docs: rewrite README + add CONTRIBUTING guide
- README: update Rule signature to onion middleware, add architecture diagram, document watchers/survival/storage, link all RFCs - CONTRIBUTING: code structure, architecture, dev workflow, testing conventions, Cursor Agent usage guide, design principles
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# Contributing to Pulse
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开发指南。
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## 前置要求
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- [Bun](https://bun.sh) >= 1.0(运行时 + 包管理 + 测试)
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- Git
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- [Cursor Agent CLI](https://docs.cursor.com/agent) (可选,用于 AI 辅助编码)
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```bash
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git clone https://github.com/oc-xiaoju/pulse.git
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cd pulse
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bun install
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```
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## 代码结构
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```
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pulse/
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├── packages/
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│ ├── pulse/src/ ← 核心引擎(@uncaged/pulse)
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│ │ ├── index.ts ← Rule 类型、composeRules、runPulse、rebuildSnapshot
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│ │ ├── rules.ts ← 内置 rules:clampTick、errorBackoff、adaptiveInterval、dedup
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│ │ ├── store.ts ← 存储层:events.db + vitals.db + objects/ CAS
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│ │ ├── watcher.ts ← Watcher 框架:startWatcher、wakeTick、WatcherDef
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│ │ ├── watchers/ ← P0 内置 watchers(植物神经,agent 不可改)
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│ │ │ ├── system-resource.ts CPU/内存/磁盘/swap
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│ │ │ ├── process-alive.ts 关键进程存活检测
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│ │ │ ├── network.ts DNS + HTTP 连通性
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│ │ │ ├── error-log.ts 日志关键词匹配
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│ │ │ ├── llm-health.ts LLM 双层探针(轻量 + 深度)
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│ │ │ └── index.ts
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│ │ ├── survival/ ← P0 保命层(植物神经,agent 不可改)
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│ │ │ ├── constants.ts ESSENTIAL_PROCESSES 白名单、阈值常量
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│ │ │ ├── health.ts HealthSnapshot 类型 + rebuildHealth
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│ │ │ ├── rules.ts 7 个保命 rules(洋葱最外层)
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│ │ │ ├── executors.ts 保命 executors(确定性本地命令)
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│ │ │ └── index.ts
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│ │ └── executors/ ← 业务 executors(agent 可扩展)
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│ │ ├── coding-agent.ts Coding Agent Executor
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│ │ └── index.ts
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│ │
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│ └── upulse/src/ ← CLI 工具(@uncaged/upulse)
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│ ├── cli.ts 命令路由
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│ ├── daemon.ts daemon 进程管理
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│ ├── init.ts upulse init
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│ ├── git.ts git 操作封装
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│ ├── store.ts CLI 层存储辅助
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│ ├── config.ts 配置管理
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│ └── commands/
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│ ├── daemon.ts upulse daemon start/stop
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│ ├── deploy.ts upulse deploy(staging → promote)
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│ ├── dev.ts upulse dev(热重载)
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│ ├── gc.ts upulse gc(vitals 清理)
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│ ├── init.ts upulse init
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│ ├── inspect.ts upulse inspect(查看 events/vitals)
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│ ├── list.ts upulse list(列出实例)
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│ └── tick.ts upulse tick(手动触发一次 tick)
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│
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├── biome.json ← Biome linter 配置
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├── package.json ← monorepo root
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└── bun.lock
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```
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## 架构
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### 核心三原语
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```
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Collector(感知)→ Rule(认知)→ Executor(行动)
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```
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- **Collector = Watcher**:持续采集外部状态,写 vitals
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- **Rule = 洋葱中间件**:`(prev, curr, inner) => [effects, tickMs]`
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- **Executor = Effect handler**:执行 effects 产生的动作
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### 双层驱动
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```
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Autonomic 层(vitals.db)
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Watchers 每 5s 采集 → 写 vitals → 唤醒判定 → wakeTick()
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↓
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Tick 层(events.db) 中断 sleep
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rebuildSnapshot → Rule Chain(洋葱)→ Executors
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└── 被 timer 或 wakeTick 唤醒
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```
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- Tick 串行不并发(加锁)
