ModelCallRecord

CORE · interface · 类型合同

Receipt of a model call that returned successfully.

导入

TypeScript

import type { ModelCallRecord } from '@jangts/agent-core';

JavaScript

/** @typedef {import('@jangts/agent-core').ModelCallRecord} ModelCallRecord */

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

定义

interface ModelCallRecord

继承或实现： InvocationMetadata。

字段结构

字段	类型	必需	说明
status	"success"	必需	只读。Records are only emitted for successful calls; failures are thrown instead.
stageId	string | undefined	可省略	只读。Workflow stage that requested the call.
modelId	string | undefined	可省略	只读。Configured model binding used for the call.
callSequence	number	必需	只读。One-based position of the call within its runner's lifetime.
usage	Readonly<ModelUsage> | undefined	可省略	只读。Provider-reported token usage; present only when the provider supplied it.
runId	string | undefined	可省略	只读。Root run this invocation belongs to, when the host runs inside a diagnostics scope.
spanId	string | undefined	可省略	只读。Diagnostics span of this invocation.
parentSpanId	string | undefined	可省略	只读。Span that caused this invocation; absent for a root invocation.
parentInvocationId	string | undefined	可省略	只读。Enclosing invocation when one call triggers another.
invocationId	string	必需	只读。Opaque per-invocation id shared by receipt, events and diagnostic records.
startedAtMs	number	必需	只读。Start instant in epoch milliseconds.
durationMs	number	必需	只读。Elapsed milliseconds from start to completion.

使用示例

• ModelRunner：输入可以省写，输出合同保持一致：用真实 Provider 端口执行一次模型交互，返回 value 和本次 invocation。

同一输出的两种输入

入门 · Node.js

TypeScript

import { ModelRunner } from '@jangts/agent-core/model';
const provider = {
  async *stream(messages: readonly { content: string }[]) {
    yield '收到：' + messages.at(-1)!.content;
  },
};
const runner = new ModelRunner({ provider });
const first = await runner.invoke('你好');
const second = await runner.invoke({ input: '你好' });
console.log(first.value, second.value);
console.log(first.invocation.invocationId);

JavaScript

import { ModelRunner } from '@jangts/agent-core/model';
const provider = {
    async *stream(messages) {
        yield '收到：' + messages.at(-1).content;
    },
};
const runner = new ModelRunner({ provider });
const first = await runner.invoke('你好');
const second = await runner.invoke({ input: '你好' });
console.log(first.value, second.value);
console.log(first.invocation.invocationId);

增加预算与请求取消

配置 · Node.js

TypeScript

import { ModelRunner } from '@jangts/agent-core/model';
const provider = {
  async *stream(messages: readonly { content: string }[]) {
    yield '收到：' + messages.at(-1)!.content;
  },
};
const runner = new ModelRunner({ provider, maxCalls: 2, maxInputChars: 4000,
  maxOutputChars: 2000, callTimeoutMs: 15000,
  execution: { signal: AbortSignal.timeout(20000) },
});
const result = await runner.invoke({ input: '你好', stageId: 'reply', maxOutputTokens: 600 });
console.log(result.value, runner.remainingCalls);

JavaScript

import { ModelRunner } from '@jangts/agent-core/model';
const provider = {
    async *stream(messages) {
        yield '收到：' + messages.at(-1).content;
    },
};
const runner = new ModelRunner({ provider, maxCalls: 2, maxInputChars: 4000,
    maxOutputChars: 2000, callTimeoutMs: 15000,
    execution: { signal: AbortSignal.timeout(20000) },
});
const result = await runner.invoke({ input: '你好', stageId: 'reply', maxOutputTokens: 600 });
console.log(result.value, runner.remainingCalls);

相关策略源码

• Core 的基础预算缺省值

相关定义

• InvocationMetadata
• ModelUsage