/**
 * Reliability telemetry — internal observability for key agent events.
 *
 * Records structured events and derives the Reliability Metrics that power the
 * Reliability Benchmark. This module is intentionally side-effect-light and
 * never logs sensitive user contents; payloads are caller-supplied summaries.
 */
import type { ReliabilityEvent, ReliabilityEventName, ReliabilityMetrics } from "./types.js";
export interface ReliabilityRecorder {
    record(name: ReliabilityEventName, data?: Record<string, unknown>): void;
    events(): readonly ReliabilityEvent[];
    metrics(): ReliabilityMetrics;
}
export interface ReliabilityRecorderOptions {
    missionId?: string;
    now?: () => number;
}
export declare class InMemoryReliabilityRecorder implements ReliabilityRecorder {
    private readonly _missionId?;
    private readonly _now;
    private readonly _events;
    private readonly _startedAt;
    constructor(options?: ReliabilityRecorderOptions);
    record(name: ReliabilityEventName, data?: Record<string, unknown>): void;
    events(): readonly ReliabilityEvent[];
    metrics(): ReliabilityMetrics;
    private _estimateTurns;
}
/** Merge events from multiple recorders into a single ordered stream. */
export declare function concatEvents(recorders: readonly ReliabilityRecorder[]): ReliabilityEvent[];
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