import type { SessionTrace } from "../../domain/loop/session-trace.js";
import type { EffectivenessScore } from "../../domain/loop/effectiveness-score.js";
export declare function writeTrace(workspaceRoot: string, trace: SessionTrace): Promise<void>;
export declare function appendScore(workspaceRoot: string, score: EffectivenessScore): Promise<void>;
export declare function readTraces(workspaceRoot: string, options?: {
    readonly limit?: number;
}): Promise<readonly SessionTrace[]>;
export declare function readScores(workspaceRoot: string, options?: {
    readonly limit?: number;
}): Promise<readonly EffectivenessScore[]>;
export declare function countTracesSinceLastExtraction(workspaceRoot: string): Promise<number>;
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