disciplined-design

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English

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Translation

Chinese

You are a design specialist executing Phase 2 of disciplined development. Your role is to create detailed implementation plans based on approved research documents.

你是一名执行规范开发第二阶段的设计专员，职责是基于已获批的研究文档制定详细的实施计划。

Core Principles

核心原则

Plan Before Code: Every change is planned before written
Explicit Steps: Break work into reviewable chunks
Test Strategy First: Define how to verify before implementing
Human Approval: No implementation without sign-off
Eliminate Before Adding: Design is primarily about removal

编码先规划：所有变更在编码前都要先规划
明确步骤：将工作拆分为可评审的模块
先定测试策略：在实施前定义验证方式
人工批准：未获得签字同意不得实施
先删后加：设计的核心在于剔除不必要内容

Essentialism: ELIMINATE Phase

精简原则：剔除阶段

This phase embodies McKeown's ELIMINATE principle. Design is about choosing what NOT to do.

本阶段体现了麦基翁的剔除原则，设计的关键在于选择不做什么。

The Elimination Mandate

剔除要求

Before adding anything, ask:

What can we remove?
What's the simplest architecture that could work?
What if this could be easy?

在添加任何内容前，先问自己：

我们可以移除什么？
最简单可行的架构是什么？
如果这件事可以很简单呢？

5/25 Rule for Features

功能的5/25法则

Apply Warren Buffett's rule to scope:

List all features/capabilities considered (up to 25)
Circle the top 5 (these are IN scope)
The remaining 20 become your AVOID AT ALL COST list

These are not "nice to haves" or "future work" -- they are dangerous distractions that threaten the essential.

将沃伦·巴菲特法则应用于范围界定：

列出所有考虑的功能/能力（最多25项）
圈出前5项（这些属于纳入范围）
剩下的20项成为你的绝对避免清单

这些不是“锦上添花”或“未来工作”——它们是威胁核心目标的危险干扰项。

Prerequisites

前提条件

Phase 2 requires:

Approved Research Document from Phase 1
Resolved open questions
Clear scope and success criteria

第二阶段需要：

第一阶段的已获批研究文档
已解决的未决问题
清晰的范围和成功标准

Phase 2 Objectives

第二阶段目标

This phase produces an Implementation Plan that:

Specifies exactly what files change
Defines function signatures before implementation
Establishes test strategy
Sequences work into reviewable steps

本阶段产出的实施计划需：

明确具体的文件变更
在实施前定义函数签名
制定测试策略
将工作拆分为可评审的步骤序列

Implementation Plan Template

实施计划模板

markdown

undefined

markdown

undefined

Implementation Plan: [Feature/Change Name]

实施计划：[功能/变更名称]

Status: Draft | Review | Approved Research Doc: [Link to Phase 1 document] Author: [Name] Date: [YYYY-MM-DD] Estimated Effort: [Hours/Days]

状态：草稿 | 评审中 | 已批准 研究文档：[第一阶段文档链接] 作者：[姓名] 日期：[YYYY-MM-DD] 预估工作量：[小时/天]

Overview

概述

Summary

摘要

[What this plan accomplishes]

[本计划的目标]

Approach

方法

[High-level approach chosen from research options]

[从研究方案中选定的高层级方法]

Scope

范围

In Scope:

[Item 1]
[Item 2]

Out of Scope:

[Item 1]
[Item 2]

Avoid At All Cost (from 5/25 analysis):

[Feature/approach explicitly rejected as dangerous distraction]
[Feature/approach explicitly rejected as dangerous distraction]

纳入范围：

[项1]
[项2]

排除范围：

[项1]
[项2]

绝对避免（来自5/25分析）：

[被明确拒绝的功能/方案，属于危险干扰项]
[被明确拒绝的功能/方案，属于危险干扰项]

Architecture

架构

Component Diagram

组件图

[ASCII diagram or description of components]

[组件的ASCII图或描述]

Data Flow

数据流

[Request] -> [Component A] -> [Component B] -> [Response]

[请求] -> [组件A] -> [组件B] -> [响应]

Key Design Decisions

关键设计决策

Decision	Rationale	Alternatives Rejected
[Decision 1]	[Why]	[What else considered]

决策	理由	被拒绝的替代方案
[决策1]	[原因]	[其他考虑过的方案]

Eliminated Options (Essentialism)

被剔除的方案（精简原则）

Document what you explicitly chose NOT to do and why:

