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version: "1.0.0" name: efficiency-metrics description: Knowledge pack for baseline establishment, quality gating, and efficiency report composition. Auto-loaded by metrics-agent and by /report command. origin: DDT
Efficiency Metrics
Triggers
- metrics-agent 启动 / /report 命令
Baseline 双口径(必须同时产生)
管道 A:历史同类项目工时
- 从最近 6 个月的真实项目里选 3–5 个可比案例
- 按阶段(需求 / 架构 / 前端 / 后端 / 联调 / 测试 / 文档)拆解实际工时
- 存入
baseline/historical-projects.csv(见模板格式)
管道 B:专家独立估算
- 架构师 + 项目经理各自独立估算(禁止在 PRD 之后参考任何实际产物)
- 两人估算差 > 20% → 开一次对齐会,消除差异
- 存入
baseline/estimation-rules.md
最终 baseline = 两者均值
- 封盘时机:/prd + /wbs 产出后、/impl 启动前
- 封盘命令:先解析
DDT_PLUGIN_ROOT;若baseline/baseline.locked.json不存在,再执行node "$DDT_PLUGIN_ROOT/bin/baseline.mjs" --lock --hist baseline/historical-projects.csv --expert baseline/estimation-rules.md --out baseline/baseline.locked.json - 封盘后禁止修改(防止后视偏差污染对比数据)
baseline/baseline.locked.json属于被交付项目目录,不属于插件源码目录
质量守门阈值(任一劣化即在报告首行标红 ⚠️)
- 覆盖率(branch)≥ 70%
- Review 阻塞级问题 = 0
- 验收标准通过率 = 100%
- 返工次数(相对基线)不上升
- 缺陷密度不上升
Report Structure(硬性,不可省略任一章节)
- 摘要:一句话结论 + ⚠️ 劣化告警(若有,必须是报告第一行)
- 阶段级对比表:
(按"提效%"降序排,负值表示劣化)
- 质量守门表:覆盖率 / 阻塞级 / 验收通过率 / 返工次数 / 缺陷密度
- 三个分析问题的回答:
- 哪个阶段提效最多?为什么?
- 哪个阶段提效最少或劣化?根因是什么?
- 下次怎么优化?给出 ≤ 3 条可执行建议
- Top 3 优化建议(必须可执行,不能是"加强 XX")
- 原始数据链接:events.jsonl 路径 + metrics.db dump 命令
数据链路(hooks → 脚本 → 报告)
hooks → ~/.claude/delivery-metrics/events.jsonl → bin/aggregate.mjs → metrics.db ┐├→ bin/report.mjs → docs/efficiency-report.raw.mdbaseline/historical-projects.csv + baseline/estimation-rules.md │→ bin/baseline.mjs → baseline/baseline.locked.json ────────────────────────┘docs/efficiency-report.raw.md → metrics-agent → docs/efficiency-report.md
events.jsonl 字段结构:
json
{"event":"session_start","ts":"2026-01-01T00:00:00Z","project_id":"<id>","data":{"session_id":"<uuid>","cwd":"<path>"}}{"event":"session_end","ts":"2026-01-01T01:00:00Z","project_id":"<id>","data":{"session_id":"<uuid>","tokens_input":1000,"tokens_output":500}}{"event":"pre_tool_use","ts":"2026-01-01T00:10:00Z","project_id":"<id>","data":{"session_id":"<uuid>","tool_name":"Write","file_path":"docs/prd.md"}}{"event":"post_tool_use","ts":"2026-01-01T00:10:02Z","project_id":"<id>","data":{"session_id":"<uuid>","tool_name":"Write","success":true,"output_size":2048}}{"event":"subagent_stop","ts":"2026-01-01T00:30:00Z","project_id":"<id>","data":{"session_id":"<uuid>","subagent_name":"product-agent","duration_ms":120000,"tokens_input":1000,"tokens_output":500}}{"event":"quality_metrics","ts":"2026-01-01T00:40:00Z","project_id":"<id>","data":{"defects_critical":0,"defects_major":1,"defects_minor":2,"coverage_pct":72.5,"rework_count":0,"acceptance_pass_pct":100}}
Do
- 所有百分比保留 1 位小数(如 42.3%)
- 对比表按"提效%"降序排列
- 优化建议必须可执行("下次 /design 前先跑一次 lint" ✅ 而不是"加强设计" ❌)
- baseline 封盘后每次新项目开始都重新 lock
Don't
- 不修改 raw 数据(docs/efficiency-report.raw.md 由脚本生成,禁止手改)
- 不在 baseline 封盘后调整基线(即使实际工时严重偏差)
- 不隐藏劣化指标(所有指标必须如实上报,包括负向结果)
- 不用"相对上次提升了"代替"相对基线提升了"(基线是封盘值,不是上次报告)
Templates & References
templates/efficiency-report.template.mdbin/aggregate.mjs(事件聚合)bin/baseline.mjs(基线封盘与读取)bin/report.mjs(原始报告生成)baseline/historical-projects.csv(历史项目数据格式)