export interface GoalProgressMessage {
    role: string;
    content?: string | Array<{
        type: string;
        text?: string;
    }>;
    toolName?: string;
    isError?: boolean;
    usage?: {
        totalTokens?: number;
        input?: number;
        output?: number;
        cacheRead?: number;
        cacheWrite?: number;
    };
}
export declare function countGoalProgressTokens(messages: GoalProgressMessage[]): number;
export declare function formatGoalProgress(messages: GoalProgressMessage[]): string;