import type { CapabilityManifest, DiscoveryQuery, DiscoveryRanker } from "./types.js";
import type { CapabilityPackageExport } from "./package.js";
export declare const CAPABILITY_INDEX_VERSION: "0.1";
export type PublicIndexCapability = {
    manifest: CapabilityManifest;
    module: string;
    integrity?: string;
};
export type PublicIndexPackage = {
    name: string;
    version: string;
    source: string;
    repository?: string;
    integrity?: string;
    capabilities: readonly PublicIndexCapability[];
};
export type CapabilityIndexDocument = {
    indexVersion: typeof CAPABILITY_INDEX_VERSION;
    generatedAt: string;
    packages: readonly PublicIndexPackage[];
    federates?: readonly string[];
    metadata?: Readonly<Record<string, string>>;
};
export type PublicIndexResult = {
    package: PublicIndexPackage;
    capability: PublicIndexCapability;
    score: number;
    reasons: readonly string[];
};
export declare function validateCapabilityIndex(value: unknown): string[];
export declare function createCapabilityIndex(packages: readonly PublicIndexPackage[], now?: Date, options?: {
    federates?: readonly string[];
    metadata?: Readonly<Record<string, string>>;
}): CapabilityIndexDocument;
export declare function mergeCapabilityIndexes(...indexes: readonly CapabilityIndexDocument[]): CapabilityIndexDocument;
export declare class PublicCapabilityIndex {
    private document;
    constructor(document?: CapabilityIndexDocument);
    snapshot(): CapabilityIndexDocument;
    addPackage(pkg: PublicIndexPackage): this;
    discover(query: DiscoveryQuery | string): PublicIndexResult[];
    discoverWith(ranker: DiscoveryRanker, query: DiscoveryQuery | string): Promise<PublicIndexResult[]>;
}
export declare function packageExportsToIndexCapabilities(exports: Record<string, CapabilityPackageExport>): PublicIndexCapability[];
export declare function fetchCapabilityIndex(url: string, fetchImpl?: typeof fetch): Promise<CapabilityIndexDocument>;
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