| name | coverage |
| scope | partial |
| description | [UDS] Analyze test coverage and provide recommendations |
| allowed-tools | Read, Grep, Glob, Bash(npm test:*) |
| argument-hint | [file or module | 檔案或模組] |
Test Coverage Assistant | 測試覆蓋率助手
Analyze test coverage across multiple dimensions and provide actionable recommendations.
多維度分析測試覆蓋率並提供可執行的建議。
Related: For requirement-level coverage (which AC have tests?), use /ac-coverage instead. This skill (/coverage) focuses on code-level coverage (lines, branches, functions).
相關：如需需求層級覆蓋率（哪些 AC 有對應測試？），請改用 /ac-coverage。此技能（/coverage）專注於程式碼層級覆蓋率。
Coverage Dimensions | 覆蓋率維度
| Dimension | What it Measures | 測量內容 |
|---|
| Line | Lines of code executed | 執行的程式碼行數 |
| Branch | Decision paths taken | 決策路徑覆蓋 |
| Function | Functions called | 呼叫的函數 |
| Statement | Statements executed | 執行的陳述式 |
8-Dimension Framework | 八維度框架
- Code Coverage - Lines, branches, functions
- Requirement Coverage - All requirements have tests
- Risk Coverage - High-risk areas prioritized
- Integration Coverage - Component interaction paths
- Edge Case Coverage - Boundary conditions tested
- Error Coverage - Error handling paths verified
- Permission Coverage - Access control scenarios
- AI Generation Quality - AI-generated test effectiveness
Coverage Targets | 覆蓋率目標
| Level | Coverage | Use Case | 適用場景 |
|---|
| Minimum | 60% | Legacy code | 遺留程式碼 |
| Standard | 80% | Most projects | 大多數專案 |
| High | 90% | Critical systems | 關鍵系統 |
| Critical | 95%+ | Safety-critical | 安全關鍵 |
Workflow | 工作流程
- Run coverage tool - Generate coverage report | 產生覆蓋率報告
- Analyze gaps - Identify untested areas | 識別未測試區域
- Prioritize - Rank by risk and importance | 依風險排序
- Recommend tests - Suggest specific tests to add | 建議新增測試
- Track progress - Monitor coverage over time | 追蹤進度
Usage | 使用方式
/coverage - Run full coverage analysis | 執行完整覆蓋率分析
/coverage src/auth - Analyze specific module | 分析特定模組
/coverage --recommend - Get test recommendations | 取得測試建議
Next Steps Guidance | 下一步引導
After /coverage completes, the AI assistant should suggest:
覆蓋率分析完成。建議下一步 / Coverage analysis complete. Suggested next steps:
- 覆蓋率不足 → 執行
/tdd 補齊測試 — Coverage gaps → Run /tdd to add tests
- 已達標 → 執行
/checkin 品質關卡 ⭐ Recommended / 推薦 — Targets met → Run /checkin quality gates
- 發現熱點 → 執行
/refactor 改善可測試性 — Hotspots found → Run /refactor
Reference | 參考
AI Agent Behavior | AI 代理行為
完整的 AI 行為定義請參閱對應的命令文件：/coverage
For complete AI agent behavior definition, see the corresponding command file: /coverage
