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記錄和追蹤技術債，幫忙估算修復時間。Template based，系統化追蹤優先級、修復成本、業務影響。
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| name | tech-debt-register |
| description | 記錄和追蹤技術債，幫忙估算修復時間。Template based，系統化追蹤優先級、修復成本、業務影響。 |
| trigger | tech debt / 技術債 / 技術負債 / debt register |
| version | 1 |
| category | productivity |
系統化記錄、優先級排序、和規劃償還技術債。
# Tech Debt Register — {project_name}
> **Source:** <review date> code review (Security A + Architecture B + Ship Gate C)
> by Developer. Each entry has: where, why, severity, estimated cost,
> and the P0/P1/P2 priority assigned by red-line 10 + business risk.
> **Update this file when a finding is fixed, deferred, or re-prioritised.**
---
## 0. Headline
| Severity | Count | Ship-blocking? |
|----------|-------|----------------|
| 🔴 **P0** (critical, blocks ship) | <N> | Yes |
| 🟠 **P1** (high, must fix this sprint) | <N> | No (but should) |
| 🟡 **P2** (medium, backlog) | <N> | No |
**Target:** all P0 done before next prod ship. P1 in this sprint. P2
maintained as a known backlog.
---
## P0 — Ship blockers (must fix before next deploy)
### P0-N — <one-line title>
- **Where:** `<file>:<line>` (single file) or `<file>` (cross-file)
- **Why:** <technical reason — what goes wrong, what an attacker can do>
- **Fix:** <exact code change with example snippet>
- **Est:** <S / M / L / XL>
- **Linked:** <red-line numbers> / <related RG-XXX> / <related ADR-NNNN>
### P0-1 — 示例: Self-registration allows picking `role: 'ADMIN'`
- **Where:** `apps/api/src/routes/auth.ts:69-105`
- **Why:** `POST /auth/register` has no `.use(authContext)` or
`.use(requirePermission('user:create'))`. Body schema accepts
`role: t.Union([ADMIN, SALES, VIEWER])` from the client. Anyone on the
public internet can self-register as admin in one request.
- **Fix:** Add `requirePermission('user:create')` and drop the `role`
field from the body schema; new users default to SALES. Admins promote
via the existing `PATCH /users/:id` flow.
- **Est:** 1 hour
- **Linked:** red-lines 3/5/7 (security; implicit in red-line 11).
---
## P1 — High (this sprint, after P0)
### P1-N — <one-line title>
- **Where:** `<file>` (or list of files)
- **Why:** <technical reason>
- **Fix:** <proposed solution>
- **Est:** <S / M / L / XL>
- **Linked:** <related entries>
---
## P2 — Medium backlog (sprint +1 or later)
### P2-N — <one-line title>
- **Where:** `<file>`
- **Why:** <reason>
- **Fix:** <approach>
- **Est:** <S / M / L / XL>
---
## Cross-references
- **Red-line 10** (`docs/project-documentation-standard.md`): this file
is the project-documentation standard's `TECH-DEBT.md` requirement.
- **Red-line 11** (`docs/qa-tracker.md`): QA-TRACKER.md is the per-US
status; this file is the cross-cutting tech debt (architecture +
security + ops). Different concern, both required.
- **Red-line 13** (`skills/regression-guard/`): each bug fix gets an
RG-XXX entry; tech debt items are pre-existing structural issues
and don't get RG- entries unless they have already caused a bug.
- **Red-line 16/17/18** (testing + smoke + CVE): tracked in
`docs/qa-gate.md` and `docs/TEST-COVERAGE.md`.
---
## How to update this file
1. **New finding** discovered → append a new `### P?-N` block with
location, why, fix, est, linked entries.
2. **Finding fixed** → append a `✅ Fixed in <commit>` (or
`✅ PARTIAL — <what's done> / <what's deferred> / <linked follow-up>`)
row to the existing entry. **Do not move to an archive section.**
The crm-system (2026-06-08) convention is to keep the original
P?-N entry in place and stack status updates on it, so a
future reader can see the full history (where, why, fix, est)
in one block. An archive section splits this across the doc
and makes "what was the original severity" hard to recover.
