SubFlowLogger

CORE · class · 运行时值

Full execution-owned recorder. Owns its store and may issue restricted delegates.

导入

TypeScript

import { SubFlowLogger } from '@jangts/agent-core/diagnostics';

JavaScript

import { SubFlowLogger } from '@jangts/agent-core/diagnostics';

其他公开入口：@jangts/agent-core、@jangts/agent-core/types、@jangts/agent-core/structs、@jangts/agent-core/diagnostics。

定义

class SubFlowLogger

继承或实现： SubFlowLog。

构造函数

new SubFlowLogger(token: typeof loggerToken, store: Store): SubFlowLogger

参数	类型	传递	说明
token	typeof loggerToken	必需	—
store	Store	必需	—

store 的字段

字段	类型	必需	说明
write	(input: ScopedSubFlowStepInput) => string | -1	必需	见类型定义及调用场景。
fix	(stepId: string | -1, patch: SubFlowStepFix) => boolean	必需	见类型定义及调用场景。
readAll	() => readonly Readonly<RecordedSubStep>[]	必需	Both logger classes return the same complete immutable ledger.
owns	(stepId: string | -1, subnodeId: string) => boolean	必需	见类型定义及调用场景。
isActive	() => boolean	必需	见类型定义及调用场景。
nextNativeSubnodeId	(kind: string, definitionId: string) => string	必需	见类型定义及调用场景。
warn	(operation: "write" | "fix", reason: RejectionReason) => void	必需	见类型定义及调用场景。

返回： SubFlowLogger。

成员目录

成员	用途
write	完整输入输出见下方重载。
fix	完整输入输出见下方重载。
readAll	完整输入输出见下方重载。
fork	Issue a delegate for an App-owned logical group; no execution or scheduling is implied.

成员详情

write

实例方法。

write(input: SubFlowStepInput): string | -1

参数	类型	传递	说明
input	SubFlowStepInput	必需	—

input 的字段

字段	类型	必需	说明
kind	string | undefined	可省略	只读。Optional family classification; defaults to the custom type when omitted.
payload	Readonly<Record<string, SubFlowValue>> | undefined	可省略	只读。见类型定义及调用场景。
subnodeId	string | undefined	可省略	只读。Logical subnode grouping within this node visit; independent of individual log ids.
type	string | undefined	可省略	只读。App-defined business log type; never a write/fix operation enum.
parentStepId	string | undefined	可省略	只读。Reported parent step, forming a tree; absent for a top-level step.
relatedDefinitionId	string | undefined	可省略	只读。Self-reported reference only; never a workflow dispatch identity.
relatedInvocationId	string | undefined	可省略	只读。Real model/tool invocation identity, kept separate from the node-local subnode id.
name	string	必需	只读。Short reported label.
status	"error" | "success" | "unknown" | "planned" | "running" | "cancelled" | "skipped" | undefined	可省略	只读。Reported lifecycle status; omission means the node did not report one.
usedModel	boolean | undefined	可省略	只读。This step's own reported model use, never a descendant rollup.
startedAtMs	number | undefined	可省略	只读。Reported start instant in epoch milliseconds.
endedAtMs	number | undefined	可省略	只读。Reported end instant in epoch milliseconds; only meaningful for terminal statuses.
nextStepIds	readonly string[] | undefined	可省略	只读。Reported successor step ids, for display only.
caseId	string | undefined	可省略	只读。Reported case or variant id, interpreted by the App.
summary	string | undefined	可省略	只读。Reported one-line summary.

返回： string \| -1。

fix

实例方法。

fix(stepId: string | -1, patch: SubFlowStepFix): boolean

参数	类型	传递	说明
stepId	string | -1	必需	—
patch	SubFlowStepFix	必需	—

patch 的字段

字段	类型	必需	说明
status	"error" | "success" | "unknown" | "planned" | "running" | "cancelled" | "skipped" | undefined	可省略	只读。见类型定义及调用场景。
usedModel	boolean | undefined	可省略	只读。见类型定义及调用场景。
startedAtMs	number | undefined	可省略	只读。见类型定义及调用场景。
endedAtMs	number | undefined	可省略	只读。见类型定义及调用场景。
summary	string | undefined	可省略	只读。见类型定义及调用场景。
nextStepIds	readonly string[] | undefined	可省略	只读。见类型定义及调用场景。
payload	Readonly<Record<string, SubFlowValue>> | undefined	可省略	只读。Fill missing result fields; existing facts cannot be replaced.

返回： boolean。

readAll

实例方法。

readAll(): readonly Readonly<RecordedSubStep>[]

无调用参数。

返回： readonly Readonly<RecordedSubStep>[]。

fork

实例方法。

Issue a delegate for an App-owned logical group; no execution or scheduling is implied.

fork(subnodeId: string): ScopedSubFlowLogger

Issue a delegate for an App-owned logical group; no execution or scheduling is implied.

