import type { HarnessDefinition } from './HarnessDefinition';
/**
 * What one harness installation command does with the harness.
 *
 * @private internal utility of `promptbookCli`
 */
export type HarnessInstallationOperation = 'install' | 'update';
/**
 * Options of one command which installs or updates a CLI coding harness.
 *
 * @private internal utility of `$runHarnessInstallationCommand`
 */
type HarnessInstallationCommandOptions = {
    /**
     * Harness which is installed or updated.
     */
    readonly definition: HarnessDefinition;
    /**
     * What the command does with the harness.
     */
    readonly operation: HarnessInstallationOperation;
    /**
     * Shell command which does it.
     */
    readonly command: string;
    /**
     * Extra environment variables required by the command.
     */
    readonly environment?: Readonly<Record<string, string>>;
};
/**
 * Runs one command which installs or updates a CLI coding harness.
 *
 * A failed installation is reported but never aborts the running command, because the harness check
 * is only an assistant - the command itself may still work with a manually managed harness.
 *
 * Note: `$` is used to indicate that this function is not a pure function - it installs software
 *
 * @returns `true` when the command succeeded, `false` when it failed
 * @private internal utility of `promptbookCli`
 */
export declare function $runHarnessInstallationCommand(options: HarnessInstallationCommandOptions): Promise<boolean>;
export {};