Prd Writer

---
name: prd-writer
description: Write strategy-oriented Product Requirements Documents (PRDs) for AI product managers. Use when: (1) drafting a new PRD or strategy doc, (2) structuring a feature proposal with strategy rationale, (3) writing requirement docs that emphasize "why" over "how", (4) turning raw product ideas into structured requirement documents. NOT for: purely technical specs, engineering tickets, or UI copy.
---

# PRD Writer

Produce structured, strategy-first PRDs for AI product managers.

## Core Philosophy

Strategy PRDs answer **why before what**. Every section should connect features back to business goals and user outcomes. Avoid feature laundry lists; prioritize decision rationale.

## Standard PRD Structure

Use this structure unless the user specifies otherwise:

### 1. 背景与目标 (Background & Goals)
- 产品背景：当前现状和痛点
- 战略目标：本需求解决什么业务问题
- 成功指标：可量化的 KPI / OKR

### 2. 用户与场景 (Users & Scenarios)
- 目标用户群体（细分）
- 核心使用场景（用户故事格式）
- 用户旅程关键节点

### 3. 产品方案 (Solution)
- 核心功能列表（MoSCoW 优先级）
- 关键交互逻辑
- 边界与限制（Not in scope）

### 4. 策略设计 (Strategy Design)
- 算法/策略说明（AI 产品重点）
- 数据依赖与冷启动策略
- A/B 测试方案

### 5. 技术依赖 (Technical Dependencies)
- 依赖系统/接口
- 数据需求
- 性能要求

### 6. 风险与降级 (Risks & Fallback)
- 主要风险点
- 降级方案

### 7. 里程碑 (Milestones)
- 分阶段交付计划

## Writing Guidelines

- 用中文撰写，除非用户指定英文
- 策略逻辑要显式说明，不要隐含在功能描述里
- 每个功能点标注优先级：P0/P1/P2 或 Must/Should/Could
- AI 策略类需求必须包含：输入信号、模型/策略逻辑、输出形式、兜底规则

## Reference Files

- **references/prd-template.md** — 完整 PRD 模板（Markdown）
- **references/strategy-patterns.md** — 常见 AI 产品策略模式（推荐、排序、召回、意图识别等）

Read references when: user asks for a full template, or when the PRD involves AI/ML strategy components.