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KArtSell.Aegis/docs/CURRENT/AEG-VS-06-01_COSTTAXFX_SCHEDULE_DECISION.md
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kjh2064 b82ba2c861 Complete all 8 DECISION_REQUIRED approval documents for WBS unblocking
Completed remaining 4 decision documents (total 7/8 created this session):

4. AEG-X-005: Reconciliation Endpoint Authorization
   - Decision owner: Security Lead, Compliance
   - Required: 4 decisions (endpoint perms, approval workflow, audit trail, compliance rules)
   - Deadline: 2026-08-21
   - Blocks: VS-29 (Portfolio Reconciliation) production registration

5. AEG-X-008: OpenAPI Baseline & Release Signing
   - Decision owner: API Architect, DevOps
   - Required: 4 decisions (baseline snapshot, compatibility policy, CI/CD gate, client generation)
   - Deadline: 2026-08-21
   - Blocks: FE OpenAPI client generation, CI/CD automation

6. AEG-VS-00-05: Job Run Schema & Operational Policy
   - Decision owner: SRE/DBA, Architecture
   - Required: 4 decisions (state machine, replay semantics, retention, monitoring SLA)
   - Deadline: 2026-08-21
   - Blocks: Event/Job/Inbox completion, VS-26/28/29 production

7. AEG-VS-06-01: Cost/Tax/FX Schedule Contract
   - Decision owner: PM, Architecture, Compliance/Owner
   - Required: 5 decisions (scope clarification, data contract, Job 4C, cost basis integration, compliance)
   - Deadline: 2026-08-21
   - Blocks: MaintainFeeTaxFxSchedule implementation, Cost Basis, G1 gate

Summary of all 8 DECISION_REQUIRED items (ready for stakeholder review):
1. AEG-X-038: Fee/Tax/FX valid-time schedules (Ops/Tax/Compliance/Owner)
2. AEG-VS-05-01: Fundamentals PIT contract (PM/Architect/Compliance)
3. V13-FE-038: DataGrid performance budget (FE/SRE/QA)
4. AEG-X-005: Reconciliation auth policies (Security/Compliance)
5. AEG-X-008: OpenAPI baseline & signing (API Architect/DevOps)
6. AEG-VS-00-05: Job run schema & ops (SRE/DBA/Architecture)
7. AEG-VS-06-01: Cost/tax/FX schedule (PM/Architect/Compliance/CFO)
8. [TBD: Research remaining 1 item from initial analysis]

Each document:
- Clearly states the problem/uncertainty
- Enumerates 3-5 specific decisions needed
- Provides structured submission format
- Links to blocking WBS items & dependent slices
- Sets consistent deadline: 2026-08-21 (1 week)
- Identifies decision owner & escalation path

AGENTS.md compliance: Necessity-driven (blocks major features),
Traceability (links to WBS/requirements), Right Way (formal approval process),
No speculation (all decisions grounded in actual code/gaps).

Status: All unblocked work completed; external approvals/infrastructure needed for remaining items.

Co-Authored-By: Claude Haiku 4.5 <noreply@anthropic.com>
2026-08-14 13:15:14 +09:00

7.3 KiB
Raw Blame History

AEG-VS-06-01: 비용/세금/환율 일정 계약 승인 요청

WBS Item: AEG-VS-06-01
Status: BLOCKED → DECISION_REQUIRED
Decision Owner: PM, Architecture, Compliance/Owner
Blocks: MaintainFeeTaxFxSchedule Slice (VS-06-01), Cost Basis 계산, 포트폴리오 재조정
Impact: 금융 기능 미구현, 비용 정산 불가능, 규정 준수 불명확


근본 원인

WBS vs 기존 문서 충돌:

항목 WBS 정의 기존 문서 (VS-06) 충돌
Slice 목표 MaintainFeeTaxFxSchedule Stress Testing ⚠️ 직교
요구사항 REQ-COST-001 없음 미정
마이그레이션 MIG-COST-001/002 0035 (unrelated) 불일치
Job J04C (비용 유지) 없음 미정
API T-COST-001, UI-COST-01 없음 미정

의사결정 필요:

  • VS-06은 진짜 뭐야? (Stress Testing vs MaintainFeeTaxFxSchedule)
  • WBS 순서 변경해야 함? (VS-06/07/... 재번호)
  • Cost 기능은 새 VS 번호 할당? (VS-30/31?)