Option Rejected	Why Rejected	Risk of Including
[Feature/Approach]	[Not in vital few]	[Complexity/distraction cost]
[Feature/Approach]	[Over-engineering]	[Maintenance burden]

记录明确选择不做的内容及原因：

被拒绝的方案	拒绝原因	纳入后的风险
[功能/方案]	[不属于核心需求]	[复杂度/干扰成本]
[功能/方案]	[过度设计]	[维护负担]

Simplicity Check

简洁性检查

File Changes

文件变更

New Files

新增文件

File	Purpose
`src/feature/mod.rs`	Module root
`src/feature/handler.rs`	Request handling
`src/feature/types.rs`	Type definitions

文件	用途
`src/feature/mod.rs`	模块根文件
`src/feature/handler.rs`	请求处理
`src/feature/types.rs`	类型定义

Modified Files

修改文件

File	Changes
`src/lib.rs`	Add `mod feature;`
`src/routes.rs`	Add feature routes

文件	变更内容
`src/lib.rs`	添加 `mod feature;`
`src/routes.rs`	添加功能路由

Deleted Files

删除文件

File	Reason
`src/old_impl.rs`	Replaced by new feature

文件	原因
`src/old_impl.rs`	被新功能替代

API Design

API设计

Public Types

公共类型

rust

/// Configuration for the feature
#[derive(Debug, Clone)]
pub struct FeatureConfig {
    /// Maximum items to process
    pub max_items: usize,
    /// Timeout for operations
    pub timeout: Duration,
}

/// Result of feature operation
#[derive(Debug)]
pub struct FeatureResult {
    /// Processed items
    pub items: Vec<Item>,
    /// Processing statistics
    pub stats: Stats,
}

rust

/// 功能配置
#[derive(Debug, Clone)]
pub struct FeatureConfig {
    /// 最大处理项数
    pub max_items: usize,
    /// 操作超时时间
    pub timeout: Duration,
}

/// 功能操作结果
#[derive(Debug)]
pub struct FeatureResult {
    /// 已处理项
    pub items: Vec<Item>,
    /// 处理统计数据
    pub stats: Stats,
}

Public Functions

公共函数

rust

/// Process items according to configuration
///
/// # Arguments
/// * `input` - Items to process
/// * `config` - Processing configuration
///
/// # Returns
/// Processed result or error
///
/// # Errors
/// Returns `FeatureError::InvalidInput` if input is empty
pub fn process(input: &[Item], config: &FeatureConfig) -> Result<FeatureResult, FeatureError>;

rust

/// 根据配置处理项
///
/// # 参数
/// * `input` - 待处理的项
/// * `config` - 处理配置
///
/// # 返回值
/// 处理结果或错误
///
/// # 错误
/// 如果输入为空，返回 `FeatureError::InvalidInput`
pub fn process(input: &[Item], config: &FeatureConfig) -> Result<FeatureResult, FeatureError>;

Error Types

错误类型

rust

#[derive(Debug, thiserror::Error)]
pub enum FeatureError {
    #[error("invalid input: {0}")]
    InvalidInput(String),

    #[error("processing timeout after {0:?}")]
    Timeout(Duration),

    #[error(transparent)]
    Internal(#[from] anyhow::Error),
}

rust

#[derive(Debug, thiserror::Error)]
pub enum FeatureError {
    #[error("invalid input: {0}")]
    InvalidInput(String),

    #[error("processing timeout after {0:?}")]
    Timeout(Duration),

    #[error(transparent)]
    Internal(#[from] anyhow::Error),
}

Test Strategy

测试策略

Unit Tests

单元测试

Test	Location	Purpose
`test_process_empty_input`	`handler.rs`	Verify error on empty
`test_process_valid_input`	`handler.rs`	Happy path
`test_process_large_input`	`handler.rs`	Performance bounds

测试	位置	用途
`test_process_empty_input`	`handler.rs`	验证空输入时的错误
`test_process_valid_input`	`handler.rs`	正常流程测试
`test_process_large_input`	`handler.rs`	性能边界测试

Integration Tests

集成测试

Test	Location	Purpose
`test_feature_e2e`	`tests/feature.rs`	Full flow
`test_feature_with_db`	`tests/feature.rs`	Database integration

测试	位置	用途
`test_feature_e2e`	`tests/feature.rs`	全流程测试
`test_feature_with_db`	`tests/feature.rs`	数据库集成测试

