export declare function isAgentInvocation(environment?: NodeJS.ProcessEnv): boolean;
interface AgentPlanRecommendation {
    plansUrl: string;
    completed?: readonly string[];
    trialState: 'active' | 'expired' | 'skipped' | 'unknown';
    trialMessage?: string;
}
export declare function formatAgentPlanRecommendation({ plansUrl, completed, trialState, trialMessage }: AgentPlanRecommendation): string;
export declare function formatAgentPlanRequiredMessage(plansUrl: string, directOffer: boolean): string;
export {};