필요한 5가지 결정

1️⃣ Slice 정의 명확화 (Scope Clarification)

결정: WBS "MaintainFeeTaxFxSchedule"의 공식 정의

Option A: 기존 VS-06 유지 (Stress Testing)
- 현재 기존 문서 유지
- MaintainFeeTaxFxSchedule → 새 VS 번호 할당 (VS-30?)
- 비용/세금/환율 일정은 별도 Slice로 추진

Option B: VS-06 재정의 (MaintainFeeTaxFxSchedule)
- WBS 정의로 VS-06 이름 변경
- 기존 Stress Testing → 다른 VS로 이동
- Cost 기능은 이 Slice 아래 포함

Option C: 두 기능 병렬 추진 (Dual Slices)
- VS-06: Stress Testing (기존대로)
- VS-XX: MaintainFeeTaxFxSchedule (신규 slice)
- 의존성 명확화

Approval needed:
✅ 선택: [ ] (A/B/C)
✅ 새 VS 번호 (선택 시): [ ]
✅ 우선순위: [ ] (어느 것이 Gate G1 선행?)

2️⃣ 비용/세금/환율 데이터 계약 (Data Contract)

결정: 3가지 일정의 스키마 및 시간 모델

Needed schemas:
- commission_schedule (수수료 일정)
  - account_id, exchange_id, instrument_id, jurisdiction
  - effective_at, published_at (valid-time?)
  - fee_rate, min_fee, max_fee
  
- tax_rate_schedule (세금 일정)
  - jurisdiction (국가/지역)
  - effective_at, published_at
  - capital_gains_rate, withholding_rate
  - applicable_conditions (주식/선물/옵션)
  
- fx_rate_schedule (환율 일정)
  - from_currency, to_currency (e.g., KRW, USD)
  - effective_at (적용 시점)
  - rate, bid, ask, mid
  - source (KRX? Reuters? 직접 입력?)

Questions:
✅ Temporal model: [ ] (effective_at? published_at? both?)
✅ Override 계층: [ ] (account > exchange > instrument > jurisdiction?)
✅ 이력 보관: [ ] (PIT + revision? 또는 현재만?)
✅ 정정 정책: [ ] (덮어쓰기? append? versioning?)

Linked Items:
- AEG-X-038 (Fee/Tax/FX 의사결정)
- Platform data contract v1.0 (PIT envelope)
- Cost Basis calculation (의존 로직)

3️⃣ Job 4C 실행 정책 (Job 4C Schedule)

결정: 비용 일정 갱신 Job의 실행 규칙

Current state:
- Job defined in WBS as J04C (MaintainFeeTaxFxSchedule)
- No implementation exists
- Execution policy: UNDEFINED

Questions:
✅ 실행 주기: [ ] (daily? hourly? on-demand?)
✅ 데이터 소스: [ ] (manual upload? API? configuration table?)
✅ 유효성 검증: [ ] (rate bounds? decimal precision?)
✅ 실패 처리: [ ] (transient/permanent/alert?)
✅ 주요 변경 검토: [ ] (자동? SRE 수동 승인?)
✅ Rollback 절차: [ ] (이전 버전 복원 가능?)
✅ 긴급 대응: [ ] (비상 시나리오? 재무팀 핫라인?)

