Product Design 0→1 (Internal Process System) — v2.1

7-step pipeline. Each step has a human checkpoint. Latest confirmed artifact flows to next step.

Domain assumption

Target is ALWAYS a company-internal process management system. Roles and workflows are core. NOT for ToC products.

File layout (under project/)

project/
├── 00-input/{overview, roles, pain-points, expectations}.md
├── 01-user-stories.md
├── 02-flows/{swimlane.md, state-machine.md}
├── 03-er-model.md            # 🆕 v2.1
├── 03.5-field-decisions.md
├── 04-modules.md
├── 05-rbac-matrix.md         # 🆕 v2.1
├── 06-tracking-plan.md       # 🆕 v2.1
└── 07-output/{prototype.html, prd.md}

The 7 steps (each delegated to a reference file)

Cross-cutting rules (always apply)

1. 强制卡点：每步产物用 present_files 呈现后必须等用户确认（"确认"/"修改 X"），不允许越权进入下一步
2. AI 推断必须显式化：所有非用户明示的细节（字段、状态机、权限、埋点）必须通过 Step 5.5 + Step 6.5 让用户拍板
3. 回退即重生成：任何回退后，下游产物全部重做，禁止智能合并
4. [TODO:] 即时标注：当某节信息确实不足时，PRD 中用 [TODO: 具体需要补什么] 占位，绝不编造（吸收自 create-prd）
5. 领域偏移检测：Step 2.1 前必须扫描会话历史，发现领域切换主动暂停询问 a/b/c
6. 不发明：角色/痛点/字段/权限/埋点必须能从用户输入或决策清单溯源

Self-check

完成所有步骤后加载 references/appendices/selfcheck.md 跑自检清单，输出"通过/待补"清单。

End

"0→1 设计完成（含 PRD / 原型 / RBAC / 埋点）。下一步可调用 tech-design skill 进行技术方案设计。"