/**
 * Context-aware detection enhancements.
 *
 * Wraps another detector and applies post-detection intelligence:
 * 1. Context-aware confidence boosting (config keyword density)
 * 3. Proximity-based PII clustering (nearby entities boost each other)
 * 4. Config-block hostname extraction (hostname X -> detect bare X)
 * 9. Learned entity propagation (cross-invocation memory)
 * 10. Confidence decay by frequency (common words lose confidence)
 */
import { DetectedEntity } from "../types.js";
import { BaseDetector } from "./base.js";
export declare class ContextDetector implements BaseDetector {
    readonly name = "context";
    private _inner;
    /** Feature 9: Learned entities from previous invocations. */
    private _learnedEntities;
    constructor(inner: BaseDetector);
    detect(text: string): DetectedEntity[];
    /** Reset learned entities (called on Obfuscator.reset()). */
    reset(): void;
    /** Get count of learned entities. */
    get learnedCount(): number;
    private _boostFromContext;
    private _splitBlocks;
    private _boostByProximity;
    private _extractAndPropagateHostnames;
    private _injectLearnedEntities;
    private _learnEntities;
    private _decayCommonWords;
}