export declare const SKILL_INSTALL_TIMEOUT_MS = 120000;
export declare const STEP_MAX_BUFFER: number;
/** Quiet captures subprocess output and replays it only on failure. */
export type InstallOptions = {
    verbose: boolean;
    /** Progress line even when quiet; defaults to `verbose`. */
    announce?: boolean;
};
/** Outcome of `--all`'s one npm install; error keeps ConnectStepError.failureReason. */
export type HoistedCliInstall = {
    ok: true;
    durationMs: number;
} | {
    ok: false;
    durationMs: number;
    error: Error;
};
/** Every harness reads the outcome; only the first take reports it. */
export type TakeHoistedCliInstall = () => {
    outcome: HoistedCliInstall;
    firstTake: boolean;
};
export declare function captureStdio(verbose: boolean): {
    stdio: "inherit";
    timeout: number;
    encoding?: undefined;
    maxBuffer?: undefined;
} | {
    encoding: "utf8";
    maxBuffer: number;
    timeout: number;
    stdio?: undefined;
};
/** Inherited stdio leaves these null; only piped runs yield text. */
export declare function capturedOutput(result: {
    stdout?: unknown;
    stderr?: unknown;
}): string;
/** A verbose run captured nothing, so this is a no-op. */
export declare function replay(output: string): void;
export declare function installTinyFishCli({ verbose, announce }: InstallOptions): void;