/**
 * Convert an account name to a valid alias slug.
 * Rules: lowercase, alphanumeric + dashes, must start with a letter.
 */
export declare function slugifyAccountName(name: string): string;
/**
 * Resolve a non-colliding alias for an OAuth account.
 *
 * Two distinct accounts whose names slugify to the same string would
 * otherwise overwrite each other silently (e.g. "Acme Prod" and "Acme-Prod"
 * both slugify to "acme-prod"). Re-logging into the *same* account (same
 * accountId) is treated as a legitimate refresh and reuses the base alias.
 *
 * Returns the base alias when safe, or an auto-suffixed variant
 * (`base-2`, `base-3`, ...) when a different account already owns the base.
 */
export declare function pickUniqueAlias(desiredBase: string, targetAccountId: string, existingAccounts: {
    account: {
        accountId?: string;
    };
    alias: string;
}[]): {
    alias: string;
    collidedWith?: {
        accountId?: string;
        alias: string;
    };
};