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KArtSell.Aegis/TECH_DEBT_REGISTER.md
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kjh2064 26d1855365 PR 4d: Finalize permanent deferral decisions for DEBT-003~006 and DEBT-008
Governance: Updated TECH_DEBT_REGISTER.md per AGENTS.md v16.0 cost-benefit analysis.

Deferred Items (4 items, 4pts):
- DEBT-003 (CA1305): Locale formatting via Serilog. Breaking change risk exceeds benefit.
- DEBT-004 (CA1707): xUnit test naming convention (underscores). Not a defect, acceptable standard.
- DEBT-005 (CA1861): Static readonly array allocations. Negligible perf; readability priority.
- DEBT-006 (xUnit2031): Assert.Single overload nit. Style preference, not safety-critical.

Accepted (1 item, 2pts):
- DEBT-008 (Namespace consistency): Per-project AssemblyName intentional for DLL clarity. Trade-off accepted.

Registry Status Summary (post-PR 4):
- Completed: 1 (1pt) — DEBT-001 CA1822 static methods
- No Action: 1 (1pt) — DEBT-002 CA1873 already compliant
- Deferred: 4 (4pts) — DEBT-003/004/005/006 (revisit if conditions change)
- Accepted: 1 (2pt) — DEBT-008 (no action needed)
- Backlog: 0 (0pts)

Q3 2026 Paydown: 1pt resolved (DEBT-001). Target 4pts (20% of 20pt total).
Strategy: Small additional quick-wins from deferred items could reach 4pt target if needed.

All 40 tests PASS (17 ModelOps + 18 SignalEngine + 5 Architecture)

Co-Authored-By: Claude Haiku 4.5 <noreply@anthropic.com>
2026-08-02 06:03:02 +09:00

5.4 KiB

Tech Debt Register

Governance: Tracked per AGENTS.md v16.0. Quarterly paydown target: 20% by Impact.


Summary

Status Count Total Impact
Backlog 0 0 pts
In Progress 0 0 pts
Completed 1 1 pt
No Action 1 1 pt
Deferred 4 4 pts
Accepted 1 2 pts

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) No Action Already compliant: all logging uses LoggerMessage delegates. Verified PR 4b build with CA1873 enabled: 0 warnings. @claude Verified
DEBT-003 CA1305 (culture) Low (1) Low (1) Deferred Locale-specific formatting. Accept as-is for Serilog; breaking change if fixed. Revisit if conditions change. @claude PR 4d
DEBT-004 CA1707 (test naming) Low (1) Low (1) Deferred xUnit underscores in test names. Convention; no fix needed. Revisit if conditions change. @claude PR 4d
DEBT-005 CA1861 (array overhead) Low (1) Low (1) Deferred Static readonly array allocations. Negligible perf; accept trade-off for readability. Revisit if conditions change. @claude PR 4d
DEBT-006 xUnit2031 (filter) Low (1) Low (1) Deferred Use overload instead of .Where() for Assert.Single. Analyzer nit; defer. Revisit if conditions change. @claude PR 4d

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) Accepted All projects use RootNamespace=KArtSell.Aegis; AssemblyName retained per-project for DLL clarity. Trade-off accepted: DLL clarity > namespace alignment. No action. @claude PR 4d

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 (Completed)

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 — Already compliant: all logging uses LoggerMessage delegates. Verified in PR 4b build with CA1873 enabled: 0 warnings. No action needed (+0 pts, marked "No Action").
  • Result: +1 pt resolved (25% of 4pt target). Target rate achievable by completing additional small-effort items from remaining backlog.

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

  • Governance: AGENTS.md
  • Tracking: CLAUDE.md
  • Decision Log: See individual PR commit messages and ADRs