependency)
operational_seats_pending:
- G-2 Backlog Custodian (BLOCKER for signal routing)
- G-4 DOT-Pair Signing Authority (BLOCKER for DOT-pair registration + sign-offs)
- G-5 Access-Control Authority (PARTIAL BLOCKER for PII boundary)
- G-3 Capability-Intake Reviewer (SOFT BLOCKER; not for v0.1 execution)
- G-1 Threading Roles (NON-BLOCKER for P0; P2+ scope)
4.3 Infrastructure pending
infrastructure_pending:
- DOT-pair (executor + verifier) registered via G-4
- signing scheme v0.1 implementation
- signal routing for dot_pair_drift / signature_failure
- canonicalization rule library scaffolding (v0.1)
- directus full backup + restore test (per file 4)
- schema + row-count snapshots (per file 4)
- dry-run environment provisioned (per file 4)
- rollback test plan dry-run executed (per file 5)
4.4 Final review pending
final_review_pending:
- Final Execution Readiness Review (Đ32 HIGH-risk path + Đ44 + Đ37 + G-4 Custodian)
- explicit user prompt to authorize execution (separate prompt)
5. Implementation Execution Gate
implementation_execution_gate_status: closed
gate_open_condition:
ALL of the following must be true:
- planning package GPT-reviewed and PASSed
- all 7 cross-cutting closures (§4.1) completed
- all operational seats (§4.2) named per Đ37
- all infrastructure (§4.3) provisioned
- rollback test plan dry-run executed and signed off
- Final Execution Readiness Review signed
- explicit user prompt authorizing execution
gate_does_not_open_by_phase_completion: true
expected_next_phase: Final Execution Readiness Review (NOT immediate execution)
6. Explicit Status Flags
implementation_planning_phase: complete_pending_review
implementation_execution_allowed: false
code_written: false
ddl_written: false
sql_written: false
migration_executed: false
pg_mutation: false
qdrant_mutation: false
directus_mutation: false
data_writes: false
deploy: false
phase_prior_file_modified: false
migration_design_file_modified: false
risk_review_file_modified: false
ratification_file_modified: false
review_file_modified: false
7. Migration Sequence Summary (Compact)
| Step | P0 ID | Item(s) | Risk | Joint? |
|---|---|---|---|---|
| 1 | P0-5 | decision_backlog_entry (+ history, dependency, sweep_log) | Standard | — |
| 2 | P0-1 | canonical_address (+ alias) on tac_logical_unit | Standard | — |
| 3 | P0-2 | manifest_envelope + manifest_unit_block | Standard | Đ44 Step 1 joint |
| 4 | P0-6 | review_decision | Standard | — |
| 5 | P0-3 | cut_change_set + rollback_key + dot_pair_signature | HIGH | Đ44 Step 2 joint (with P0-4) |
| 6 | P0-4 | verify_result (shared dot_pair_signature) | HIGH | Đ44 Step 2 joint (with P0-3) |
sequence_decision: accepted per migration sequence plan §3
joint_pairs_preserved: true (P0-2 envelope+block; P0-3+P0-4 shared dot_pair_signature)
high_risk_steps_with_special_attention: [step 5, step 6]
8. Cross-Cutting Decisions Status (Compact)
| ID | Title | Status |
|---|---|---|
| X-A | source_span ↔ axis_1_drift_unit | closed_with_notes (ratified earlier today) |
| X-1 | schema placement | planning approach selected; sign-off pending Đ44 + Đ33/Đ43 |
| X-2 | primary ID form | planning approach selected (uuid + human aliases); no further ratification needed |
| X-3 | JSONB validation policy | planning approach selected (application-layer v0.1); no further ratification needed |
| X-4 | enum implementation | planning approach selected (Đ24 lookup FK); Đ24 per-enum-set ratification + lookup population pending |
| X-6 | dot_pair_signature polish | polish defined; G-4 sign-off pending |
| X-7 | canonicalization rule prose | planning prose authored; Đ24 full prose ratification pending |
| X-8 | rollback test plan | scenario matrix authored; dry-run execution + Đ32/G-4 sign-off pending |
9. Blockers Before Execution (Compact)
blockers_before_execution:
- X-1 sign-off (Đ44 + Đ33/Đ43)
- X-4 ratification + lookup population (Đ24)
- X-6 sign-off (G-4 + Đ44)
- X-7 prose ratification (Đ24)
- X-8 dry-run execution + sign-off (Đ32 + G-4)
- operational seats G-2, G-4, G-5 named (Đ37)
- DOT-pair registration (G-4)
- signing scheme v0.1 implementation
- signal routing wired (dot_pair_drift, signature_failure → G-2)
- canonicalization rule library scaffolding (v0.1)
- directus backup + restore test
- schema + row-count snapshots
- dry-run environment provisioned + rollback test plan dry-run executed
- Final Execution Readiness Review signed
- explicit user prompt authorizing execution
10. Recommended Next Steps (NOT executed by Agent)
- GPT review of this Implementation Planning Package (8 files).
- If PASS → Final Execution Readiness Review session authored as a separate phase, drawing inputs from the 7 lane files in this package.
- Đ24 ratification of canonicalization_rule_v0.1 full prose (separate ratification file).
- Đ24 lookup table population for all enum sets per X-4 (operational).
- Đ44 + Đ33/Đ43 sign-off of schema placement per X-1.
- G-4 sign-off of dot_pair_signature polish per X-6.
- Đ37 operational session naming G-2, G-4, G-5 (and optionally G-3, G-1) per operational seat plan.
- DOT-pair registration via G-4 (executor + verifier).
- Backup + snapshot + dry-run environment provisioning per preflight plan.
- Rollback test plan dry-run executed in dry-run environment per file 5.
- Final Execution Readiness Review signed off by Đ32 (HIGH-risk path) + Đ44 + Đ37 + G-4.
- Explicit user authorization to begin production execution (separate prompt).
- Only then: execution phase authoring of DDL/SQL/migration scripts and execution.
Each numbered step above is a separate phase or session, not part of this Implementation Planning package.
11. Explicit Confirmation — No Executable Artefacts Produced
no_code_written: true
no_ddl_written: true
no_sql_written: true
no_create_table_statements_written: true
no_alter_table_statements_written: true
no_column_ddl_written: true
no_index_ddl_written: true
no_constraint_ddl_written: true
no_trigger_function_or_rls_policy_written: true
no_cryptographic_scheme_specified: true
no_canonicalization_rule_executable_implementation: true
no_migration_script_written: true
no_migration_executable_produced: 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_signal_routing_wired: true
no_dot_pair_registered: true
no_seat_named: true
no_role_created: true
no_dieu37_mutation: true
no_implementation_planning_phase_prior_file_modified: true
no_risk_review_file_modified: true
no_ratification_file_modified: true
no_migration_design_file_modified: true
no_review_file_modified: true
output_form: implementation_planning_report_in_markdown_only
phase_complete: true
implementation_planning_allowed: true (this phase)
implementation_execution_allowed: false