Type Alias SubagentStream<T, ToolCall>

SubagentStream: IsDeepAgentLike<T> extends true
    ? SubagentStreamInterface<
        SubagentStateMap<T, InferAgentToolCalls<T>>[InferSubagentNames<T>],
        InferAgentToolCalls<T>,
        InferSubagentNames<T>,
    >
    : IsAgentLike<T> extends true
        ? SubagentStreamInterface<InferAgentState<T>, InferAgentToolCalls<T>>
        : SubagentStreamInterface<T, ToolCall>

Represents a single subagent stream.

Supports two usage patterns:

Agent type inference (recommended): Pass a DeepAgent type directly and let TypeScript infer the correct state and tool call types.

import type { agent } from "./agent";

// Automatically infers state and tool call types from the agent
const subagent: SubagentStream<typeof agent> = ...;

Explicit generics: Pass state and tool call types manually.

type ResearcherState = { research_notes: string };
const researcher: SubagentStream<ResearcherState, MyToolCall> = ...;

Type Parameters

T = Record<string, unknown>
Either a DeepAgent/Agent type for automatic inference, or a state type (Record) for explicit typing. Defaults to Record<string, unknown>.
ToolCall = DefaultToolCall
The type of tool calls in messages. Only used when T is a state type. Defaults to DefaultToolCall.