/**
 * MastraCode Efficiency Scorer (Code-based, Agent type, 30% sampling)
 *
 * Measures how efficiently the agent completes work through quantitative ratios.
 * Unlike the Outcome Scorer (which checks *what* happened), this checks
 * *how much work* it took.
 *
 * This scorer produces a score from 0-1 but also exposes raw metrics in the
 * reason text for trend analysis. The score represents "how cleanly did the
 * agent work?" — not whether it got the right answer.
 *
 * Sampled at 30% because it's slightly more expensive (analyzes message sequences).
 */
export declare function createEfficiencyScorer(): import("@mastra/core/evals").MastraScorer<"mastracode-efficiency", import("@mastra/core/evals").ScorerRunInputForAgent, import("@mastra/core/evals").ScorerRunOutputForAgent, Record<"preprocessStepResult", {
    empty: true;
    totalCalls: number;
    totalTurns: number;
    redundancy?: undefined;
    turnCount?: undefined;
    retryEfficiency?: undefined;
    readBeforeEdit?: undefined;
} | {
    empty: false;
    redundancy: {
        score: number;
        ratio: number;
        detail: string;
    };
    turnCount: {
        score: number;
        detail: string;
    };
    retryEfficiency: {
        score: number;
        detail: string;
    };
    readBeforeEdit: {
        score: number;
        detail: string;
    };
    totalCalls: number;
    totalTurns: number;
}> & Record<"generateScoreStepResult", number> & Record<"generateReasonStepResult", string>>;
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