prepareSessionFunctions

SUPPORT · function · 运行时值

Build the session policy for one stage.

导入

TypeScript

import { prepareSessionFunctions } from '@jangts/agent-core/support';

JavaScript

import { prepareSessionFunctions } from '@jangts/agent-core/support';

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

定义

调用

prepareSessionFunctions(tools: readonly RegisteredModelTool[], options?: SessionFunctionOptions): PreparedSessionTransport

Build the session policy for one stage.

参数	类型	传递	说明
tools	readonly Readonly<ModelTool<unknown, unknown, any>>[]	必需	—
options	SessionFunctionOptions	可省略	—

options 的字段

字段	类型	必需	说明
temperature	number | undefined	可省略	只读。见类型定义及调用场景。
toolChoice	"auto" | "required" | "none" | undefined	可省略	只读。见类型定义及调用场景。
parallelToolCalls	boolean | "omit" | undefined	可省略	只读。见类型定义及调用场景。

返回： PreparedSessionTransport。

返回值结构

字段	类型	必需	说明
options	Pick<ModelOptions, "functions" | "json" | "toolChoice" | "parallelToolCalls" | "temperature">	必需	只读。见类型定义及调用场景。
schemaChars	number	必需	只读。见类型定义及调用场景。
instruction	string	必需	只读。见类型定义及调用场景。
createResponse	() => ModelResponseCollector<ResolvedSessionResult>	必需	见类型定义及调用场景。

使用示例

• 模型传输与阶段投影：从 Tool 定义生成封存目录与阶段投影，原生函数和 JSON 适配复用同一 Tool 合同。

创建具名文本传输

入门 · Node.js

TypeScript

import { ModelRunner, Support } from '@jangts/agent-core';
const text = Support.createTextTransport({ id: 'brief', options: { temperature: 0.2 } });
const runner = new ModelRunner({ provider: { async *stream() { yield '服务正常'; } }, transports: [text] });
console.log((await runner.invoke({ input: '简答服务状态', transport: text })).value);

JavaScript

import { ModelRunner, Support } from '@jangts/agent-core';
const text = Support.createTextTransport({ id: 'brief', options: { temperature: 0.2 } });
const runner = new ModelRunner({ provider: { async *stream() { yield '服务正常'; } }, transports: [text] });
console.log((await runner.invoke({ input: '简答服务状态', transport: text })).value);

从同源 Tool 生成两个阶段的传输

配置 · Node.js

TypeScript

import { Support } from '@jangts/agent-core';
const inputSchema = Support.defineSchema({
  jsonSchema: { type: 'object', properties: {}, additionalProperties: false },
  parse(value: unknown) {
    if (!value || typeof value !== 'object' || Array.isArray(value) || Object.keys(value).length) throw new TypeError('需要空对象');
    return {};
  },
});
const tools = Support.defineModelTools([
  { id: 'greet', description: '问候', inputSchema, resolve: () => 'greet' },
  { id: 'status', description: '状态查询', inputSchema, resolve: () => 'status' },
]);
const transport = Support.createStageModelTransport({ id: 'intent', tools,
  stages: [{ id: 'recognize', toolIds: ['greet', 'status'] }, { id: 'status-only', toolIds: ['status'] }],
});
console.log(transport.prepare('status-only').schemaChars);

JavaScript

import { Support } from '@jangts/agent-core';
const inputSchema = Support.defineSchema({
    jsonSchema: { type: 'object', properties: {}, additionalProperties: false },
    parse(value) {
        if (!value || typeof value !== 'object' || Array.isArray(value) || Object.keys(value).length)
            throw new TypeError('需要空对象');
        return {};
    },
});
const tools = Support.defineModelTools([
    { id: 'greet', description: '问候', inputSchema, resolve: () => 'greet' },
    { id: 'status', description: '状态查询', inputSchema, resolve: () => 'status' },
]);
const transport = Support.createStageModelTransport({ id: 'intent', tools,
    stages: [{ id: 'recognize', toolIds: ['greet', 'status'] }, { id: 'status-only', toolIds: ['status'] }],
});
console.log(transport.prepare('status-only').schemaChars);

保留 Tool，只替换明确的交互适配

扩展 · Node.js

模型调用仍是 invoke({input,transport}) 并返回 ModelResult；切换交互不重新设计业务结果。

TypeScript

import { Support } from '@jangts/agent-core';
const inputSchema = Support.defineSchema({
  jsonSchema: { type: 'object', properties: {}, additionalProperties: false },
  parse(value: unknown) {
    if (!value || typeof value !== 'object' || Array.isArray(value) || Object.keys(value).length) throw new TypeError('需要空对象');
    return {};
  },
});
const tools = Support.defineModelTools([
  { id: 'status', description: '查询服务状态', inputSchema, resolve: () => 'status' },
]);
const native = Support.createModelTransport({ id: 'native', tools });
const adapterId: keyof typeof Support.modelInteractionCatalog = 'json-object';
const json = Support.createModelTransport({ id: 'json', tools, adapter: Support.modelInteractionCatalog[adapterId] });
console.log(native.id, json.id);

JavaScript

import { Support } from '@jangts/agent-core';
const inputSchema = Support.defineSchema({
    jsonSchema: { type: 'object', properties: {}, additionalProperties: false },
    parse(value) {
        if (!value || typeof value !== 'object' || Array.isArray(value) || Object.keys(value).length)
            throw new TypeError('需要空对象');
        return {};
    },
});
const tools = Support.defineModelTools([
    { id: 'status', description: '查询服务状态', inputSchema, resolve: () => 'status' },
]);
const native = Support.createModelTransport({ id: 'native', tools });
const adapterId = 'json-object';
const json = Support.createModelTransport({ id: 'json', tools, adapter: Support.modelInteractionCatalog[adapterId] });
console.log(native.id, json.id);

相关策略源码

• 阶段清单校验与动态源快照
• 显式模型交互适配器目录
• 正文与多工具调用的会话传输

相关定义

• ModelTool
• PreparedSessionTransport
• RegisteredModelTool
• SessionFunctionOptions