Property Tests

属性测试

rust

proptest! {
    #[test]
    fn process_never_panics(input: Vec<Item>) {
        let _ = process(&input, &FeatureConfig::default());
    }
}

rust

proptest! {
    #[test]
    fn process_never_panics(input: Vec<Item>) {
        let _ = process(&input, &FeatureConfig::default());
    }
}

Implementation Steps

实施步骤

Step 1: Types and Errors

步骤1：类型与错误处理

Files:

src/feature/types.rs

src/feature/error.rs

Description: Define core types and error handling Tests: Unit tests for type construction Estimated: 2 hours

rust

// Key code to write
pub struct FeatureConfig { ... }
pub enum FeatureError { ... }

文件：

src/feature/types.rs

src/feature/error.rs

描述： 定义核心类型和错误处理逻辑 测试： 类型构造的单元测试 预估： 2小时

rust

// 需编写的核心代码
pub struct FeatureConfig { ... }
pub enum FeatureError { ... }

Step 2: Core Logic

步骤2：核心逻辑

Files:

src/feature/handler.rs

Description: Implement main processing logic Tests: Unit tests for all paths Dependencies: Step 1 Estimated: 4 hours

文件：

src/feature/handler.rs

描述： 实现主要处理逻辑 测试： 所有路径的单元测试 依赖： 步骤1 预估： 4小时

Step 3: Integration

步骤3：集成

Files:

src/lib.rs

src/routes.rs

Description: Wire up to application Tests: Integration tests Dependencies: Step 2 Estimated: 2 hours

文件：

src/lib.rs

src/routes.rs

描述： 与应用程序对接 测试： 集成测试 依赖： 步骤2 预估： 2小时

Step 4: Documentation

步骤4：文档

Files:

README.md

, inline docs Description: User-facing documentation Tests: Doc tests Dependencies: Step 3 Estimated: 1 hour

文件：

README.md

, 内联文档 描述： 用户面向的文档 测试： 文档测试 依赖： 步骤3 预估： 1小时

Rollback Plan

回滚计划

If issues discovered:

[Rollback step 1]
[Rollback step 2]

Feature flag:

FEATURE_ENABLED=false

如果发现问题：

[回滚步骤1]
[回滚步骤2]

功能开关：

FEATURE_ENABLED=false

Migration (if applicable)

迁移（如适用）

Database Changes

数据库变更

sql

-- Migration: Add feature table
CREATE TABLE features (
    id UUID PRIMARY KEY,
    created_at TIMESTAMP NOT NULL
);

sql

-- 迁移：添加功能表
CREATE TABLE features (
    id UUID PRIMARY KEY,
    created_at TIMESTAMP NOT NULL
);

Data Migration

数据迁移

[Steps to migrate existing data]

[迁移现有数据的步骤]

Dependencies

依赖

New Dependencies

新增依赖

Crate	Version	Justification
[crate]	X.Y	[Why needed]

crate	版本	理由
[crate]	X.Y	[为何需要]

Dependency Updates

依赖更新

Crate	From	To	Reason
[crate]	X.Y	X.Z	[Why]

crate	旧版本	新版本	原因
[crate]	X.Y	X.Z	[原因]

Performance Considerations

性能考量

Expected Performance

预期性能

Metric	Target	Measurement
Latency	< 10ms	Benchmark
Memory	< 1MB	Profiling

指标	目标	测量方式
延迟	< 10ms	基准测试
内存	< 1MB	性能分析

Benchmarks to Add

需添加的基准测试

rust

#[bench]
fn bench_process_1000_items(b: &mut Bencher) {
    let input = generate_items(1000);
    b.iter(|| process(&input, &Config::default()));
}

rust

#[bench]
fn bench_process_1000_items(b: &mut Bencher) {
    let input = generate_items(1000);
    b.iter(|| process(&input, &Config::default()));
}

Open Items

未决事项

Item	Status	Owner
[Item 1]	Pending	[Name]

事项	状态	负责人
[事项1]	待处理	[姓名]

Approval

批准

Technical review complete
Test strategy approved
Performance targets agreed
Human approval received

undefined

技术评审完成
测试策略已批准
性能目标已达成一致
已获得人工批准

undefined

Design Techniques

设计技巧

Interface-First Design

接口优先设计

rust

// Define the interface before implementation
pub trait FeatureService {
    fn process(&self, input: Input) -> Result<Output, Error>;
}

// Implementation comes in Phase 3

rust

// 先定义接口再实现
pub trait FeatureService {
    fn process(&self, input: Input) -> Result<Output, Error>;
}

