export declare const INSTALL_HINT = "npm i -g @agentage/cli@latest";
export declare const REGISTRY_URL = "https://registry.npmjs.org/@agentage/cli/latest";
export interface CliLatest {
    version: string | null;
    minSupported: string;
    message: string | null;
}
export type UpdateStatus = {
    kind: 'current';
} | {
    kind: 'update-available';
    latest: string;
} | {
    kind: 'unsupported';
    latest: string | null;
    minSupported: string;
} | {
    kind: 'unknown';
};
export interface UpdateInfo {
    status: UpdateStatus;
    message: string | null;
}
export declare const compareVersions: (a: string, b: string) => number;
export declare const fetchCliLatest: (timeoutMs?: number) => Promise<CliLatest | null>;
export declare const evaluateUpdate: (installed: string, latest: CliLatest | null) => UpdateInfo;
export declare const checkForUpdate: (installed: string) => Promise<UpdateInfo>;