3. **Finding re-prioritised** → update severity, note why in the
entry body.
4. **Finding deferred** → add a `⏸ Deferred: <reason>` tag. Don't
delete — keep the historical record.
### Status row format (preferred by crm-system 2026-06-08)
```markdown
- **Status (YYYY-MM-DD):** ✅ Fixed in commit <sha> — <one-line summary>
- **Status (YYYY-MM-DD):** ✅ PARTIAL — <what's done> / <what remains>
(file to follow-up: <US-NNN>)
Why append-in-place, not archive-move: A TECH-DEBT.md entry gains value over time (status trail, follow-up links, PARTIAL markers). Moving it to archive makes the original "where / why / fix / est" 4 fields harder to find when an auditor asks "why is this here" — the file becomes a graveyard of fixed items instead of a living registry. The "Archive" section in the original template is preserved in the Legacy section below for projects that prefer that convention.
## 何時用呢個 5-field format vs 簡單 table
| Format | 適合 |
|--------|------|
| **5-field 細 entry**(本 skill 推薦 default) | 25+ finding 嘅 comprehensive review、security audit、需要交 dev 跟嘅項目、需要 est 嘅 sprint planning |
| **簡單 table**(`TD-001` 格式) | 5 個以下 finding、quick backlog、admin 唔需要 deep context |
| **Env-only fix**(env-bootstrap problem 變體)| host 跑 test 撞 fail / missing binary / container 內 OK 但 host 唔得 — 用 5-field 但 **影響拆三段**(dev friction / ship / prod),因為 env 問題對呢三層嘅影響係 independent |
**Rule of thumb**:超過 10 個 finding 就用 5-field,因為 table 太擠睇唔到 detail。
### Env-only fix entry 範本 (2026-06-08 pm-system TD-012)
```markdown
### 🟡 TD-012: Host 跑 `bun test` 撞 `tasks.test.ts` fail(環境問題,非 code)
- **發現日期**: <date> (Sprint <N> retro <doc>)
- **發現來源**: <retro 文件 / QA review / David cue>
- **症狀**: <exact error message + how to reproduce on host>
- **根因**: <host vs container 差異 — 通常係 build step 跑咗但 install step 冇跑>
- **影響**:
- 🟡 **本地 dev friction** — <誰會撞>
- 🟢 **唔影響 ship** — <docker / CI 點解 OK>
- 🟢 **唔影響 production** — <runtime 點解唔受影響>
- **修復成本**: <日數,通常 0.01-0.1>
- **業務影響**: Low / Medium — <一句>
- **建議**: P2(純 DX polishing)
- **<date> 進展**: ✅ **已修** — <fix 詳情 + commit SHA>
- **守到**: <3 個 verify command 嘅具體 output>
Why 三段影響 vs 一段 Why: Env-only fix 嘅特有問題係「對 dev 係 friction,對 ship 係 invisible,對 prod 係 irrelevant」,合併寫會誤導 reviewer 以為係 ship blocker。拆三段令 priority tag 同影響範圍直接 visible。
regression-guard skill)— 個別 bug fix 嘅 invariant,RG-XXX entrydocs/QA-TRACKER.md 配 qa-tracker 規範)— US → test 對照,per-feature status當用戶問「清 N 個 P0/P1 tech debt」時嘅 recommended workflow, combine 咗 user 嘅 options-first preference 同 plan-then-execute 紀律。
不要悶頭做。每個 TD 都要:
典型 3-options template(David preference, 2026-06-09 pm-system):
A) 【推薦】<safe practical win, 預設>
- <outcome>
- <cost>
B) 【激進】<push 落 deeper change>
- <outcome>
- <risk>
C) 【保守】<只做最 minimum>
- <outcome>
- <cost>
User 揀咗先開工。不要假設 default,即使 plan 已經講咗。
開工前 list 出所有 step 喺 todo tool,每個 step 一行
(decomposition rule: 1 step = 1 file / 1 commit / 1 verify command)。
Pattern:
TD-X: 移除 dead code <symbol list>