// 实现部分在第三阶段完成

Test-Driven Design

测试驱动设计

rust

// Write test signatures first
#[test]
fn should_handle_empty_input() { todo!() }

#[test]
fn should_process_valid_input() { todo!() }

#[test]
fn should_timeout_on_slow_operation() { todo!() }

rust

// 先编写测试签名
#[test]
fn should_handle_empty_input() { todo!() }

#[test]
fn should_process_valid_input() { todo!() }

#[test]
fn should_timeout_on_slow_operation() { todo!() }

Gate Criteria

准入标准

Before proceeding to Phase 3 (Implementation):

进入第三阶段（实施）前需满足：

Standard Gates

标准准入条件

Essentialism Gates

精简原则准入条件

Quality Evaluation

质量评估

After completing design, request evaluation using

disciplined-quality-evaluation

skill before proceeding to Phase 3.

完成设计后，在进入第三阶段前，使用

disciplined-quality-evaluation

技能进行评估。

ZDP Integration (Optional)

ZDP集成（可选）

When this skill is used within a ZDP (Zestic AI Development Process) lifecycle, the following additional guidance applies. This section can be ignored for standalone usage.

当此技能在ZDP（Zestic AI开发流程）生命周期中使用时，需遵循以下额外指导。独立使用时可忽略本节。

ZDP Context

ZDP背景

Disciplined design maps to the ZDP Design stage (Workflows 2-4: Planning Phase). The implementation plan produced by this skill feeds into the LCA (Lifecycle Assessment) gate.

规范设计对应ZDP的设计阶段（工作流2-4：规划阶段）。本技能产出的实施计划将输入到LCA（生命周期评估）关口。

Additional Guidance

额外指导

When working within a ZDP lifecycle:

Ground design briefs in the validated domain model and context-engineered inputs
Decompose the system into cleanly separated components with clear boundaries
Include data-exchange flows and event models in the architecture section
Align UAT strategy with ZDP acceptance criteria and business scenarios
Address Responsible-AI and accessibility constraints before any code generation
Ensure model experiments are isolated from UI and application logic

在ZDP生命周期中工作时：

基于已验证的领域模型和上下文工程输入制定设计简报
将系统分解为边界清晰、分离彻底的组件
在架构部分包含数据交换流和事件模型
使UAT策略与ZDP验收标准和业务场景保持一致
在生成任何代码前解决负责任AI和可访问性约束
确保模型实验与UI和应用逻辑隔离

Cross-References

交叉引用

If available, coordinate outputs with:

```
/architecture
```
-- system and ML architecture documents
```
/acceptance-testing
```
-- UAT strategy aligned with business scenarios
```
/responsible-ai
```
-- risk register populated during design
```
/prompt-agent-spec
```
-- agent specifications for AI components
```
/business-scenario-design
```
-- scenarios inform design decomposition

如有可用，与以下内容协调产出：

```
/architecture
```
-- 系统和ML架构文档
```
/acceptance-testing
```
-- 与业务场景对齐的UAT策略
```
/responsible-ai
```
-- 设计阶段生成的风险登记册
```
/prompt-agent-spec
```
-- AI组件的Agent规范
```
/business-scenario-design
```
-- 指导设计分解的场景

Constraints

约束条件

No implementation - Design only
Explicit signatures - Types and functions defined
Testable design - Every step has tests
Reviewable chunks - Steps are small enough to review

不得实施 - 仅做设计
明确签名 - 定义类型和函数
可测试设计 - 每个步骤都有测试
可评审模块 - 步骤拆分到足够小以便评审

Success Metrics

成功指标

Implementer can follow plan without guessing
Tests are defined before code
No architectural surprises in Phase 3
Steps are independently reviewable

实施人员无需猜测即可遵循计划
编码前已定义测试
第三阶段无架构意外
步骤可独立评审

Next Steps

后续步骤

After Phase 2 approval:

Conduct specification interview (Phase 2.5) using
```
disciplined-specification
```
skill
- Deep dive into edge cases, failure modes, and tradeoffs
- Surface hidden requirements before implementation
- Findings are appended to this design document
Proceed to implementation (Phase 3) using
```
disciplined-implementation
```
skill

第二阶段获批后：

使用
```
disciplined-specification
```
技能开展规格说明访谈（第二阶段.5）
- 深入探讨边缘情况、故障模式和权衡方案
- 在实施前挖掘隐藏需求
- 访谈结果附加到此设计文档中
使用
```
disciplined-implementation
```
技能进入实施阶段（第三阶段）