/**
 * Markdown report formatter for slice topology observability.
 *
 * from `aggregation.ts`, outputs are stable markdown strings suitable
 * for pasting into PR descriptions or `.peaks/PROJECT.md` timeline
 * entries. The CLI subcommand `peaks observability report` wires
 * the file read + aggregation + format pipeline.
 *
 *   - Header: scope, period, generated-at timestamp
 *   - Slice table: rid | transitions | finalState | durationMs | success
 *   - Fanout table: role | count
 *   - Repair-cycle table: sliceRid | cycleCount
 *   - Top-N slowest slices: same as slice table, sorted by durationMs desc
 */
import { type FanoutBreakdown, type Period, type RepairCycleReport, type SliceRollup, type StatusAggregate } from './aggregation.js';
export type ReportInput = {
    scope: 'session' | 'all-sessions';
    scopeId: string;
    period: Period;
    generatedAt: string;
    status: StatusAggregate;
    slices: SliceRollup[];
    fanout: FanoutBreakdown;
    repairCycles: RepairCycleReport;
};
declare function pad(value: string | number, width: number): string;
declare function formatDurationMs(ms: number | null): string;
/**
 * Render the full markdown report. Pure function — no IO. The CLI
 * layer reads events, calls aggregations, and passes the result here.
 */
export declare function renderObservabilityReport(input: ReportInput): string;
export declare const REPORT_FORMAT_CONSTANTS: {
    readonly SLOWEST_TOP_N: 5;
};
export declare const __reportTestHelpers: {
    pad: typeof pad;
    formatDurationMs: typeof formatDurationMs;
};
export {};