/**
 * pin / unpin / update — project skill preference commands
 */
import type { Command } from "commander";
import { type InstallResult } from "../../lib/installer.js";
export declare function registerInstall(parent: Command): void;
/**
 * `skills pin name@version` (hasna/apps#1630): the exact version is FETCHED, digest-verified,
 * and written to the machine corpus before the pin is recorded, so the project pin names a
 * version this machine actually holds. Without an instance there is nothing to fetch from,
 * and a pin that claims a version it never saw is refused rather than written.
 */
export declare function pinExactVersion(name: string, version: string, options: {
    useRemote: boolean;
    overwrite: boolean;
    selectionProfile?: string;
    pull?: (spec: string) => Promise<{
        success: boolean;
        version?: string;
        error?: string;
    }>;
}): Promise<InstallResult>;