/**
 * Quality gates for compound extraction.
 *
 * Extracted from compound-extractor.ts — validation and dedup logic that
 * determines whether an extracted solution is worth persisting.
 */
import type { SolutionType } from './solution-format.js';
/** Shape of a solution extracted from git diff or session context */
export interface ExtractedSolution {
    name: string;
    type: SolutionType;
    tags: string[];
    identifiers: string[];
    context: string;
    content: string;
}
/** Gate 0: Is this extraction worth doing? */
export declare function gate0(stats: {
    files: number;
    lines: number;
    hasCodeFiles: boolean;
}): boolean;
/** Gate 1: Structural validation (pure — does not mutate input) */
export declare function gate1(sol: ExtractedSolution): boolean;
/** Gate 2: Toxicity filter */
export declare function gate2(sol: ExtractedSolution): boolean;
/**
 * Gate 2.5: Trivial pattern rejection — 자명한 패턴은 축적할 가치 없음.
 */
export declare function gateTrivial(sol: ExtractedSolution): boolean;
/** Gate 3: Dedup check against existing solutions */
export declare function gate3(sol: ExtractedSolution): 'new' | 're-extract' | 'duplicate';
/** Evaluate an extracted solution against all quality gates */
export declare function evaluateExtractedSolution(sol: ExtractedSolution): {
    action: 'accept' | 'skip' | 'duplicate' | 're-extract';
    message?: string;
};