参数	类型	传递	说明
subnodeId	string	必需	—

返回： ScopedSubFlowLogger。

使用示例

• 过程监听与节点报告：App 订阅 Core 执行事实；节点报告自身 usedModel，并用实例式子日志先记意图、再补结果，Loop 负责身份和日志。

监听任务经过的节点与模型事件

入门 · Node.js

TypeScript

import { AgentCoreEngine, defineWorkflow, route } from '@jangts/agent-core/engine';

type State = { name: string; answer?: string };
const workflow = defineWorkflow<State, string>({
  id: 'greeting',
  nodes: [{
    id: 'greet', description: '根据本次姓名生成问候', startsRound: true,
    run: state => ({ answer: '你好，' + state.name }),
    routes: [route.deliver('answer')],
  }],
});
const agent = new AgentCoreEngine({ workflow, execution: {
  observe: { event(event) { console.log(event.type, event.eventId); } },
} });
console.log(await agent.run({ name: 'Ivan' }));

JavaScript

import { AgentCoreEngine, defineWorkflow, route } from '@jangts/agent-core/engine';
const workflow = defineWorkflow({
    id: 'greeting',
    nodes: [{
            id: 'greet', description: '根据本次姓名生成问候', startsRound: true,
            run: state => ({ answer: '你好，' + state.name }),
            routes: [route.deliver('answer')],
        }],
});
const agent = new AgentCoreEngine({ workflow, execution: {
        observe: { event(event) { console.log(event.type, event.eventId); } },
    } });
console.log(await agent.run({ name: 'Ivan' }));

节点执行时报告业务阶段

配置 · Node.js

节点只报告它知道的事实；Core 负责节点身份和执行关联。

TypeScript

import { AgentCoreEngine, defineWorkflow, route } from '@jangts/agent-core/engine';
type State = { name: string; answer?: string };
const workflow = defineWorkflow<State, string>({ id: 'greeting', nodes: [{
  id: 'greet', description: '生成问候', startsRound: true,
  run(state, context) {
    context.report({ payload: { phase: 'formatting' } });
    return { answer: '你好，' + state.name };
  }, routes: [route.deliver('answer')],
}] });
const agent = new AgentCoreEngine({ workflow, execution: {
  observe: { event(event) { console.log(event.type); } },
} });
console.log(await agent.run({ name: 'Ivan' }));

JavaScript

import { AgentCoreEngine, defineWorkflow, route } from '@jangts/agent-core/engine';
const workflow = defineWorkflow({ id: 'greeting', nodes: [{
            id: 'greet', description: '生成问候', startsRound: true,
            run(state, context) {
                context.report({ payload: { phase: 'formatting' } });
                return { answer: '你好，' + state.name };
            }, routes: [route.deliver('answer')],
        }] });
const agent = new AgentCoreEngine({ workflow, execution: {
        observe: { event(event) { console.log(event.type); } },
    } });
console.log(await agent.run({ name: 'Ivan' }));

先记异步计划，再补结果

配置 · Node.js

受限 logger 自动绑定分组并只修订自己的 write；readAll 仍可读全量。每次 fix 追加独立记录并关联原 write，节点无需提交 logger。

TypeScript

import { AgentCoreEngine, defineWorkflow, route } from '@jangts/agent-core/engine';
type State = { result?: string };
const workflow = defineWorkflow<State, string>({ id: 'prepare', nodes: [{
  id: 'prepare', description: '准备资料', async run(_, context) {
    const subs = context.createSubFlowLogger();
    const read = subs.fork('material-read');
    const id = read.write({ name: '读取资料', kind: 'read', type: 'material.read' });
    read.fix(id, { status: 'running' });
    const result = await Promise.resolve('已准备');
    read.fix(id, { status: 'success', usedModel: false, payload: { result } });
    context.report({ usedModel: false });
    console.log(read.readAll());
    return { result };
  }, routes: [route.deliver('result')],
}] });
const agent = new AgentCoreEngine({ workflow, execution: { observe: {
  accepts: ({ event, content }) => content === 'metadata' || event === 'node.progress',
  event(event) { if (event.type === 'node.progress') console.log(event.payload.subStep, event.subSteps); },
} } });
console.log(await agent.run({}));

JavaScript

import { AgentCoreEngine, defineWorkflow, route } from '@jangts/agent-core/engine';
const workflow = defineWorkflow({ id: 'prepare', nodes: [{
            id: 'prepare', description: '准备资料', async run(_, context) {
                const subs = context.createSubFlowLogger();
                const read = subs.fork('material-read');
                const id = read.write({ name: '读取资料', kind: 'read', type: 'material.read' });
                read.fix(id, { status: 'running' });
                const result = await Promise.resolve('已准备');
                read.fix(id, { status: 'success', usedModel: false, payload: { result } });
                context.report({ usedModel: false });
                console.log(read.readAll());
                return { result };
            }, routes: [route.deliver('result')],
        }] });
const agent = new AgentCoreEngine({ workflow, execution: { observe: {
            accepts: ({ event, content }) => content === 'metadata' || event === 'node.progress',
            event(event) { if (event.type === 'node.progress')
                console.log(event.payload.subStep, event.subSteps); },
        } } });
console.log(await agent.run({}));

相关策略源码

• 共享执行事实源和消费隔离
• 子步骤状态及推进关系

相关定义

• RecordedSubStep
• ScopedSubFlowLogger
• SubFlowLog
• SubFlowStepFix
• SubFlowStepInput