/**
 * Per-file simplicity signals for KISS violation detection.
 *
 * Computes structural metrics (class count, avg method complexity/lines) per file
 * so the LLM can detect over-abstraction even when no single function exceeds
 * a complexity threshold.
 */
import type { CodeChunk } from '../types.js';
export interface FileSimplicitySignal {
    file: string;
    classCount: number;
    functionCount: number;
    methodCount: number;
    avgMethodComplexity: number;
    maxMethodComplexity: number;
    avgMethodLines: number;
    flagged: boolean;
    reason: string;
}
/**
 * Compute per-file simplicity signals from indexed chunks.
 * Only returns signals for files with classCount >= 2 or flagged === true.
 * Only processes files present in filesToAnalyze.
 */
export declare function computeSimplicitySignals(chunks: CodeChunk[], filesToAnalyze: string[]): FileSimplicitySignal[];
/**
 * Serialize simplicity signals to markdown for prompt injection.
 * Returns empty string when there are no signals.
 */
export declare function serializeSimplicitySignals(signals: FileSimplicitySignal[]): string;
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