/**
 * AST Context Service
 *
 * Smart context extraction for token reduction.
 * Provides budget-aware context assembly at different extraction levels.
 */
import type { ContextLevel, SmartContextOptions, SmartContextResult } from './ast.types.js';
/**
 * Extract smart context for a task
 */
export declare function extractSmartContext(options: SmartContextOptions): SmartContextResult;
/**
 * Context Deduplicator — tracks what was sent across pipeline stages
 */
export declare class ContextDeduplicator {
    private state;
    getBackReference(symbolId: string): null | string;
    recordFileSent(filePath: string, stage: string, level: ContextLevel): void;
    recordSymbolSent(symbolId: string, stage: string, level: ContextLevel): void;
    reset(): void;
    wasFileSent(filePath: string, minLevel: ContextLevel): null | {
        level: ContextLevel;
        stage: string;
    };
    wasSymbolSent(symbolId: string, minLevel: ContextLevel): null | {
        level: ContextLevel;
        stage: string;
    };
}
export declare function getContextDeduplicator(): ContextDeduplicator;
export declare function resetContextDeduplicator(): void;
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