/**
 * Context-collapse: read-time projection for worker injection (§4.3 L2).
 *
 * Does NOT modify disk files. Only changes how history is assembled:
 * - distance ≤ 1: full eval JSON
 * - distance 2–3: compact eval JSON
 * - distance ≥ 4: one-line summary
 */
import type { CompactEval } from './microcompact.js';
export type CollapsedEntry = {
    level: 'full';
    stageId: string;
    data: unknown;
} | {
    level: 'compact';
    stageId: string;
    data: CompactEval;
} | {
    level: 'summary';
    stageId: string;
    line: string;
};
/**
 * Collapse eval history based on distance from current cursor.
 */
export declare function collapseHistory(entries: Array<{
    stageId: string;
    index: number;
    evalData: unknown;
}>, currentCursor: number): CollapsedEntry[];
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