type EnvelopeData = Record<string, unknown> & {
    type: string;
};
export declare function resetFixtureClock(): void;
export declare const FIXTURE_EPOCH_MS = 1754000000000;
export declare function envelope(traceId: string, data: EnvelopeData): Record<string, unknown>;
export declare function promptCompletion(traceId: string, model: string, totalCost: number): Record<string, unknown>;
export declare function writeStatelog(filePath: string, events: Record<string, unknown>[]): string;
/** A graded run directory: one finished trace (t1) with input, cost and
 *  output, and one complete grading pass over it: a scalar 1 and a failed
 *  must-pass gate, so the row's score is 0.5 and its gates failed. */
export declare function writeGradedRun(baseDir: string, runId?: string): string;
/** A killed run: the harness says so; the trace has no output. */
export declare function writeKilledRun(baseDir: string, runId?: string): string;
/** Two traces in one file; the second names itself via setAgentName. */
export declare function writeMultiTraceStatelog(baseDir: string, name?: string): string;
export {};