export interface CometRuntimeMetricsSnapshot {
    gitCommands: number;
    gitDurationMs: number;
}
/**
 * Keep the counter deliberately small and process-local. It is diagnostic
 * telemetry for the optional daemon benchmark, not a cache or a workflow
 * input, so it must never affect command behaviour.
 */
export declare function recordCometGitCommand(durationMs?: number): void;
export declare function snapshotCometRuntimeMetrics(): CometRuntimeMetricsSnapshot;
/** Attribute Git work to this request even when asynchronous handlers overlap. */
export declare function withCometRuntimeMetrics<T>(operation: () => Promise<T>): Promise<{
    result: T;
    metrics: CometRuntimeMetricsSnapshot;
}>;
/** Count successful and failed Git subprocesses with their elapsed time. */
export declare function measureCometGitCommand<T>(operation: () => T): T;
export declare function measureCometGitCommandAsync<T>(operation: () => Promise<T>): Promise<T>;
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