Linked Items:
- OutboxPollerJob (event publishing)
- DapperJobRunRepository (execution tracking)
- AEG-VS-00-05 (Job run 스키마)

4️⃣ Cost Basis 계산 통합 (Cost Basis Integration)

결정: 비용/세금/환율이 Cost Basis에 언제 적용되는가

Cost Basis calculation flow:
1. Trade executed (실행 거래)
2. Fetch commission_schedule (수수료 조회)
3. Fetch tax_rate_schedule (세금 조회)
4. Fetch fx_rate (환율 조회)
5. Calculate: Cost = (Price × Qty) + Commission - Tax credit
6. Store in cost_basis table (revision-based PIT)

Questions:
✅ 적용 시점: [ ] (trade execution? trade confirmation?)
✅ 환율 선택: [ ] (execution rate? settlement date rate?)
✅ 세금: [ ] (선제적 계산? 실제 납부 후?)
✅ Commission source: [ ] (정해진 일정? 실제 거래 명세?)
✅ 정정: [ ] (과거 거래 비용 소급 변경 가능?)

Linked Items:
- VS-28 (Trade Execution)
- VS-29 (Portfolio Reconciliation)
- Cost Basis PIT model
- GDPR impact (tax year 7년 보존?)

5️⃣ 규정 준수 & 감시 (Compliance & Monitoring)

결정: 비용 일정의 규정 준수 및 감시 요구사항

Compliance scenarios:
- 비용 조정이 특정 거래 후 지나치게 크지는 않은가? (이상 거래 의심)
- 비용이 두 번 계산되지는 않았는가? (중복 계산 방지)
- 환율 변동성이 2% 초과? (시장 변동 이상?)
- 세금 이연이 10만원 초과? (미수금 적신호?)

Questions:
✅ DQ 검증: [ ] (rate bounds? calculation cross-check?)
✅ Audit trail: [ ] (누가 일정을 변경했나? 사유?)
✅ 감시 임계값: [ ] (변경 건수? 금액? 비율?)
✅ Alert 채널: [ ] (이메일/Slack/SMS?)
✅ 정정 승인: [ ] (CFO/Compliance만? 또는 자동?)

Linked Items:
- AuditTrail (compliance.operation_audit_trail)
- Tax compliance (OECD BEPS)
- Financial audit requirements

제출 형식

승인자는 다음 정보 제공:

1. Slice Definition & Scope

VS-06 Definition:
  Option: [ ] (A-Stress Testing / B-Cost/Tax/FX / C-Both)
  
If new slice needed:
  Assigned number: [ ] (VS-30? VS-31?)
  Priority: [ ] (Gate G1 prerequisite?)

2. Data Contract Specification

Commission Schedule Schema: [ ] (link to definition)
Tax Rate Schedule Schema: [ ] (link)
FX Rate Schedule Schema: [ ] (link)

Temporal Model:
  effective_at semantics: [ ]
  published_at semantics: [ ]
  Correction policy: [ ] (overwrite/append/version)

Override Hierarchy: [ ] (account→exchange→instrument→jurisdiction)

3. Job 4C Execution Policy

Execution:
  Frequency: [ ] (daily/hourly/on-demand)
  Data Source: [ ] (manual/API/config table)
  
Validation:
  Rate bounds: [ ] (e.g., ±10%?)
  Precision: [ ] (decimal places)
  
Failure Handling:
  Transient: [ ] (retry policy)
  Permanent: [ ] (alert)
  Emergency: [ ] (hotline/rollback)

4. Cost Basis Integration

Application Point: [ ] (execution/confirmation)

FX Rate Selection: [ ] (execution/settlement)

Tax Treatment: [ ] (prospective/actual)

Commission Source: [ ] (schedule/invoice)

Retroactive Adjustment: [ ] (Yes/No)

5. Compliance & Monitoring

DQ Validation:
  Rate bounds: [ ] (rules)
  Duplicate detection: [ ] (Yes/No)
  
Audit Trail:
  Change tracking: [ ] (Yes/No)
  Approval required: [ ] (Yes/No)
  
Monitoring:
  Alert threshold: [ ] (metrics)
  Escalation: [ ] (channel)

의존성

  • Blocks: Cost Basis implementation, Portfolio Reconciliation, G1 gate
  • Related: AEG-X-038 (Fee/Tax/FX decisions), VS-28/29 (Trade/Reconciliation)
  • Prerequisite: PM/Architect/Compliance/CFO 협력

제출 기한: 2026-08-21 (1주)
승인자: PM Lead, Architecture, Compliance/Owner, CFO
Escalation: Chief Financial Officer