export type HostProcessResult = {
    output: string;
    code: number;
    truncated?: boolean;
};
export interface HostProcessRunner {
    run(file: string, args: string[], options: {
        cwd: string;
        signal?: AbortSignal;
        input?: string;
    }): Promise<HostProcessResult>;
}
/** Process runner for host-owned test and navigation tools. Never wraps EnvironmentBackend. */
export declare class NodeHostProcessRunner implements HostProcessRunner {
    run(file: string, args: string[], options: {
        cwd: string;
        signal?: AbortSignal;
        input?: string;
    }): Promise<HostProcessResult>;
}
export declare function discoverHostExecutable(names: string[], runner?: HostProcessRunner): Promise<string | undefined>;
export declare function browserArguments(input: {
    profile: string;
    artifact: string;
    url: string;
    action: "screenshot" | "dump-dom";
    allowInsecureTls: boolean;
}): string[];
export declare function artifactExists(path: string): Promise<boolean>;
export declare function bound(value: string): string;