import type { SpawnMode, SpawnUsage } from "../types.js";
import type { AcpEvent } from "./types.js";
export interface SessionToolCall {
    id?: string;
    kind?: string;
    title?: string;
    input?: unknown;
    path?: string;
}
export interface SessionResult {
    output: string;
    messages: string[];
    toolCalls: SessionToolCall[];
}
export interface SpawnContext {
    sessionId: string;
    agent: string;
    logPath?: string;
    logDir?: string;
    logFileName?: string;
    logContent?: boolean;
    events: AcpEvent[];
    usage: SpawnUsage;
    eventStream?: AsyncIterable<AcpEvent>;
    sessionResult?: SessionResult;
    threadId?: string;
    prompt?: string;
    model?: string;
    mode?: SpawnMode;
    cwd?: string;
    startedAt?: Date;
    logFile?: string;
    /** Reason the spawn log could not be written, when logging failed. */
    logError?: string;
    metadata?: Record<string, unknown>;
}
export type AcpMiddleware = (ctx: SpawnContext, next: () => Promise<void>) => Promise<void>;
export declare function applyMiddlewares(middlewares: AcpMiddleware[], ctx: SpawnContext): Promise<void>;