import type { Baseline } from "../types/baseline.js";
import type { ReportManifest } from "../types/report.js";
/** Default baseline name used when no name is specified. */
export declare const DEFAULT_BASELINE_NAME = "default";
export declare function validateBaselineName(name: string): void;
/**
 * Set (create or merge) a baseline from a report manifest.
 * Only scored, non-failed results are included.
 * Existing entries for scenarios not in this report are preserved.
 * If `name` is omitted, uses the default baseline.
 */
export declare function setBaseline(configDir: string, report: ReportManifest, name?: string): Baseline;
/** Read a baseline by name. Returns null if not found. Defaults to the default baseline. */
export declare function readBaseline(configDir: string, name?: string): Baseline | null;
/** List all baselines, sorted by updatedAt (newest first). */
export declare function listBaselines(configDir: string): Baseline[];
/** Delete a baseline. Returns true if it existed. Defaults to the default baseline. */
export declare function deleteBaseline(configDir: string, name?: string): boolean;
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