export declare function computeElapsed(startTime: number): {
    elapsedStr: string;
    elapsedS: number;
};
export declare function formatMetricsSuffix({ costUsd, numTurns }: {
    costUsd: number | null;
    numTurns: number | null;
}): string;
/** Build "cortex-XXXX · `uuid`" tag for Slack status messages. */
export declare function buildSessionTag(sessionName: string | null, sessionId: string | null): string;
export declare function buildUserProcessingMessage({ startTime, elapsed_s, num_turns, profileName, sessionName, sessionId }: {
    startTime: number;
    elapsed_s?: number | null;
    num_turns?: number | null;
    profileName: string;
    sessionName?: string | null;
    sessionId?: string | null;
}): string;
/** Build the multi-agent thread step status line. When task info is present (task-dispatch
 *  threads carry taskProject/taskId/taskText in metadata) the line leads with the task identity
 *  — "[proj] <text…> · `id`" — so a glance tells you what is running; the short thread id is kept
 *  at the tail for thread-op debugging. Without task info it falls back to the thread-only form. */
export declare function buildThreadStatusMessage({ threadId, stepNumber, label, elapsedS, numTurns, taskProject, taskId, taskText }: {
    threadId: string;
    stepNumber: number;
    label: string;
    elapsedS: number;
    numTurns?: number | null;
    taskProject?: string | null;
    taskId?: string | null;
    taskText?: string | null;
}): string;