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flowcast

v0.5.0

Published

轻量 workflow 编排框架:断点续跑、HITL、多 CLI 调度

Downloads

1,862

Readme

flowcast

轻量 workflow 编排框架:断点续跑 · HITL · 多 CLI/agent 调度 · 自改安全沙箱 · 质量门,以及其上的 L3 codegen 编排层(一行需求 → 动态生成 flow → 隔离执行)。

零运行时依赖 · 纯 ESM · Node ≥ 20

npm license

完整文档


快速上手

1. 安装

npm install -g flowcast

2. 前置配置(必须,约 2 分钟)

orchestrate 需要有可用的 AI agent CLI(如 claude)和 provider 配置:

// ~/.flowcast/providers.json(机器级,gitignore)
{
  "providers": {
    "anthropic": {
      "type": "anthropic",
      "apiKey": "${ANTHROPIC_API_KEY}"   // 密钥从 env 展开,明文不入仓
    }
  }
}
// ~/.flowcast/agents.json
{
  "agents": {
    "claude-sonnet": {
      "executor": "claude",
      "provider": "anthropic",
      "model": "claude-sonnet-4-6"
    }
  }
}

详见 examples/providers.example.jsonexamples/agents.example.json

3. 跑起来

# 一行需求 → 生成 flow → 校验 → 执行
flowcast orchestrate "把 README 里的 TODO 清单逐条实现" --repo . --agent claude-sonnet

# 干跑验证结构(不烧 API,无需配置)
FLOWCAST_DRY_RUN=1 flowcast orchestrate "test" --repo .

核心能力

| 能力 | 说明 | |------|------| | 断点续跑 | Checkpoint 把 flow 拆成可持久化的步骤,中断后传同一 run-id 续跑,已完成步骤零重复执行 | | HITL | 可插拔 HITL 后端(terminal / 企业微信),在关键节点阻塞等待人工决策 | | 多 CLI/agent 调度 | claude / cursor / gemini / codex / aider / recursive 各有 adapter,统一 runAgent 驱动,可路由、可并行、可互换 | | 自改安全沙箱 | withSelfModGuard 隔离自改,质量门失败硬回滚,让 agent 安全地改自己的代码 | | 质量门 | runGate / runGates 把测试、lint、构建纳入 flow,失败可 rollback / resume-fix / autofix | | goal-driven 循环 | loop 原语:每轮 fresh context 迭代 + 可选跨-run 记忆 + 质量门验证 + budget 封顶 | | L3 codegen 编排 | orchestrate:需求 → 受约束生成 flow → 三道护栏校验 → 子进程隔离执行(续跑锁定) | | 并发子 flow | fanOut 限并发 + worktree 隔离;runFlow 把任意 flow 当隔离子进程跑 | | 可观测看板 | flowcast dashboard 扫描运行状态,生成只读单文件 HTML 看板 |


三层架构

L3 编排层 (orchestrator/)         接单 → 动态生成 flow → 校验 → 执行(续跑锁定)
L2 引擎   (核心原语)              Checkpoint / 自改沙箱 / 质量门 / HITL / loop / dry-run
L1 执行器 (agent.js + executor.js) 怎么驱动一个 CLI/agent + provider 能力分层 + 路由

安装

全局 CLI(推荐)

npm install -g flowcast

全局安装后,flowcast(或 flowc / fc / flowcast)命令在任何目录可用,业务项目无需自己的 node_modules

项目内安装

npm install flowcast

L3 orchestrate 会生成 import flowcast 的 flow 代码,目标仓需能解析本包(跑前预检,缺依赖 fail-fast 并给出安装指引)。


写一个 flow

// .flowcast/flows/my-flow.js
import { parseArgs } from 'util'
import { Checkpoint, runAgent } from 'flowcast'

const { values: opts } = parseArgs({
  options: {
    'run-id': { type: 'string' },
    repo: { type: 'string', default: process.cwd() },
  },
})

const cp = new Checkpoint(opts['run-id'] ?? `run-${Date.now()}`, `${opts.repo}/.flowcast/runs`)

await cp.step('p1.generate', () => runAgent('实现 XXX 功能', { cli: 'claude', cwd: opts.repo }))
await cp.step('p2.review',   () => runAgent('review 上一步的改动', { cli: 'claude', cwd: opts.repo }))

cp.done({ summary: 'done' })
# 首次跑
flowcast run .flowcast/flows/my-flow.js --repo .

# 中断后续跑(传同一 run-id)
flowcast run .flowcast/flows/my-flow.js --run-id run-1234567890 --repo .

配置

在项目根创建 .flowcast/config.json(committed):

{
  "qualityGates": [
    { "name": "test",  "cmd": "npm test",     "onFail": "resume-fix" },
    { "name": "lint",  "cmd": "npm run lint",  "onFail": "autofix", "autofixCmd": "npm run lint:fix" }
  ],
  "agents": {
    "default":  { "cli": "claude", "model": "claude-sonnet-4-6" }
  }
}

机器级密钥放 ~/.flowcast/providers.json(gitignore),用 ${ENV_VAR} 插值,明文永不入仓。


CLI 命令

flowcast orchestrate "<需求>" --repo .           # L3:需求 → 生成 flow → 执行
flowcast orchestrate "<需求>" --split --repo .   # 大目标拆子任务 → 并发执行
flowcast run <flow-file> [--run-id <id>]         # 跑 flow(续跑传同一 id)
flowcast flows install <path-to-flow.js>         # 安装自定义 flow 到 ~/.flowcast/flows/
flowcast flows list                              # 列出已安装的用户级 flow
flowcast dashboard --repo . [--open]             # 生成可观测看板 HTML

环境要求

  • Node.js ≥ 20
  • Git(worktree / 自改沙箱依赖)

许可证

MIT