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- wakeTick 可中断 sleep,tick 执行中的 wake 设 pendingWake flag
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### 洋葱 Rule 模型
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```
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[panicRollback, processWatchdog, resourceGuard, ...survivalRules, ...agentRules]
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└────────── 核心包硬编码,最外层 ──────────┘ └── agent engine/ ──┘
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```
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最外层的保命 rules 由核心包注入,agent 看不到也改不了。
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### 存储模型
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一切皆事件。三个存储:
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| 存储 | 内容 | 生命周期 |
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|---|---|---|
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| `events.db` | promote/rollback/effect/error/collect/tick | 永不压缩 |
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| `vitals.db` | 高频采样数据(系统资源/进程/网络/LLM) | 可 gc(archive + downsample) |
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| `objects/` | CAS 内容寻址存储 | 自动去重,不可变 |
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## 开发工作流
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### 跑测试
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```bash
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# 核心引擎测试
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cd packages/pulse && bun test
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# 全部测试(含 E2E)
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bun test
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```
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### Lint & 格式化
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```bash
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# 检查
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bun run lint
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# 自动修复
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bun run lint:fix
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```
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项目使用 [Biome](https://biomejs.dev/) 做 lint 和格式化。CI 会检查。
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### 分支约定
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```bash
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git checkout -b feat/descriptive-name # 新功能
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git checkout -b fix/descriptive-name # 修复
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git checkout -b chore/descriptive-name # 工具链/配置
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```
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### Commit 格式
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```
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type: short description (closes #N)
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```
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Types: `feat:` `fix:` `docs:` `refactor:` `chore:`
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### Issue 驱动
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每个改动都有 GitHub Issue。先开 issue,再写代码,commit 带 `closes #N`。
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## 关键设计原则
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1. **Moore 机** — 不逐事件响应,只看两次快照间的 diff。Effects 由新状态决定。
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2. **保命零依赖** — 保命层不依赖 LLM、不依赖外部网络。全部确定性本地命令。
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3. **Agent 不可改植物神经** — watchers/保命 rules/executors 硬编码在核心包。
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4. **幂等性靠 snapshot** — Rule 只看 `(prev, curr)`,不查 events 历史。rebuildSnapshot 预重建所有需要的状态。
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5. **Bypass = 短路** — 保命 rule 不调 `inner()` 时,内层业务 rules 全部跳过。
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## 测试约定
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- 单测文件和源码同目录:`foo.ts` → `foo.test.ts`
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- E2E 在 `packages/upulse/src/e2e/`
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- Mock 使用 `bun:test` 的 `jest.fn()` / `jest.spyOn()`
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- 网络/进程相关测试用依赖注入(如 `fetchFn` 参数),不做真实 IO
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- Watcher 测试构造 mock store + mock wakeTick
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- Rule 测试构造 mock snapshot + mock inner
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## 使用 Cursor Agent 编码
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项目使用 [Cursor Agent CLI](https://docs.cursor.com/agent) 作为主要编码工具:
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```bash
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# 分析(只读,不改文件)
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agent -p "分析 watchers/ 目录的结构和数据流" \
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--model claude-4.6-sonnet-medium --mode=ask --output-format text --trust
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# 执行(改文件)
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agent -p "实现 xxx 功能" \
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--model claude-4.6-sonnet-medium --force --output-format text --trust
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```
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### 模型选择
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| 难度 | 模型 | 场景 |
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| 🟢 简单 | `gpt-5.4-mini-medium` | 单文件小改、格式化 |
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| 🟡 标准 | `claude-4.6-sonnet-medium` | bug fix、新功能、重构 |
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| 🔴 复杂 | `claude-4.6-opus-high-thinking` | 架构改动、多文件重构 |
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## 相关资源
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- [RFC #1: Pulse — Agent 的自主神经系统](https://github.com/oc-xiaoju/pulse/issues/1)
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- [RFC #23: Autonomic Layer + Rule Middleware](https://github.com/oc-xiaoju/pulse/issues/23)
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- [Design #27: P0 保命层](https://github.com/oc-xiaoju/pulse/issues/27)
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- [Wiki: Pulse 架构](https://shazhou-ww.github.io/oc-wiki/shared/pulse-agent-architecture/)
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