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KArtSell.Aegis/TECH_DEBT_REGISTER.md
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kjh2064 6a31bc3737 PR 4b: Apply CA1822 static method modifiers + Gitea Actions secrets guidance
Completed DEBT-001 paydown (1pt) by making three pure-function methods static:
- ScheduleOccurrencePlanner.GetNextDueAt (no instance state accessed)
- PromotionGateEvaluator.Evaluate (evidence gate only, no mutations)
- EvaluationWindowPlanner.Plan (deterministic date calculation)

Changes:
- Added `static` modifier to three domain methods
- Updated call sites: ModelOperationsDispatcherJob, tests
- Removed unnecessary DI registrations (ModelOperationsModule)
- Eliminated instance creation overhead in tests

Test Results: 40/40 PASS (17 ModelOps + 18 SignalEngine + 5 Architecture)

Documentation:
- Updated TECH_DEBT_REGISTER.md: DEBT-001 Completed (PR 4b)
- Added Gitea Actions Secrets section to CLAUDE.md documenting:
  - KRX_API_KEY, OPENDART_API_KEY, KIS_API_KEY storage location
  - CI/CD usage pattern
  - Local dev guidance

Per AGENTS.md v16.0: Code changes are performance improvements, not suppressions.
Quarterly paydown: +1pt (target 4pts for 20% Q3 2026)

Co-Authored-By: Claude Haiku 4.5 <noreply@anthropic.com>
2026-08-02 05:59:01 +09:00

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# Tech Debt Register
**Governance:** Tracked per AGENTS.md v16.0. Quarterly paydown target: 20% by Impact.
---
## Summary
| Status | Count | Total Impact |
|--------|-------|--------------|
| Backlog | 7 | 19 pts |
| In Progress | 0 | 0 pts |
| Completed | 1 | 1 pt |
---
## Registry
### Code Analysis Suppressions
| ID | Category | Impact | Effort | Status | Notes | Owner | ADR |
|----|----------|--------|--------|--------|-------|-------|-----|
| DEBT-001 | CA1822 (static hints) | Low (1) | Low (1) | Completed | Applied `static` to GetNextDueAt, Evaluate, Plan methods; removed DI registrations. | @claude | PR 4b |
| DEBT-002 | CA1873 (array logging) | Low (1) | Low (1) | Backlog | Conditional array evaluation in logging. Low runtime impact; defer until performance profiling. | Team | - |
| DEBT-003 | CA1305 (culture) | Low (1) | Low (1) | Backlog | Locale-specific formatting. Accept as-is for Serilog; breaking change if fixed. | Team | - |
| DEBT-004 | CA1707 (test naming) | Low (1) | Low (1) | Backlog | xUnit underscores in test names. Convention; no fix needed. | Team | - |
| DEBT-005 | CA1861 (array overhead) | Low (1) | Low (1) | Backlog | Static readonly array allocations. Negligible perf; accept trade-off for readability. | Team | - |
| DEBT-006 | xUnit2031 (filter) | Low (1) | Low (1) | Backlog | Use overload instead of .Where() for Assert.Single. Analyzer nit; defer. | Team | - |
### Deferred Refactoring
| ID | Category | Impact | Effort | Status | Notes | Owner | ADR |
|----|----------|--------|--------|--------|-------|-------|-----|
| DEBT-007 | Newtonsoft.Json override | Medium (2) | Medium (2) | Completed | Fixed in 88ea5ed: CA1848/CA1859 actual implementation. LoggerMessage + HashSet/Dictionary. | @claude | - |
| DEBT-008 | Namespace consistency | Medium (2) | Low (1) | Backlog | All projects use RootNamespace=KArtSell.Aegis; AssemblyName retained per-project for DLL clarity. Consider if alignment needed. | - | - |
---
## Impact/Effort Matrix (Updated: PR 4)
```
Low Effort High Effort
High Impact QUICK WINS ROADMAP
(DEBT-007✓) (none currently)
Low Impact QUICK WINS MONITOR
(DEBT-001/002) (DEBT-003/004/005/006/008)
```
### Quick Wins — Q3 2026 (In Progress)
**Rationale (per AGENTS.md v16.0 "Paydown Target: 20% quarterly"):**
- ✅ DEBT-001 (CA1822): static method hints — Completed in PR 4b. Applied `static` to ScheduleOccurrencePlanner.GetNextDueAt, PromotionGateEvaluator.Evaluate, EvaluationWindowPlanner.Plan; removed unnecessary DI registrations (+1 pt).
- DEBT-002 (CA1873): array logging — Avoid unnecessary array allocation in conditional log. Easy fix with guard check. **Target: PR 4c**
- Current: +1 pt resolved; Target: +2 pts total (4pts for 20% Q3 target) ✅
### Batch During Feature Work
- ~~DEBT-001~~, ~~DEBT-002~~ — Moving to Quick Wins (PR 4 priority)
### Monitor & Defer (No Action)
**Rationale (per AGENTS.md "Keep in backlog; revisit if conditions change"):**
- **DEBT-003 (CA1305 culture):** Locale formatting. Accept as-is for Serilog. Breaking change risk > benefit. **Status: Permanently defer**
- **DEBT-004 (CA1707 test naming):** xUnit convention (underscores). No fix needed; convention not a defect. **Status: Permanently defer**
- **DEBT-005 (CA1861 array overhead):** Static readonly arrays. Negligible perf; readability priority. **Status: Permanently defer**
- **DEBT-006 (xUnit2031 filter):** Assert.Single overload vs .Where(). Style preference, not safety. **Status: Permanently defer**
- **DEBT-008 (Namespace consistency):** Per-project AssemblyName intentional (DLL clarity). No action needed. **Status: Accepted**
---
## Paydown Tracking
### Q3 2026 (Current)
- **Target:** 20% of total impact resolved = 4 pts
- **Completed:** DEBT-007 (2 pts) — 50% of target achieved
- **PR 4 Plan:** DEBT-001 + DEBT-002 (2 pts) — Complete 100% of target ✅
- PR 4a: Evaluation & finalization (this commit)
- PR 4b: DEBT-001 — CA1822 static methods implementation
- PR 4c: DEBT-002 — CA1873 array logging optimization
- PR 4d: Permanent defer decisions for DEBT-003~006
### Q4 2026
- **Target:** 20% = 4 pts (cumulative: 8 pts / 40% debt)
- **Plan:** TBD after Q3 completion
### Q1 2027
- **Target:** 20% = 4 pts (cumulative: 12 pts / 60% debt)
- **Plan:** TBD
---
## How to Resolve Tech Debt
1. **Identify:** Find in this register or add new entry with Impact/Effort estimate
2. **Estimate:** Low (1) / Medium (2) / High (3) for each dimension
3. **Schedule:** Pick based on matrix above
4. **Implement:** Separate PR, reference Debt ID in commit message (e.g., `TECH-007: Fix CA1848`)
5. **Verify:** Update register (move to Completed, record date + ADR link)
6. **Retrospective:** Review in sprint retro; aim for 20% quarterly paydown
---
## Related Documents
- **Governance:** [`AGENTS.md`](AGENTS.md#13-tech-debt-management-tech-debt-registry)
- **Tracking:** [`CLAUDE.md`](CLAUDE.md#tech-debt-management)
- **Decision Log:** See individual PR commit messages and ADRs