import type { InsightPattern } from '../../domain/loop/insight-pattern.js';
import type { BehaviorEventEmitter } from '../behavior/behavior-event-emitter.js';
import { type TunableParameter, type TuningRecord } from '../../domain/loop/tuning-record.js';
/**
 * Apply tunings for patterns whose confidence meets the threshold and that
 * carry an actionable recommendation with a recognized parameter name.
 * Accepts an optional emitter to emit loop.tuning.applied after each tuning.
 */
export declare function applyTunings(workspaceRoot: string, patterns: readonly InsightPattern[], emitter?: BehaviorEventEmitter): Promise<readonly TuningRecord[]>;
/**
 * Check recent scores against pre-tuning scores. If tunings caused a
 * regression (avg score dropped), revert them automatically.
 */
export declare function checkRollback(workspaceRoot: string): Promise<readonly TuningRecord[]>;
/**
 * Revert a single tuning by its ID: restore the previous config value
 * and mark the record as rolled back.
 * Accepts an optional emitter to emit loop.tuning.reverted after rollback.
 */
export declare function revertTuning(workspaceRoot: string, tuningId: string, emitter?: BehaviorEventEmitter): Promise<TuningRecord | null>;
/**
 * Read all tuning records from the NDJSON log.
 * Later entries for the same ID override earlier ones (last-write-wins).
 */
export declare function listTunings(workspaceRoot: string): Promise<readonly TuningRecord[]>;
/**
 * Remove a parameter from the user-locks list, allowing the tuner to
 * modify it again.
 */
export declare function unlockParameter(workspaceRoot: string, param: TunableParameter): Promise<void>;
/**
 * Add a parameter to the user-locks list, preventing the tuner from
 * modifying it.
 */
export declare function lockParameter(workspaceRoot: string, param: TunableParameter): Promise<void>;
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