import type { RunLimits } from "../../runtime/ipc.js";
/** Substituted argv must fit the OS argument-size limit; the raw failure is
 *  an opaque E2BIG from spawn. Conservative cap, checked before spawning. */
export declare const MAX_COMMAND_BYTES: number;
/**
 * Run a command target: spawn (not fork — no IPC channel) in the workdir,
 * with the statelog handoff in the env. Every compiled Agency process the
 * command starts — directly or through descendants — reads
 * AGENCY_CONFIG_OVERRIDES at startup and writes its statelog to the
 * harness's expected path, and AGENCY_TRACE_ID keeps the whole tree on one
 * trace id (including descendants started without IPC). Never throws;
 * failures settle as { ok: false }.
 */
export declare function runCommandInSpawn(args: {
    argv: string[];
    cwd: string;
    statelogPath: string;
    traceId: string;
    pipeOutput: boolean;
    limits: RunLimits;
    maxCostUsd: number;
}): Promise<{
    ok: true;
} | {
    ok: false;
    errorMessage: string;
}>;