DeliveryStage

KIT · interface · 类型合同

One pipeline stage, identified for reporting and optional observation.

导入

TypeScript

import type { DeliveryStage } from '@jangts/agent-core/kits/delivery';

JavaScript

/** @typedef {import('@jangts/agent-core/kits/delivery').DeliveryStage} DeliveryStage */

其他公开入口：@jangts/agent-core/types、@jangts/agent-core/kits/delivery、@jangts/agent-core/kits。

定义

interface DeliveryStage<Input, State, Result, StageId>

泛型参数

类型参数	约束	默认类型
Input	—	—
State	—	—
Result	—	—
StageId	string	—

字段结构

字段	类型	必需	说明
id	StageId	必需	只读。Unique, non-blank stage id in declaration order.
handle	((state: State, context: OperationContext<Input>) => StepOutcome<Result>) | undefined	可省略	只读。Handles this stage. Returning complete ends the pipeline immediately; continue moves to the next stage. Omitting the handler makes the stage a named hook that only beforeStage observes.

使用示例

• Delivery：顺序交付与显式结束：每个交付阶段明确 continue 或 complete；一个阶段完成后立即结束。

交付一段已经确认的文本

入门 · Node.js

TypeScript

import { Delivery } from '@jangts/agent-core/kits/delivery';
const delivery = Delivery.defineDelivery({
  createState: (input: string) => ({ text: input }),
  stages: [{ id: 'publish', handle: (state: { text: string }) => ({ type: 'complete' as const, value: state.text }) }],
  missingResult: () => new Error('没有可交付结果'),
});
console.log(delivery.deliver('已完成的答复', { signal: new AbortController().signal }));

JavaScript

import { Delivery } from '@jangts/agent-core/kits/delivery';
const delivery = Delivery.defineDelivery({
    createState: (input) => ({ text: input }),
    stages: [{ id: 'publish', handle: (state) => ({ type: 'complete', value: state.text }) }],
    missingResult: () => new Error('没有可交付结果'),
});
console.log(delivery.deliver('已完成的答复', { signal: new AbortController().signal }));

增加校验阶段，保留同一个 deliver

配置 · Node.js

TypeScript

import { Delivery } from '@jangts/agent-core/kits/delivery';
const delivery = Delivery.defineDelivery({
  createState: (input: string) => ({ text: input.trim() }),
  stages: [
    { id: 'check', handle(state: { text: string }) {
      if (!state.text) throw new Error('答复为空');
      return { type: 'continue' as const };
    } },
    { id: 'publish', handle: (state: { text: string }) => ({ type: 'complete' as const, value: state.text }) },
  ],
  beforeStage: ({ stageId }: { stageId: string }) => { console.log('阶段', stageId); },
  missingResult: () => new Error('没有可交付结果'),
});
console.log(delivery.deliver(' 已完成的答复 ', { signal: new AbortController().signal }));

JavaScript

import { Delivery } from '@jangts/agent-core/kits/delivery';
const delivery = Delivery.defineDelivery({
    createState: (input) => ({ text: input.trim() }),
    stages: [
        { id: 'check', handle(state) {
                if (!state.text)
                    throw new Error('答复为空');
                return { type: 'continue' };
            } },
        { id: 'publish', handle: (state) => ({ type: 'complete', value: state.text }) },
    ],
    beforeStage: ({ stageId }) => { console.log('阶段', stageId); },
    missingResult: () => new Error('没有可交付结果'),
});
console.log(delivery.deliver(' 已完成的答复 ', { signal: new AbortController().signal }));

相关策略源码

• 交错 hook、阶段短路与取消检查

相关定义

• OperationContext
• StepOutcome