Type Alias InferSubagentState<T, TName, ToolCall>

InferSubagentState: InferSubagentByName<T, TName> extends never
    ? Record<string, unknown>
    : InferSubagentByName<T, TName> extends infer SA
        ? BaseSubagentState<ToolCall> & InferMiddlewareStatesFromArray<
            ExtractSubAgentMiddleware<SA>,
        >
        : Record<string, unknown>

Infer the state type for a specific subagent by extracting and merging its middleware state schemas, plus the base agent state (messages).

Type Parameters

T
The DeepAgent to extract from
TName extends string
The name of the subagent
ToolCall = DefaultToolCall
The tool call type for messages. Defaults to DefaultToolCall.

Example

const agent = createDeepAgent({
  subagents: [
    { name: "researcher", middleware: [ResearchMiddleware] }
  ] as const,
});

type ResearcherState = InferSubagentState<typeof agent, "researcher">;
// ResearcherState includes { messages: Message<ToolCall>[], ...ResearchMiddleware state }