/**
 * Spawn one cline process for a turn (json or ACP) with the shared plumbing:
 * process-group spawn (full access), turn timeout, abort kill ladder, the
 * per-turn marker env, and the hub-daemon reaper, which runs when the
 * process closes and again on abort (Stop) — see cline-runner-host.ts.
 *
 * Prompt delivery (json turns): cline 3.0.65 reads a piped prompt only when
 * fd 0 is a FIFO (verified live: a Node 'pipe' — a socketpair — and a
 * regular file are both ignored, and json mode then fails with "requires a
 * prompt argument or piped stdin"). So on POSIX the turn goes through
 * `/bin/sh`, which makes a private FIFO, feeds it from a 0600 prompt file
 * with `cat`, and `exec`s cline with the FIFO as stdin — cline keeps the
 * spawned pid (so `cline history`'s pid matches) and the prompt never
 * appears in argv. Windows passes it as the positional prompt.
 */
import { type ChildProcess } from 'node:child_process';
import type { AgentRunArgs } from './agent-runner.js';
import { type ClineSetup } from './cline-runner-host.js';
import type { ClineHost } from './cline-runner-types.js';
export declare const TURN_TIMEOUT_MS: number;
/** cline requires a positional prompt to contain whitespace ("quoted"); the
 *  real prompt follows it on stdin (cline joins them with a blank line). */
export declare const POSITIONAL_PROMPT = "Complete the task below.";
export interface ClineLaunch {
    child: ChildProcess;
    /** Resolves with the exit code on 'close'; rejects on a spawn error. */
    exit: Promise<number>;
    stderr(): string;
    timedOut(): boolean;
    /** SIGTERM the cline process alone (used to end an idle ACP process). */
    interrupt(): void;
    /** SIGTERM→SIGKILL the whole target (the tracked tree under full access). */
    killChild(graceMs?: number): void;
    /** Idempotent: clear timers and the abort hook; kill the child if alive. */
    dispose(): void;
}
export declare function launchCline(setup: ClineSetup, cliArgs: string[], args: AgentRunArgs, host: ClineHost, opts: {
    stdinPrompt?: string;
    interactive?: boolean;
}, plat?: NodeJS.Platform): ClineLaunch;
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