/**
 * CLI Install Command
 *
 * Installs skills from the Crewly marketplace. Supports installing a single
 * skill by ID or all agent skills with the --all flag.
 *
 * @module cli/commands/install
 */
interface InstallOptions {
    all?: boolean;
}
/**
 * Installs a skill (or all skills) from the Crewly marketplace.
 *
 * When invoked with an ID, downloads and installs a single marketplace item.
 * When invoked with --all, installs all skills from the registry.
 *
 * @param id - Optional marketplace item ID to install
 * @param options - Command options (--all)
 */
export declare function installCommand(id?: string, options?: InstallOptions): Promise<void>;
export {};
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