TD-X: 搬 <file> → <new path>
RG-XXX: 更新 <test file> assert 新 invariant
RG-XXX: 寫 REGRESSION-GUARD.md entry
TD-Y: Dockerfile multi-stage build
TD-Y: docker build 對比 image size
守住: bun test + playwright test 全 PASS
更新 docs/TECH-DEBT.md 標 3 個 P1 為 ✅ + Sprint N closure
read_file 確認未 corrupt(尤其 import line 未掉)bun test <file> 即跑docker build 對比 sizebun --print 'import(...)' over LSP
(詳見 patch-corruption-recovery 嘅 "Import-silently-dropped pitfall")cd backend && bun test # unit
cd e2e && npx playwright test # E2E (要 docker stack up)
如果 E2E 跑唔到(docker stack build 失敗),要:
git log 確認)refactor(sprintN): clear N P1 tech debt (TD-XXX/...) + RG-XXX)git add <specific files> 唔好 git add .)git status clean每個 TD entry 嘅「2026-06-XX 進展」section 加:
行動計劃 section 加 ### Sprint N (P1) — ✅ DONE (date) section
列出 5 個 checkbox(每個 TD + RG entry + 守住)。
變更歷史 section 加一行 closure 摘要(包括「E2E 跑唔到」嘅 blocker 註腳)。
4 段:
David preference: 短、有用、不解釋 why。每段 1-3 行。 忌:14K char inline report(紅線 49 v2, 2026-06-06 crm-system retro) 宜:1 個 final response < 3500 chars, hit 所有 verify point
# Tech Debt Register — {project_name}
## 條目格式
| ID | 描述 | 模組 | 優先級 | 修復成本 | 業務影響 | 狀態 | 日期 |
### 優先級定義
- **P0 (Critical)**: 影響核心功能或安全，立即修復
- **P1 (High)**: 影響開發效率，1-2週內修復
- **P2 (Medium)**: 技術上有問題，下個 sprint 修復
- **P3 (Low)**: 可忽略或下次重構時處理
### 修復成本估算
- **S (Small)**: < 4 小時
- **M (Medium)**: 4-16 小時
- **L (Large)**: 16-40 小時
- **XL (Extra Large)**: > 40 小時（需要單獨 sprint）
---
## P0 — Critical
| ID | 描述 | 模組 | 修復成本 | 業務影響 | 狀態 | 日期 |
|----|------|------|---------|---------|------|------|
| TD-001 | 密碼明文存儲 | Auth | M | 安全風險 | TODO | 2026-05-10 |
當發現以下情況時，立即記錄：
delegate_task(
goal="記錄新發現的技術債",
context="""
描述：API 沒有 rate limiting
模組：backend/api
優先級：P1
修復成本：S (< 4 小時)
業務影響：DDoS 風險
""",
role="leaf",
toolsets=['terminal', 'file']
)
在每個 sprint planning 時：
docs/tech-debt.mdDev-agent / checker-agent collaboration loop driven by downstream project docs/STATE.md. Dev agent implements and records work items; an independent checker agent verifies each item with real lint/typecheck/test/build evidence and writes findings back; loop continues until all items are VERIFIED or escalation limits are hit.
Synchronizes review feedback, QA findings, user corrections, and code-review suggestions into durable project docs before Build, merge, or ship.
Intake workflow for existing projects before continuing development. Analyze current source state, derive a truthful docs baseline, identify QA/regression gaps, and create a safe continuation plan.
防止修復過的 bug 重新出現(regression)。 規則:每個修過的 bug 必須留下「regression test」+「root cause note」+「為何會發生」分析, 確保日後 refactor / 改需求時唔會重新踩坑。 David 在 2026-06-06 kanban task 明確指出「舊的 bug 又出現」嘅困擾。
定時壓縮長時間任務的 context，避免 token 爆炸。寫入 context-summary.md 保留決策和當前狀態，丢棄細節。
Task Orchestration Subagent — Coordinates all subagents, manages task board, handles parallel/sequential execution, tracks dependencies and failures. The conductor of the development orchestra.