import type { CompareOptions } from '../evaluate/compare.js';
import type { Experiment, ExperimentStore } from '../types/evaluate.js';
import type { GateResult } from './errors.js';
import type { PromotionGate } from './registry.js';
/** Options for `experimentGate()`. */
export interface ExperimentGateOptions {
    /** Where experiments are stored. */
    store: ExperimentStore;
    /** Requires an experiment with this name. Any name counts when omitted. */
    experiment?: string;
    /** Requires the experiment to have run over this dataset. */
    dataset?: string;
    /** Minimum mean per metric, such as `{ correctness: 0.9 }`. A metric the experiment lacks fails. */
    thresholds?: Record<string, number>;
    /** Examples that may produce no output at all. Defaults to 0. */
    maxErrors?: number;
    /**
     * Also compares with the newest experiment for the version the label serves now, and refuses a
     * regression beyond noise. Options pass through to `compareExperiments()`.
     */
    noRegression?: boolean | CompareOptions;
    /** Experiments searched, newest first. Defaults to 50. */
    limit?: number;
    /** Names the gate in reports. Defaults to `experiment`. */
    name?: string;
}
/**
 * The verdict of an experiment gate, for anything versioned whose experiments name it in metadata.
 * Shared by the prompt and context-bundle gates, so both judge a promotion the same way.
 */
export declare function experimentVerdict(options: ExperimentGateOptions, subject: (experiment: Experiment) => {
    name?: string;
    version?: string;
} | undefined, name: string, version: string, currentVersion: string | undefined): Promise<GateResult>;
/**
 * Refuses a promotion until an experiment has passed for the exact version being promoted.
 *
 * An experiment counts for a version when its `metadata.prompt` names it, which `evaluatePrompt()`
 * records. With `thresholds` each named metric must reach its minimum mean; with `noRegression` the
 * candidate must not be worse, beyond noise, than the version it would replace.
 */
export declare function experimentGate(options: ExperimentGateOptions): PromotionGate;
/**
 * Refuses a promotion unless the version is what another label serves now, such as requiring
 * `staging` before `production`.
 */
export declare function servedByGate(label: string): PromotionGate;